{"id":2331,"date":"2026-01-09T13:54:14","date_gmt":"2026-01-09T12:54:14","guid":{"rendered":"https:\/\/www.nickelcasting.com\/?page_id=2331"},"modified":"2026-03-28T15:35:49","modified_gmt":"2026-03-28T14:35:49","slug":"kovar","status":"publish","type":"page","link":"https:\/\/www.nickelcasting.com\/ko\/%eb%8b%88%ec%bc%88-%ed%95%a9%ea%b8%88\/kovar\/","title":{"rendered":"Kovar"},"content":{"rendered":"<div data-elementor-type=\"wp-page\" data-elementor-id=\"2331\" class=\"elementor elementor-2331\" data-elementor-post-type=\"page\">\n\t\t\t\t<div class=\"elementor-element elementor-element-3365d6e e-flex e-con-boxed e-con e-parent\" data-id=\"3365d6e\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-6a4cd01 elementor-widget elementor-widget-html\" data-id=\"6a4cd01\" data-element_type=\"widget\" data-widget_type=\"html.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<link rel=\"stylesheet\" href=\"\/zicss\/nickel6.css\">\n\n<div class=\"product-detail-wrapper\">\n\n    <div class=\"breadcrumbs\">\n        <a href=\"\/ko\/\">\ud648<\/a> \n        <span class=\"separator\">\/<\/span> \n        <a href=\"\/ko\/%eb%8b%88%ec%bc%88-%ed%95%a9%ea%b8%88\/\">\ub2c8\ucf08 \ud569\uae08<\/a>\n        <span class=\"separator\">\/<\/span> \n        Kovar\n    <\/div>\n\n    <div class=\"prod-hero\">\n        <div class=\"prod-image-box\">\n            <img decoding=\"async\" src=\"http:\/\/www.nickelcasting.com\/wp-content\/uploads\/2026\/01\/nickel30.jpg\" alt=\"\ucf54\ubc14 \uc720\ub9ac \ub300 \uae08\uc18d \ubc00\ubd09 \ud569\uae08\">\n        <\/div>\n        \n        <div class=\"prod-info-box\">\n            <h1>Kovar\u00ae<\/h1>\n            <div class=\"prod-subtitle\">UNS K94610 | W.Nr. 1.3981 | ASTM F15<\/div>\n            \n            <p>\n                Kovar\ub294 \uacf5\uce6d 29% \ub2c8\ucf08, 17% \ucf54\ubc1c\ud2b8, 54% \ucca0 \uc81c\uc5b4 \ud33d\ucc3d \ud569\uae08\uc785\ub2c8\ub2e4. \ubd95\uaddc\uc0b0(\uacbd\uc9c8) \uc720\ub9ac \ubc0f \uc54c\ub8e8\ubbf8\ub098 \uc138\ub77c\ubbf9\uacfc \ube44\uc2b7\ud55c \uc5f4\ud33d\ucc3d \uacc4\uc218\ub97c \uac00\uc9c0\uace0 \uc788\uc5b4 \uc2e0\ub8b0\ud560 \uc218 \uc788\ub294 \ubc00\ud3d0 \ubc00\ubd09\uc744 \uc704\ud55c \uc5c5\uacc4 \ud45c\uc900\uc73c\ub85c \ub110\ub9ac \uc54c\ub824\uc838 \uc788\uc2b5\ub2c8\ub2e4.\n            <\/p>\n\n            <ul class=\"key-specs-list\">\n                <li><strong>\uacf5\ud1b5 \uc591\uc2dd:<\/strong> \uc2dc\ud2b8, \uc2a4\ud2b8\ub9bd, \ud50c\ub808\uc774\ud2b8, \ub85c\ub4dc, <a href=\"https:\/\/www.nickelcasting.com\/ko\/product-forms\/wire\/\">\uc640\uc774\uc5b4<\/a>, \ud29c\ube59.<\/li>\n                <li><strong>\uc8fc\uc694 \uae30\ub2a5:<\/strong> \ubd95\uaddc\uc0b0 \uc720\ub9ac \ubc0f \uc54c\ub8e8\ubbf8\ub098\uc758 CTE\uc640 \uc77c\uce58\ud569\ub2c8\ub2e4.<\/li>\n                <li><strong>\uc560\ud50c\ub9ac\ucf00\uc774\uc158:<\/strong> \ubb34\uacb0\uc131 \ub192\uc740 \ubc00\ud3d0 \ubc00\ubd09(\uc9c4\uacf5 \ubc00\ud3d0).<\/li>\n                <li><strong>\ud488\uc9c8:<\/strong> \ud3ec\ud568\ub418\uc9c0 \uc54a\uc740 \ubbf8\uc138 \uad6c\uc870\ub97c \uc704\ud55c \uc774\uc911 \uc6a9\uc735(VIM-VAR).<\/li>\n            <\/ul>\n\n            <div class=\"action-area\">\n                <a href=\"\/ko\/%ec%97%b0%eb%9d%bd%ec%b2%98\/\" class=\"quote-btn\">\uacac\uc801 \uc694\uccad\ud558\uae30<\/a>\n                <a href=\"#\" class=\"download-btn\">\ub370\uc774\ud130\uc2dc\ud2b8 \ub2e4\uc6b4\ub85c\ub4dc<\/a>\n            <\/div>\n        <\/div>\n    <\/div>\n\n    <div class=\"section-head\">\uc65c \ucf54\ubc14\ub97c \uc120\ud0dd\ud574\uc57c \ud560\uae4c\uc694?<\/div>\n    <p>\n        \ub300\ubd80\ubd84\uc758 \uae08\uc18d\uc740 \uac00\uc5f4\ud558\uba74 \uc720\ub9ac\ubcf4\ub2e4 \ud6e8\uc52c \ube60\ub974\uac8c \ud33d\ucc3d\ud569\ub2c8\ub2e4. \uad6c\ub9ac \ud540\uc744 \uc720\ub9ac\uc5d0 \ubc00\ubd09\ud558\ub824\uace0 \ud558\uba74 \uc720\ub9ac\uac00 \uc2dd\uc73c\uba74\uc11c \uae68\uc9c8 \uc218 \uc788\uc2b5\ub2c8\ub2e4. <strong>\ucf54\ubc14\uac00 \uc774 \ubb38\uc81c\ub97c \ud574\uacb0\ud569\ub2c8\ub2e4.<\/strong> \uc5f4\ud33d\ucc3d \uace1\uc120\uc740 \ud30c\uc774\ub809\uc2a4\uc640 \uac19\uc740 \"\ub2e8\ub2e8\ud55c\" \uc720\ub9ac \ubc0f \uc138\ub77c\ubbf9\uacfc -80\u00b0C\uc5d0\uc11c 450\u00b0C\uae4c\uc9c0 \uc644\ubcbd\ud558\uac8c \uc77c\uce58\ud558\uc5ec \uc530\uc774 \uc218\uba85 \ub0b4\ub0b4 \uc2a4\ud2b8\ub808\uc2a4 \uc5c6\uc774 \uc9c4\uacf5 \ubc00\ud3d0 \uc0c1\ud0dc\ub97c \uc720\uc9c0\ud558\ub3c4\ub85d \ubcf4\uc7a5\ud569\ub2c8\ub2e4.\n    <\/p>\n\n    <div class=\"feature-grid\">\n        <div class=\"feature-col\">\n            <h4>\ubc00\ud3d0 \ubc00\ubd09<\/h4>\n            <p>\uc9c4\uacf5 \ud29c\ube0c, X-\uc120 \ud29c\ube0c \ubc0f \uad70\uc6a9 \uc804\uc790 \uc81c\ud488 \ud328\ud0a4\uc9c0\uc5d0 \ud544\uc218\uc801\uc778 \uc9c4\uacf5 \ubc00\ud3d0\ub97c \ubcf4\uc7a5\ud569\ub2c8\ub2e4.<\/p>\n        <\/div>\n        <div class=\"feature-col\">\n            <h4>\uc704\uc0c1 \uc548\uc815\uc131<\/h4>\n            <p>\uc815\ubc00\ud55c \ud654\ud559\uc801 \uc81c\uc5b4\ub97c \ud1b5\ud574 -80\u00b0C\uae4c\uc9c0 \ud569\uae08\uc758 \uc624\uc2a4\ud14c\ub098\uc774\ud2b8 \uad6c\uc870\ub97c \uc720\uc9c0\ud558\uc5ec \uc530\uc5d0 \uade0\uc5f4\uc744 \uc77c\uc73c\ud0ac \uc218 \uc788\ub294 \ubd80\ud53c \ubcc0\ud654\ub97c \ubc29\uc9c0\ud569\ub2c8\ub2e4.<\/p>\n        <\/div>\n        <div class=\"feature-col\">\n            <h4>\uae68\ub057\ud55c \ub9c8\uc774\ud06c\ub85c \uad6c\uc870<\/h4>\n            <p>\ucf54\ubc14\ub294 \uc77c\ubc18\uc801\uc73c\ub85c \uc9c4\uacf5 \uc544\ud06c \uc7ac\uc6a9\uc735(VAR)\uc744 \ud1b5\ud574 \uc0dd\uc0b0\ub418\uc5b4 \ubd88\uc21c\ubb3c\uc744 \ucd5c\uc18c\ud654\ud558\uace0 \uade0\uc77c\ud55c \uc5d0\uce6d \ubc0f \ub3c4\uae08 \ud2b9\uc131\uc744 \ubcf4\uc7a5\ud569\ub2c8\ub2e4.<\/p>\n        <\/div>\n    <\/div>\n\n    <div class=\"section-head\">\ud654\ud559 \uc131\ubd84 (%)<\/div>\n    <div class=\"data-table-wrap\">\n        <table class=\"tech-table\">\n            <thead>\n                <tr>\n                    <th>\uc694\uc18c<\/th>\n                    <th>\ucf58\ud150\uce20(%)<\/th>\n                <\/tr>\n            <\/thead>\n            <tbody>\n                <tr>\n                    <td><strong>\ub2c8\ucf08(Ni)<\/strong><\/td>\n                    <td>29.0<\/td>\n                <\/tr>\n                <tr>\n                    <td><strong>\ucf54\ubc1c\ud2b8 (Co)<\/strong><\/td>\n                    <td>17.0<\/td>\n                <\/tr>\n                <tr>\n                    <td><strong>\ucca0(Fe)<\/strong><\/td>\n                    <td>\uc794\uc561<\/td>\n                <\/tr>\n                <tr>\n                    <td><strong>\ud0c4\uc18c(C)<\/strong><\/td>\n                    <td>\ucd5c\ub300 0.02<\/td>\n                <\/tr>\n                <tr>\n                    <td><strong>\ub9dd\uac04(Mn)<\/strong><\/td>\n                    <td>0.30<\/td>\n                <\/tr>\n                <tr>\n                    <td><strong>\uc2e4\ub9ac\ucf58(Si)<\/strong><\/td>\n                    <td>0.20<\/td>\n                <\/tr>\n            <\/tbody>\n        <\/table>\n        <p style=\"font-size:0.85rem; color:#666; margin-top:10px;\">*\ucc38\uace0: \ud2b9\uc815 \ub2c8\ucf08-\ucf54\ubc1c\ud2b8-\ucca0 \ubc38\ub7f0\uc2a4\ub294 \uc815\ubc00\ud55c \ud33d\ucc3d \uc81c\uc5b4\ub97c \uc704\ud574 \ubcf4\uc815\ub429\ub2c8\ub2e4.<\/p>\n    <\/div>\n\n    <div class=\"section-head\">\ud45c\uc900 \uc0ac\uc591<\/div>\n    <div class=\"data-table-wrap\">\n        <table class=\"tech-table\">\n            <thead>\n                <tr>\n                    <th width=\"30%\">\uc81c\ud488 \uc591\uc2dd<\/th>\n                    <th>\ud45c\uc900(ASTM\/AMS\/MIL)<\/th>\n                <\/tr>\n            <\/thead>\n            <tbody>\n                <tr>\n                    <td><strong>\ubc14, \ub9c9\ub300, \uc640\uc774\uc5b4<\/strong><\/td>\n                    <td>ASTM F15, AMS I-23011 \ud074\ub798\uc2a4 1, MIL-I-23011 \ud074\ub798\uc2a4 1<\/td>\n                <\/tr>\n                <tr>\n                    <td><strong>\uc2dc\ud2b8, \uc2a4\ud2b8\ub9bd, \ud50c\ub808\uc774\ud2b8<\/strong><\/td>\n                    <td>ASTM F15, AMS I-23011 \ud074\ub798\uc2a4 1, MIL-I-23011 \ud074\ub798\uc2a4 1<\/td>\n                <\/tr>\n                <tr>\n                    <td><strong>\ud29c\ube59<\/strong><\/td>\n                    <td>ASTM F15<\/td>\n                <\/tr>\n                <tr>\n                    <td><strong>DIN \ud45c\uc900<\/strong><\/td>\n                    <td>DIN 17745, W.Nr. 1.3981<\/td>\n                <\/tr>\n            <\/tbody>\n        <\/table>\n    <\/div>\n\n    \n    <div class=\"section-head\">Kovar\u00ae\uc5d0 \uc0ac\uc6a9 \uac00\ub2a5\ud55c \uc591\uc2dd(ASTM F15)<\/div>\n    <p style=\"margin-bottom: 25px;\">\n        \ubc18\ub3c4\uccb4, \ud56d\uacf5\uc6b0\uc8fc \ubc0f \uace0\uc9c4\uacf5 \uc804\uc790 \uc0b0\uc5c5\uc758 \uc5c4\uaca9\ud55c \uc694\uad6c \uc0ac\ud56d\uc744 \uc9c0\uc6d0\ud558\uae30 \uc704\ud574 \ub2f9\uc0ac\ub294 \ub525 \ub4dc\ub85c\uc789, \uc2a4\ud0ec\ud551 \ubc0f \uae30\uacc4 \uac00\uacf5\uc5d0 \ucd5c\uc801\ud654\ub41c \uc815\ubc00 \uc81c\uc870 \ud615\ud0dc\ub85c Kovar\ub97c \uacf5\uae09\ud569\ub2c8\ub2e4.\n    <\/p>\n\n    <div class=\"forms-grid\">\n        <a href=\"\/ko\/product-forms\/wire\/\" class=\"form-card-link\">\n            <div class=\"form-card-icon\">\ud83e\uddf5<\/div>\n            <div class=\"form-card-content\">\n                <h4>\uc815\ubc00 \uc2a4\ud2b8\ub9bd \ubc0f \ud638\uc77c<\/h4>\n                <p>\ud50c\ub7ab \ud329, \ud558\uc774\ube0c\ub9ac\ub4dc \ud68c\ub85c \ud328\ud0a4\uc9c0 \ubc0f TO \ud5e4\ub354\uc758 \uace0\uc18d \uc2a4\ud0ec\ud551 \ubc0f \ud3ec\ud1a0 \uc5d0\uce6d\uc5d0 \ucd5c\uc801\ud654\ub41c \ucd08\ubc15\ud615 \ucf54\uc77c \ubc0f \uc2a4\ud2b8\ub9bd\uc785\ub2c8\ub2e4.<\/p>\n            <\/div>\n        <\/a>\n\n        <a href=\"\/ko\/product-forms\/wire\/\" class=\"form-card-link\">\n            <div class=\"form-card-icon\">\ud83e\udea1<\/div>\n            <div class=\"form-card-content\">\n                <h4>\uc530\ub9c1 \uc640\uc774\uc5b4 \ubc0f \ud540<\/h4>\n                <p>\uc5d1\uc2a4\ub808\uc774 \ud29c\ube0c\uc640 \uacfc\ud559 \uae30\uae30\uc5d0 \uc644\ubcbd\ud55c \uc9c4\uacf5 \ubc00\ud3d0 \uc720\ub9ac-\uae08\uc18d \uc530\uc744 \ub9cc\ub4e4\uae30 \uc704\ud574 \ud2b9\ubcc4\ud788 \uc124\uacc4\ub41c \uace0\uc21c\ub3c4 \uc640\uc774\uc5b4\uc785\ub2c8\ub2e4.<\/p>\n            <\/div>\n        <\/a>\n\n        <a href=\"\/ko\/product-forms\/plate-and-sheet\/\" class=\"form-card-link\">\n            <div class=\"form-card-icon\">\ud83d\udd32<\/div>\n            <div class=\"form-card-content\">\n                <h4>\uc2dc\ud2b8 \ubc0f \ud50c\ub808\uc774\ud2b8<\/h4>\n                <p>\uad70\uc6a9 \uc804\uc790 \uc778\ud074\ub85c\uc800 \ubc0f \ub808\uc774\ub354 \ubd80\ud488 \uc81c\uc870\uc5d0 \uad11\ubc94\uc704\ud558\uac8c \uc0ac\uc6a9\ub418\ub294 \ub525 \ub4dc\ub85c\uc789 \ud2b9\uc131\uc774 \ub6f0\uc5b4\ub09c \ud3c9\ud3c9\ud55c \uc2a4\ud1a1\uc785\ub2c8\ub2e4.<\/p>\n            <\/div>\n        <\/a>\n\n        <a href=\"\/ko\/product-forms\/bar\/\" class=\"form-card-link\">\n            <div class=\"form-card-icon\">\ud83d\udccf<\/div>\n            <div class=\"form-card-content\">\n                <h4>\ubc14 &amp; \ub85c\ub4dc<\/h4>\n                <p>\uace0\uc9c4\uacf5 \ud53c\ub4dc\uc2a4\ub8e8, \ub9c8\uc774\ud06c\ub85c\ud30c \ud29c\ube0c \ubc0f \uc815\ud569 \ud655\uc7a5 \uc870\uc778\ud2b8\uc758 \uc815\ubc00 CNC \uac00\uacf5\uc744 \uc704\ud574 \uc81c\uacf5\ub418\ub294 \uc6d0\ud615 \ubd09\uc7ac\uc785\ub2c8\ub2e4.<\/p>\n            <\/div>\n        <\/a>\n\n        <a href=\"\/ko\/product-forms\/pipe-and-tube\/\" class=\"form-card-link\">\n            <div class=\"form-card-icon\">\ud83d\ude87<\/div>\n            <div class=\"form-card-content\">\n                <h4>\uc2ec\ub9ac\uc2a4 \ud29c\ube59<\/h4>\n                <p>\uace0\ucd9c\ub825 \uc804\uc1a1 \ud29c\ube0c, \ub808\uc774\uc800 \uc778\ud074\ub85c\uc800 \ubc0f \ud2b9\uc218 \uc758\ub8cc \uc7a5\ube44\uc758 \uc81c\uc791\uc5d0 \uc0ac\uc6a9\ub418\ub294 \uc815\ubc00 \ud29c\ube0c\uc785\ub2c8\ub2e4.<\/p>\n            <\/div>\n        <\/a>\n    <\/div>\n    <div class=\"section-head\">\uc5f4\ud33d\ucc3d \uacc4\uc218(\uc77c\ubc18)<\/div>\n    <div class=\"data-table-wrap\">\n        <table class=\"tech-table\">\n            <thead>\n                <tr>\n                    <th>\uc628\ub3c4 \ubc94\uc704<\/th>\n                    <th>\ud3c9\uade0 CTE(\u00b5m\/m-\u00b0C)<\/th>\n                    <th>\ub9e4\uce58<\/th>\n                <\/tr>\n            <\/thead>\n            <tbody>\n                <tr>\n                    <td><strong>30 - 200\u00b0C<\/strong><\/td>\n                    <td>5.2<\/td>\n                    <td>\uacbd\uc9c8 \uc720\ub9ac(\ubd95\uaddc\uc0b0)<\/td>\n                <\/tr>\n                <tr>\n                    <td><strong>30 - 300\u00b0C<\/strong><\/td>\n                    <td>5.1<\/td>\n                    <td>\uc54c\ub8e8\ubbf8\ub098 \uc138\ub77c\ubbf9(92% - 99%)<\/td>\n                <\/tr>\n                <tr>\n                    <td><strong>30 - 400\u00b0C<\/strong><\/td>\n                    <td>4.9<\/td>\n                    <td>\uc0ac\ud30c\uc774\uc5b4 \/ \ub8e8\ube44<\/td>\n                <\/tr>\n                <tr>\n                    <td><strong>30 - 450\u00b0C<\/strong><\/td>\n                    <td>5.3<\/td>\n                    <td>\ud30c\uc6cc \ud29c\ube0c \uc720\ub9ac<\/td>\n                <\/tr>\n            <\/tbody>\n        <\/table>\n    <\/div>\n\n    <div class=\"section-head\">\uc77c\ubc18\uc801\uc778 \uc560\ud50c\ub9ac\ucf00\uc774\uc158<\/div>\n    <div class=\"app-list\">\n        <div class=\"app-card\">\n            <h4>\ud30c\uc6cc \ud29c\ube0c<\/h4>\n            <p>\uc9c4\uacf5 \ubb34\uacb0\uc131\uc774 \uc694\uad6c\ub418\ub294 \ud22c\uacfc\uad00, \uc774\ub3d9\ud615 \ud30c\ub3d9\uad00(TWT) \ubc0f X-\uc120 \ud29c\ube0c.<\/p>\n        <\/div>\n        <div class=\"app-card\">\n            <h4>\uc804\uc790 \ud328\ud0a4\uc9c0<\/h4>\n            <p>\ud2b8\ub79c\uc9c0\uc2a4\ud130 \uc544\uc6c3\ub77c\uc778(TO \ud5e4\ub354), \ud558\uc774\ube0c\ub9ac\ub4dc \ud68c\ub85c \ud328\ud0a4\uc9c0 \ubc0f \ud50c\ub7ab \ud329.<\/p>\n        <\/div>\n        <div class=\"app-card\">\n            <h4>\uacfc\ud559 \uae30\uae30<\/h4>\n            <p>\uace0\uc9c4\uacf5 \ucc54\ubc84 \ubc0f \uc9c8\ub7c9 \ubd84\uc11d\uae30\uc6a9 \ud53c\ub4dc\uc2a4\ub8e8.<\/p>\n        <\/div>\n        <div class=\"app-card\">\n            <h4>\uc870\uba85<\/h4>\n            <p>\uace0\ud718\ub3c4 \ubc31\uc5f4\ub4f1\uc6a9 \uc544\uc77c\ub81b \ubc0f \ub9ac\ub4dc\uc120.<\/p>\n        <\/div>\n    <\/div>\n\n    <div id=\"quote-form\" style=\"margin-top: 60px; background: #f1f4f6; padding: 40px; border-radius: 5px; text-align: center;\">\n        <h3 style=\"color: var(--prod-primary); margin-top: 0;\">\ucf54\ubc14(ASTM F15) \uc18c\uc7ac\uac00 \ud544\uc694\ud558\uc2e0\uac00\uc694?<\/h3>\n        <p style=\"max-width: 600px; margin: 0 auto 20px;\">\n            \ub2f9\uc0ac\ub294 \ud310\uc7ac, \uc2dc\ud2b8, \ucf54\uc77c, \ub85c\ub4dc \ubc0f \uc640\uc774\uc5b4 \ud615\ud0dc\uc758 \ucf54\ubc14 \uc7ac\uace0\ub97c \ud48d\ubd80\ud558\uac8c \ubcf4\uc720\ud558\uace0 \uc788\uc2b5\ub2c8\ub2e4.\n            \uc774 \uc18c\uc7ac\ub294 \ub525 \ub4dc\ub85c\uc789 \ubc0f \uc2a4\ud0ec\ud551\uc5d0 \uc801\ud569\ud569\ub2c8\ub2e4.\n        <\/p>\n        <a href=\"\/ko\/%ec%97%b0%eb%9d%bd%ec%b2%98\/\" class=\"quote-btn\">\ube60\ub978 \uacac\uc801 \ubc1b\uae30<\/a>\n    <\/div>\n\n<\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"<p>Home \/ Nickel Alloys \/ Kovar Kovar\u00ae UNS K94610 | W.Nr. 1.3981 | ASTM F15 Kovar is a nominal 29% nickel, 17% cobalt, 54% iron controlled-expansion alloy. It is widely known for having a coefficient of thermal expansion that matches borosilicate (hard) glasses and alumina ceramics, making it the industry standard for reliable hermetic sealing. [&hellip;]<\/p>","protected":false},"author":1,"featured_media":0,"parent":1831,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"elementor_theme","meta":{"_uag_custom_page_level_css":"","site-sidebar-layout":"no-sidebar","site-content-layout":"page-builder","ast-site-content-layout":"full-width-container","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"disabled","footer-sml-layout":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center 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applications."],"rank_math_focus_keyword":["kovar"],"_wp_page_template":["elementor_theme"],"site-sidebar-layout":["no-sidebar"],"ast-site-content-layout":["full-width-container"],"site-content-style":["default"],"site-sidebar-style":["default"],"theme-transparent-header-meta":["default"],"_elementor_edit_mode":["builder"],"_astra_content_layout_flag":["disabled"],"ast-title-bar-display":["disabled"],"ast-featured-img":["disabled"],"site-content-layout":["page-builder"],"_elementor_template_type":["wp-page"],"_elementor_version":["3.33.2"],"_elementor_pro_version":["3.32.3"],"_elementor_data":["[{\"id\":\"3365d6e\",\"elType\":\"container\",\"settings\":{\"flex_direction\":\"column\",\"display_condition_list\":[{\"display_condition_login_status\":\"subscriber\",\"_id\":\"770e0ad\"}]},\"elements\":[{\"id\":\"6a4cd01\",\"elType\":\"widget\",\"settings\":{\"html\":\"<link rel=\\\"stylesheet\\\" href=\\\"\\\/zicss\\\/nickel6.css\\\">\\n\\n<div class=\\\"product-detail-wrapper\\\">\\n\\n    <div class=\\\"breadcrumbs\\\">\\n        <a href=\\\"\\\/\\\">Home<\\\/a> \\n        <span class=\\\"separator\\\">\\\/<\\\/span> \\n        <a href=\\\"\\\/nickel-alloys\\\/\\\">Nickel Alloys<\\\/a>\\n        <span class=\\\"separator\\\">\\\/<\\\/span> \\n        Kovar\\n    <\\\/div>\\n\\n    <div class=\\\"prod-hero\\\">\\n        <div class=\\\"prod-image-box\\\">\\n            <img src=\\\"http:\\\/\\\/www.nickelcasting.com\\\/wp-content\\\/uploads\\\/2026\\\/01\\\/nickel30.jpg\\\" alt=\\\"Kovar Glass to Metal Sealing Alloy\\\">\\n        <\\\/div>\\n        \\n        <div class=\\\"prod-info-box\\\">\\n            <h1>Kovar\\u00ae<\\\/h1>\\n            <div class=\\\"prod-subtitle\\\">UNS K94610 | W.Nr. 1.3981 | ASTM F15<\\\/div>\\n            \\n            <p>\\n                Kovar is a nominal 29% nickel, 17% cobalt, 54% iron controlled-expansion alloy. It is widely known for having a coefficient of thermal expansion that matches borosilicate (hard) glasses and alumina ceramics, making it the industry standard for reliable hermetic sealing.\\n            <\\\/p>\\n\\n            <ul class=\\\"key-specs-list\\\">\\n                <li><strong>Common Forms:<\\\/strong> Sheet, Strip, Plate, Rod, Wire, Tubing.<\\\/li>\\n                <li><strong>Key Feature:<\\\/strong> Matches CTE of Borosilicate Glass & Alumina.<\\\/li>\\n                <li><strong>Application:<\\\/strong> High-integrity Hermetic Seals (Vacuum Tight).<\\\/li>\\n                <li><strong>Quality:<\\\/strong> Double melted (VIM-VAR) for inclusion-free microstructure.<\\\/li>\\n            <\\\/ul>\\n\\n            <div class=\\\"action-area\\\">\\n                <a href=\\\"\\\/contact\\\/\\\" class=\\\"quote-btn\\\">Request a Quote<\\\/a>\\n                <a href=\\\"#\\\" class=\\\"download-btn\\\">Download Datasheet<\\\/a>\\n            <\\\/div>\\n        <\\\/div>\\n    <\\\/div>\\n\\n    <div class=\\\"section-head\\\">Why Choose Kovar?<\\\/div>\\n    <p>\\n        Most metals expand much faster than glass when heated. If you try to seal a copper pin into glass, the glass will shatter as it cools. <strong>Kovar solves this.<\\\/strong> Its thermal expansion curve tracks perfectly with \\\"hard\\\" glasses (like Pyrex) and ceramics from -80\\u00b0C to 450\\u00b0C, ensuring that the seal remains stress-free and vacuum-tight throughout its life.\\n    <\\\/p>\\n\\n    <div class=\\\"feature-grid\\\">\\n        <div class=\\\"feature-col\\\">\\n            <h4>Hermetic Sealing<\\\/h4>\\n            <p>Ensures vacuum-tight seals essential for vacuum tubes, X-ray tubes, and military electronics packages.<\\\/p>\\n        <\\\/div>\\n        <div class=\\\"feature-col\\\">\\n            <h4>Phase Stability<\\\/h4>\\n            <p>Precise chemistry controls ensure the alloy maintains its austenitic structure down to -80\\u00b0C, preventing volume changes that could crack seals.<\\\/p>\\n        <\\\/div>\\n        <div class=\\\"feature-col\\\">\\n            <h4>Clean Microstructure<\\\/h4>\\n            <p>Our Kovar is typically produced via Vacuum Arc Remelting (VAR) to minimize impurities, ensuring uniform etching and plating properties.<\\\/p>\\n        <\\\/div>\\n    <\\\/div>\\n\\n    <div class=\\\"section-head\\\">Chemical Composition (%)<\\\/div>\\n    <div class=\\\"data-table-wrap\\\">\\n        <table class=\\\"tech-table\\\">\\n            <thead>\\n                <tr>\\n                    <th>Element<\\\/th>\\n                    <th>Content (%)<\\\/th>\\n                <\\\/tr>\\n            <\\\/thead>\\n            <tbody>\\n                <tr>\\n                    <td><strong>Nickel (Ni)<\\\/strong><\\\/td>\\n                    <td>29.0<\\\/td>\\n                <\\\/tr>\\n                <tr>\\n                    <td><strong>Cobalt (Co)<\\\/strong><\\\/td>\\n                    <td>17.0<\\\/td>\\n                <\\\/tr>\\n                <tr>\\n                    <td><strong>Iron (Fe)<\\\/strong><\\\/td>\\n                    <td>Balance<\\\/td>\\n                <\\\/tr>\\n                <tr>\\n                    <td><strong>Carbon (C)<\\\/strong><\\\/td>\\n                    <td>0.02 max<\\\/td>\\n                <\\\/tr>\\n                <tr>\\n                    <td><strong>Manganese (Mn)<\\\/strong><\\\/td>\\n                    <td>0.30<\\\/td>\\n                <\\\/tr>\\n                <tr>\\n                    <td><strong>Silicon (Si)<\\\/strong><\\\/td>\\n                    <td>0.20<\\\/td>\\n                <\\\/tr>\\n            <\\\/tbody>\\n        <\\\/table>\\n        <p style=\\\"font-size:0.85rem; color:#666; margin-top:10px;\\\">*Note: The specific Nickel-Cobalt-Iron balance is calibrated for precise expansion control.<\\\/p>\\n    <\\\/div>\\n\\n    <div class=\\\"section-head\\\">Standard Specifications<\\\/div>\\n    <div class=\\\"data-table-wrap\\\">\\n        <table class=\\\"tech-table\\\">\\n            <thead>\\n                <tr>\\n                    <th width=\\\"30%\\\">Product Form<\\\/th>\\n                    <th>Standards (ASTM \\\/ AMS \\\/ MIL)<\\\/th>\\n                <\\\/tr>\\n            <\\\/thead>\\n            <tbody>\\n                <tr>\\n                    <td><strong>Bar, Rod, Wire<\\\/strong><\\\/td>\\n                    <td>ASTM F15, AMS I-23011 Class 1, MIL-I-23011 Class 1<\\\/td>\\n                <\\\/tr>\\n                <tr>\\n                    <td><strong>Sheet, Strip, Plate<\\\/strong><\\\/td>\\n                    <td>ASTM F15, AMS I-23011 Class 1, MIL-I-23011 Class 1<\\\/td>\\n                <\\\/tr>\\n                <tr>\\n                    <td><strong>Tubing<\\\/strong><\\\/td>\\n                    <td>ASTM F15<\\\/td>\\n                <\\\/tr>\\n                <tr>\\n                    <td><strong>DIN Standard<\\\/strong><\\\/td>\\n                    <td>DIN 17745, W.Nr. 1.3981<\\\/td>\\n                <\\\/tr>\\n            <\\\/tbody>\\n        <\\\/table>\\n    <\\\/div>\\n\\n    \\n    <div class=\\\"section-head\\\">Available Forms for Kovar\\u00ae (ASTM F15)<\\\/div>\\n    <p style=\\\"margin-bottom: 25px;\\\">\\n        To support the rigorous demands of the semiconductor, aerospace, and high-vacuum electronics industries, we supply Kovar in precision-manufactured forms optimized for deep drawing, stamping, and machining.\\n    <\\\/p>\\n\\n    <div class=\\\"forms-grid\\\">\\n        <a href=\\\"\\\/product-forms\\\/wire\\\/\\\" class=\\\"form-card-link\\\">\\n            <div class=\\\"form-card-icon\\\">\\ud83e\\uddf5<\\\/div>\\n            <div class=\\\"form-card-content\\\">\\n                <h4>Precision Strip & Foil<\\\/h4>\\n                <p>Ultra-thin coil and strip optimized for high-speed stamping and photo-etching of flat packs, hybrid circuit packages, and TO headers.<\\\/p>\\n            <\\\/div>\\n        <\\\/a>\\n\\n        <a href=\\\"\\\/product-forms\\\/wire\\\/\\\" class=\\\"form-card-link\\\">\\n            <div class=\\\"form-card-icon\\\">\\ud83e\\udea1<\\\/div>\\n            <div class=\\\"form-card-content\\\">\\n                <h4>Sealing Wire & Pin<\\\/h4>\\n                <p>High-purity wire engineered specifically for creating flawless, vacuum-tight glass-to-metal seals in x-ray tubes and scientific instruments.<\\\/p>\\n            <\\\/div>\\n        <\\\/a>\\n\\n        <a href=\\\"\\\/product-forms\\\/plate-and-sheet\\\/\\\" class=\\\"form-card-link\\\">\\n            <div class=\\\"form-card-icon\\\">\\ud83d\\udd32<\\\/div>\\n            <div class=\\\"form-card-content\\\">\\n                <h4>Sheet & Plate<\\\/h4>\\n                <p>Flat stock with excellent deep drawing properties, used extensively for manufacturing military-grade electronic enclosures and radar components.<\\\/p>\\n            <\\\/div>\\n        <\\\/a>\\n\\n        <a href=\\\"\\\/product-forms\\\/bar\\\/\\\" class=\\\"form-card-link\\\">\\n            <div class=\\\"form-card-icon\\\">\\ud83d\\udccf<\\\/div>\\n            <div class=\\\"form-card-content\\\">\\n                <h4>Bar & Rod<\\\/h4>\\n                <p>Round bar stock supplied for the precision CNC machining of high-vacuum feed-throughs, microwave tubes, and matched-expansion joints.<\\\/p>\\n            <\\\/div>\\n        <\\\/a>\\n\\n        <a href=\\\"\\\/product-forms\\\/pipe-and-tube\\\/\\\" class=\\\"form-card-link\\\">\\n            <div class=\\\"form-card-icon\\\">\\ud83d\\ude87<\\\/div>\\n            <div class=\\\"form-card-content\\\">\\n                <h4>Seamless Tubing<\\\/h4>\\n                <p>Precision tubing utilized in the construction of high-power transmitting tubes, laser enclosures, and specialized medical equipment.<\\\/p>\\n            <\\\/div>\\n        <\\\/a>\\n    <\\\/div>\\n    <div class=\\\"section-head\\\">Coefficient of Thermal Expansion (Typical)<\\\/div>\\n    <div class=\\\"data-table-wrap\\\">\\n        <table class=\\\"tech-table\\\">\\n            <thead>\\n                <tr>\\n                    <th>Temperature Range<\\\/th>\\n                    <th>Average CTE (\\u00b5m\\\/m\\u00b7\\u00b0C)<\\\/th>\\n                    <th>Matches<\\\/th>\\n                <\\\/tr>\\n            <\\\/thead>\\n            <tbody>\\n                <tr>\\n                    <td><strong>30 - 200\\u00b0C<\\\/strong><\\\/td>\\n                    <td>5.2<\\\/td>\\n                    <td>Hard Glass (Borosilicate)<\\\/td>\\n                <\\\/tr>\\n                <tr>\\n                    <td><strong>30 - 300\\u00b0C<\\\/strong><\\\/td>\\n                    <td>5.1<\\\/td>\\n                    <td>Alumina Ceramics (92% - 99%)<\\\/td>\\n                <\\\/tr>\\n                <tr>\\n                    <td><strong>30 - 400\\u00b0C<\\\/strong><\\\/td>\\n                    <td>4.9<\\\/td>\\n                    <td>Sapphire \\\/ Ruby<\\\/td>\\n                <\\\/tr>\\n                <tr>\\n                    <td><strong>30 - 450\\u00b0C<\\\/strong><\\\/td>\\n                    <td>5.3<\\\/td>\\n                    <td>Power Tube Glass<\\\/td>\\n                <\\\/tr>\\n            <\\\/tbody>\\n        <\\\/table>\\n    <\\\/div>\\n\\n    <div class=\\\"section-head\\\">Typical Applications<\\\/div>\\n    <div class=\\\"app-list\\\">\\n        <div class=\\\"app-card\\\">\\n            <h4>Power Tubes<\\\/h4>\\n            <p>Transmitting tubes, traveling wave tubes (TWT), and X-ray tubes requiring vacuum integrity.<\\\/p>\\n        <\\\/div>\\n        <div class=\\\"app-card\\\">\\n            <h4>Electronic Packages<\\\/h4>\\n            <p>Transistor outlines (TO headers), hybrid circuit packages, and flat packs.<\\\/p>\\n        <\\\/div>\\n        <div class=\\\"app-card\\\">\\n            <h4>Scientific Instruments<\\\/h4>\\n            <p>Feed-throughs for high-vacuum chambers and mass spectrometers.<\\\/p>\\n        <\\\/div>\\n        <div class=\\\"app-card\\\">\\n            <h4>Lighting<\\\/h4>\\n            <p>Eyelets and lead wires for high-intensity incandescent lamps.<\\\/p>\\n        <\\\/div>\\n    <\\\/div>\\n\\n    <div id=\\\"quote-form\\\" style=\\\"margin-top: 60px; background: #f1f4f6; padding: 40px; border-radius: 5px; text-align: center;\\\">\\n        <h3 style=\\\"color: var(--prod-primary); margin-top: 0;\\\">Need Kovar (ASTM F15) Material?<\\\/h3>\\n        <p style=\\\"max-width: 600px; margin: 0 auto 20px;\\\">\\n            We maintain a deep inventory of Kovar in plate, sheet, coil, rod, and wire forms.\\n            Material is suitable for deep drawing and stamping.\\n        <\\\/p>\\n        <a href=\\\"\\\/contact\\\/\\\" class=\\\"quote-btn\\\">Get a Quick Quote<\\\/a>\\n    <\\\/div>\\n\\n<\\\/div>\",\"display_condition_list\":[{\"display_condition_login_status\":\"subscriber\",\"_id\":\"6c618c2\"}]},\"elements\":[],\"widgetType\":\"html\"}],\"isInner\":false}]"],"rank_math_og_content_image":["a:2:{s:5:\"check\";s:32:\"cd8fcf489e36024dd1f93b0917c2a8c6\";s:6:\"images\";a:1:{i:0;i:2321;}}"],"ilj_blacklistdefinition":["a:0:{}"],"ilj_linkdefinition":["a:1:{i:0;s:5:\"Kovar\";}"],"astra-migrate-meta-layouts":["set"],"_elementor_page_settings":["a:0:{}"],"_elementor_controls_usage":["a:2:{s:4:\"html\";a:3:{s:5:\"count\";i:1;s:15:\"control_percent\";i:0;s:8:\"controls\";a:2:{s:7:\"content\";a:1:{s:13:\"section_title\";a:1:{s:4:\"html\";i:1;}}s:8:\"advanced\";a:1:{s:26:\"display_conditions_section\";a:1:{s:22:\"display_condition_list\";i:1;}}}}s:9:\"container\";a:3:{s:5:\"count\";i:1;s:15:\"control_percent\";i:0;s:8:\"controls\";a:2:{s:6:\"layout\";a:1:{s:24:\"section_layout_container\";a:1:{s:14:\"flex_direction\";i:1;}}s:8:\"advanced\";a:1:{s:26:\"display_conditions_section\";a:1:{s:22:\"display_condition_list\";i:1;}}}}}"],"_uag_page_assets":["a:9:{s:3:\"css\";s:263:\".uag-blocks-common-selector{z-index:var(--z-index-desktop) 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data-element_type=\\\"container\\\">\\n\\t\\t\\t\\t\\t<div class=\\\"e-con-inner\\\">\\n\\t\\t\\t\\t<div class=\\\"elementor-element elementor-element-6a4cd01 elementor-widget elementor-widget-html\\\" data-id=\\\"6a4cd01\\\" data-element_type=\\\"widget\\\" data-widget_type=\\\"html.default\\\">\\n\\t\\t\\t\\t<div class=\\\"elementor-widget-container\\\">\\n\\t\\t\\t\\t\\t<link rel=\\\"stylesheet\\\" href=\\\"\\\/zicss\\\/nickel6.css\\\">\\n\\n<div class=\\\"product-detail-wrapper\\\">\\n\\n    <div class=\\\"breadcrumbs\\\">\\n        <a href=\\\"\\\/\\\">Home<\\\/a> \\n        <span class=\\\"separator\\\">\\\/<\\\/span> \\n        <a href=\\\"\\\/nickel-alloys\\\/\\\">Nickel Alloys<\\\/a>\\n        <span class=\\\"separator\\\">\\\/<\\\/span> \\n        Kovar\\n    <\\\/div>\\n\\n    <div class=\\\"prod-hero\\\">\\n        <div class=\\\"prod-image-box\\\">\\n            <img src=\\\"http:\\\/\\\/www.nickelcasting.com\\\/wp-content\\\/uploads\\\/2026\\\/01\\\/nickel30.jpg\\\" alt=\\\"Kovar Glass to Metal Sealing Alloy\\\">\\n        <\\\/div>\\n        \\n        <div class=\\\"prod-info-box\\\">\\n            <h1>Kovar\\u00ae<\\\/h1>\\n            <div class=\\\"prod-subtitle\\\">UNS K94610 | W.Nr. 1.3981 | ASTM F15<\\\/div>\\n            \\n            <p>\\n                Kovar is a nominal 29% nickel, 17% cobalt, 54% iron controlled-expansion alloy. It is widely known for having a coefficient of thermal expansion that matches borosilicate (hard) glasses and alumina ceramics, making it the industry standard for reliable hermetic sealing.\\n            <\\\/p>\\n\\n            <ul class=\\\"key-specs-list\\\">\\n                <li><strong>Common Forms:<\\\/strong> Sheet, Strip, Plate, Rod, Wire, Tubing.<\\\/li>\\n                <li><strong>Key Feature:<\\\/strong> Matches CTE of Borosilicate Glass & Alumina.<\\\/li>\\n                <li><strong>Application:<\\\/strong> High-integrity Hermetic Seals (Vacuum Tight).<\\\/li>\\n                <li><strong>Quality:<\\\/strong> Double melted (VIM-VAR) for inclusion-free microstructure.<\\\/li>\\n            <\\\/ul>\\n\\n            <div class=\\\"action-area\\\">\\n                <a href=\\\"\\\/contact\\\/\\\" class=\\\"quote-btn\\\">Request a Quote<\\\/a>\\n                <a href=\\\"#\\\" class=\\\"download-btn\\\">Download Datasheet<\\\/a>\\n            <\\\/div>\\n        <\\\/div>\\n    <\\\/div>\\n\\n    <div class=\\\"section-head\\\">Why Choose Kovar?<\\\/div>\\n    <p>\\n        Most metals expand much faster than glass when heated. If you try to seal a copper pin into glass, the glass will shatter as it cools. <strong>Kovar solves this.<\\\/strong> Its thermal expansion curve tracks perfectly with \\\"hard\\\" glasses (like Pyrex) and ceramics from -80\\u00b0C to 450\\u00b0C, ensuring that the seal remains stress-free and vacuum-tight throughout its life.\\n    <\\\/p>\\n\\n    <div class=\\\"feature-grid\\\">\\n        <div class=\\\"feature-col\\\">\\n            <h4>Hermetic Sealing<\\\/h4>\\n            <p>Ensures vacuum-tight seals essential for vacuum tubes, X-ray tubes, and military electronics packages.<\\\/p>\\n        <\\\/div>\\n        <div class=\\\"feature-col\\\">\\n            <h4>Phase Stability<\\\/h4>\\n            <p>Precise chemistry controls ensure the alloy maintains its austenitic structure down to -80\\u00b0C, preventing volume changes that could crack seals.<\\\/p>\\n        <\\\/div>\\n        <div class=\\\"feature-col\\\">\\n            <h4>Clean Microstructure<\\\/h4>\\n            <p>Our Kovar is typically produced via Vacuum Arc Remelting (VAR) to minimize impurities, ensuring uniform etching and plating properties.<\\\/p>\\n        <\\\/div>\\n    <\\\/div>\\n\\n    <div class=\\\"section-head\\\">Chemical Composition (%)<\\\/div>\\n    <div class=\\\"data-table-wrap\\\">\\n        <table class=\\\"tech-table\\\">\\n            <thead>\\n                <tr>\\n                    <th>Element<\\\/th>\\n                    <th>Content (%)<\\\/th>\\n                <\\\/tr>\\n            <\\\/thead>\\n            <tbody>\\n                <tr>\\n                    <td><strong>Nickel (Ni)<\\\/strong><\\\/td>\\n                    <td>29.0<\\\/td>\\n                <\\\/tr>\\n                <tr>\\n                    <td><strong>Cobalt (Co)<\\\/strong><\\\/td>\\n                    <td>17.0<\\\/td>\\n                <\\\/tr>\\n                <tr>\\n                    <td><strong>Iron (Fe)<\\\/strong><\\\/td>\\n                    <td>Balance<\\\/td>\\n                <\\\/tr>\\n                <tr>\\n                    <td><strong>Carbon (C)<\\\/strong><\\\/td>\\n                    <td>0.02 max<\\\/td>\\n                <\\\/tr>\\n                <tr>\\n                    <td><strong>Manganese (Mn)<\\\/strong><\\\/td>\\n                    <td>0.30<\\\/td>\\n                <\\\/tr>\\n                <tr>\\n                    <td><strong>Silicon (Si)<\\\/strong><\\\/td>\\n                    <td>0.20<\\\/td>\\n                <\\\/tr>\\n            <\\\/tbody>\\n        <\\\/table>\\n        <p style=\\\"font-size:0.85rem; color:#666; margin-top:10px;\\\">*Note: The specific Nickel-Cobalt-Iron balance is calibrated for precise expansion control.<\\\/p>\\n    <\\\/div>\\n\\n    <div class=\\\"section-head\\\">Standard Specifications<\\\/div>\\n    <div class=\\\"data-table-wrap\\\">\\n        <table class=\\\"tech-table\\\">\\n            <thead>\\n                <tr>\\n                    <th width=\\\"30%\\\">Product Form<\\\/th>\\n                    <th>Standards (ASTM \\\/ AMS \\\/ MIL)<\\\/th>\\n                <\\\/tr>\\n            <\\\/thead>\\n            <tbody>\\n                <tr>\\n                    <td><strong>Bar, Rod, Wire<\\\/strong><\\\/td>\\n                    <td>ASTM F15, AMS I-23011 Class 1, MIL-I-23011 Class 1<\\\/td>\\n                <\\\/tr>\\n                <tr>\\n                    <td><strong>Sheet, Strip, Plate<\\\/strong><\\\/td>\\n                    <td>ASTM F15, AMS I-23011 Class 1, MIL-I-23011 Class 1<\\\/td>\\n                <\\\/tr>\\n                <tr>\\n                    <td><strong>Tubing<\\\/strong><\\\/td>\\n                    <td>ASTM F15<\\\/td>\\n                <\\\/tr>\\n                <tr>\\n                    <td><strong>DIN Standard<\\\/strong><\\\/td>\\n                    <td>DIN 17745, W.Nr. 1.3981<\\\/td>\\n                <\\\/tr>\\n            <\\\/tbody>\\n        <\\\/table>\\n    <\\\/div>\\n\\n    \\n    <div class=\\\"section-head\\\">Available Forms for Kovar\\u00ae (ASTM F15)<\\\/div>\\n    <p style=\\\"margin-bottom: 25px;\\\">\\n        To support the rigorous demands of the semiconductor, aerospace, and high-vacuum electronics industries, we supply Kovar in precision-manufactured forms optimized for deep drawing, stamping, and machining.\\n    <\\\/p>\\n\\n    <div class=\\\"forms-grid\\\">\\n        <a href=\\\"\\\/product-forms\\\/wire\\\/\\\" class=\\\"form-card-link\\\">\\n            <div class=\\\"form-card-icon\\\">\\ud83e\\uddf5<\\\/div>\\n            <div class=\\\"form-card-content\\\">\\n                <h4>Precision Strip & Foil<\\\/h4>\\n                <p>Ultra-thin coil and strip optimized for high-speed stamping and photo-etching of flat packs, hybrid circuit packages, and TO headers.<\\\/p>\\n            <\\\/div>\\n        <\\\/a>\\n\\n        <a href=\\\"\\\/product-forms\\\/wire\\\/\\\" class=\\\"form-card-link\\\">\\n            <div class=\\\"form-card-icon\\\">\\ud83e\\udea1<\\\/div>\\n            <div class=\\\"form-card-content\\\">\\n                <h4>Sealing Wire & Pin<\\\/h4>\\n                <p>High-purity wire engineered specifically for creating flawless, vacuum-tight glass-to-metal seals in x-ray tubes and scientific instruments.<\\\/p>\\n            <\\\/div>\\n        <\\\/a>\\n\\n        <a href=\\\"\\\/product-forms\\\/plate-and-sheet\\\/\\\" class=\\\"form-card-link\\\">\\n            <div class=\\\"form-card-icon\\\">\\ud83d\\udd32<\\\/div>\\n            <div class=\\\"form-card-content\\\">\\n                <h4>Sheet & Plate<\\\/h4>\\n                <p>Flat stock with excellent deep drawing properties, used extensively for manufacturing military-grade electronic enclosures and radar components.<\\\/p>\\n            <\\\/div>\\n        <\\\/a>\\n\\n        <a href=\\\"\\\/product-forms\\\/bar\\\/\\\" class=\\\"form-card-link\\\">\\n            <div class=\\\"form-card-icon\\\">\\ud83d\\udccf<\\\/div>\\n            <div class=\\\"form-card-content\\\">\\n                <h4>Bar & Rod<\\\/h4>\\n                <p>Round bar stock supplied for the precision CNC machining of high-vacuum feed-throughs, microwave tubes, and matched-expansion joints.<\\\/p>\\n            <\\\/div>\\n        <\\\/a>\\n\\n        <a href=\\\"\\\/product-forms\\\/pipe-and-tube\\\/\\\" class=\\\"form-card-link\\\">\\n            <div class=\\\"form-card-icon\\\">\\ud83d\\ude87<\\\/div>\\n            <div class=\\\"form-card-content\\\">\\n                <h4>Seamless Tubing<\\\/h4>\\n                <p>Precision tubing utilized in the construction of high-power transmitting tubes, laser enclosures, and specialized medical equipment.<\\\/p>\\n            <\\\/div>\\n        <\\\/a>\\n    <\\\/div>\\n    <div class=\\\"section-head\\\">Coefficient of Thermal Expansion (Typical)<\\\/div>\\n    <div class=\\\"data-table-wrap\\\">\\n        <table class=\\\"tech-table\\\">\\n            <thead>\\n                <tr>\\n                    <th>Temperature Range<\\\/th>\\n                    <th>Average CTE (\\u00b5m\\\/m\\u00b7\\u00b0C)<\\\/th>\\n                    <th>Matches<\\\/th>\\n                <\\\/tr>\\n            <\\\/thead>\\n            <tbody>\\n                <tr>\\n                    <td><strong>30 - 200\\u00b0C<\\\/strong><\\\/td>\\n                    <td>5.2<\\\/td>\\n                    <td>Hard Glass (Borosilicate)<\\\/td>\\n                <\\\/tr>\\n                <tr>\\n                    <td><strong>30 - 300\\u00b0C<\\\/strong><\\\/td>\\n                    <td>5.1<\\\/td>\\n                    <td>Alumina Ceramics (92% - 99%)<\\\/td>\\n                <\\\/tr>\\n                <tr>\\n                    <td><strong>30 - 400\\u00b0C<\\\/strong><\\\/td>\\n                    <td>4.9<\\\/td>\\n                    <td>Sapphire \\\/ Ruby<\\\/td>\\n                <\\\/tr>\\n                <tr>\\n                    <td><strong>30 - 450\\u00b0C<\\\/strong><\\\/td>\\n                    <td>5.3<\\\/td>\\n                    <td>Power Tube Glass<\\\/td>\\n                <\\\/tr>\\n            <\\\/tbody>\\n        <\\\/table>\\n    <\\\/div>\\n\\n    <div class=\\\"section-head\\\">Typical Applications<\\\/div>\\n    <div class=\\\"app-list\\\">\\n        <div class=\\\"app-card\\\">\\n            <h4>Power Tubes<\\\/h4>\\n            <p>Transmitting tubes, traveling wave tubes (TWT), and X-ray tubes requiring vacuum integrity.<\\\/p>\\n        <\\\/div>\\n        <div class=\\\"app-card\\\">\\n            <h4>Electronic Packages<\\\/h4>\\n            <p>Transistor outlines (TO headers), hybrid circuit packages, and flat packs.<\\\/p>\\n        <\\\/div>\\n        <div class=\\\"app-card\\\">\\n            <h4>Scientific Instruments<\\\/h4>\\n            <p>Feed-throughs for high-vacuum chambers and mass spectrometers.<\\\/p>\\n        <\\\/div>\\n        <div class=\\\"app-card\\\">\\n            <h4>Lighting<\\\/h4>\\n            <p>Eyelets and lead wires for high-intensity incandescent lamps.<\\\/p>\\n        <\\\/div>\\n    <\\\/div>\\n\\n    <div id=\\\"quote-form\\\" style=\\\"margin-top: 60px; background: #f1f4f6; padding: 40px; border-radius: 5px; text-align: center;\\\">\\n        <h3 style=\\\"color: var(--prod-primary); margin-top: 0;\\\">Need Kovar (ASTM F15) Material?<\\\/h3>\\n        <p style=\\\"max-width: 600px; margin: 0 auto 20px;\\\">\\n            We maintain a deep inventory of Kovar in plate, sheet, coil, rod, and wire forms.\\n            Material is suitable for deep drawing and stamping.\\n        <\\\/p>\\n        <a href=\\\"\\\/contact\\\/\\\" class=\\\"quote-btn\\\">Get a Quick Quote<\\\/a>\\n    <\\\/div>\\n\\n<\\\/div>\\t\\t\\t\\t<\\\/div>\\n\\t\\t\\t\\t<\\\/div>\\n\\t\\t\\t\\t\\t<\\\/div>\\n\\t\\t\\t\\t<\\\/div>\\n\\t\\t\",\"scripts\":[],\"styles\":[]}}"]},"uagb_featured_image_src":{"full":false,"thumbnail":false,"medium":false,"medium_large":false,"large":false,"1536x1536":false,"2048x2048":false,"trp-custom-language-flag":false},"uagb_author_info":{"display_name":"nickel","author_link":"https:\/\/www.nickelcasting.com\/ko\/author\/nickel\/"},"uagb_comment_info":0,"uagb_excerpt":"Home \/ Nickel Alloys \/ Kovar Kovar\u00ae UNS K94610 | W.Nr. 1.3981 | ASTM F15 Kovar is a nominal 29% nickel, 17% cobalt, 54% iron controlled-expansion alloy. It is widely known for having a coefficient of thermal expansion that matches borosilicate (hard) glasses and alumina ceramics, making it the industry standard for reliable hermetic sealing.&hellip;","_links":{"self":[{"href":"https:\/\/www.nickelcasting.com\/ko\/wp-json\/wp\/v2\/pages\/2331","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.nickelcasting.com\/ko\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.nickelcasting.com\/ko\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.nickelcasting.com\/ko\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.nickelcasting.com\/ko\/wp-json\/wp\/v2\/comments?post=2331"}],"version-history":[{"count":14,"href":"https:\/\/www.nickelcasting.com\/ko\/wp-json\/wp\/v2\/pages\/2331\/revisions"}],"predecessor-version":[{"id":3428,"href":"https:\/\/www.nickelcasting.com\/ko\/wp-json\/wp\/v2\/pages\/2331\/revisions\/3428"}],"up":[{"embeddable":true,"href":"https:\/\/www.nickelcasting.com\/ko\/wp-json\/wp\/v2\/pages\/1831"}],"wp:attachment":[{"href":"https:\/\/www.nickelcasting.com\/ko\/wp-json\/wp\/v2\/media?parent=2331"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}