{"id":1753,"date":"2025-12-01T07:55:14","date_gmt":"2025-12-01T06:55:14","guid":{"rendered":"https:\/\/www.nickelcasting.com\/?p=1753"},"modified":"2026-01-30T03:07:49","modified_gmt":"2026-01-30T02:07:49","slug":"what-is-the-difference-between-625-and-725-alloy","status":"publish","type":"post","link":"https:\/\/www.nickelcasting.com\/ko\/what-is-the-difference-between-625-and-725-alloy\/","title":{"rendered":"625 \ud569\uae08\uacfc 725 \ud569\uae08\uc758 \ucc28\uc774\uc810\uc740 \ubb34\uc5c7\uc778\uac00\uc694?"},"content":{"rendered":"<p data-path-to-node=\"17\">\ub0b4\uc2dd\uc131\uacfc \uad00\ub828\ud558\uc5ec \uac70\uc758 \ub3d9\uc77c\ud55c \uc720\uc804 \uc554\ud638\ub97c \uacf5\uc720\ud558\uc9c0\ub9cc, \uae30\uacc4\uc801 \uc2a4\ud2b8\ub808\uc2a4\ub97c \ucc98\ub9ac\ud558\ub294 \ubc29\uc2dd\uc5d0\uc11c \ucc28\uc774\uac00 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n<p data-path-to-node=\"17\"><img fetchpriority=\"high\" decoding=\"async\" class=\"size-full wp-image-1754 aligncenter\" src=\"https:\/\/www.nickelcasting.com\/wp-content\/uploads\/2025\/12\/13.jpg\" alt=\"\" width=\"1200\" height=\"675\" srcset=\"https:\/\/www.nickelcasting.com\/wp-content\/uploads\/2025\/12\/13.jpg 1200w, https:\/\/www.nickelcasting.com\/wp-content\/uploads\/2025\/12\/13-300x169.jpg 300w, https:\/\/www.nickelcasting.com\/wp-content\/uploads\/2025\/12\/13-1024x576.jpg 1024w, https:\/\/www.nickelcasting.com\/wp-content\/uploads\/2025\/12\/13-768x432.jpg 768w, https:\/\/www.nickelcasting.com\/wp-content\/uploads\/2025\/12\/13-18x10.jpg 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/p>\n<h2>\ud654\ud559 \uc131\ubd84<\/h2>\n<p data-path-to-node=\"19\">\ucc28\uc774\uc810\uc744 \uc774\ud574\ud558\ub824\uba74 \uba3c\uc800 \ud654\ud559 \uc6d0\ub9ac\ub97c \uc0b4\ud3b4\ubd10\uc57c \ud569\ub2c8\ub2e4. \ud569\uae08 625\ub294 \ub2c8\uc624\ube00\uc774 \ud3ec\ud568\ub41c \ub2c8\ucf08-\ud06c\ub86c-\ubab0\ub9ac\ube0c\ub374 \ud569\uae08\uc785\ub2c8\ub2e4. \uc774 \uc870\ud569\uc740 \uad6c\uba4d\uacfc \ud2c8\uc0c8 \ubd80\uc2dd\uc5d0 \ub300\ud55c \ud0c1\uc6d4\ud55c \uc800\ud56d\ub825\uc744 \uc81c\uacf5\ud569\ub2c8\ub2e4.<\/p>\n<p data-path-to-node=\"20\"><b>\ud569\uae08 725(UNS N07725)<\/b> \ub294 \ubcf8\uc9c8\uc801\uc73c\ub85c \ud569\uae08 625\uc5d0 \ud2b9\uc815 \ubcc0\ud615\uc744 \uac00\ud55c \uac83\uc785\ub2c8\ub2e4. \uc57c\uae08\ud559\uc790\ub4e4\uc740 \ub0b4\uc2dd\uc131\uc774 \uc785\uc99d\ub41c 625\uc5d0 \uc18c\ub7c9\uc758 \uc815\ubc00\ud55c \uc591\uc758 <b>\ud2f0\ud0c0\ub284(Ti) \ubc0f \uc54c\ub8e8\ubbf8\ub284(Al)<\/b>.<\/p>\n<ul data-path-to-node=\"21\">\n<li>\n<p data-path-to-node=\"21,0,0\"><b>\ud569\uae08 625:<\/b> \uc8fc\ub85c \ub2c8\ucf08-\ud06c\ub86c \ub9e4\ud2b8\ub9ad\uc2a4\uc5d0\uc11c \ubab0\ub9ac\ube0c\ub374\uacfc \ub2c8\uc624\ube00\uc758 \uac15\ud654 \ud6a8\uacfc(\uace0\uccb4 \uc6a9\uc561 \uac15\ud654)\ub85c \uac15\ud654\ub429\ub2c8\ub2e4.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"21,1,0\"><b>\ud569\uae08 725:<\/b> \uc5f4\ucc98\ub9ac \uc911 \ubbf8\uc138\ud55c \uac10\ub9c8-\uc18c\uc218\uc0c1 \ubc0f \uac10\ub9c8-\uc774\uc911\uc18c\uc218\uc0c1\uc758 \uce68\uc804(\uce68\uc804 \uacbd\ud654)\uc73c\ub85c \uac15\ud654\ub429\ub2c8\ub2e4(\uce68\uc804 \uacbd\ud654).<\/p>\n<\/li>\n<\/ul>\n<h2>\ud575\uc2ec\uc801\uc778 \ucc28\uc774\uc810: \uc218\uc728 \uac15\ub3c4<\/h2>\n<p data-path-to-node=\"23\">\ub0b4\uc2dd\uc131\uc774 \ubc29\ud328\ub77c\uba74 \ud56d\ubcf5 \uac15\ub3c4\ub294 \uadfc\uc721\uc785\ub2c8\ub2e4. \uc5ec\uae30\uc5d0\uc11c <b>625 \ud569\uae08\uacfc 725 \ud569\uae08\uc758 \ucc28\uc774\uc810<\/b> \ub294 \ubd80\uc778\ud560 \uc218 \uc5c6\ub294 \uc0ac\uc2e4\uc774 \ub429\ub2c8\ub2e4.<\/p>\n<p data-path-to-node=\"24\">Alloy 625 is tough, but in its annealed state, its yield strength is typically around 60-70 ksi (414-483 MPa). To make it stronger, it must be &#8220;cold worked&#8221; (physically compressed or drawn), which limits the shapes and sizes you can produce.<\/p>\n<p data-path-to-node=\"25\">\ud569\uae08 725\ub294 \ud310\ub3c4\ub97c \ubc14\uafc9\ub2c8\ub2e4. \ud2f0\ud0c0\ub284\uacfc \uc54c\ub8e8\ubbf8\ub284\uc774 \ucca8\uac00\ub418\uc5b4 \uc788\uc5b4 \uc5f4\ucc98\ub9ac(\uc219\uc131)\ub97c \ud1b5\ud574 \ub0c9\uac04 \uac00\uacf5 \uc5c6\uc774\ub3c4 \ucd08\uace0\uac15\ub3c4\ub97c \uad6c\ud604\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. <b>\ud569\uae08 725\ub294 \uc77c\ubc18\uc801\uc73c\ub85c \uc5b4\ub2d0\ub9c1\ub41c \ud569\uae08 625\uc758 \uc57d 2\ubc30\uc5d0 \ub2ec\ud558\ub294 120ksi(827MPa)\ub97c \ucd08\uacfc\ud558\ub294 \ud56d\ubcf5 \uac15\ub3c4\ub97c \ub2ec\uc131\ud569\ub2c8\ub2e4.<\/b><\/p>\n<p data-path-to-node=\"26\">\ub530\ub77c\uc11c Alloy 725\ub294 \uace0\uac15\ub3c4\uac00 \ud544\uc694\ud558\uc9c0\ub9cc \ub108\ubb34 \ub450\uaebc\uc6cc \ud6a8\uacfc\uc801\uc73c\ub85c \ub0c9\uac04 \uac00\uacf5\ud560 \uc218 \uc5c6\ub294 \ud06c\uace0 \ubcf5\uc7a1\ud55c \uc139\uc158\uc5d0 \ud0c1\uc6d4\ud55c \uc120\ud0dd\uc785\ub2c8\ub2e4.<\/p>\n<h2>\ub0b4\uc2dd\uc131<\/h2>\n<p data-path-to-node=\"28\">Engineers often fear that increasing strength means sacrificing corrosion resistance. Fortunately, with these two alloys, that isn&#8217;t the case.<\/p>\n<p data-path-to-node=\"29\">\uae30\ubcf8 \ud654\ud559(\ub192\uc740 \ub2c8\ucf08\uacfc \ubab0\ub9ac\ube0c\ub374)\uc774 \uc77c\uad00\ub418\uac8c \uc720\uc9c0\ub418\uae30 \ub54c\ubb38\uc785\ub2c8\ub2e4, <b>\ud569\uae08 725\ub294 \ud569\uae08 625\uc640 \ubcf8\uc9c8\uc801\uc73c\ub85c \ub3d9\uc77c\ud55c \ub0b4\uc2dd\uc131\uc744 \uc720\uc9c0\ud569\ub2c8\ub2e4.<\/b> \ub450 \ud569\uae08 \ubaa8\ub450 \ub6f0\uc5b4\ub09c \ub0b4\uc131\uc744 \uc81c\uacf5\ud569\ub2c8\ub2e4:<\/p>\n<ul data-path-to-node=\"30\">\n<li>\n<p data-path-to-node=\"30,0,0\">\ubc14\ub2f7\ubb3c \ubc0f \ud574\uc591 \ud658\uacbd.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"30,1,0\">\uad6c\uba4d \ubc0f \ud2c8\uc0c8 \ubd80\uc2dd.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"30,2,0\">\ud669\ud654\ubb3c \uc751\ub825 \uade0\uc5f4(SSC).<\/p>\n<\/li>\n<\/ul>\n<p data-path-to-node=\"31\">\ud569\uae08 725\ub294 \ud569\uae08 718\uc758 \uac15\ub3c4\uc5d0 625\uc758 \ub0b4\uc2dd\uc131\uc744 \ub354\ud55c \ub3c5\ud2b9\ud55c \uc870\ud569\uc73c\ub85c \ub3c5\ud2b9\ud55c \uce74\ud14c\uace0\ub9ac\uc5d0 \uc18d\ud569\ub2c8\ub2e4.<\/p>\n<h2>\uc560\ud50c\ub9ac\ucf00\uc774\uc158 \uc2dc\ub098\ub9ac\uc624: \uc5b8\uc81c \uc0ac\uc6a9\ud574\uc57c \ud560\uae4c\uc694?<\/h2>\n<p data-path-to-node=\"33\">\uc774 \uc911 \ud558\ub098\ub97c \uc120\ud0dd\ud558\ub294 \uac83\uc740 \uc77c\ubc18\uc801\uc73c\ub85c \uc560\ud50c\ub9ac\ucf00\uc774\uc158\uc758 \uae30\uacc4\uc801 \ubd80\ud558\uc5d0 \ub530\ub77c \uacb0\uc815\ub429\ub2c8\ub2e4.<\/p>\n<p data-path-to-node=\"34\"><b>\ud569\uae08 625\ub294 \ub2e4\uc74c\uacfc \uac19\uc740 \uacbd\uc6b0\uc5d0 \uc120\ud0dd\ud569\ub2c8\ub2e4:<\/b><\/p>\n<ul data-path-to-node=\"35\">\n<li>\n<p data-path-to-node=\"35,0,0\">\ub6f0\uc5b4\ub09c \uac00\uacf5\uc131\uacfc \uc6a9\uc811\uc131\uc774 \ud544\uc694\ud569\ub2c8\ub2e4.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"35,1,0\">\uc774 \uc560\ud50c\ub9ac\ucf00\uc774\uc158\uc5d0\ub294 \ubc30\uae30 \ub355\ud2b8\uc640 \uac19\uc740 \ud074\ub798\ub529(\uc624\ubc84\ub808\uc774) \ub610\ub294 \ud310\uae08 \ubd80\ud488\uc774 \ud3ec\ud568\ub429\ub2c8\ub2e4.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"35,2,0\">\uadf9\ud55c\uc758 \ud56d\ubcf5 \uac15\ub3c4\ub294 \uc8fc\uc694 \uc694\uad6c \uc0ac\ud56d\uc774 \uc544\ub2d9\ub2c8\ub2e4.<\/p>\n<\/li>\n<\/ul>\n<p data-path-to-node=\"36\"><b>\ud569\uae08 725\ub294 \ub2e4\uc74c\uacfc \uac19\uc740 \uacbd\uc6b0\uc5d0 \uc120\ud0dd\ud569\ub2c8\ub2e4:<\/b><\/p>\n<ul data-path-to-node=\"37\">\n<li>\n<p data-path-to-node=\"37,0,0\">You are designing <a href=\"https:\/\/www.nickelcasting.com\/pt\/product-forms\/fasteners\/\">\ud328\uc2a4\ub108<\/a>, hangers, or landing nipples for Sour Gas service (NACE MR0175).<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"37,1,0\">\ud574\uc591 \ud658\uacbd\uc758 \uc5c4\uccad\ub09c \uc778\uc7a5 \uc751\ub825\uc744 \uacac\ub51c \uc218 \uc788\ub294 \uc18c\uc7ac\uac00 \ud544\uc694\ud569\ub2c8\ub2e4.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"37,2,0\">\uad6c\uc131 \uc694\uc18c\ub294 \ub0c9\uac04 \uac00\uacf5\uc774 \ubd88\uac00\ub2a5\ud55c \ub300\ud615 \uc139\uc158 \ubc14 \ub610\ub294 \ub2e8\uc870\ud488\uc785\ub2c8\ub2e4.<\/p>\n<\/li>\n<\/ul>\n<p data-path-to-node=\"39\"><img decoding=\"async\" class=\"size-full wp-image-1416 aligncenter\" src=\"https:\/\/www.nickelcasting.com\/wp-content\/uploads\/2025\/11\/suoluetu.jpg\" alt=\"\" width=\"1200\" height=\"675\" srcset=\"https:\/\/www.nickelcasting.com\/wp-content\/uploads\/2025\/11\/suoluetu.jpg 1200w, https:\/\/www.nickelcasting.com\/wp-content\/uploads\/2025\/11\/suoluetu-300x169.jpg 300w, https:\/\/www.nickelcasting.com\/wp-content\/uploads\/2025\/11\/suoluetu-1024x576.jpg 1024w, https:\/\/www.nickelcasting.com\/wp-content\/uploads\/2025\/11\/suoluetu-768x432.jpg 768w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/p>\n<h3>\uc790\uc8fc \ubb3b\ub294 \uc9c8\ubb38(FAQ)<\/h3>\n<p data-path-to-node=\"42\"><b>Q1: \ud569\uae08 725\ub294 \ud569\uae08 625\ub9cc\ud07c \uc27d\uac8c \uc6a9\uc811\ud560 \uc218 \uc788\uc2b5\ub2c8\uae4c?<\/b><\/p>\n<p data-path-to-node=\"42\">\ub450 \ud569\uae08 \ubaa8\ub450 \uc6a9\uc811\uc774 \uac00\ub2a5\ud558\uc9c0\ub9cc, \uc77c\ubc18\uc801\uc73c\ub85c \ud569\uae08 625\ub294 \uc6a9\uc811\uc131\uc774 \uc6b0\uc218\ud55c \uac83\uc73c\ub85c \uac04\uc8fc\ub418\uc5b4 \ud544\ub7ec \uae08\uc18d \uc790\uccb4\ub85c \uc0ac\uc6a9\ub418\ub294 \uacbd\uc6b0\uac00 \ub9ce\uc2b5\ub2c8\ub2e4. \ud569\uae08 725\ub294 \uc6a9\uc811\uc774 \uac00\ub2a5\ud558\uc9c0\ub9cc \uc2dc\ud6a8 \uacbd\ud654 \ud569\uae08\uc774\uae30 \ub54c\ubb38\uc5d0 \uc77c\ubc18\uc801\uc73c\ub85c \uc5f4 \uc601\ud5a5\uc744 \ubc1b\ub294 \uc601\uc5ed\uc5d0\uc11c \uace0\uac15\ub3c4 \ud2b9\uc131\uc744 \ud68c\ubcf5\ud558\uae30 \uc704\ud574 \uc6a9\uc811 \ud6c4 \uc5f4\ucc98\ub9ac\uac00 \ud544\uc694\ud569\ub2c8\ub2e4.<\/p>\n<p data-path-to-node=\"43\"><b>Q2: Alloy 725\ub294 \uc790\uc131\uc774 \uc788\ub098\uc694?<\/b><\/p>\n<p data-path-to-node=\"43\">\ud569\uae08 625\uc640 \ub9c8\ucc2c\uac00\uc9c0\ub85c \ud569\uae08 725\ub294 \ub2c8\ucf08 \uae30\ubc18 \ucd08\ud569\uae08\uc774\uba70 \ubaa8\ub4e0 \uc870\uac74\uc5d0\uc11c \ube44\uc790\uc131\uc785\ub2c8\ub2e4. \ub530\ub77c\uc11c \ub450 \ud569\uae08 \ubaa8\ub450 \ubbfc\uac10\ud55c \uc804\uc790 \ud558\uc6b0\uc9d5\uc774\ub098 \uc7a0\uc218\ud568 \ubd80\ud488\uacfc \uac19\uc774 \uc790\uae30 \ud22c\uacfc\uc131\uc744 \ucd5c\uc18c\ud654\ud574\uc57c \ud558\ub294 \uc560\ud50c\ub9ac\ucf00\uc774\uc158\uc5d0 \uc801\ud569\ud569\ub2c8\ub2e4.<\/p>\n<p data-path-to-node=\"44\"><b>Q3: Alloy 725\uac00 625\ubcf4\ub2e4 \ube44\uc2fc \uc774\uc720\ub294 \ubb34\uc5c7\uc778\uac00\uc694?<\/b><\/p>\n<p data-path-to-node=\"44\">\ube44\uc6a9 \ucc28\uc774\ub294 \uacf5\uc815\uc758 \ubcf5\uc7a1\uc131\uc5d0\uc11c \ube44\ub86f\ub429\ub2c8\ub2e4. \uc6d0\uc790\uc7ac \ube44\uc6a9\uc740 \ube44\uc2b7\ud558\uc9c0\ub9cc \ud569\uae08 725\ub294 \uae30\uacc4\uc801 \ud2b9\uc131\uc744 \uc5bb\uae30 \uc704\ud574 \uc815\ubc00\ud55c \uc9c4\uacf5 \uc6a9\uc735\uacfc \uc7a5\uc2dc\uac04\uc758 \uc5f4\ucc98\ub9ac \uc0ac\uc774\ud074(\uc6a9\uc561 \uc5b4\ub2d0\ub9c1\uacfc 2\ub2e8\uacc4 \uc5d0\uc774\uc9d5)\uc774 \ud544\uc694\ud569\ub2c8\ub2e4. \ub610\ud55c \ud569\uae08 625\ub294 \ud6e8\uc52c \ub354 \ub9ce\uc740 \uc591\uc73c\ub85c \uc0dd\uc0b0\ub418\uc5b4 \uaddc\ubaa8\uc758 \uacbd\uc81c\ub97c \uc81c\uacf5\ud569\ub2c8\ub2e4.<\/p>","protected":false},"excerpt":{"rendered":"<p>While they share a nearly identical genetic code regarding corrosion resistance, the distinction lies entirely in how they handle mechanical stress. Chemical Composition To understand the difference, we must first look at the chemistry. Alloy 625 is a nickel-chromium-molybdenum alloy containing niobium. This combination delivers outstanding resistance to pitting and crevice corrosion. Alloy 725 (UNS [&hellip;]<\/p>","protected":false},"author":1,"featured_media":1754,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_uag_custom_page_level_css":"","site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","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":"","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 center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[3],"tags":[],"class_list":["post-1753","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"spectra_custom_meta":{"_edit_lock":["1769738869:1"],"_edit_last":["1"],"_thumbnail_id":["1754"],"_wp_page_template":["default"],"site-sidebar-layout":["default"],"ast-site-content-layout":["default"],"site-content-style":["default"],"site-sidebar-style":["default"],"theme-transparent-header-meta":["default"],"_yoast_wpseo_primary_category":["3"],"_yoast_wpseo_focuskw":["What is the difference between 625 and 725 alloy"],"_yoast_wpseo_title":["%%title%% %%page%% %%sep%% 28Nickel"],"_yoast_wpseo_metadesc":["What is the difference between 625 and 725 alloy? While chemically similar, Alloy 725 offers significantly higher strength through precipitation hardening."],"_yoast_wpseo_linkdex":["70"],"_yoast_wpseo_content_score":["90"],"_yoast_wpseo_estimated-reading-time-minutes":["4"],"rank_math_primary_category":["3"],"rank_math_title":["%title% %page% %sep% 28Nickel"],"rank_math_description":["What is the difference between 625 and 725 alloy? 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