{"id":2298,"date":"2026-01-09T12:29:04","date_gmt":"2026-01-09T11:29:04","guid":{"rendered":"https:\/\/www.nickelcasting.com\/?page_id=2298"},"modified":"2026-03-28T15:28:17","modified_gmt":"2026-03-28T14:28:17","slug":"ligas-metalicas-de-invar","status":"publish","type":"page","link":"https:\/\/www.nickelcasting.com\/pt\/ligas-de-niquel\/ligas-metalicas-de-invar\/","title":{"rendered":"Ligas met\u00e1licas Invar"},"content":{"rendered":"
\n\t\t\t\t
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\n\t\t\t\t
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\n\n
\n In\u00edcio<\/a> \n \/<\/span> \n Ligas de n\u00edquel<\/a>\n \/<\/span> \n Invar \/ Ligas de Expans\u00e3o Controlada\n <\/div>\n\n
\n

Invar\u00ae \/ Ligas de Expans\u00e3o Controlada<\/h1>\n

\n Uma fam\u00edlia especializada de ligas de n\u00edquel-ferro concebida para ter um coeficiente de expans\u00e3o t\u00e9rmica (CTE) excecionalmente baixo ou controlado. Essencial para aplica\u00e7\u00f5es de precis\u00e3o em que a estabilidade dimensional \u00e9 cr\u00edtica.\n <\/p>\n <\/div>\n\n

Graus de Invar dispon\u00edveis<\/div>\n \n
\n \n
\n
\n \"Liga\n <\/div>\n
\n

Invar 36<\/h3>\n

\n Uma liga de n\u00edquel-ferro 36% com o mais baixo coeficiente de expans\u00e3o t\u00e9rmica de qualquer metal dispon\u00edvel no mercado (cerca de 1\/10 do a\u00e7o-carbono) desde temperaturas criog\u00e9nicas at\u00e9 400\u00b0F.\n <\/p>\n

\n CTE mais baixo<\/span>\n Ferramentas aeroespaciais<\/span>\n Tubagem criog\u00e9nica<\/span>\n <\/div>\n Ver detalhes do Invar 36<\/a>\n <\/div>\n <\/div>\n\n
\n
\n \"Liga\n <\/div>\n
\n

Invar 42<\/h3>\n

\n Uma liga de n\u00edquel-ferro 42% concebida com uma taxa constante de expans\u00e3o t\u00e9rmica que corresponde a pastilhas de sil\u00edcio, vidro e cer\u00e2mica de alumina. Essencial para embalagens electr\u00f3nicas e selagem herm\u00e9tica.\n <\/p>\n

\n Corresponde ao sil\u00edcio<\/span>\n Quadros electr\u00f3nicos<\/span>\n Veda\u00e7\u00e3o de vidro<\/span>\n <\/div>\n Ver detalhes do Invar 42<\/a>\n <\/div>\n <\/div>\n\n <\/div>\n\n
\n

Porque \u00e9 que a expans\u00e3o controlada \u00e9 importante?<\/h3>\n

\n A maioria dos metais expande-se significativamente quando aquecidos. Nos instrumentos de precis\u00e3o, esta expans\u00e3o causa desalinhamento. Na eletr\u00f3nica, o desfasamento entre a estrutura met\u00e1lica de um chip e o chip de sil\u00edcio provoca fissuras.\n <\/p>\n

\n Ligas de Invar<\/strong> resolver isto. Invar 36<\/a><\/strong> essencialmente n\u00e3o se expande de todo \u00e0 temperatura ambiente. Invar 42<\/a><\/strong> expande-se a um ritmo espec\u00edfico e controlado para se mover exatamente em sincronia com os componentes electr\u00f3nicos.\n <\/p>\n <\/div>\n\n

Compara\u00e7\u00e3o de graus: Expans\u00e3o t\u00e9rmica<\/div>\n
\n \n \n \n \n \n \n
Grau da liga<\/th>\n Teor de n\u00edquel<\/th>\n Carater\u00edstica de expans\u00e3o<\/th>\n Aplica\u00e7\u00e3o prim\u00e1ria<\/th>\n <\/tr>\n <\/thead>\n
Invar 36<\/strong><\/td>\n 36%<\/td>\n Quase zero<\/strong> expans\u00e3o at\u00e9 400\u00b0F (200\u00b0C).<\/td>\n Moldes compostos, posicionamento a laser, tubagem de GNL.<\/td>\n <\/tr>\n
Invar 42<\/strong><\/td>\n 42%<\/td>\n Controlado<\/strong> expans\u00e3o para corresponder ao Sil\u00edcio\/Cer\u00e2mica.<\/td>\n Arma\u00e7\u00f5es de chumbo, veda\u00e7\u00f5es herm\u00e9ticas vidro-metal.<\/td>\n <\/tr>\n <\/tbody>\n <\/table>\n <\/div>\n\n
Dispon\u00edvel Formul\u00e1rios de produtos<\/a><\/div>\n

\n Uma vez que a estabilidade dimensional \u00e9 cr\u00edtica em ind\u00fastrias muito diferentes - desde moldes compostos aeroespaciais maci\u00e7os a chips electr\u00f3nicos microsc\u00f3picos - fornecemos ligas Invar numa gama altamente especializada de formas de produtos:\n <\/p>\n\n

\n \n
\ud83d\udd32<\/div>\n
\n

Placas e chapas para ferramentas<\/h4>\n

A chapa Invar 36 pesada \u00e9 o padr\u00e3o da ind\u00fastria para a maquina\u00e7\u00e3o de moldes de coloca\u00e7\u00e3o maci\u00e7a utilizados no fabrico de comp\u00f3sitos de fibra de carbono para a ind\u00fastria aeroespacial.<\/p>\n <\/div>\n <\/a>\n\n \n

\ud83d\ude87<\/div>\n
\n

Tubos criog\u00e9nicos<\/h4>\n

Tubagem sem soldadura utilizada extensivamente no transporte e armazenamento de GNL (G\u00e1s Natural Liquefeito), onde o frio extremo faz com que o a\u00e7o normal se contraia e falhe.<\/p>\n <\/div>\n <\/a>\n\n \n

\ud83e\uddf5<\/div>\n
\n

Fita e fio de precis\u00e3o<\/h4>\n

Fita e fio ultra-finos de Invar 42 concebidos para a estampagem de estruturas de chumbo electr\u00f3nicas, term\u00f3statos bimet\u00e1licos e veda\u00e7\u00f5es herm\u00e9ticas de vidro-metal.<\/p>\n <\/div>\n <\/a>\n\n \n

\ud83d\udccf<\/div>\n
\n

Bar e var\u00e3o<\/h4>\n

Fornecimento de barras redondas para maquinagem CNC de componentes de precis\u00e3o de caixas de laser, bases de instrumentos \u00f3pticos e medidores de refer\u00eancia dimensional.<\/p>\n <\/div>\n <\/a>\n\n \n

\ud83e\ude88<\/div>\n
\n

Acess\u00f3rios para tubos<\/h4>\n

Cotovelos, t\u00eas e redutores para completar redes de tubagens dimensionalmente est\u00e1veis em aplica\u00e7\u00f5es criog\u00e9nicas e qu\u00edmicas especializadas.<\/p>\n <\/div>\n <\/a>\n\n \n

\u2b55<\/div>\n
\n

Flanges<\/h4>\n

Pesco\u00e7o de soldadura de baixa expans\u00e3o e flanges cegas concebidas para manter uma veda\u00e7\u00e3o segura e \u00e0 prova de fugas durante quedas de temperatura extremas em sistemas de GNL.<\/p>\n <\/div>\n <\/a>\n <\/div>\n

Ind\u00fastrias-chave<\/div>\n
\n
\n \ud83d\udce1<\/span>\n

Eletr\u00f3nica<\/h4>\n

Quadros de liga\u00e7\u00e3o de circuitos integrados e embalagem de semicondutores.<\/p>\n <\/div>\n

\n \u2708\ufe0f<\/span>\n

Comp\u00f3sitos aeroespaciais<\/h4>\n

Moldes para pe\u00e7as em fibra de carbono (Invar 36 corresponde ao CTE da fibra de carbono).<\/p>\n <\/div>\n

\n \u2744\ufe0f<\/span>\n

Criogenia e GNL<\/h4>\n

Tubagem para g\u00e1s natural liquefeito (-162\u00b0C) que requer estabilidade.<\/p>\n <\/div>\n <\/div>\n\n

\n

Precisa de material de liga de precis\u00e3o?<\/h2>\n

Temos em stock Invar 36 e 42 em chapa, folha e barra redonda. Servi\u00e7os de corte \u00e0 medida dispon\u00edveis para placas de ferramentas.<\/p>\n Pedir um or\u00e7amento<\/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":"

Home \/ Nickel Alloys \/ Invar \/ Controlled Expansion Alloys Invar\u00ae \/ Controlled Expansion Alloys A specialized family of Nickel-Iron alloys engineered to have an exceptionally low or controlled coefficient of thermal expansion (CTE). Essential for precision applications where dimensional stability is critical. Available Invar Grades Invar 36 A 36% nickel-iron alloy with the lowest […]<\/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 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":""},"class_list":["post-2298","page","type-page","status-publish","hentry"],"spectra_custom_meta":{"_edit_lock":["1774708116:1"],"_edit_last":["1"],"rank_math_internal_links_processed":["1"],"rank_math_seo_score":["69"],"rank_math_description":["Invar metal alloys with low thermal expansion, ideal for precision instruments and aerospace applications."],"rank_math_focus_keyword":["invar metal alloys"],"_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\":\"1bba4c3\",\"elType\":\"container\",\"settings\":{\"flex_direction\":\"column\",\"display_condition_list\":[{\"display_condition_login_status\":\"subscriber\",\"_id\":\"f078fbf\"}]},\"elements\":[{\"id\":\"a409109\",\"elType\":\"widget\",\"settings\":{\"html\":\"\\n\\n

\\n\\n
\\n Home<\\\/a> \\n \\\/<\\\/span> \\n Nickel Alloys<\\\/a>\\n \\\/<\\\/span> \\n Invar \\\/ Controlled Expansion Alloys\\n <\\\/div>\\n\\n
\\n

Invar\\u00ae \\\/ Controlled Expansion Alloys<\\\/h1>\\n

\\n A specialized family of Nickel-Iron alloys engineered to have an exceptionally low or controlled coefficient of thermal expansion (CTE). Essential for precision applications where dimensional stability is critical.\\n <\\\/p>\\n <\\\/div>\\n\\n

Available Invar Grades<\\\/div>\\n \\n
\\n \\n
\\n
\\n \\\"Invar\\n <\\\/div>\\n
\\n

Invar 36<\\\/h3>\\n

\\n A 36% nickel-iron alloy with the lowest coefficient of thermal expansion of any commercially available metal (approx. 1\\\/10th that of carbon steel) from cryogenic temperatures up to 400\\u00b0F.\\n <\\\/p>\\n

\\n Lowest CTE<\\\/span>\\n Aerospace Tooling<\\\/span>\\n Cryogenic Piping<\\\/span>\\n <\\\/div>\\n View Invar 36 Details<\\\/a>\\n <\\\/div>\\n <\\\/div>\\n\\n
\\n
\\n \\\"Invar\\n <\\\/div>\\n
\\n

Invar 42<\\\/h3>\\n

\\n A 42% nickel-iron alloy designed with a constant rate of thermal expansion that matches silicon chips, glass, and alumina ceramics. Critical for electronic packaging and hermetic sealing.\\n <\\\/p>\\n

\\n Matches Silicon<\\\/span>\\n Electronic Frames<\\\/span>\\n Glass Sealing<\\\/span>\\n <\\\/div>\\n View Invar 42 Details<\\\/a>\\n <\\\/div>\\n <\\\/div>\\n\\n <\\\/div>\\n\\n
\\n

Why Controlled Expansion Matters?<\\\/h3>\\n

\\n Most metals expand significantly when heated. In precision instruments, this expansion causes misalignment. In electronics, the mismatch between a metal chip frame and the silicon chip causes cracking.\\n <\\\/p>\\n

\\n Invar Alloys<\\\/strong> solve this. Invar 36<\\\/strong> essentially does not expand at all near room temperature. Invar 42<\\\/strong> expands at a specific, controlled rate to move exactly in sync with electronic components.\\n <\\\/p>\\n <\\\/div>\\n\\n

Grade Comparison: Thermal Expansion<\\\/div>\\n
\\n \\n \\n \\n \\n \\n \\n
Alloy Grade<\\\/th>\\n Nickel Content<\\\/th>\\n Expansion Characteristic<\\\/th>\\n Primary Application<\\\/th>\\n <\\\/tr>\\n <\\\/thead>\\n
Invar 36<\\\/strong><\\\/td>\\n 36%<\\\/td>\\n Near Zero<\\\/strong> expansion up to 400\\u00b0F (200\\u00b0C).<\\\/td>\\n Composite molds, laser positioning, LNG piping.<\\\/td>\\n <\\\/tr>\\n
Invar 42<\\\/strong><\\\/td>\\n 42%<\\\/td>\\n Controlled<\\\/strong> expansion to match Silicon\\\/Ceramic.<\\\/td>\\n Lead frames, hermetic glass-to-metal seals.<\\\/td>\\n <\\\/tr>\\n <\\\/tbody>\\n <\\\/table>\\n <\\\/div>\\n\\n
Available Product Forms<\\\/div>\\n

\\n Because dimensional stability is critical across vastly different industries\\u2014from massive aerospace composite molds to microscopic electronic chips\\u2014we supply Invar alloys in a highly specialized range of product forms:\\n <\\\/p>\\n\\n

\\n \\n
\\ud83d\\udd32<\\\/div>\\n
\\n

Tooling Plate & Sheet<\\\/h4>\\n

Heavy Invar 36 plate is the industry standard for machining massive lay-up molds used in manufacturing aerospace carbon fiber composites.<\\\/p>\\n <\\\/div>\\n <\\\/a>\\n\\n \\n

\\ud83d\\ude87<\\\/div>\\n
\\n

Cryogenic Pipe & Tube<\\\/h4>\\n

Seamless piping used extensively in LNG (Liquefied Natural Gas) transport and storage, where extreme cold causes standard steel to contract and fail.<\\\/p>\\n <\\\/div>\\n <\\\/a>\\n\\n \\n

\\ud83e\\uddf5<\\\/div>\\n
\\n

Precision Strip & Wire<\\\/h4>\\n

Ultra-thin Invar 42 strip and wire engineered for stamping electronic lead frames, bimetallic thermostats, and glass-to-metal hermetic seals.<\\\/p>\\n <\\\/div>\\n <\\\/a>\\n\\n \\n

\\ud83d\\udccf<\\\/div>\\n
\\n

Bar & Rod<\\\/h4>\\n

Round bar stock supplied for CNC machining precision laser housing components, optical instrument bases, and dimensional reference gauges.<\\\/p>\\n <\\\/div>\\n <\\\/a>\\n\\n \\n

\\ud83e\\ude88<\\\/div>\\n
\\n

Pipe Fittings<\\\/h4>\\n

Elbows, tees, and reducers to complete dimensionally stable piping networks in cryogenic and specialized chemical applications.<\\\/p>\\n <\\\/div>\\n <\\\/a>\\n\\n \\n

\\u2b55<\\\/div>\\n
\\n

Flanges<\\\/h4>\\n

Low-expansion weld neck and blind flanges designed to maintain a secure, leak-proof seal during extreme temperature drops in LNG systems.<\\\/p>\\n <\\\/div>\\n <\\\/a>\\n <\\\/div>\\n

Key Industries<\\\/div>\\n
\\n
\\n \\ud83d\\udce1<\\\/span>\\n

Electronics<\\\/h4>\\n

Integrated circuit lead frames and semiconductor packaging.<\\\/p>\\n <\\\/div>\\n

\\n \\u2708\\ufe0f<\\\/span>\\n

Aerospace Composites<\\\/h4>\\n

Lay-up molds for carbon fiber parts (Invar 36 matches carbon fiber CTE).<\\\/p>\\n <\\\/div>\\n

\\n \\u2744\\ufe0f<\\\/span>\\n

Cryogenics & LNG<\\\/h4>\\n

Piping for Liquefied Natural Gas (-162\\u00b0C) requiring stability.<\\\/p>\\n <\\\/div>\\n <\\\/div>\\n\\n

\\n

Need Precision Alloy Material?<\\\/h2>\\n

We stock Invar 36 and 42 in plate, sheet, and round bar. Cut-to-size services available for tooling plate.<\\\/p>\\n Request a Quote<\\\/a>\\n <\\\/div>\\n\\n<\\\/div>\",\"display_condition_list\":[{\"display_condition_login_status\":\"subscriber\",\"_id\":\"f84c8e8\"}]},\"elements\":[],\"widgetType\":\"html\"}],\"isInner\":false}]"],"rank_math_og_content_image":["a:2:{s:5:\"check\";s:32:\"ccff42089d4cac012e51f9338cc93e4b\";s:6:\"images\";a:1:{i:0;i:2301;}}"],"ilj_blacklistdefinition":["a:0:{}"],"ilj_linkdefinition":["a:1:{i:0;s:18:\"Invar Metal Alloys\";}"],"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) !important}@media (max-width: 976px){.uag-blocks-common-selector{z-index:var(--z-index-tablet) !important}}@media (max-width: 767px){.uag-blocks-common-selector{z-index:var(--z-index-mobile) !important}}\n\";s:2:\"js\";s:0:\"\";s:18:\"current_block_list\";a:8:{i:0;s:11:\"core\/search\";i:1;s:10:\"core\/group\";i:2;s:12:\"core\/heading\";i:3;s:17:\"core\/latest-posts\";i:4;s:20:\"core\/latest-comments\";i:5;s:13:\"core\/archives\";i:6;s:15:\"core\/categories\";i:7;s:10:\"core\/image\";}s:8:\"uag_flag\";b:0;s:11:\"uag_version\";s:10:\"1776419131\";s:6:\"gfonts\";a:0:{}s:10:\"gfonts_url\";s:0:\"\";s:12:\"gfonts_files\";a:0:{}s:14:\"uag_faq_layout\";b:0;}"],"_uag_css_file_name":["uag-css-2298.css"],"_elementor_page_assets":["a:1:{s:7:\"scripts\";a:1:{i:0;s:18:\"elementor-frontend\";}}"],"_elementor_css":["a:6:{s:4:\"time\";i:1776543259;s:5:\"fonts\";a:0:{}s:5:\"icons\";a:0:{}s:20:\"dynamic_elements_ids\";a:0:{}s:6:\"status\";s:4:\"file\";i:0;s:0:\"\";}"],"_elementor_element_cache":["{\"timeout\":1776633259,\"value\":{\"content\":\"

\\n\\t\\t\\t\\t\\t
\\n\\t\\t\\t\\t
\\n\\t\\t\\t\\t
\\n\\t\\t\\t\\t\\t\\n\\n
\\n\\n
\\n Home<\\\/a> \\n \\\/<\\\/span> \\n Nickel Alloys<\\\/a>\\n \\\/<\\\/span> \\n Invar \\\/ Controlled Expansion Alloys\\n <\\\/div>\\n\\n
\\n

Invar\\u00ae \\\/ Controlled Expansion Alloys<\\\/h1>\\n

\\n A specialized family of Nickel-Iron alloys engineered to have an exceptionally low or controlled coefficient of thermal expansion (CTE). Essential for precision applications where dimensional stability is critical.\\n <\\\/p>\\n <\\\/div>\\n\\n

Available Invar Grades<\\\/div>\\n \\n
\\n \\n
\\n
\\n \\\"Invar\\n <\\\/div>\\n
\\n

Invar 36<\\\/h3>\\n

\\n A 36% nickel-iron alloy with the lowest coefficient of thermal expansion of any commercially available metal (approx. 1\\\/10th that of carbon steel) from cryogenic temperatures up to 400\\u00b0F.\\n <\\\/p>\\n

\\n Lowest CTE<\\\/span>\\n Aerospace Tooling<\\\/span>\\n Cryogenic Piping<\\\/span>\\n <\\\/div>\\n View Invar 36 Details<\\\/a>\\n <\\\/div>\\n <\\\/div>\\n\\n
\\n
\\n \\\"Invar\\n <\\\/div>\\n
\\n

Invar 42<\\\/h3>\\n

\\n A 42% nickel-iron alloy designed with a constant rate of thermal expansion that matches silicon chips, glass, and alumina ceramics. Critical for electronic packaging and hermetic sealing.\\n <\\\/p>\\n

\\n Matches Silicon<\\\/span>\\n Electronic Frames<\\\/span>\\n Glass Sealing<\\\/span>\\n <\\\/div>\\n View Invar 42 Details<\\\/a>\\n <\\\/div>\\n <\\\/div>\\n\\n <\\\/div>\\n\\n
\\n

Why Controlled Expansion Matters?<\\\/h3>\\n

\\n Most metals expand significantly when heated. In precision instruments, this expansion causes misalignment. In electronics, the mismatch between a metal chip frame and the silicon chip causes cracking.\\n <\\\/p>\\n

\\n Invar Alloys<\\\/strong> solve this. Invar 36<\\\/strong> essentially does not expand at all near room temperature. Invar 42<\\\/strong> expands at a specific, controlled rate to move exactly in sync with electronic components.\\n <\\\/p>\\n <\\\/div>\\n\\n

Grade Comparison: Thermal Expansion<\\\/div>\\n
\\n \\n \\n \\n \\n \\n \\n
Alloy Grade<\\\/th>\\n Nickel Content<\\\/th>\\n Expansion Characteristic<\\\/th>\\n Primary Application<\\\/th>\\n <\\\/tr>\\n <\\\/thead>\\n
Invar 36<\\\/strong><\\\/td>\\n 36%<\\\/td>\\n Near Zero<\\\/strong> expansion up to 400\\u00b0F (200\\u00b0C).<\\\/td>\\n Composite molds, laser positioning, LNG piping.<\\\/td>\\n <\\\/tr>\\n
Invar 42<\\\/strong><\\\/td>\\n 42%<\\\/td>\\n Controlled<\\\/strong> expansion to match Silicon\\\/Ceramic.<\\\/td>\\n Lead frames, hermetic glass-to-metal seals.<\\\/td>\\n <\\\/tr>\\n <\\\/tbody>\\n <\\\/table>\\n <\\\/div>\\n\\n
Available Product Forms<\\\/div>\\n

\\n Because dimensional stability is critical across vastly different industries\\u2014from massive aerospace composite molds to microscopic electronic chips\\u2014we supply Invar alloys in a highly specialized range of product forms:\\n <\\\/p>\\n\\n

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Tooling Plate & Sheet<\\\/h4>\\n

Heavy Invar 36 plate is the industry standard for machining massive lay-up molds used in manufacturing aerospace carbon fiber composites.<\\\/p>\\n <\\\/div>\\n <\\\/a>\\n\\n \\n

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Cryogenic Pipe & Tube<\\\/h4>\\n

Seamless piping used extensively in LNG (Liquefied Natural Gas) transport and storage, where extreme cold causes standard steel to contract and fail.<\\\/p>\\n <\\\/div>\\n <\\\/a>\\n\\n \\n

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Precision Strip & Wire<\\\/h4>\\n

Ultra-thin Invar 42 strip and wire engineered for stamping electronic lead frames, bimetallic thermostats, and glass-to-metal hermetic seals.<\\\/p>\\n <\\\/div>\\n <\\\/a>\\n\\n \\n

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Bar & Rod<\\\/h4>\\n

Round bar stock supplied for CNC machining precision laser housing components, optical instrument bases, and dimensional reference gauges.<\\\/p>\\n <\\\/div>\\n <\\\/a>\\n\\n \\n

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Pipe Fittings<\\\/h4>\\n

Elbows, tees, and reducers to complete dimensionally stable piping networks in cryogenic and specialized chemical applications.<\\\/p>\\n <\\\/div>\\n <\\\/a>\\n\\n \\n

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Flanges<\\\/h4>\\n

Low-expansion weld neck and blind flanges designed to maintain a secure, leak-proof seal during extreme temperature drops in LNG systems.<\\\/p>\\n <\\\/div>\\n <\\\/a>\\n <\\\/div>\\n

Key Industries<\\\/div>\\n
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Electronics<\\\/h4>\\n

Integrated circuit lead frames and semiconductor packaging.<\\\/p>\\n <\\\/div>\\n

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Aerospace Composites<\\\/h4>\\n

Lay-up molds for carbon fiber parts (Invar 36 matches carbon fiber CTE).<\\\/p>\\n <\\\/div>\\n

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Cryogenics & LNG<\\\/h4>\\n

Piping for Liquefied Natural Gas (-162\\u00b0C) requiring stability.<\\\/p>\\n <\\\/div>\\n <\\\/div>\\n\\n

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Need Precision Alloy Material?<\\\/h2>\\n

We stock Invar 36 and 42 in plate, sheet, and round bar. Cut-to-size services available for tooling plate.<\\\/p>\\n Request a 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\/pt\/author\/nickel\/"},"uagb_comment_info":0,"uagb_excerpt":"Home \/ Nickel Alloys \/ Invar \/ Controlled Expansion Alloys Invar\u00ae \/ Controlled Expansion Alloys A specialized family of Nickel-Iron alloys engineered to have an exceptionally low or controlled coefficient of thermal expansion (CTE). Essential for precision applications where dimensional stability is critical. Available Invar Grades Invar 36 A 36% nickel-iron alloy with the lowest…","_links":{"self":[{"href":"https:\/\/www.nickelcasting.com\/pt\/wp-json\/wp\/v2\/pages\/2298","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.nickelcasting.com\/pt\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.nickelcasting.com\/pt\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.nickelcasting.com\/pt\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.nickelcasting.com\/pt\/wp-json\/wp\/v2\/comments?post=2298"}],"version-history":[{"count":11,"href":"https:\/\/www.nickelcasting.com\/pt\/wp-json\/wp\/v2\/pages\/2298\/revisions"}],"predecessor-version":[{"id":3419,"href":"https:\/\/www.nickelcasting.com\/pt\/wp-json\/wp\/v2\/pages\/2298\/revisions\/3419"}],"up":[{"embeddable":true,"href":"https:\/\/www.nickelcasting.com\/pt\/wp-json\/wp\/v2\/pages\/1831"}],"wp:attachment":[{"href":"https:\/\/www.nickelcasting.com\/pt\/wp-json\/wp\/v2\/media?parent=2298"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}