{"id":3883,"date":"2024-03-18T06:10:10","date_gmt":"2024-03-18T06:10:10","guid":{"rendered":"https:\/\/3dp.45612300.xyz\/product\/stainless-steel-op431-powder\/"},"modified":"2024-03-18T06:10:10","modified_gmt":"2024-03-18T06:10:10","slug":"stainless-steel-op431-powder","status":"publish","type":"product","link":"https:\/\/3dpmetal.com\/pt_br\/product\/stainless-steel-op431-powder\/","title":{"rendered":"A\u00e7o inoxid\u00e1vel OP431 Powder"},"content":{"rendered":"<p><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><\/p>\n<h2>Overview of Stainless Steel OP431 Powder<\/h2>\n<p class=\"whitespace-pre-wrap\">OP431 stainless steel belongs to the ferritic grade steels which contain chromium as the principal alloying element. The addition of aluminum enhances oxidation and corrosion resistance at high temperatures.<\/p>\n<p class=\"whitespace-pre-wrap\">Key characteristics of OP431 powder include:<\/p>\n<ul class=\"list-disc pl-8 space-y-2\">\n<li class=\"whitespace-normal\">Excellent oxidation and corrosion resistance up to 1150\u00a1\u00abC<\/li>\n<li class=\"whitespace-normal\">Good creep resistance and thermal fatigue strength<\/li>\n<li class=\"whitespace-normal\">Excellent thermo-mechanical stability<\/li>\n<li class=\"whitespace-normal\">High thermal conductivity and low thermal expansion<\/li>\n<li class=\"whitespace-normal\">Cost-effective compared to austenitic stainless steels<\/li>\n<li class=\"whitespace-normal\">Dispon\u00edveis em v\u00e1rias distribui\u00e7\u00f5es de tamanho de part\u00edculas<\/li>\n<\/ul>\n<p class=\"whitespace-pre-wrap\">OP431 powder is ideal for applications requiring oxidation resistance, thermal stability and moderate strength at elevated temperatures.<\/p>\n<h2>Chemical Composition of OP431 Powder<\/h2>\n<p class=\"whitespace-pre-wrap\">OP431 powder has the following nominal composition:<\/p>\n<table>\n<thead>\n<tr>\n<th>Elemento<\/th>\n<th>% do Peso<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Ferro (Fe)<\/td>\n<td>Equil\u00edbrio<\/td>\n<\/tr>\n<tr>\n<td>Cromo (Cr)<\/td>\n<td>16-18%<\/td>\n<\/tr>\n<tr>\n<td>Alum\u00ednio (Al)<\/td>\n<td>3-5%<\/td>\n<\/tr>\n<tr>\n<td>Yttrium (Y)<\/td>\n<td>0.2-0.5%<\/td>\n<\/tr>\n<tr>\n<td>Carbono (C)<\/td>\n<td>0,03% m\u00e1x<\/td>\n<\/tr>\n<tr>\n<td>Sil\u00edcio (Si)<\/td>\n<td>1% m\u00e1ximo<\/td>\n<\/tr>\n<tr>\n<td>Mangan\u00eas (Mn)<\/td>\n<td>1% m\u00e1ximo<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-1397 aligncenter\" src=\"https:\/\/met3dp.com\/wp-content\/uploads\/2023\/09\/Mo-300x225.jpg\" alt=\"A\u00e7o inoxid\u00e1vel OP431 Powder\" width=\"300\" height=\"225\" title=\"\"><\/p>\n<p class=\"whitespace-pre-wrap\">Chromium provides corrosion resistance while aluminum enables excellent oxidation resistance through formation of a protective alumina layer at high temperatures. Yttrium refines the grain size for additional strength.<\/p>\n<h2>Properties of OP431 Powder<\/h2>\n<p class=\"whitespace-pre-wrap\">Key properties of OP431 powder include:<\/p>\n<table>\n<thead>\n<tr>\n<th>Propriedade<\/th>\n<th>Valor<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Densidade<\/td>\n<td>7.3 g\/cm3<\/td>\n<\/tr>\n<tr>\n<td>Ponto de Fus\u00e3o<\/td>\n<td>1400-1450\u00a1\u00abC<\/td>\n<\/tr>\n<tr>\n<td>Condutividade t\u00e9rmica<\/td>\n<td>29 W\/mK<\/td>\n<\/tr>\n<tr>\n<td>Resistividade el\u00e9trica<\/td>\n<td>0.6 \u00c3\u00d7\u00b4\u00ce.cm<\/td>\n<\/tr>\n<tr>\n<td>M\u00f3dulo de Young<\/td>\n<td>200 GPa<\/td>\n<\/tr>\n<tr>\n<td>Raz\u00e3o de Poisson<\/td>\n<td>0.27-0.30<\/td>\n<\/tr>\n<tr>\n<td>Resist\u00eancia \u00e0 Tra\u00e7\u00e3o<\/td>\n<td>450-650 MPa<\/td>\n<\/tr>\n<tr>\n<td>Limite de escoamento<\/td>\n<td>280-480 MPa<\/td>\n<\/tr>\n<tr>\n<td>alongamento<\/td>\n<td>15-20%<\/td>\n<\/tr>\n<tr>\n<td>Resist\u00eancia \u00e0 oxida\u00e7\u00e3o<\/td>\n<td>Excelente at\u00e9 1150\u00a1\u00abC<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>&nbsp;<\/p>\n<p class=\"whitespace-pre-wrap\">The properties like high temperature strength, oxidation resistance, and thermal stability make OP431 suitable for demanding applications.<\/p>\n<h2>Production Method for OP431 Powder<\/h2>\n<p class=\"whitespace-pre-wrap\">OP431 powder can be produced via:<\/p>\n<ul class=\"list-disc pl-8 space-y-2\">\n<li class=\"whitespace-normal\"><strong>Atomiza\u00e7\u00e3o a g\u00e1s<\/strong>?- High pressure inert gas used to atomize the molten alloy resulting in fine spherical powder ideal for AM.<\/li>\n<li class=\"whitespace-normal\"><strong>Atomiza\u00e7\u00e3o da \u00c1gua<\/strong>?- High velocity water jet breaks up the molten stream producing irregular powder particles. Lower cost but higher oxygen pickup.<\/li>\n<li class=\"whitespace-normal\"><strong>Liga\u00e7\u00e3o Mec\u00e2nica<\/strong>?- Moagem com esferas de p\u00f3s elementares misturados seguida de sinteriza\u00e7\u00e3o e atomiza\u00e7\u00e3o secund\u00e1ria.<\/li>\n<\/ul>\n<p class=\"whitespace-pre-wrap\">Gas atomization allows excellent control over particle size distribution, morphology, oxygen pickup and microstructure.<\/p>\n<h2>Applications of OP431 Powder<\/h2>\n<p class=\"whitespace-pre-wrap\">Typical applications of OP431 powder include:<\/p>\n<ul class=\"list-disc pl-8 space-y-2\">\n<li class=\"whitespace-normal\"><strong>Manufatura aditiva<\/strong>?- Selective laser melting to produce complex parts needing high temperature oxidation resistance.<\/li>\n<li class=\"whitespace-normal\"><strong>Revestimentos por Proje\u00e7\u00e3o T\u00e9rmica<\/strong>?- Applied via arc spraying to provide protective coatings on components operating at over 1000\u00a1\u00abC.<\/li>\n<li class=\"whitespace-normal\"><strong>Solda de Brasagem<\/strong>?- For joining ferritic stainless steel parts in high temperature applications.<\/li>\n<li class=\"whitespace-normal\"><strong>Partidas de Combust\u00edvel S\u00f3lido<\/strong>?- Powder metallurgy igniter plugs used in industrial furnaces and turbines.<\/li>\n<li class=\"whitespace-normal\"><strong>Processamento de Metais Fundidos<\/strong>?- Powder metallurgy conveyor rolls, tundishes and ladles used in molten metal handling.<\/li>\n<\/ul>\n<h2>Specifications of OP431 Powder<\/h2>\n<p class=\"whitespace-pre-wrap\">OP431 powder is available under various size ranges, shapes and grades:<\/p>\n<ul class=\"list-disc pl-8 space-y-2\">\n<li class=\"whitespace-normal\"><strong>Tamanho da part\u00edcula:<\/strong>?De 15 a 45 \u00b5m para m\u00e9todos AM, at\u00e9 150 \u00b5m para processos de proje\u00e7\u00e3o t\u00e9rmica.<\/li>\n<li class=\"whitespace-normal\"><strong>Morfologia:<\/strong>?Spherical, irregular and blended shapes. Spherical powder has excellent flowability.<\/li>\n<li class=\"whitespace-normal\"><strong>Pureza:<\/strong>?From commercial to high purity grades based on application requirements.<\/li>\n<li class=\"whitespace-normal\"><strong>Oxig\u00eanio:<\/strong>N\u00edveis mantidos abaixo de 2000 ppm para a maioria das aplica\u00e7\u00f5es.<\/li>\n<li class=\"whitespace-normal\"><strong>Taxa de fluxo:<\/strong>?Powder can be customized for flow rates above 25 s\/50 g.<\/li>\n<\/ul>\n<h2>Global Suppliers of OP431 Powder<\/h2>\n<p class=\"whitespace-pre-wrap\">Some of the major global suppliers of OP431 powder include:<\/p>\n<ul class=\"list-disc pl-8 space-y-2\">\n<li class=\"whitespace-normal\">Sandvik Osprey (Reino Unido)<\/li>\n<li class=\"whitespace-normal\">Hoganas (Su\u00e9cia)<\/li>\n<li class=\"whitespace-normal\">Carpenter Powder Products (EUA)<\/li>\n<li class=\"whitespace-normal\">Praxair Surface Technologies (USA)<\/li>\n<li class=\"whitespace-normal\">CNPC Powder Group (China)<\/li>\n<\/ul>\n<p class=\"whitespace-pre-wrap\">These companies produce various grades of OP431 powder tailored for additive manufacturing, thermal spray, powder metallurgy and other high temperature applications.<\/p>\n<h2>Pricing of OP431 Powder<\/h2>\n<p class=\"whitespace-pre-wrap\">OP431 powder is priced higher than austenitic grades but lower than exotic alloys:<\/p>\n<ul class=\"list-disc pl-8 space-y-2\">\n<li class=\"whitespace-normal\"><strong>Quantidade<\/strong>?- $50-100 per kg for bulk orders above 500 kg. Smaller quantities are priced significantly higher.<\/li>\n<li class=\"whitespace-normal\"><strong>Qualidade<\/strong>?- High purity, spherical powder with controlled characteristics demands premium pricing.<\/li>\n<li class=\"whitespace-normal\"><strong>Fornecedor<\/strong>?- Large global suppliers offer competitive pricing owing to higher volumes.<\/li>\n<li class=\"whitespace-normal\"><strong>Geografia<\/strong>?- Prices vary between regions with Europe and North America being higher priced markets.<\/li>\n<\/ul>\n<p class=\"whitespace-pre-wrap\">For critical applications, buyers should focus on quality rather than lowest cost while procuring OP431 powder.<\/p>\n<h2>Storage and Handling of OP431 Powder<\/h2>\n<p class=\"whitespace-pre-wrap\">OP431 powder requires the following storage and handling:<\/p>\n<ul class=\"list-disc pl-8 space-y-2\">\n<li class=\"whitespace-normal\">Deve ser armazenado em recipientes lacrados sob g\u00e1s inerte para evitar oxida\u00e7\u00e3o.<\/li>\n<li class=\"whitespace-normal\">Avoid accumulation of fine powder to minimize dust explosion risks<\/li>\n<li class=\"whitespace-normal\">Use proper PPE, ventilation, grounding and safety practices during handling<\/li>\n<li class=\"whitespace-normal\">Evite contato do p\u00f3 com materiais incompat\u00edveis<\/li>\n<li class=\"whitespace-normal\">Follow safety guidelines provided by supplier SDS<\/li>\n<\/ul>\n<p class=\"whitespace-pre-wrap\">Proper protective measures must be taken when handling this reactive alloy powder.<\/p>\n<h2>Inspection and Testing of OP431 Powder<\/h2>\n<p class=\"whitespace-pre-wrap\">Key quality control tests performed on OP431 powder include:<\/p>\n<ul class=\"list-disc pl-8 space-y-2\">\n<li class=\"whitespace-normal\">An\u00e1lise qu\u00edmica usando OES ou XRF para garantir que a composi\u00e7\u00e3o est\u00e1 dentro dos limites especificados<\/li>\n<li class=\"whitespace-normal\">Distribui\u00e7\u00e3o do tamanho de part\u00edculas conforme a norma ASTM B822<\/li>\n<li class=\"whitespace-normal\">An\u00e1lise da morfologia por meio de MEV<\/li>\n<li class=\"whitespace-normal\">Taxa de fluxo de p\u00f3 medida de acordo com a norma ASTM B213<\/li>\n<li class=\"whitespace-normal\">Oxygen and nitrogen content testing by inert gas fusion<\/li>\n<li class=\"whitespace-normal\">Density determined by helium pycnometry<\/li>\n<li class=\"whitespace-normal\">Microstructure characterization by XRD<\/li>\n<\/ul>\n<p class=\"whitespace-pre-wrap\">Testes minuciosos garantem que o p\u00f3 atenda \u00e0s caracter\u00edsticas qu\u00edmicas, f\u00edsicas e microestruturais necess\u00e1rias para a aplica\u00e7\u00e3o pretendida.<\/p>\n<h2>Comparison Between OP431 and 316L Stainless Steel Powders<\/h2>\n<p class=\"whitespace-pre-wrap\">OP431 and 316L stainless steel powders are compared:<\/p>\n<table>\n<thead>\n<tr>\n<th>Par\u00e2metro<\/th>\n<th>OP431<\/th>\n<th>316L<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Tipo<\/td>\n<td>Ferritic<\/td>\n<td>Austenitic<\/td>\n<\/tr>\n<tr>\n<td>Teor de Cr<\/td>\n<td>16-18%<\/td>\n<td>16-18%<\/td>\n<\/tr>\n<tr>\n<td>Ni content<\/td>\n<td>&#8211;<\/td>\n<td>10-14%<\/td>\n<\/tr>\n<tr>\n<td>Resist\u00eancia a altas temperaturas<\/td>\n<td>Maior<\/td>\n<td>Mais baixo<\/td>\n<\/tr>\n<tr>\n<td>Resist\u00eancia \u00e0 corros\u00e3o<\/td>\n<td>Moderado<\/td>\n<td>Excelente<\/td>\n<\/tr>\n<tr>\n<td>Custo<\/td>\n<td>Mais baixo<\/td>\n<td>Maior<\/td>\n<\/tr>\n<tr>\n<td>APLICATIVOS<\/td>\n<td>Thermal spray, igniters<\/td>\n<td>Automotivo, constru\u00e7\u00e3o<\/td>\n<\/tr>\n<tr>\n<td>Soldabilidade<\/td>\n<td>Pobre<\/td>\n<td>Excelente<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>&nbsp;<\/p>\n<p class=\"whitespace-pre-wrap\">OP431 offers much better high temperature strength whereas 316L provides excellent fabrication characteristics and corrosion resistance.<\/p>\n<h2>OP431 Powder FAQs<\/h2>\n<p class=\"whitespace-pre-wrap\"><strong>Q: How is OP431 powder produced?<\/strong><\/p>\n<p class=\"whitespace-pre-wrap\">A: OP431 powder is commercially produced using gas atomization, water atomization, and mechanical alloying followed by sintering. Gas atomization provides the best control of powder characteristics.<\/p>\n<p class=\"whitespace-pre-wrap\"><strong>Q: What are the main applications of OP431 powder?<\/strong><\/p>\n<p class=\"whitespace-pre-wrap\">A: Key applications include thermal spray coatings, additive manufacturing, brazing filler, powder metallurgy igniter plugs, and high temperature molten metal handling components where oxidation resistance is needed.<\/p>\n<p class=\"whitespace-pre-wrap\"><strong>Q: What is the typical OP431 powder size range used in metal AM?<\/strong><\/p>\n<p class=\"whitespace-pre-wrap\">A: For most metal AM processes, the ideal OP431 powder size range is 15-45 microns with spherical morphology and good powder flow characteristics.<\/p>\n<p class=\"whitespace-pre-wrap\"><strong>Q: Does OP431 powder require any special handling precautions?<\/strong><\/p>\n<p class=\"whitespace-pre-wrap\">A: Yes, it is recommended to handle this reactive powder carefully under inert atmosphere using proper ventilation, grounding, and PPE.<\/p>\n<p class=\"whitespace-pre-wrap\"><strong>Q: Where can I purchase OP431 powder suitable for thermal spray coatings?<\/strong><\/p>\n<p class=\"whitespace-pre-wrap\">A: For thermal spray applications requiring high temperature oxidation resistance, OP431 powder can be purchased from leading manufacturers including Sandvik Osprey, Hoganas, Praxair Surface Technologies, and CNPC Powder Group.<\/p>\n<p><\/span><\/span><\/p>","protected":false},"excerpt":{"rendered":"<p>Vis\u00e3o geral do a\u00e7o inoxid\u00e1vel OP431 em p\u00f3 O a\u00e7o inoxid\u00e1vel OP431 pertence aos a\u00e7os de grau ferr\u00edtico que cont\u00eam cromo como o principal elemento de liga. A adi\u00e7\u00e3o de alum\u00ednio aumenta a resist\u00eancia \u00e0 oxida\u00e7\u00e3o e \u00e0 corros\u00e3o em altas temperaturas. As principais caracter\u00edsticas do p\u00f3 OP431 incluem: Excelente resist\u00eancia \u00e0 oxida\u00e7\u00e3o e \u00e0 corros\u00e3o at\u00e9 1150\u00a1\"C Boa resist\u00eancia \u00e0 flu\u00eancia e \u00e0 fadiga t\u00e9rmica...<\/p>","protected":false},"featured_media":1770,"parent":0,"template":"","meta":{"_acf_changed":false,"_kad_blocks_custom_css":"","_kad_blocks_head_custom_js":"","_kad_blocks_body_custom_js":"","_kad_blocks_footer_custom_js":"","_kad_post_transparent":"","_kad_post_title":"","_kad_post_layout":"","_kad_post_sidebar_id":"","_kad_post_content_style":"","_kad_post_vertical_padding":"","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false,"_kad_post_classname":""},"product-category":[119,122],"class_list":["post-3883","product","type-product","status-publish","has-post-thumbnail","hentry","product-category-3d-printing-metal-powder","product-category-iron-based-alloy-powder"],"acf":[],"taxonomy_info":{"product-category":[{"value":119,"label":"3D Printing Metal Powder"},{"value":122,"label":"Iron Based Alloy Powder"}]},"featured_image_src_large":["https:\/\/3dpmetal.com\/wp-content\/uploads\/2024\/02\/Stainless-Steel-OP431-Powder.jpg",600,600,false],"author_info":[],"comment_info":"","_links":{"self":[{"href":"https:\/\/3dpmetal.com\/pt_br\/wp-json\/wp\/v2\/product\/3883","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/3dpmetal.com\/pt_br\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/3dpmetal.com\/pt_br\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/3dpmetal.com\/pt_br\/wp-json\/wp\/v2\/media\/1770"}],"wp:attachment":[{"href":"https:\/\/3dpmetal.com\/pt_br\/wp-json\/wp\/v2\/media?parent=3883"}],"wp:term":[{"taxonomy":"product-category","embeddable":true,"href":"https:\/\/3dpmetal.com\/pt_br\/wp-json\/wp\/v2\/product-category?post=3883"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}