{"id":11768,"date":"2025-12-29T10:33:52","date_gmt":"2025-12-29T02:33:52","guid":{"rendered":"https:\/\/aobosteel.com\/?page_id=11768"},"modified":"2026-04-01T11:17:53","modified_gmt":"2026-04-01T03:17:53","slug":"selection-of-tool-steel-for-powder-compaction-dies","status":"publish","type":"page","link":"https:\/\/aobosteel.com\/pt\/selection-of-tool-steel-for-powder-compaction-dies\/","title":{"rendered":"Tool Steel Selection for Powder Compaction Dies | D2, M2, A2, S7"},"content":{"rendered":"
\n

Tool Steel Selection for Powder Compaction Dies<\/h1>\n\n\n\n

Powder compaction dies operate under high compressive stress combined with continuous abrasive contact. During pressing, the tooling must maintain dimensional accuracy under load, while during ejection, it is subjected to friction and additional tensile stress.<\/p>\n\n\n\n

In production, tool life is typically limited by one of three mechanisms: abrasive wear from powder particles, plastic deformation under load, or cracking during stripping. Material selection is therefore defined by which of these failure modes appears first and limits service life.<\/p>\n\n\n\n

Princ\u00edpio de Sele\u00e7\u00e3o Principal<\/h2>\n\n\n\n

Tool steel selection for powder compaction dies depends on how the tooling responds to load, abrasion, and cyclic stress.<\/p>\n\n\n\n

When abrasive wear dominates, the die surface gradually loses dimensional accuracy. When compressive strength is insufficient, punches and core rods begin to deform under repeated loading. When toughness is inadequate, cracking occurs during ejection, often before noticeable wear develops.<\/p>\n\n\n\n

In most applications, one of these mechanisms controls tool life. Selection should focus on addressing that specific failure behavior rather than balancing all properties equally.<\/p>\n\n\n\n

Sele\u00e7\u00e3o de materiais com base nas condi\u00e7\u00f5es de aplica\u00e7\u00e3o<\/h2>\n\n\n\n
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D2(1.279\/SKD11) \/ D3(1.2080\/SKD1)<\/h3>\n\n\n\n

D2 and D3 are used when die life is limited by surface wear caused by hard powder particles. Their high carbide content reduces wear and helps maintain dimensional accuracy during continuous production.<\/p>\n\n\n\n

They are most effective in die inserts operating under stable loading conditions. Once cracking begins to appear during ejection or when tensile stress affects punches and core rods, these grades no longer extend tool life and should be replaced by higher-toughness steels.<\/p>\n\n\n\n

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Enviar consulta agora<\/a><\/div>\n\n\n\n
View D2 \/ D3 Tool Steel Supply Details<\/a><\/div>\n<\/div>\n<\/div>\n\n\n\n
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A\u00e7o para ferramentas M2 | 1.3343 | SKH51 <\/h3>\n\n\n\n

M2 is applied where tooling must resist both high compressive stress and wear. This is particularly relevant for punches and core rods, which carry the full compaction load and are exposed to friction during stripping.<\/p>\n\n\n\n

These steels are used when deformation, bending, or loss of dimensional stability appears under repeated cycles. In such conditions, increasing compressive strength becomes more effective than increasing carbide content.<\/p>\n\n\n\n

\n
Enviar consulta agora<\/a><\/div>\n\n\n\n
View M2 Supply Details<\/a><\/div>\n<\/div>\n<\/div>\n\n\n\n
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A\u00e7o ferramenta AISI A2 | 1.2363 | SKD12<\/h3>\n\n\n\n

A2 is selected when wear, deformation, and cracking are all present, but none clearly dominate. It provides a balance between toughness and wear resistance, making it suitable for applications requiring both edge stability and resistance to cracking.<\/p>\n\n\n\n

It is often used in solid die constructions or where reducing cracking risk is as important as controlling wear.<\/p>\n\n\n\n

\n
Enviar consulta agora<\/a><\/div>\n\n\n\n
Veja os detalhes de fornecimento do a\u00e7o ferramenta A2.<\/a><\/div>\n<\/div>\n<\/div>\n\n\n\n
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A\u00e7o ferramenta AISI S7 | 1.2355<\/h3>\n\n\n\n

S7 is used when tooling fails by cracking, chipping, or sudden breakage, especially during ejection. Its high toughness allows it to absorb tensile and cyclic stresses that occur when the compact is stripped from the die.<\/p>\n\n\n\n

When tools fail before significant wear is observed, increasing toughness becomes more effective than increasing hardness. In these cases, S7 provides a more appropriate solution despite its lower abrasion resistance.<\/p>\n\n\n\n

\n
Enviar consulta agora<\/a><\/div>\n\n\n\n
Veja os detalhes de fornecimento do a\u00e7o ferramenta S7.<\/a><\/div>\n<\/div>\n<\/div>\n\n\n\n

L\u00f3gica de Sele\u00e7\u00e3o Pr\u00e1tica<\/h2>\n\n\n\n

Material selection becomes straightforward when it is based on observed failure behavior.<\/p>\n\n\n\n

If the die surfaces lose accuracy due to abrasion, D2 or D3 should be used. If punches deform under load, M2 or M4 is more suitable. If cracking or breakage occurs during ejection, S7 is required. When none of these conditions dominate, and multiple failure modes co-occur, A2 provides a balanced solution.<\/p>\n\n\n\n

Tabela Resumo<\/h2>\n\n\n\n
A\u00e7o ferramenta de alta qualidade<\/td>Dureza de trabalho t\u00edpica<\/td>Principal motivo de sele\u00e7\u00e3o<\/td><\/tr>
D2 \/ D3<\/td>60\u201364 HRC<\/td>Wear resistance for abrasive powder contact<\/td><\/tr>
M2 \/ M4<\/td>62\u201366 HRC<\/td>Compressive strength and wear resistance for punches<\/td><\/tr>
A2<\/td>58\u201362 HRC<\/td>Desempenho equilibrado em condi\u00e7\u00f5es mistas.<\/td><\/tr>
S7<\/td>56\u201358 HRC<\/td>Toughness to prevent cracking and breakage<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

Conclus\u00e3o<\/h2>\n\n\n\n

Powder compaction die selection should be based on the dominant failure mode observed in production. Wear, deformation, and cracking require different material responses, and selecting the correct steel depends on identifying which mechanism limits tool life.<\/p>\n<\/div><\/div>","protected":false},"excerpt":{"rendered":"

Tool Steel Selection for Powder Compaction Dies Powder compaction dies operate under high compressive stress combined with continuous abrasive contact. During pressing, the tooling must maintain dimensional accuracy under load, while during ejection, it is subjected to friction and additional tensile stress. In production, tool life is typically limited by one of three mechanisms: abrasive […]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"content-type":"knowledge-article","_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":"disabled","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","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":"","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-11768","page","type-page","status-publish","hentry"],"yoast_head":"\nTool Steel Selection for Powder Compaction Dies | D2, M2, A2, S7<\/title>\n<meta name=\"description\" content=\"Select the appropriate tool steel for powder-compaction dies based on wear, deformation, and cracking conditions. 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