Steel knowledge library

Practical steel grade guides for tooling, molds and procurement.

Steel Materials Guide is a structured reference site for engineers, buyers and mold makers who need clear material selection notes, comparison articles, heat treatment guidance and quality control checklists.

100technical articles
6research topics
2026updated library
1clear steel focus
Steel materials guide technical illustration

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Start with the material problem, then narrow the grade choice.

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Featured Steel Guides

Core reference pages for common mold, tool and stainless steel decisions.

P20 Mold Steel guide thumbnail
Plastic Mold Steel

P20 Mold Steel

P20 Mold Steel guide for engineers and buyers: material selection, specification checks, processing notes, risks and procurement advice.

H13 Tool Steel guide thumbnail
Tool Steel

H13 Tool Steel

H13 Tool Steel guide for engineers and buyers: material selection, specification checks, processing notes, risks and procurement advice.

D2 Tool Steel guide thumbnail
Tool Steel

D2 Tool Steel

D2 Tool Steel guide for engineers and buyers: material selection, specification checks, processing notes, risks and procurement advice.

S136 Mold Steel guide thumbnail
Stainless Mold Steel

S136 Mold Steel

S136 Mold Steel guide for engineers and buyers: material selection, specification checks, processing notes, risks and procurement advice.

NAK80 Steel guide thumbnail
Plastic Mold Steel

NAK80 Steel

NAK80 Steel guide for engineers and buyers: material selection, specification checks, processing notes, risks and procurement advice.

4140 Steel guide thumbnail
Tool Steel

4140 Steel

4140 Steel guide for engineers and buyers: material selection, specification checks, processing notes, risks and procurement advice.

4340 Alloy Steel guide thumbnail
Tool Steel

4340 Alloy Steel

4340 Alloy Steel guide for engineers and buyers: material selection, specification checks, processing notes, risks and procurement advice.

8620 Steel guide thumbnail
Tool Steel

8620 Steel

8620 Steel guide for engineers and buyers: material selection, specification checks, processing notes, risks and procurement advice.

6150 Spring Steel guide thumbnail
Tool Steel

6150 Spring Steel

6150 Spring Steel guide for engineers and buyers: material selection, specification checks, processing notes, risks and procurement advice.