Materials Spec Table
The material specification table summarizes KS and JIS symbols and mechanical properties for carbon steels, alloy steels, stainless steels, aluminum alloys, and cast irons. Common materials such as SS400 (general structural steel), S45C (machine structural carbon steel), SCM440 (chrome-moly steel), and SUS304 (stainless) can be quickly referenced for tensile strength, hardness, and typical applications.
General Structural Steel
General Structural Steel · 2 sizes
Machine Structural Carbon Steel
Machine Structural Carbon Steel · 3 sizes
Cr-Mo Steel
Cr-Mo Steel · 4 sizes
Ni-Cr-Mo Steel
Ni-Cr-Mo Steel · 1 sizes
Austenitic Stainless
Austenitic Stainless · 3 sizes
Ferritic Stainless
Ferritic Stainless · 1 sizes
Martensitic Stainless
Martensitic Stainless · 1 sizes
Carbon Tool Steel
Carbon Tool Steel · 2 sizes
Cold Work Tool Steel
Cold Work Tool Steel · 1 sizes
High Speed Steel
High Speed Steel · 1 sizes
High-C Cr Bearing Steel
High-C Cr Bearing Steel · 1 sizes
Gray Cast Iron
Gray Cast Iron · 2 sizes
Ductile Iron
Ductile Iron · 1 sizes
Aluminum Alloy
Aluminum Alloy · 3 sizes
Brass
Brass · 1 sizes
Free-Cutting Brass
Free-Cutting Brass · 1 sizes
Phosphor Bronze
Phosphor Bronze · 1 sizes
Frequently Asked Questions
What is the difference between SS400 and S45C steel?
SS400 is general structural steel (tensile ≥400 MPa); S45C is medium-carbon machinery steel (0.45% C). S45C has superior strength, hardness, and machinability but costs more.
What is the difference between SUS304 and SUS430 stainless steel?
SUS304 is austenitic (non-magnetic, excellent corrosion resistance, weldable); SUS430 is ferritic (slightly magnetic, cheaper, harder to weld).