12Cr12 S40310 1Cr12 403 - GB /T 1220-2007

Grade	12Cr12
China ISC	S40310
Other Names
Old Grade
Corresponding Standard	GB /T 1220-2007 Stainless Steel Bars
Classification	Martensitic Stainless Steel
Properties	Corrosion Resistance

12Cr12 Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni
Minimum Value	-	-	-	-	-	11.5	-
Maximum Value	0.15	0.5	1	0.04	0.03	13.5	0.6

12Cr12 Mechanical Properties

diameter d mm	Heat Treatment or Condition	Tensile Strength σ_b Mpa	Yield Point σ_s Mpa	Elongation or Extension Rate δ %	Reduction of Area ψ %	Hardness HBW	Impact Energy Absorption KV2 J
Steel bars; d≤75	Annealing					≤200
Sample; d≤75	Quenching + Tempering	≥590	≥390	≥25	≥55	≥170	KU2 ≥118

• This does not apply to flat bars, but if required by the buyer, it shall be determined through negotiation between the supplier and the buyer.

Approximate Comparison Table

12Cr12 Corresponding Standards(Same grade name, different standards)

Note: The data is for reference only! If you have any questions, please fill out "I want to correct it"!