40Cr13 S42040 4Cr13 - GB /T 1220-2007

Grade	40Cr13
China ISC	S42040
Old Grade
Corresponding Standard	GB /T 1220-2007 Stainless Steel Bars
Classification	Martensitic Stainless Steel

40Cr13 Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni
Minimum Value	0.36	-	-	-	-	12	-
Maximum Value	0.45	0.6	0.8	0.04	0.03	14	0.6

40Cr13 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					≤235
Sample; d≤75	Quenching + Tempering	-	-	-	-	HRC ≥50	-

• 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

China		United States	International Organization for Standardization		Germany	France	European Standard		Russia
GB	ISC	UNS	ISO	Numerical Grade	DIN EN/DIN	NF EN/NF	EN	Numerical Grade	GOST
40Cr13 (4Cr13)	S42040	S42000	X39Cr 13 X46Cr13 X52Cr13	4031-420-00-I 4034-420-00-I 4038-420-00-I	X38Cr 13	Z40C 14	X39Cr 13	1.4031 1.4034 (1.4038)	40Х13

40Cr13 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"!