40Cr - JB /T 6396-2006

Grade	40Cr
Corresponding Standard	JB /T 6396-2006 Specification for the heavy alloy structural steel forings
Classification	Alloy Steel

40Cr Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni	Cu
Minimum Value	0.37	0.17	0.5	-	-	0.8	-	-
Maximum Value	0.44	0.37	0.8	0.035	0.035	1.1	0.3	0.2

40Cr Mechanical Properties

	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
≤100	Tempering	≥735	≥540	≥15	≥45	217~269	≥39
101~300	Tempering	≥685	≥490	≥14	≥45	207~255	≥31
301~500	Tempering	≥635	≥440	≥10	≥35	196~255	≥23
501~800	Tempering	≥590	≥345	≥8	≥30	176~241	≥16

40Cr 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"!