42SiMn - JB /T 6396-2006

Grade	42SiMn
Corresponding Standard	JB /T 6396-2006 Specification for the heavy alloy structural steel forings
Classification	Alloy Steel

42SiMn Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni	Cu
Minimum Value	0.39	1.1	1.1	-	-	-	-	-
Maximum Value	0.45	1.4	1.4	0.035	0.035	0.3	0.3	0.2

42SiMn 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	≥784	≥509	≥15	≥45	235~286	≥39
101~200	Tempering	≥735	≥461	≥14	≥42	217~269	≥29
201~300	Tempering	≥686	≥441	≥13	≥40	207~255	≥29
301~500	Tempering	≥637	≥372	≥10	≥40	196~255	≥25

42SiMn 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"!