42CrNi2Si2MoVA 300M - GB /T 38809-2020

Grade	42CrNi2Si2MoVA
China ISC	300M
Corresponding Standard	GB /T 38809-2020 General Specification for Low Alloy Ultra-high Strength Steels
Classification	Alloy Steel

42CrNi2Si2MoVA Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni	Cu	Mo	V
Minimum Value	0.4	1.45	0.6	-	-	0.7	1.65	-	0.3	0.05
Maximum Value	0.45	1.8	0.9	0.01	0.01	0.95	2	0.2	0.5	0.1

42CrNi2Si2MoVA Mechanical Properties

nominal dimension mm	Mark	Heat Treatment or Condition	Tensile Strength σ_b Mpa	Yield Point σ_s Mpa	Reduction of Area ψ %
≤280	Sampling Direction: Transverse	Preheat treatment	≥1930	≥1585	≥30
<280~340	Sampling Direction: Transverse	Final Heat Treatment	≥1930	≥1585	≥25
<340~400	Sampling Direction: Transverse	Final Heat Treatment	≥1930	≥1585	≥20

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