30Si2MnCrMoVE D406A - GB /T 38809-2020

Grade	30Si2MnCrMoVE
China ISC	D406A
Corresponding Standard	GB /T 38809-2020 General Specification for Low Alloy Ultra-high Strength Steels
Classification	Alloy Steel

30Si2MnCrMoVE Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni ^*	Cu	Mo	V
Minimum Value	0.27	1.4	0.7	-	-	1	-	-	0.4	0.08
Maximum Value	0.32	1.7	1	0.01	0.008	1.3	0.25	0.25	0.55	0.15

*Added according to the calculated amount and reported as the measured value, not as a basis for judgment.

30Si2MnCrMoVE Mechanical Properties

nominal dimension mm	Mark	Heat Treatment or Condition	Tensile Strength σ_b Mpa	Yield Point σ_s Mpa	Elongation or Extension Rate δ %	Reduction of Area ψ %	Impact Energy Absorption KV2 J
≤450	Sampling Direction Longitudinal	Heat Treatment	≥1620	≥1320	≥9	≥40	KU2 ≥40

30Si2MnCrMoVE Corresponding Standards(Same grade name, different standards)

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