Q1030E - GB /T 28909-2012

Grade	Q1030E
Corresponding Standard	GB /T 28909-2012 Extra-High Strength Structural Steel Plates in The Heat-Treatment Condition
Classification	Alloy Steel
Properties	Strength

Q1030E Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni	Mo	V	Nb	B	Al	More
Minimum Value	-	-	-	-	-	-	-	-	-	-	-	0.015	CEV≤0.82
Maximum Value	0.2	0.8	1.6	0.02	0.01	1.6	4	0.7	0.14	0.08	0.006	-	CEV≤0.82

Q1030E Mechanical Properties

Tensile Strength σ_b Mpa	Yield Point σ_s Mpa	Elongation or Extension Rate δ %	Impact Energy Absorption KV2 J
t≤30mm: 1150~1500 t＞30mm: 1050~1400	≥1030	≥10	-20°C；-40°C： ≥27

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