30CrMnSi A24302 - GB /T 11251-2020

Grade	30CrMnSi
China ISC	A24302
Corresponding Standard	GB /T 11251-2020 Alloy Structural Steel Plate and Strip
Classification	Alloy Steel
Properties	Strength Quench Hardness

30CrMnSi Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni	Cu	Mo
Minimum Value	0.28	0.9	0.8	-	-	0.8	-	-	-
Maximum Value	0.34	1.2	1.1	0.03	0.03	1.1	0.3	0.3	0.1

• The composition shall comply with the provisions of GB/T 3077-2015

30CrMnSi Mechanical Properties

	Heat Treatment or Condition	Tensile Strength σ_b Mpa	Elongation or Extension Rate δ %	Impact Energy Absorption KV2 J
	Annealing	550~750	≥19
	Quenching at 860~900°C Oil cool, Tempering at 470~570°C Water, Oil cool	≥1080	≥10	KU2: ≥39

• The surface Brinell hardness of steel plates delivered in a high-temperature tempered state shall comply with the provisions of GB/T 3077-2015

Approximate Comparison Table Structural Alloy Steel

30CrMnSi 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"!