20Mn2 A00202 - GB /T 3077-2015

Grade	20Mn2
China ISC	A00202
Corresponding Standard	GB /T 3077-2015 Alloy structure steels
Classification	Alloy Steel
Properties	Forgability Machinability Weldability Quench Hardness
Density	7.85 g/cm³

20Mn2 Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni	Cu	Mo
Minimum Value	0.17	0.17	1.4	-	-	-	-	-	-
Maximum Value	0.24	0.37	1.8	0.03	0.03	0.3	0.3	0.3	0.1

20Mn2 Mechanical Properties

thickness t mm	Heat Treatment or Condition	Tensile Strength σ_b Mpa	Yield Point σ_s Mpa	Elongation or Extension Rate δ %	Hardness HBW	Impact Energy Absorption KV2 J
t=15 (Sample size)	Quenching + Tempering	≥785	≥590	≥10	≤187	≥47

1 Approximate Comparison Table Structural Alloy Steel

China		Taiwan, China	Japan	South Korea	United States	International Organization for Standardization	Germany		France	Russia	United Kingdom
GB	ISC	CNS	JIS	KS	ASTM/AISI	ISO	DIN EN/DIN	W-Nr.	NF EN/NF	GOST	BS EN/BS
20Mn2	A00202	SMn420	SMn420	SMn420	1320 1524	22Mn6	20Mn6	1.1169	20M5	20Г2 20Г	150M19

2 Approximate Comparison Table High-Quality Carbon Structural Steel

3 Approximate Comparison Table Structural Alloy Steel

20Mn2 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"!