10CrMo9-10 1.7380 - EN 10028-2-2009

Grade	10CrMo9-10
European Standard Steel Grade	1.7380
Corresponding Standard	EN 10028-2-2009 Flat products made of steels for pressure purposes Part 2 Non-alloy and alloy steels with specified elevated temperature properties
Classification	Alloy Steel

10CrMo9-10 Chemical Element Composition Content (%)

Component	C ^①	Si	Mn	P	S	Cr	Cu ^⑤	Mo	N
Minimum Value	0.08	-	0.4	-	-	2	-	0.9	-
Maximum Value	0.14	0.5	0.8	0.02	0.01	2.5	0.3	1.1	0.012

10CrMo9-10 Mechanical Properties

thickness t mm	Heat Treatment or Condition	Tensile Strength σ_b Mpa	Yield Point σ_s Mpa	Elongation or Extension Rate δ %	Impact Energy Absorption KV2 J
t≤16	Normalizing and Tempering (+NT)	480~630	≥310	≥18	* ≥31
16＜t≤40	Normalizing and Tempering (+NT)	480~630	≥300	≥18	≥31
40＜t≤60	Normalizing and Tempering (+NT)	480~630	≥290	≥18	≥31
60＜t≤100	Normalizing and Tempering (+NT) or Quenching and Tempering (+QT)	470~620	≥280	≥17	≥27
100＜t≤150	Quenching and Tempering (+QT)	460~610	≥260	≥17	≥27
150＜t≤250	Quenching and Tempering (+QT)	450~600	≥250	≥17	≥27

1 Approximate Comparison Table Pressure-Bearing Flat Steel

International Organization for Standardization	European Standard
ISO	EN	Numerical Grade
10CrMo 9-10	10CrMo 9-10	1.7380

2 Approximate Comparison Table Structural Alloy Steel

China	Japan	United States	International Organization for Standardization	Germany	France	European Standard		Russia	Sweden	United Kingdom
GB	JIS	ASTM	ISO	DIN EN/DIN	NF EN/NF	EN	Numerical Grade	GOST	SS	BS EN/BS
12CrMo	SCMV4	A387Gr.22 Gr.P22	F34 P34 TS34	10CrMo9-10	10CD9-10 12CD9-10	10CrMo9-10	1.7380	10KH2M	2218	622 622Gr.31

3 Approximate Comparison Table Seamless Steel Tubes and Pipes for High Pressure Boiler

10CrMo9-10 Corresponding Standards(Same grade name, different standards)

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