12CrMo9-10 1.7375 - EN 10028-2-2009

Grade	12CrMo9-10
European Standard Steel Grade	1.7375
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

12CrMo9-10 Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni	Cu ^⑤	Mo	N	Al
Minimum Value	0.1	-	0.3	-	-	2	-	-	0.9	-	0.01
Maximum Value	0.15	0.3	0.8	0.015	0.01	2.5	0.3	0.25	1.1	0.012	0.04

12CrMo9-10 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≤250	Normalizing and Tempering (+NT) or Quenching and Tempering (+QT)	540~690	≥355	≥18	* ≥70

1 Approximate Comparison Table Pressure-Bearing Flat Steel

International Organization for Standardization	European Standard
ISO	EN	Numerical Grade
12CrMo 9-10	12CrMo 9-10	1.7375

2 Approximate Comparison Table Steel Plate for Boilers and Pressure Vessels

China	United States	International Organization for Standardization	European Standard
GB	ASTM	ISO	EN
12Cr2Mo1R GB/T 713.2-2023	SA387 Gr.22 ASME Ⅱ-2-2021	12CrMo9-10 ISO 9328-2018	12CrMo9-10 EN 10028-2017

12CrMo9-10 Corresponding Standards(Same grade name, different standards)

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