13CrMo 4-5 - ISO 9330-4-2000

Grade	13CrMo 4-5
Corresponding Standard	ISO 9330-4-2000 Submerged Arc-welded Unalloyed and Alloyed Steel Tubes with Specified Elevated Temperature Properties
Classification	Alloy Steel

13CrMo 4-5 Chemical Element Composition Content (%)

Component	C ^②	Si	Mn	P	S	Cr	Cu ^①	Mo	Al ^③
Minimum Value	0.1	0.15	0.4	-	-	0.7	-	0.4	-
Maximum Value	0.17	0.35	0.7	0.035	0.03	1.1	0.25	0.6	0.02

13CrMo 4-5 Mechanical Properties

	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≤40	Normalizing 900~960°C, tempering 660~730°C, air cooling	440~590	≥290	Longitudinal, ≥ 22; Transverse, ≥ 20	t > 30, Transverse 27
40＜t≤60	Normalizing 900~960°C, tempering 660~730°C, air cooling	440~590	≥280	Longitudinal, ≥ 22; Transverse, ≥ 20	Transverse 27

Approximate Comparison Table Steel Plate for Boilers and Pressure Vessels

China	United States	International Organization for Standardization	European Standard		Russia
GB	ASTM	ISO	EN	Numerical Grade	GOST
15CrMoR GB/T 713.2-2023	SA387 Gr.12 ASME Ⅱ-A-2021	13CrMo4-5 ISO 9328-2018	13CrMo4-5 EN 10028-2017	1.7335	12ХМ

13CrMo4-5 Corresponding Standards(Same grade name, different standards)

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