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

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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