30CrMoE - GB /T 44457-2024

Grade	30CrMoE
Corresponding Standard	GB /T 44457-2024 Hydrogen Storage Pressure Vessel Used in Hydrogen Refueling Station
Classification	Alloy Steel

30CrMoE Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni	Cu	Mo	More
Minimum Value	0.26	0.17	0.4	-	-	0.8	-	-	0.15	P+S≤0.02
Maximum Value	0.34	0.37	0.7	0.015	0.008	1.1	0.3	0.2	0.25	P+S≤0.02

• The allowable deviation of the finished product analysis of the chemical composition of seamless steel pipe materials is: P: +0.003%, S: +0.002%, and other elements shall comply with the provisions of GB/T 222. The total mass fraction of alloying elements such as V, Nb, Ti, B and Zr should not exceed 0.15%.

30CrMoE Mechanical Properties

Heat Treatment or Condition	Tensile Strength σ_b Mpa	Specified Plastic Yield Strength Rp_0.2 Mpa	Elongation or Extension Rate δ %	Impact Energy Absorption KV2 J
quenching and tempering	800~880	ReL ≥520	≥20	-40°C ≥47

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