seamless steel tubes for gas cylinder

Steel Grade: 37Mn, 34Mn2V, 30CrMo, 35CrMo, 34CrMo4, 30CrMnSiA

Standard: GB 18248-2008

Application: It is for cylinders and accumulator shell.

Sizes: O.D.: 60mm~219mm, W.T.: 4mm~35mm.

Chemical Composition, Mass Fraction(%): (30CrMo for example)

Steel Grade	C	Si	Mn	P	S	P+S	Cr	Mo	Ni	Cu
30CrMo	0.26~0.34	0.17~0.37	0.40~0.70	0.020	0.020	0.030	0.80~1.10	0.15~0.25	0.30	0.20

Mechanical Properties: (30CrMo for example)

Steel Grade	tensile strength	(MPa) yield strength	Elongation (%)	impact test
	30CrMo	930	785	12	-50

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