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GB/T18248 air bottle pipes

GB/T18248 37Mn Air Bottle Pipes

C	Si	Mn	P	S	P+S	Cr	Mo	V	Ni	Cu
0.34-0.40	0.10-0.30	1.35-1.75	≤0.020	≤0.020	≤0.030	≤0.30	-	-	≤0.30	≤0.20
Yieldstrength(MPa) min				Tensilestrength(Mpa) min				Elongation(%) min
630				750				16

GB/T18248 34Mn2V Air Bottle Pipes

C	Si	Mn	P	S	P+S	Cr	Mo	V	Ni	Cu
0.30-0.37	0.17-0.37	1.40-1.75	≤0.020	≤0.020	≤0.030	≤0.30	-	0.07-0.12	≤0.30	≤0.20
Yieldstrength(MPa) min				Tensilestrength(Mpa) min				Elongation(%) min
530				745				16

GB/T18248 30CrMo Air Bottle Pipes

C	Si	Mn	P	S	P+S	Cr	Mo	V	Ni	Cu
0.26-0.34	0.17-0.37	0.40-0.70	≤0.020	≤0.020	≤0.030	0.08-1.10	0.15-0.25	-	≤0.30	≤0.20
Yieldstrength(MPa) min				Tensilestrength(Mpa) min				Elongation(%) min
785				930				12

GB/T18248 35CrMo Air Bottle Pipes

C	Si	Mn	P	S	P+S	Cr	Mo	V	Ni	Cu
0.32-0.40	0.17-0.37	0.40-0.70	≤0.020	≤0.020	≤0.030	0.08-1.10	0.15-0.25	-	≤0.30	≤0.20
Yieldstrength(MPa) min				Tensilestrength(Mpa) min				Elongation(%) min
835				980				12

GB/T18248 34CrMo4 Air Bottle Pipes

C	Si	Mn	P	S	P+S	Cr	Mo	V	Ni	Cu
0.30-0.37	≤0.40	0.60-0.90	≤0.020	≤0.020	≤0.030	0.90-1.20	0.15-0.30	-	≤0.30	≤0.20
Yieldstrength(MPa) min				Tensilestrength(Mpa) min				Elongation(%) min
835				980				12

GB/T18248 30CrMnSiA Air Bottle Pipes

C	Si	Mn	P	S	P+S	Cr	Mo	V	Ni	Cu
0.28-0.34	0.90-1.20	0.80-1.10	≤0.020	≤0.020	≤0.030	0.80-1.10	≤0.10	-	≤0.30	≤0.20
Yieldstrength(MPa) min				Tensilestrength(Mpa) min				Elongation(%) min
885				1080				10

If you are interested in other Gas Cylinder Pipe, please click - ASTM A519.

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