High pressure seamless pipe

High pressure seamless pipe
Standard:GB 18248 JIS G3429
Main steel grade:37Mn,34Mn2V,30CrMo,35CrMo,STH11,STH12,STH21,STH22,
High pressure seamless pipe
Standard:GB 18248 JIS G3429
Application:
For high pressure container and gas cylinder
Main steel grade:37Mn,34Mn2V,30CrMo,35CrMo,STH11,STH12,STH21,STH22, etc.
Mechanical Properties
Standard
Steel Grade
Tensile Strength(MPa)
Yield Point(MPa)
Elongation(%)
GB18248
37Mn
≥750
≥630
≥16
34Mn2V
≥745
≥530
≥16
30CrMo
≥930
≥785
≥12
35CrMo
≥980
≥835
≥12
Chemical Properties
Standard
Steel Grade
Chemical Coposition
C
Si
Mn
P,S
Cu
Ni
Mo
Cr
V
GB18248
37Mn
0.34-0.40
0.10-0.30
1.35-1.65
≤0.030
≤0.20
≤0.30
/
≤0.30
/
34Mn2V
0.30-0.37
0.17-0.37
1.40-1.75
≤0.030
≤0.20
≤0.30
/
≤0.30
0.07-0.12
30CrMo
0.26-0.34
0.17-0.37
0.40-0.70
≤0.030
≤0.20
≤0.30
0.15-0.25
0.80-1.10
/
35CrMo
0.32-0.40
0.17-0.37
0.40-0.70
≤0.030
≤0.20
≤0.30
0.15-0.25
0.80-1.10
/
JIS G3429
STH11
≤0.50
0.10-0.35
≤1.80
≤0.035
/
/
/
/
/
STH12
0.30-0.41
0.10-0.35
1.35-1.70
≤0.030
/
/
/
/
/
STH21
0.25-0.35
0.15-0.35
0.40-0.90
≤0.030
/
≤0.25
0.15-0.30
0.80-1.20
/
STH22
0.33-0.38
0.15-0.35
0.40-0.90
≤0.030
/
≤0.25
0.15-0.30
0.80-1.20
/