35CrMo Gas Cylinder Pipes Mill
35CrMo seamless steel pipes are mainly used for gas cylinders and accumulator shell. IRON STEEL mainly supply 37Mn gas bottle pipe, 30CrMo, 35CrMo seamless steel pipe and 34CrMo4 seamless steel pipe for gas cylinder tubing.
GB 18248 Seamless steel pipes are applied to gas cylinder, high pressure container. There are four grades under GB 18248 standard: 37Mn, 34Mn2V, 30CrMo, and 35CrMo. We will offer GB 18248 37Mn, 34Mn2V, 30CrMo, 35CrMo Gas Cylinder Pipes with bending, forging, welding and testing service.
Chemical composition of GB 18248 Seamless Pipes:
Grade
|
Chemical composition
| |||||||||
C
|
Si
|
Mn
|
P,S
|
Cu
|
Ni
|
Mo
|
Cr
|
V
| ||
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
|
/
| |
Mechanical properities of GB 18248 Seamless Pipes:
Standard
|
Grade
|
TS(MPa)
|
YS(MPa)
|
Elongation(%)
|
GB 18248
|
37Mn
|
≥750
|
≥630
|
≥16
|
34Mn2V
|
≥745
|
≥530
|
≥16
| |
30CrMo
|
≥930
|
≥785
|
≥12
| |
35CrMo
|
≥980
|
≥835
|
≥12
|
Characteristic:35CrMo alloy steel pipe has high static strength, impact toughness and high fatigue limit, harden ability is higher than 40Cr , higher creep strength and lasting strength under high temperature , long-term working temperature up to 500 ℃.
Delivery condition: annealing / tempering. Hardness: ≦229 HBW