Seamless tubes for gas cylinders

Seamless tubes for gas cylinders,CNG cylinders for Vehicle, gas cylinder for fire extinguisher, etc.

Cylinder tubes: EN10083, ASTM A519-American materials and testing institution standards

steel grades: 37Mn, 30CrMo, 35CrMo, 34Mn2V, 34CrMo4, etc

Material Chemical composition%
C Si Mn P S Mo Cr V other
37Mn 0.34~0.40 0.10~0.30 1.35~1.65 ≤0.025 ≤0.020 Ni:≤0.30 Cu≤0.20
30CrMo 0.26~0.34 0.17~0.37 0.40~0.70 ≤0.025 ≤0.020 0.15~ 0.25 0.80~
1.10
35CrMo 0.32~0.40 0.17~0.37 0.40~0.70 ≤0.025 ≤0.020 0.15~
0.25
0.80~
1.10
34Mn2V 0.30~0.37 0.17~0.37 1.40~1.75 ≤0.025 ≤0.020 0.07~
0.12
34CrMo4 0.30~0.37 0.15~0.35 0.50~0.80 ≤0.025 ≤0.020 0.15~
0.25
0.90~
1.20
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