Product Description

Seamless steel tubes for gas cylinders are seamless steel tubes suitable for manufacturing gas cylinders

and accumulator shells.

Standard:

GB/T 18248 -- China National Standard

Q/321088HGB3 -- Enterprise standard of Jiangsu Chengde Steel Pipe Co.

ASTM A519 -- American Society for Testing and Materials (ASTM) Standard

JIS G3429 -- Japanese Industrial Standard

DOT49CFR178.37 -- U.S. Department of Transportation (DOT) Standards

Main production steel pipe grades: 37Mn,30CrMo,35CrMo,STH11,STH12,STH21,STH22,4130X

Uses: For the manufacture of gas cylinders with hot-rolled large diameter seamless steel pipe

Pipe TypesDiameter(D)Wall thickness(S) Outer diameter of steel pipe(mm)Permissible deviation(mm)Wall thickness of steel pipe(mm)Permissible deviation(mm) Hot Rolled Pipeφ559±1.0%17-0%,+25

StandardGradeChemical Components(%) CSiMnPSCrNiCuMoV Q/321088HGB34130X0.25~0.350.15~0.350.40~0.90≤0.020≤0.0100.80~1.10≤0.25≤0.200.15~0.25≤0.08 GB/T 1824837Mn0.34~0.380.10~0.351.35~1.75≤0.020≤0.010≤0.30≤0.30≤0.20-- 30CrMo0.26~0.330.17~0.370.40~0.70≤0.020≤0.0100.80~1.10≤0.30≤0.200.15~0.25- 35CrMo0.32~0.400.17~0.370.40~0.70≤0.020≤0.0100.80~1.10≤0.30≤0.200.15~0.25- JIS G 3429STH11≤0.500.10~0.35≤1.80≤0.035≤0.035----- STH120.30~0.410.10~0.351.35~1.75≤0.030≤0.030----- STH210.25~0.350.15~0.350.40~0.90≤0.030≤0.0300.80~1.20≤0.25--- STH220.33~0.380.15~0.350.40~0.90≤0.030≤0.0300.80~1.20≤0.25---

Detailed Photos

Certifications

Packaging & Shipping

Packing Details:
1.Export sea worthy package + water proof paper
2.Safe loading and fixing Professional teams

Delivery Detail: within 7-10 working days after receiving the deposit or according to your order quantity.