Product Category

Tubular product (seamless steel pipe)

The seamless steel pipe has a hollow section and is widely applied in conveying fluid, e.g., petroleum, natural gas, coal gas, water, and some solid materials, etc. When compared with that of solid steel, the steel pipe and round steel has a light weight if the three materials have the same bending and twisting strength, and therefore are economic section steel products.


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The seamless steel pipe is widely used.

1. The seamless steel pipe for general purposes is rolled by ordinary carbon structural steel, low alloy structural steel or structural alloy steel, with the highest yield, and is mainly used as the pipeline for conveying fluid or structural parts.

2. Depending on different applications, the seamless steel pipe will be supplied according to three categories: a. Chemical composition and mechanical property; b. Mechanical property; c. Hydraulic test. The steel pipe to be supplied according to category a and b, shall be subject to hydraulic test, if it is intended for bearing hydraulic pressure.

3. The seamless pipe for special purposes include the seamless pipe for boiler, seamless steel pipe for geological purpose, seamless pipe for petroleum, etc.

Standard: API 5L / A53 / A106, GRADE A,B,X42,X46,X52,X56,X60,X65,X70 DIN17175 and A179; seamless steel pipe dimension: 1/2“-24”.

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