Seamless steel pipe is a pipe without a seam or a weld-joint. Seamless steel pipe is a tubular section or hollow cylinder, usually but not necessarily of circular cross-section. They are mainly used to convey substances which can flow — liquids and gases (fluids), slurries, powders and masses of small solids.

1. Bearing steel pipe (YB / Z12—77): It is mainly used for manufacturing rolling bearing rings.

2. Hydraulic pillar pipe: It is mainly used for manufacturing hydraulic pillar, lifting pillar and inner cylinder of hydraulic oil cylinder for coal mine shaft.

3. Carbon steel seamless steel pipe for marine (GB / T5312-1999): It is mainly used for manufacturing Class 1 and 2 pressure-resistant pipes for ships.

4. Cold-rolled seamless special-shaped steel pipe (GB / T3094—1999): It is mainly used for manufacturing general structural parts.

5. Seamless steel pipe for fluid transportation (GB / T8163—1999): It is mainly used for transportation pipelines. For example: central air-conditioning, cold storage, gas, fire engineering, etc.

6. Precision seamless steel pipe for hydraulic and pneumatic cylinders (GB / T8713—1988): It is mainly used to manufacture hydraulic and pneumatic cylinders and other pipe fittings with high surface and external surface roughness requirements and precise internal and external dimensions. For example: jacks, shock absorbers, motor housings, cylinders, injection molding machinery, etc.

7. Structural seamless steel pipe (GB / T8162-1999): It is mainly used for general structure and mechanical structure.

8. Seamless steel pipes for low and medium pressure boilers (GB3087-1999): Mainly suitable for low and medium pressure boiler superheated steam pipes, boiling water pipes and other pressured and heated pipe fittings.

Changsha Xiangjia Metal Materical Co., Ltd. the Steel Pipe Division of ADTO GROUP, is one of the leading manufacturers of steel pipe in China. We supply seamless steel pipe.