Seamless Pipe Manufacturer In China
Seamless Pipe Manufacturer In China
1.Outer Diameter (OD): Ranges from 6mm to over 650 mm, depending on production method.
Hot-rolled: Typically 32-650 mm.
Cold-drawn/cold-rolled: As small as 6 mm, with tight tolerances (e.g., ±0.1 mm).
2.Wall Thickness: From 0.25mm (precision tubes) up to 200mm (heavy-walled pipes).
ASTM A106, A53 (carbon steel),API 5L (pipeline),GB/T 8163, GB 5310,etc.
Tensile Strength: 450-750 MPa (carbon/low-alloy), up to 900+ MPa for high-strength grades.
Yield Strength: 245-690 MPa, depending on grade and processing.
Elongation: ≥ 20%, ensuring good ductility.
Hardness: Controlled to prevent cracking; e.g., HRC ≤ 22 for sour service environments.
1.Oil & Gas: Drill pipes, casing, tubing, pipelines (especially sour service with H₂S resistance).
2.Power Plants: High-pressure boiler tubes, superheater pipes.
3.Chemical Industry: Reactor vessels, heat exchangers.
4.Mechanical Engineering: Hydraulic cylinders, automotive shafts, bearing housings.
5.Construction & Infrastructure: Structural supports, piling.
6.Shipbuilding & Offshore Platforms: Critical load-bearing and fluid transport systems.
Why Choose Seamless Pipe Manufacturer In China?
