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Large Diameter Thick Wall Seamless Steel Pipe
Large-diameter thick-wall seamless round steel pipe with no weld seam, high pressure resistance, and strong performance for energy, chemical, machinery, and foundation projects.
| Material: | Q235B/Q235C/Q355B/Q355C/Q355ND; ASTM A36/A572 Gr50; EN S235/S355 series; JIS SS400/SM490; Russian St and 09G2S grades; stainless steel available |
| Outer Diameter: | 33.7-2400 mm; large diameter and heavy wall thickness can be customized |
| Length: | Common 6-12 m; cutting, heat treatment, and nondestructive testing available |
| Surface: | Hot-rolled oxide finish; sandblasting, painting, and internal/external coating available |
Product Features
- Hot-rolled seamless forming eliminates weld seams and provides superior pressure and impact resistance.
- Large-diameter thick wall gives high bending and compressive strength with low deformation risk.
- Smooth internal and external walls support beveling, flanging, NDT, and anti-corrosion processing.
- Dense pipe body and high-temperature resistance suit heavy industrial and energy pipeline service.
Common Specifications
- Material: Q235B/Q235C/Q355B/Q355C/Q355ND; ASTM A36/A572 Gr50; EN S235/S355 series; JIS SS400/SM490; Russian St and 09G2S grades; stainless steel available
- Outer Diameter: 33.7-2400 mm; large diameter and heavy wall thickness can be customized
- Length: Common 6-12 m; cutting, heat treatment, and nondestructive testing available
- Surface: Hot-rolled oxide finish; sandblasting, painting, and internal/external coating available
Applications
- High-temperature steam, oil and gas, chemical, and high-pressure fluid pipelines
- Power-plant main steam lines and district heating trunk pipelines
- Hydraulic cylinder barrels, large equipment sleeves, and pressure equipment shells
- Large bridge, wind-power, and building foundation steel casings
