Description
Manufacturing Types：
| Category | Seamless Carbon Steel Pipe | Welded Carbon Steel Pipe |
| Production Method | Pierced from solid billets and rolled into hollow tubes | Rolled from steel strips or plates, welded by ERW / LSAW / SSAW |
| Manufacturing Process | Hot Rolled → Cold Drawn → Heat Treated → Straightened | ERW / LSAW / SSAW |
| Key Standards | ASTM A106 / ASTM A53 / ASTM A333 / ASTM A335 / API 5L / API 5CT / EN 10210 / EN 10216 / GB/T 8162 / GB/T 8163 / GB/T 3087 | ASTM A53 / ASTM A252 / API 5L / EN 10217 / EN 10219 / EN 10255 / GB/T 3091 / GB/T 9711 / BS 1387 |
| Available Grades | ASTM A106 Grade B / API 5L Grade B / A333 Grade 6 / A335 P11 / P22 / P91 / 20# / 10# / 45# / 16Mn / ST37.8 / ST52 / P235GH / P265GH | Q195 / Q215 / Q235 / Q255 / Q275 / Q345 (A/B/C/D/E) / S185 / S235JR / S275JR / S355JR / S355JO / Grade B / X42 / X52 / X60 / X65 (API 5L) |
| Applications | Oil & Gas / Energy / Petrochemical / Power / Boiler & Pressure Systems / Refinery Piping | Construction / Water Supply / Machinery / Structural & General Engineering / Infrastructure Projects |
| Pressure / Leak Tests | Hydrostatic Test, Air Leak Test (as required) | |
| Mechanical Tests | Flattening, Flaring, Bending, Expanding, Hardness, Impact Tests (as required) | |
| Nondestructive Tests | Ultrasonic (UT), Eddy Current (ET), Magnetic Particle (MT), Penetrant (PT), Radiographic (RT) (Available upon request or according to applicable standards) |
|
| Certificates | Mill Test Certificate (MTC) / ISO / SGS / BV / TÜV | |
Available Shapes:
| Pipe Type | Size Range | Wall Thickness | Length |
| Round Pipe | OD 13.7 – 3048 mm | 1.2 – 60 mm | 5.8 m / 6 m / 11.8 m / 12 m (or as required) |
| Square Pipe | 20 × 20 – 1200 × 1200 mm | 1.5 – 50 mm | 5.8 m / 6 m / 11.8 m / 12 m (or as required) |
| Rectangular Pipe | 10 × 20 – 1000 × 1500 mm | 1.5 – 50 mm | 5.8 m / 6 m / 11.8 m / 12 m (or as required) |
Surface Finish Options:
| Surface Finish | Description | |
| Black (As-Rolled) | Original mill surface with oxide scale, suitable for structural use. | |
| Galvanized (Hot-Dip / Electro) | Zinc-coated for long-term corrosion resistance. | |
| Oiled / Varnished / Painted | Anti-rust coating for storage and transport protection. | |
