Construction steel pipes are structural carbon steel tubes used in building and infrastructure projects, offering high strength, toughness, and load-bearing capacity with tensile strength typically between 400–550 MPa. They are widely applied in scaffolding, steel frameworks, and support structures for reliable and durable construction performance.
Product Parameters
|
Item |
Specification / Description |
|
Standard |
GB/T 8162, GB/T 8163, ASTM A53, ASTM A500, EN 10210, or as customer requirement |
|
Material Grades |
Q195, Q235, Q345, S235JR, S355JR, ASTM A36, or equivalent |
|
Manufacturing Method |
Hot-rolled seamless, cold-drawn seamless, or electric resistance welded (ERW) |
|
Outer Diameter Range (OD) |
21.3 mm – 610 mm |
|
Wall Thickness Range (WT) |
1.5 mm – 20 mm |
|
Length |
6 m – 12 m (customized sizes available) |
|
Surface Treatment |
Black varnished, galvanized, oiled, or anti-rust coating |
|
Welding Property |
Excellent weldability and forming performance |
|
End Finish |
Plain end, beveled end, or threaded end |
|
Shape Options |
Round, square, or rectangular section |
|
Dimensional Tolerance |
OD ±1 %, WT ±10 %, length tolerance ±50 mm |
|
Testing & Inspection |
Hydrostatic test, ultrasonic test, dimensional inspection, surface check |
|
Surface Quality |
Smooth surface without cracks, dents, or visible defects |
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