Q355B Hot Rolled ERW Square Steel Pipes

 

GNEE Group produces Q355B square welded pipes, which are low-alloy resistance welded pipes. Q355B steel pipes exhibit excellent comprehensive mechanical properties, good low-temperature performance, and exhibit good plasticity and weldability. They are used in medium to low-pressure vessels, vehicles, cranes, mining machinery, power plants, bridges, and other structures subjected to dynamic loads, mechanical parts, building structures, and general metal structural components. They can be used in hot-rolled or normalized conditions and are suitable for various structures in cold regions above -40°C. Widely used in engineering, mining machinery, bridges, vehicles, ships, buildings, pressure vessels, special equipment, etc. The "Q" stands for yield strength, and "355" indicates that the yield strength of this steel material is 355 MPa.

 

Q355B ERW Pipe Specification

Material	Q195,Q215,Q235,Q345
MOQ	5 tons for normal size and material
WT	4MM - 20 MM, or As customer's requests
Payment terms	TT deposit + the balanced against BL copy / LC or 100% LC at sight
Trade terms	FOB,C&F,CIF,EXW
Length	6m, 6.8m, 12m, as customer request.
End Treatment	Plain
Lead time	within 7 days from stock with 6m length , 20-25 days for customized pipe according to the qty

 

Applications

• Heavy structures

Construction: high-rise steel frames, bridge webs, large stadium trusses, column spacing can be extended to 6 meters;

Transportation engineering: cross-sea bridge support structures (single span load-bearing up to 2800kN), truck frames.

• Machinery manufacturing industry

Engineering machinery chassis, mining conveyor frames, strong impact resistance;

Precision equipment parts, cold drawing process to ensure dimensional tolerance ≤0.6%.

• Energy and industrial facilities

Oil and gas transmission branch lines (wall thickness is reduced by 2mm when working pressure is 10MPa);

Chemical pipelines, power supports, cathodic protection design life of 50 years.

 

 

 

 

 

 

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