Q235B Steel Spiral Pipe

Q235B Steel Spiral Pipe is a type of spiral submerged arc welded(SSAW)pipe manufactured from Q235B carbon steel,one of the most widely used general structural steel grades in China and international engineering projects.By forming hot‑rolled Q235B steel strips into a helical shape and welding with double‑sided submerged arc technology,this pipe offers stable mechanical properties,good weldability,and cost‑effective performance for medium‑pressure and general structural applications.

Key Features

Made from Q235B carbon steel,with reliable tensile strength,ductility and impact resistance

Helical forming design ensures uniform stress distribution and strong pressure resistance

High‑quality submerged arc welding provides dense,defect‑free welds

Good processing performance:easy to cut,bend,flange and install

Economical and readily available material for large‑scale engineering

Can be supplied with anti‑corrosion coating,painting or beveling as required

Main Specifications

Outer Diameter:φ219mm–φ3000mm

Wall Thickness:5mm–25mm

Standard Length:6m,12m(custom lengths available)

Executive Standard:GB/T 9711,GB/T 3091,SY/T 5037

Application Pressure:Suitable for medium‑low pressure fluid and structural use

Typical Applications

Municipal water supply and drainage pipelines

Sewage disposal and stormwater projects

Bridge,wharf and building foundation piling

Structural pipe columns and support tubes

Mud,slurry and low‑pressure liquid transportation

Agricultural irrigation and industrial water pipelines