Q235B 219.1*12.7mm Seamless Steel Pipe/ Welded Steel Pipe

Nov 25, 2025

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Q235B SSAW (Spiral Submerged Arc Welded) Welded Pipe is manufactured from high-quality Q235B steel through spiral crimping and submerged arc welding. The material features excellent strength, toughness, and processing performance, while the spiral welding structure provides greater pressure-bearing capacity and structural stability.

 

These pipes exhibit high temperature resistance, stable deformation performance, wear resistance, and corrosion resistance, making them suitable for various demanding engineering environments.

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Because of their reliable quality and competitive pricing, Q235B SSAW welded pipes are widely recognized and favored by customers across global markets.

 

Our pipes feature clean, smooth-cut ends, premium coating options, and uniform surface treatment. Excellent spraying and coating processes ensure a refined appearance and long-term durability.

 

Product Description

 

Specifications

Item Range / Details
Outside Diameter (OD) 219.1 mm – 2540 mm
Length 6 m – 22 m
Wall Thickness (WT) 3.2 mm – 25.4 mm
Type SSAW (Spiral Submerged Arc Welded Pipe)
Ends Plain End / Beveled End / Threaded End

 

Surface Coating Options

 

Available according to customer requirement:

Fusion Bonded Epoxy (FBE)

Coal Tar Epoxy

3PE Anti-corrosion Coating

Varnish Coating

Bitumen Coating

Black Oil Coating

These coating systems significantly improve corrosion resistance for use in seawater, buried pipelines, and aggressive industrial environments.

 

Packing Methods

 

Bundled with steel straps

In Bulk

Plastic Caps Plugged

Waterproof Paper Wrapped

Customized packaging is available upon request.

 

Tests & Inspection

 

Every pipe is tested according to international standards to ensure reliable quality.

Non-Destructive Testing (NDT)

X-ray Test

Ultrasonic Test (UT)

Radiographic Test (RT)

Other Tests

Hydrostatic Pressure Test

Impact Test

Mechanical Properties Test

Chemical Composition Test

These strict quality control procedures ensure excellent weld integrity, structural performance, and long-term reliability.

 

Applications

 

Q235B SSAW Welded Pipe is widely used in:

Shipping and marine construction

Water conservancy and hydropower projects

Building and structural engineering

Piling, foundation reinforcement

Long-distance liquid and gas transportation pipelines

 

Its large diameter, strong load-bearing capacity, and corrosion-resistant coating systems make it an ideal material for heavy-duty and long-span engineering projects.

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