Round / Square / Rectangle / Ellipse ERW Welded Steel Pipes with Galvanized and Black Surface Finish

Round / Square / Rectangle / Ellipse ERW Welded Steel Pipes with Galvanized and Black Surface Finish

1．Product Overview

ERW welded steel pipes are widely used in structural construction, industrial fabrication, transportation systems, and general engineering applications. The product is available in round, square, rectangular, and ellipse profiles to support different installation and fabrication requirements.

The pipes are manufactured using electric resistance welding technology, providing stable dimensional consistency and continuous production efficiency. Galvanized, black, or oiled surface finishes are available according to corrosion protection and application requirements.

2．Technical Solution

The steel strip is formed into pipe shape through roll forming equipment and welded by ERW processing technology. After welding, the pipe surface can be supplied in galvanized, black, or oiled finish.

Galvanized surface treatment improves corrosion resistance for outdoor and humid environments. Black steel pipes are commonly used for structural fabrication and industrial applications where additional coating or painting may be applied later.

Different pipe shapes are available to support load-bearing structures, framework fabrication, decorative applications, and mechanical systems.

3．Specifications

4．Size Range

5．Application

These ERW welded steel pipes are widely used in steel structure buildings, scaffolding systems, fencing, machinery frames, furniture fabrication, agricultural systems, transportation structures, and industrial piping applications.

Galvanized pipes are commonly selected for outdoor applications and humid environments, while black pipes are suitable for fabrication, coating, and general engineering use.

6．Processing

The product supports cutting, welding, punching, bending, galvanizing, and fabrication processing.

Customized pipe length and different surface finishes can be supplied according to project requirements.

Bundles can be packed for container shipment or bulk transportation.

7．Advantages

• ERW manufacturing provides stable dimensional accuracy and efficient production consistency.
• Multiple pipe profiles support structural, industrial, decorative, and mechanical applications.
• Galvanized coating improves corrosion resistance for outdoor environments.
• Black and oiled surfaces are suitable for fabrication and further processing.
• Different thickness ranges are available for light-duty and heavy-duty applications.
• The product supports welding, cutting, and secondary fabrication processing.

8．How to Choose

• Choose galvanized pipes for outdoor construction and humid environments.
• Choose black steel pipes for fabrication, painting, or industrial applications.
• Select square or rectangular pipes for structural frames and load-bearing applications.
• Choose round pipes for piping systems, fencing, and general engineering use.
• Confirm pipe size, thickness, length, and surface finish according to project requirements before production.

9．FAQ

Q1．What pipe shapes are available
Round, square, rectangular, and ellipse pipes are available.

Q2．What surface finishes are available
Galvanized, black, and oiled surface finishes are available.

Q3．What standards are supported
The product can be supplied according to ASTM A53, BS1387, DIN2244, GB/T13793, GB/T3091, GB/T6725, and GB/T6728.

Q4．Can customized pipe lengths be produced
Yes. Standard lengths are 5.8M and 6M, and customized lengths can be supplied according to project requirements.

Q5．What industries commonly use ERW welded steel pipes
These pipes are commonly used in construction, industrial fabrication, machinery, agriculture, transportation, and structural engineering applications.