5.8M / 6M ASTM A53 BS1387 DIN2244 Galvanized Oiled Black ERW Welded Steel Pipes

5.8M / 6M ASTM A53 BS1387 DIN2244 Galvanized Oiled Black ERW Welded Steel Pipes

1．Product Overview

ERW welded steel pipes are used for construction, structural fabrication, machinery manufacturing, scaffolding, fencing systems, transportation structures, furniture tubing, and general engineering applications.

The product can be supplied in round, square, rectangle, and ellipse profiles. Galvanized surface is suitable for outdoor and humid environments, oiled surface provides temporary rust protection during storage and shipment, and black surface is suitable for welding, painting, and secondary processing.

2．Technical Solution

The pipe is produced by forming steel strip into the required pipe profile and welding it through ERW technology.

The ERW process supports stable weld seam formation and dimensional consistency for structural and industrial applications.

Different surface treatments can be selected according to use conditions. Galvanized coating improves corrosion resistance. Oiled surface helps protect the pipe during transportation and storage. Black surface is suitable for further fabrication, welding, or coating.

3．Specifications

4．Application

This product is suitable for structural frames, handrails, supports, machinery frames, welded structures, trailer frames, vehicle structures, greenhouse systems, fencing systems, decorative tubing, furniture structures, and general steel pipe engineering.

Round pipes are commonly used for general engineering and pipe structures.

Square and rectangular pipes are suitable for structural frames, supports, and load-bearing fabrication.

Ellipse pipes are suitable for decorative frameworks and special profile designs.

5．Processing

The welded steel pipes support cutting, welding, bending, punching, drilling, galvanizing, painting, bundling, and secondary fabrication.

Customized pipe length, surface finish, and packing method can be supplied according to project requirements.

6．Advantages

• Round, square, rectangle, and ellipse pipe profiles are available for different design and fabrication needs.
• ERW welding supports stable weld seam consistency and continuous production.
• Galvanized, oiled, and black surface finishes support different corrosion protection and processing requirements.
• Standard 5.8M and 6M lengths are suitable for common container loading and project installation.
• Customized lengths can be supplied according to project requirements.
• The product is suitable for construction, machinery, transportation, agriculture, furniture, and infrastructure applications.

7．How to Choose

• Choose galvanized welded steel pipe for outdoor applications, humid environments, and corrosion protection requirements.
• Choose black welded steel pipe when the pipe will be welded, painted, or further fabricated.
• Choose oiled welded steel pipe when temporary rust prevention is required during storage and shipment.
• Choose square or rectangle pipe for structural fabrication, frames, and supports.
• Choose round pipe for general engineering and pipe structure applications.
• Choose ellipse pipe for decorative frameworks or special structural designs.
• Confirm pipe shape, size, thickness, length, surface treatment, and packing method before production.

8．FAQ

Q1．What pipe shapes are available

Round, square, rectangle, and ellipse welded steel pipes are available.

Q2．What surface treatments can be supplied

Galvanized, oiled, and black surface finishes are available.

Q3．What standards are supported

ASTM A53, BS1387, DIN2244, GB/T13793, GB/T3091, GB/T6728, and GB/T6725 are available.

Q4．Can customized length be supplied

Yes. Standard lengths are 5.8M and 6M, and customized lengths are available.

Q5．What industries commonly use these pipes

Construction, machinery, transportation, agriculture, furniture, and general engineering industries commonly use these products.