08Yu 08Al Round and Square ERW Welded Steel Pipes with Galvanized Oiled and Black Surface

1．Product Overview

08Yu and 08Al round and square welded steel pipes are used for steel structures, machinery frames, furniture frames, greenhouse systems, fencing, support structures, and general engineering applications.

The product is manufactured by ERW welding technology using carbon steel grades such as Q195, Q215, Q235, SPHC, SPCC, 08Yu, and 08Al. Round pipes are suitable for general engineering and support use, while square pipes are commonly used for structural frameworks and fabricated assemblies.

2．Technical Solution

The pipe is produced by forming steel strip into round or square profile and welding it continuously through the ERW process.

Galvanized surface treatment improves corrosion resistance for outdoor and humid environments. Oiled surface helps provide temporary rust protection during storage and transportation. Black surface is suitable for welding, painting, polishing, and further fabrication.

08Yu and 08Al grades can be selected when the project requires improved forming and fabrication performance.

3．Specifications

4．Application

This product is suitable for construction supports, steel structures, handrails, machinery frames, welded assemblies, table frames, shelving systems, chair frames, greenhouse frames, agricultural supports, trailer components, light vehicle structures, and general pipe frameworks.

Round welded pipes are commonly used for general engineering and support systems.

Square welded pipes are suitable for steel structures, furniture frames, machinery frames, and fabrication projects requiring flat sides for connection or assembly.

5．Processing

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

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

6．Advantages

• ERW welded structure supports stable weld seam quality and dimensional consistency.
• Q195, Q215, Q235, SPHC, SPCC, 08Yu, and 08Al grades are available for different forming and structural requirements.
• Galvanized, oiled, and black surface finishes support different storage, processing, and application environments.
• Round and square profiles cover both general engineering and structural fabrication applications.
• The product is suitable for welding, bending, machining, painting, and secondary processing.
• Standard export packing supports long-distance shipment and container loading.

7．How to Choose

• Choose galvanized welded pipe for outdoor applications and humid environments.
• Choose oiled welded pipe when temporary rust protection is required during storage or shipment.
• Choose black welded pipe for welding, painting, or further fabrication.
• Choose square welded pipe for structural supports, frames, and fabricated assemblies.
• Choose round welded pipe for general engineering, support tubes, and pipe structures.
• Choose SPCC, 08Yu, or 08Al grades when forming and bending performance is required.
• Confirm pipe shape, size, wall thickness, steel grade, surface finish, length, and packing method before production.

8．FAQ

Q1．What pipe shapes are available

Round and square welded steel pipes are available.

Q2．What surface treatments are available

Galvanized, oiled, and black surface finishes are available.

Q3．What steel grades can be supplied

Q195, Q215, Q235, SPHC, SPCC, 08Yu, and 08Al are available.

Q4．Can customized pipe length be supplied

Yes. Pipe length can be customized according to customer requirements.

Q5．What applications are suitable for square pipes

Square pipes are widely used for steel structures, furniture frames, machinery frames, supports, and fabrication projects.