Round Galvanized Welded Steel Pipes Q195 Q215 Q235 SPHC SPCC for Structural and General Engineering Use

1．Product Overview

Round galvanized welded steel pipes are used for construction structures, fencing, handrails, greenhouse frames, machinery supports, transportation components, furniture frames, and general engineering applications.

The pipe is manufactured from Q195, Q215, Q235, SPHC, SPCC, 08Yu, and 08Al steel grades. ERW welding provides stable seam quality and dimensional consistency, while galvanized surface treatment improves corrosion resistance for outdoor or humid environments.

2．Technical Solution

The pipe is produced by forming steel strip into a round pipe shape and welding it continuously through the ERW process.

Galvanized surface is suitable for outdoor applications and humid environments. Oiled surface provides temporary rust protection during storage and transportation. Black surface is suitable for welding, painting, and secondary fabrication.

Different steel grades can be selected according to strength, forming, welding, and fabrication requirements.

3．Specifications

4．Application

This product is suitable for construction handrails, supports, fencing systems, greenhouse frames, support tubes, machinery frames, welded assemblies, trailer components, vehicle parts, tubular furniture, pipe structures, and fabricated steel components.

It is commonly used where round pipe geometry, weld seam consistency, and corrosion protection are required for structural or general engineering use.

5．Processing

The pipes are suitable for cutting, welding, bending, punching, drilling, galvanizing, painting, bundling, and general fabrication.

Customized lengths can be supplied according to customer drawings or project requirements.

6．Advantages

• ERW welding supports stable weld seam quality and dimensional consistency.
• Multiple steel grades are available for different forming and structural requirements.
• Galvanized surface improves corrosion resistance for outdoor applications.
• Oiled surface supports temporary rust protection during storage and transportation.
• Black surface is suitable for welding, painting, and further fabrication.
• Standard export packing supports long-distance shipment and container loading.

7．How to Choose

• Choose galvanized welded pipe for outdoor use and humid environments.
• Choose oiled welded pipe when temporary anti-rust protection is required.
• Choose black welded pipe for fabrication, welding, or painting.
• Choose Q235 for general structural use.
• Choose Q195 or Q215 for light forming applications.
• Choose SPHC, SPCC, 08Yu, or 08Al when smoother forming or fabrication performance is required.
• Confirm pipe diameter, wall thickness, length, surface treatment, steel grade, and packing method before production.

8．FAQ

Q1．What pipe shape is available for this product

This product focuses on round welded steel pipes.

Q2．What steel grades can be supplied

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

Q3．What surface treatments are available

Galvanized, oiled, and black surface finishes are available.

Q4．Can the length be customized

Yes. Length can be supplied according to customer requirements.

Q5．What are the main applications

The product is used for construction, fencing, greenhouse frames, furniture, machinery frames, transportation components, and general engineering.