Circle and Ellipse ERW Welded Steel Pipes Q195 Q215 Q235 SPHC SPCC for Structural and Fabrication Use

1．Product Overview

Circle and ellipse welded steel pipes are used for construction structures, furniture frames, light fabrication, machinery components, agricultural structures, transportation parts, and general engineering applications.

The product is made from Q195, Q215, Q235, SPHC, SPCC, 08Yu, and 08Al steel grades. Circle pipes are suitable for structural and general engineering use, while ellipse pipes are often selected for decorative frames, furniture parts, and shaped steel structures.

2．Technical Solution

The pipe is produced by ERW welding technology, which supports stable weld seam quality, consistent wall thickness, and efficient production for different pipe profiles.

Circle pipe thickness ranges from 0.5mm to 3.0mm. Ellipse pipe thickness ranges from 0.8mm to 1.5mm. The length tolerance is controlled at +50mm, supporting downstream cutting, welding, bending, and assembly operations.

Different steel grades can be selected according to forming, welding, surface quality, and structural requirements.

3．Specifications

4．Application

This product is suitable for construction handrails, supports, light steel structures, chair frames, table frames, decorative tubing, welded frames, light machinery structures, greenhouse frames, agricultural supports, light vehicle components, trailer parts, pipe structures, and fabricated steel parts.

Circle pipes are commonly used for general structural processing and engineering systems.

Ellipse pipes are suitable for applications requiring shaped profiles and improved visual appearance.

5．Processing

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

Circle pipes are suitable for general pipe structures and support systems. Ellipse pipes are suitable for furniture, decorative tubing, and visible frame components.

6．Advantages

• Multiple steel grades support different fabrication needs, including Q195, Q215, Q235, SPHC, SPCC, 08Yu, and 08Al.
• ERW welded processing provides stable weld seam quality and dimensional consistency.
• Circle and ellipse profiles support both structural and decorative applications.
• Controlled thickness ranges support light-duty and medium-duty fabrication.
• Standard export packing is suitable for long-distance shipment.
• The product supports cutting, welding, bending, punching, and general steel fabrication.

7．How to Choose

• Choose Q195 or Q215 for light fabrication and forming applications.
• Choose Q235 for general structural use requiring stronger load performance.
• Choose SPCC or SPHC when surface quality or forming performance is important.
• Choose 08Yu or 08Al for applications requiring improved forming and fabrication performance.
• Choose circle pipe for construction supports, handrails, and general engineering.
• Choose ellipse pipe for furniture, decorative structures, and visible frame applications.
• Confirm pipe size, wall thickness, steel grade, surface treatment, length, and packing method before production.

8．FAQ

Q1．What pipe shapes are available

Circle and ellipse welded steel pipes are available.

Q2．What steel grades can be supplied

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

Q3．What is the circle pipe thickness range

Circle pipe thickness is 0.5–3.0mm.

Q4．What is the ellipse pipe thickness range

Ellipse pipe thickness is 0.8–1.5mm.

Q5．Can the pipes be used for fabrication

Yes. They are suitable for cutting, welding, bending, punching, polishing, and general steel fabrication.