| Brand Name: | Huaye |
| MOQ: | 50MT |
| Delivery Time: | 45 days |
| Payment Terms: | T/T or irrevocable L/C |
5.8M / 6M ASTM A53, BS1387, DIN2244 Galvanized / Oiled / Black Welded Steel Pipes
1.Product Overview
ERW welded steel pipes are widely used in construction, structural fabrication, machinery manufacturing, scaffolding, fencing systems, transportation structures, and industrial engineering applications. The product supports round, square, rectangle, and ellipse profiles for different fabrication and installation requirements.
The welded steel pipe can be supplied with galvanized, oiled, or black surface finish according to corrosion resistance and processing requirements.
2.Technical Solution
The steel strip is formed into pipe profiles and continuously welded through ERW processing technology. Stable weld seam formation and dimensional consistency support structural fabrication and general engineering applications.
Galvanized coating improves corrosion resistance for outdoor and humid environments. Oiled surface treatment provides temporary anti-rust protection during storage and shipment. Black surface finish supports welding, painting, and secondary processing.
3.Specifications
| Parameter | Value |
|---|---|
| Product Type | ERW Welded Steel Pipe |
| Pipe Shape | Circle / Square / Rectangle / Ellipse |
| Standard | ASTM A53 / BS1387 / DIN2244 / GB/T13793 / GB/T3091 / GB/T6728 / GB/T6725 |
| Surface Finish | Galvanized / Oiled / Black |
| Length | 5.8M / 6M or customized |
| Length Tolerance | +50mm |
| MOQ | 50 MT per size |
| Packing | Nude packing or standard export packing |
4.Size Specifications
| Pipe Type | Size Range | Thickness Range | Size Tolerance | Length Tolerance |
|---|---|---|---|---|
| Circle Pipe | Φ13–Φ25.4mm | 0.5–1.5mm | ±0.10mm | +50mm |
| Circle Pipe | Φ18–Φ25.4mm | 1.5–2.0mm | ±0.10mm | +50mm |
| Circle Pipe | Φ25.4–Φ34mm | 0.7–2.0mm | ±0.10mm | +50mm |
| Circle Pipe | Φ34–Φ50.8mm | 0.8–3.0mm | ±0.12mm | +50mm |
| Circle Pipe | Φ50.8–Φ79.2mm | 1.0–3.0mm | ±0.12mm | +50mm |
| Square Pipe | 16×16–25.4×25.4mm | 0.7–2.0mm | ±0.15mm | +50mm |
| Square Pipe | 30×30–50×50mm | 1.0–3.0mm | ±0.20mm | +50mm |
| Square Pipe | 60×60mm | 0.7–2.0mm | ±0.15mm | +50mm |
| Square Pipe | 100×100–200×200mm | 3.0–6.0mm | ±0.60mm | +50mm |
| Rectangle Pipe | 10×20–20×40mm | 0.8–1.5mm | ±0.20mm | +50mm |
| Rectangle Pipe | 20×40–30×50mm | 1.0–2.5mm | ±0.25mm | +50mm |
| Rectangle Pipe | 25×70–38.1×76.2mm | 1.2–2.5mm | ±0.25mm | +50mm |
| Rectangle Pipe | 30×60–40×80mm | 1.2–2.5mm | ±0.30mm | +50mm |
| Rectangle Pipe | 120×60–150×250mm | 3.0–6.0mm | ±0.60mm | +50mm |
| Ellipse Pipe | Φ10×20–Φ20×40mm | 0.8–1.5mm | ±0.20mm | +50mm |
| Ellipse Pipe | Φ30×60–Φ20×100mm | 1.2–2.5mm | ±0.30mm | +50mm |
5.Application
| Industry | Application |
|---|---|
| Construction | Structural frames, handrails, supports |
| Industrial Fabrication | Machinery frames and welded structures |
| Transportation | Trailer frames and vehicle structures |
| Agriculture | Greenhouse and fencing systems |
| Furniture | Decorative and furniture tubing |
| Infrastructure | General steel pipe engineering |
6.Processing
The welded steel pipes support cutting, welding, bending, punching, drilling, galvanizing, and painting processes.
Customized pipe length and surface finish can be supplied according to project requirements.
7.Advantages
| Advantage | Description |
|---|---|
| Multiple Pipe Profiles | Circle, square, rectangle, and ellipse shapes available |
| ERW Welding Process | Stable weld seam and dimensional consistency |
| Surface Finish Options | Galvanized, oiled, and black finishes available |
| Flexible Length Supply | 5.8M, 6M, or customized length |
| Wide Size Coverage | Suitable for light-duty and structural applications |
| Export Packing | Suitable for container and bulk shipment |
8.How to Choose
| Requirement | Recommended Type |
|---|---|
| Outdoor application | Galvanized welded steel pipe |
| Indoor fabrication | Black welded steel pipe |
| Temporary rust prevention | Oiled welded steel pipe |
| Structural fabrication | Square or rectangle pipe |
| General engineering | Round pipe |
| Decorative framework | Ellipse pipe |
9.FAQ
| Question | Answer |
|---|---|
| What pipe shapes are available? | Round, square, rectangle, and ellipse welded steel pipes are available. |
| What surface treatments can be supplied? | Galvanized, oiled, and black surface finishes are available. |
| What standards are supported? | ASTM A53, BS1387, DIN2244, GB/T13793, GB/T3091, GB/T6728, and GB/T6725 are available. |
| Can customized length be supplied? | Yes. Standard lengths are 5.8M and 6M, and customized lengths are available. |
| What industries commonly use these pipes? | Construction, machinery, transportation, agriculture, furniture, and general engineering industries commonly use these products. |