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Round, Square, Rectangle Galvanized or Oiled ERW Welded Steel Pipe / Pipes

Brand Name:	Huaye
MOQ:	50MT
Delivery Time:	45 days
Payment Terms:	T/T or L/C

Detail Information

Product Description

Detail Information

Place of Origin:

China

Certification:

ISO14000

Product Name:

Welded Steel Pipe / Pipes

Brand:

Huaye

Manufacturing Process:

ERW Welded

Pipe Shape:

Round / Square / Rectangle / Ellipse

Steel Standard:

ASTM A53 / BS1387 / DIN2244 / GB/T13793 / GB/T3091 / GB/T6728 / GB/T6725

Surface Treatment:

Galvanized / Oiled / Black

Length:

5.8M / 6M Or Customized

Length Tolerance:

+50mm

MOQ:

50 MT Per Size

Delivery Time:

45 Days

Payment Terms:

T/T Or L/C

Packing:

Standard Export Packing

Supply Ability:

10000 MT

Packaging Details:

Standard export packing

Supply Ability:

10000MT

Highlight:

welded stainless steel pipe

welding steel pipe

Product Description

Round, Square, Rectangle Galvanized or Oiled ERW Welded Steel Pipe / Pipes

1．Product Overview

ERW welded steel pipes are widely used for structural fabrication, construction frameworks, machinery manufacturing, fencing systems, industrial engineering, and transportation applications. Multiple pipe profiles including round, square, rectangle, and ellipse shapes support different installation and fabrication requirements.

The pipes are available with galvanized, oiled, or black surface finish for indoor and outdoor applications requiring corrosion protection and fabrication flexibility.

2．Technical Solution

The steel strip is continuously formed and welded through ERW processing technology to achieve stable weld seams and dimensional consistency. Galvanized surface treatment improves corrosion resistance for outdoor and humid environments. Oiled surface finish provides temporary anti-rust protection during transportation and storage. Black steel pipe is suitable for welding, coating, and secondary fabrication processing.

3．Specifications

Parameter	Value
Product Type	ERW Welded Steel Pipe
Pipe Shape	Round / 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	Standard export packing

4．Size Specifications

Pipe Type	Size Range	Thickness Range	Size Tolerance	Length Tolerance
Round Pipe	Φ13–Φ25.4mm	0.5–1.5mm	±0.10mm	+50mm
Round Pipe	Φ18–Φ25.4mm	1.5–2.0mm	±0.10mm	+50mm
Round Pipe	Φ25.4–Φ34mm	0.7–2.0mm	±0.10mm	+50mm
Round Pipe	Φ34–Φ50.8mm	0.8–3.0mm	±0.12mm	+50mm
Round 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

5．Application

Industry	Application
Construction	Structural frames, supports, handrails
Industrial Fabrication	Machinery frames and steel structures
Transportation	Vehicle structures and trailers
Agriculture	Greenhouse systems and fencing
Furniture	Decorative steel tubing
Infrastructure	General engineering applications

6．Processing

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

Customized dimensions and pipe lengths are available according to project requirements.

7．Advantages

Advantage	Description
Multiple Pipe Shapes	Round, square, rectangle, and ellipse profiles available
Stable ERW Welding	Consistent weld seam and dimensional accuracy
Corrosion Protection	Galvanized and oiled surface finishes available
Flexible Supply	Standard and customized lengths supported
Wide Application Range	Suitable for structural and industrial use
Export Packaging	Suitable for container and bulk shipment

8．How to Choose

Requirement	Recommended Option
Outdoor environment	Galvanized welded steel pipe
Indoor fabrication	Black welded steel pipe
Temporary anti-rust protection	Oiled welded steel pipe
Structural framework	Square or rectangle pipe
General engineering	Round pipe
Decorative structure	Ellipse pipe

9．FAQ

Question	Answer
What pipe shapes are available?	Round, square, rectangle, and ellipse welded steel pipes are available.
What surface finishes 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 supported.
Can customized length be produced?	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 infrastructure industries commonly use these products.

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products details

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