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Circle / Square / Rectangle / Ellipse Welded Steel Pipes with Galvanized, Oiled, and Black Surface Finish

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

Detail Information

Product Description

Detail Information

Place of Origin:

China

Certification:

ISO14000

Product Name:

Welded Steel Pipes / Pipe

Brand:

Huaye

Pipe Shape:

Circle / Square / Rectangle / Ellipse

Manufacturing Process:

ERW Welded

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 Irrevocable L/C

Packing:

Nude Packing Or Standard Export Packing

Supply Ability:

10000 MT Per Month

Packaging Details:

nude packing or standard export packin

Supply Ability:

10000MT PER MONTH

Highlight:

stainless steel pipe fittings

welding steel pipe

Product Description

Circle / Square / Rectangle / Ellipse Welded Steel Pipes with Galvanized, Oiled, and Black Surface Finish

1．Product Overview

Circle, square, rectangle, and ellipse welded steel pipes are suitable for construction structures, industrial fabrication, fencing systems, machinery frames, agricultural structures, furniture frames, and general engineering applications.

The product is manufactured by ERW welding technology and can be supplied with galvanized, oiled, or black surface finish. Different pipe profiles support structural, decorative, and fabrication requirements.

2．Technical Solution

The pipe is produced by forming steel strip into the required pipe profile and welding it through ERW processing.

Galvanized surface treatment improves corrosion resistance for outdoor and humid environments. Oiled surface treatment provides temporary anti-rust protection during storage and transportation. Black surface finish is suitable for welding, painting, and further fabrication.

3．Specifications

Parameter	Value
Product Type	ERW Welded Steel Pipe
Pipe Shape	Circle / Square / Rectangle / Ellipse
Steel 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 Range

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	Typical Applications
Construction	Steel structures, supports, handrails, fencing
Industrial Fabrication	Machinery frames and welded assemblies
Agriculture	Greenhouse frames and support structures
Transportation	Vehicle frames and trailer components
Furniture	Table frames, chair frames, decorative tubing
General Engineering	Pipe structures and fabricated steel components

6．Processing

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

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

7．Advantages

Advantage	Description
ERW Welded Process	Supports stable weld seam and dimensional consistency
Multiple Pipe Shapes	Circle, square, rectangle, and ellipse profiles are available
Surface Finish Options	Galvanized, oiled, and black finishes meet different application needs
Wide Size Range	Covers light-duty and structural fabrication requirements
Custom Length	5.8M, 6M, or customized length can be supplied
Export Packing	Nude packing or standard export packing for shipment

8．How to Choose

Requirement	Recommended Option
Outdoor use	Galvanized welded pipe
Temporary anti-rust protection	Oiled welded pipe
Welding and painting	Black welded pipe
Structural framework	Square or rectangle pipe
General pipe structure	Circle pipe
Decorative or visible frame	Ellipse pipe

9．FAQ

Question	Answer
What pipe shapes are available?	Circle, 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 available?	ASTM A53, BS1387, DIN2244, GB/T13793, GB/T3091, GB/T6728, and GB/T6725 are available.
Can the pipe length be customized?	Yes. Standard lengths are 5.8M and 6M, and customized lengths can be supplied.
What packing methods are available?	Nude packing or standard export packing can be supplied.

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products details

Circle / Square / Rectangle / Ellipse Welded Steel Pipes with Galvanized, Oiled, and Black Surface Finish

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