Rectangular Pipe Cold Rolled Pre Galvanized Welded Square /
Rectangular Steel Pipe/Tube/Hollow Section
High-quality cold rolled pre-galvanized welded square and
rectangular steel pipes, tubes, and hollow sections designed for
structural applications across various industries.
Product Specifications
| Product Type | Size Range | Thickness | Length |
|---|
| Round Pipe | OD10mm - 1000mm | 4mm - 30mm | Custom Lengths |
| Square Pipe | 10mm×10mm - 1000mm×1000mm | 1.2mm - 30.0mm | 6M Standard |
| Rectangle Pipe | 20mm×40mm - 400mm×700mm | 1.2mm - 30.0mm | 6M Standard |
| L/T/Z Window Section | 28mm/38mm | 0.5mm - 1.5mm | Custom Lengths |
Technical Details
- Materials: A106B, SS400, S235JR, S275JR, S355JR, 1020, 1045, 4140, etc.
- Surface Treatment: Black, galvanized, or painted
- Packing: Export standard packing (bundles, seaworthy package, shipped in
container)
- Delivery Port: Shanghai, China
- Lead Time: Within 30 days after receiving original L/C or deposit
- MOQ: 10 Tons per size
- Production Capacity: 10,000MT per month
Applications
Widely used in structural applications, motorbike and automobile
manufacturing, ornamental uses, medical equipment, sport equipment,
and home furniture.
Main Markets
Europe, America, Africa, Southeast Asia
Standard Size Specifications
Regular Stock Sizes
| Size (Outer Dimensions) | Wall Thickness | Length |
|---|
| 20×20 / 25×25 | 1.2mm - 2.75mm | 6M Stock (Custom Available) |
| 30×30 / 20×40 / 30×40 / 25×40 | 1.2mm - 3.5mm | 6M Stock (Custom Available) |
| 40×40 / 50×50 / 30×50 / 25×50 / 30×60 / 40×60 | 1.2mm - 4.75mm | 6M Stock (Custom Available) |
| 60×60 / 50×70 / 40×80 / 40×50 | 1.2mm - 5.75mm | 6M Stock (Custom Available) |
| 70×70 / 60×80 / 50×80 / 100×40 / 50×90 | 1.5mm - 5.75mm | 6M Stock (Custom Available) |
| 75×75 / 80×80 / 90×90 / 60×100 / 50×100 / 120×60 / 100×80 / 60×90 | 1.5mm - 7.75mm | 6M Stock (Custom Available) |
| 100×100 / 120×80 | 1.8mm - 7.75mm | 6M Stock (Custom Available) |
| 120×120 / 130×130 / 180×80 / 160×80 / 100×150 / 140×80 / 140×60 | 2.5mm - 10.0mm | 6M Stock (Custom Available) |
| 140×140 / 150×150 / 100×180 / 200×100 | 2.5mm - 10.0mm | 6M Stock (Custom Available) |
| 160×160 / 180×180 / 200×150 | 3.5mm - 11.0mm | 6M Stock (Custom Available) |
| 200×200 / 250×150 / 100×250 | 3.5mm - 11.0mm | 6M Stock (Custom Available) |
| 250×250 / 250×200 / 300×150 / 300×200 | 4.5mm - 15.0mm | 6M Stock (Custom Available) |
| 300×300 / 350×200 / 350×250 / 300×150 | 4.5mm - 15.0mm | 6M Stock (Custom Available) |
| 350×350 / 350×300 / 450×250 / 400×300 / 500×200 | 4.5mm - 15.75mm | 6M Stock (Custom Available) |
| 400×400 / 280×280 / 450×300 / 450×200 / 400×350 / 400×250 / 500×250
/ 500×300 | 4.5mm - 15.75mm | 6M Stock (Custom Available) |
Product Gallery
Company Overview
We are a comprehensive steel pipe enterprise integrating
production, processing, and sales. Our main business includes steel
tubes, square tubes, seamless square tubes, thick wall square
tubes, cold drawn square tubes, right angle square tubes, hot dip
galvanized square tubes, stainless steel square tubes, alloy square
tubes, and custom non-standard seamless square tubes.
Product Range
We offer comprehensive square tube and rectangular tube
specifications with full size ranges from 20×20mm to 800×800mm
square tubes and 20×30mm to 400×800mm rectangular tubes, with
thickness from 0.6mm to 28mm, totaling over 2,800 specifications.
Manufacturing Partnerships
We maintain excellent cooperative relationships with major steel
pipe factories including Tianjin Seamless Steel Pipe Factory,
Baotou Steel Pipe Factory, Chengdu Steel Pipe Factory, Wuxi Steel
Pipe Factory, and Baosteel Steel Pipe Factory. Our company operates
two large pipe factories: a square pipe factory and a straight seam
welding pipe factory.
Custom Manufacturing
We specialize in custom processing business including various
patterns, multilateral varieties, iron pipes, fence pipes, armrest
pipes, heating pipes, decoration pipes, and all types of
special-shaped steel pipes with no minimum quantity restrictions.
Industry Applications
Our products serve multiple industries including steel structures,
large venues, exhibition centers, lifting machinery, shipbuilding,
storage shelves, decoration, transportation facilities, airport
construction, railway vehicles, bridge support, mine support,
three-dimensional garages, outdoor advertising, fitness equipment,
wind power equipment, and vehicle manufacturing.

Company Advantages
Competitive Pricing
We implement low-cost market competition through strategic
partnerships with steel manufacturers, advanced management modes,
and strong financial foundation to provide the most competitive
prices while building market share.
Quality Assurance
Professional quality control from procurement to sales with
continuous tracking of steel mill quality. We provide responsible
acceptance of quality objections and resolve issues in the shortest
time with satisfactory results.
Sincere Service
24-hour distribution service with multiple transportation options.
Complete steel product portfolio with simplified ordering process
through telephone, telex, internet, and remote ordering. Our
foundation is "Unity, integrity" with "Advance" as our spirit.
Welcome every old and new customer to come to negotiate and
communicate with us.