ASTM A500 Cold Formed Hollow Section Square and Rectangular Structure Steel Tube

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Product Description

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Basic Information

Model NO.
YFA-S1123
Material
Carbon Steel
Surface Treatment
Black
Section Shape
Square
Size of Square
20X20--400X400mm
Size of Rectangular
20X40--400X600mm
Length
5.8/6m or Customized
Steel Material
Q195, Q235, Q345
Standard
ASTM A500 Gr.a/B/C
Technique
Hot Rolled, Welded
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Product Description

Structure Steel Tube

Welded Carbon Steel Pipe

Welded Carbon Steel Pipe is manufactured primarily from low carbon steel by welding rolled steel coils or plates using methods like ERW (Electric Resistance Welding) or SAW (Submerged Arc Welding). These pipes are ideal for oil and gas, water transportation, construction, and structural applications due to their high pressure and temperature resistance. They comply with international standards such as ASTM A53, ASTM A106, API 5L, and EN 10219.

Features Galvanized Steel Pipe Square and Rectangular Pipe Spiral Welded Pipe
Welding Methods ERW ERW SAW
Hollow Section Round Square and Rectangular Round
Anti Rust Galvanized Painted or Galvanized 3PE, FBE or Galvanized
Pipe Sizes 21.3mm to 323mm 20*20 to 500*500 219mm to 3000mm
Steel Grade Grade A, B, Q235, S235 Grade A, B, Q235, S235 Grade B, L245, L458
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Specification

Specification Chart
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Packing & Delivery

Steel Pipe Packing
Steel Pipe Delivery

Packing details:

  • OD 219mm and below: Hexagonal seaworthy bundles packed by steel strips, with two nylon slings per bundle.
  • Above OD 219mm: In bulk or according to custom requirements.

Shipment Delivery:

  • 20GP: Max 25 tons, max length 5800mm.
  • 40GP: Max 25 tons, max length 11800mm.
  • Bulk Vessel: Cheap sea freight for quantities over 100 tons.
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Certifications

Product Certifications
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Manufacturing Capability

Our group is a large-scale enterprise integrating production and sales of welded pipes, hot-dip galvanized steel pipes, square and rectangular steel pipes, and more. We operate 13 manufacturing plants with over 300 production lines, 5 CNAS laboratories, and provincial-level technology centers. Our facilities are recognized as national-level "Green Factories" producing "Green Products".

Major Projects: Our steel pipes have been successfully used in national priority projects including international airports, Olympic stadiums, exhibition halls, cross-sea bridges, and major amusement parks.

Project Showcase

Frequently Asked Questions

What steel grades are available for these square pipes?
We primarily use Q195, Q235, and Q345 steel materials, conforming to ASTM A500 Grade A, B, and C standards.
What are the maximum sizes for square and rectangular sections?
Square sections range up to 400x400mm, while rectangular sections can go up to 400x600mm.
How are the pipes protected against rust?
The pipes can be supplied as black steel or oiled to prevent rust. We also offer hot-dip galvanized and painted options for enhanced durability.
What are the standard lengths available?
The standard lengths are 5.8m and 6m, but we can provide customized lengths based on specific project requirements.
What are the container loading limits for export?
A 20GP container can load up to 25 tons with a maximum pipe length of 5.8m. A 40GP container also loads up to 25 tons but accommodates lengths up to 11.8m.
Are your manufacturing processes environmentally friendly?
Yes, four of our plants are recognized as National-Leveled "Green Factories," focusing on sustainable production and green products.

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