En10219/En10210 Material S235jrh/S355jrh or Equal Cold Formed and Hot Formed 40X40, , 200X200, 40X80, 200X100 Steel Hollow Sections

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Product Description

Basic Information
Material
Carbon Steel
Surface Treatment
Galvanized
Section Shape
Square/Rectangular
Commodity
Square/Rectangular Hollow Section Tubes
Square Tube Size
20X20mm-500X500mm
Rectangular Size
10X20mm-400X600mm
Wall Thickness
1.0-30.0mm
Length
6.0m, 5.8m, 1-12.0m
Steel Grade
S235JR/S355; ASTM A500; STK400/STK500
Zinc Coating
40GSM-600GSM
HS Code
7306610000
Origin
China
Product Description
EN10219/EN10210 Material S235JRH/S355JRH Steel Hollow Sections

Our galvanized steel square and rectangular pipes are manufactured using cold-formed and hot-formed processes to ensure maximum structural integrity and durability. These sections are ideal for a wide range of industrial and construction applications.

Technical Specifications
Commodity Galvanized Steel Square / Rectangular pipe and tube
Standard EN10025, EN10219, ASTM A500 (Chinese material: Q195, Q235, Q345)
Surface Black, or Galvanized and Oiled to prevent rust
Usage Steel construction, mechanical manufacturing, automobile, shipbuilding, and furniture
Packing Bulk (Large OD), Steel strips (Small OD), or custom requirements
Definition & Usage

Definition: A tube is a closed shape used to perform structural functions. The shape can be round, square, or rectangular, designed for specific mechanical applications. Square hollow sections (SHS) are particularly valued for their strength-to-weight ratio.

  • Steel Structure and Civil Engineering
  • Mechanical Manufacturing & Heavy Equipment
  • Shipbuilding and Maritime Infrastructure
  • Automobile Frame Manufacturing
  • Furniture Design and Crash Barriers
Production Showcase
Steel Hollow Sections Display
Galvanized Pipe Storage
Square Tube Production Line
Rectangular Pipe Inventory
Specification & Wall Thickness Range
Section Type Size Range (mm) Wall Thickness (mm)
Small Square Tube 19*19 to 35*35 1.0 - 3.0
Medium Square Tube 40*40 to 100*100 1.2 - 11.75
Large Square Tube 120*120 to 500*500 2.5 - 30.0
Small Rectangular 20*30 to 40*80 1.0 - 5.0
Large Rectangular 100*200 to 400*600 2.5 - 30.0
Quality Assurance & Certificates

Our production facilities maintain the highest quality standards, confirmed by world-class certifications:

  • API 5L / 5CT Certification
  • ISO9001 Quality Management System
  • ISO14001 Environmental Management
  • ISO18001 Occupational Health & Safety
  • EN10219, FPC and UL / FM Quality Systems
Quality Certificates
Frequently Asked Questions
What materials are available for these hollow sections?
The primary material used is Carbon Steel, with grades including S235JR, S355, ASTM A500, and Chinese standards like Q195, Q235, and Q345.
What are the available surface treatments?
We offer Black (natural finish), Galvanized (Zinc coating from 40GSM up to 600GSM), and Oiled surfaces to prevent rust and corrosion.
Can you customize the length and wall thickness?
Yes. While standard lengths are 5.8m and 6.0m, we can provide lengths ranging from 1 to 12 meters. Wall thicknesses range from 1.0mm up to 30.0mm depending on the profile size.
In which industries are these tubes commonly used?
These square and rectangular tubes are widely used in construction, machinery manufacturing, furniture production, shipbuilding, automobile manufacturing, and as highway crash barriers.
How are the products typically packed for shipment?
Small diameter tubes are packed in bundles using steel strips. Larger diameter sections are typically shipped in bulk or as per specific customer requirements.
What international standards do your products meet?
Our products comply with several global standards, including EN10219, EN10210, ASTM A500, BS EN10219, and GB/T6728.

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