Material
ASTM, BS, En, JIS, GB, API, DIN
Surface Treatment
Bared, Oiled, Color Paint, 3LPE, etc.
Section Shape
Round, Square, Rectangular
Length
5.8~12m or Customized
Production Capacity
250,000 Ton/Year
| Commodity |
ST37 / ST52 / S235 / S275 Mild Steel Hollow Section |
| Outer Diameter |
ERW / HFW: 1/8 - 20 inch |
LSAW / DSAW: 12 - 56 inch |
RHS: 40x20 - 1000x800mm |
SHS: 15x15 - 1000x1000mm |
| Wall Thickness |
0.4 - 16 mm |
6.0 - 40 mm |
1.0 - 30 mm |
0.6 - 30 mm |
| Standard |
GB/T 3091, GB/T 13793, ASTM A252, ASTM A53, ASTM A500, EN 10210, EN 10219, API 5L, DIN 1626/1615, etc. |
| Grade |
SS400, Q235, Q345, Q460, A572 Gr.50, S235, S275, S355, Grade A/B, X42, X52, X60, X70, etc. |
| Inspection |
Chemical Composition, Mechanical Properties, Dimensional, Visual, and Nondestructive Inspection. |
| Application |
Structure, power transmission towers, piling, water/oil/gas pipelines, mechanical industry, municipal projects, etc. |
| Payment Terms |
T/T (30% advance, 70% balance), L/C at sight. |
Our company is a professional manufacturer and designer of welded steel pipe, with more than 20 years of expertise in the industry. We have established a strong reputation for offering high-quality products supported by solid financial strength and business integrity.
Quality Control
We maintain complete detection devices for chemical composition analysis and mechanical properties testing within our specialized laboratory to ensure every product meets rigorous standards.
- Over 20 years of professional industry experience.
- Strong Research & Development capabilities.
- Comprehensive OEM and ODM service support.
- Expert assistance in material and metallurgical selection.
- Classification Society specification interpretation.
- Strict assurance that products meet all requirements.
- Optimized logistics for handling large shipments efficiently.
- Proactive investigation and resolution of any issues.
Frequently Asked Questions
What types of steel pipe sections do you manufacture?
We specialize in Round, Square, and Rectangular (SHS/RHS) mild steel hollow sections produced via ERW, HFW, LSAW, and SSAW processes.
Which international standards do your products comply with?
Our pipes meet various global standards including ASTM A53/A500/A252, EN 10210/10219, API 5L, and GB/T 3091/13793.
What anti-corrosive surface treatments are available?
Options include bared finish, oiled, color painting, 3LPE coating, and other custom anti-corrosive treatments as per project requirements.
How do you ensure the quality of the steel pipes?
We conduct chemical composition analysis, mechanical properties testing, and dimensional inspections, along with nondestructive testing in our own laboratory.
What is the typical delivery timeframe for an order?
Standard delivery is between 20-45 days after receiving the deposit or confirmed L/C, depending on the specific order quantity and requirements.
What are the primary applications for your hollow sections?
They are widely used in structural engineering, power transmission towers, piling, oil/gas pipelines, and mechanical industry projects.
Terra Steel
