High-Strength Carbon Steel Square Tube | Hollow Structural Section (HSS) Mild Steel Square Pipe for Construction and Engineering
Classification :
PRODUCT DETAILS
Premium Carbon Steel Square Tubing – Robust Hollow Structural Sections for Engineering
Our carbon steel square tubes (HSS) are manufactured using advanced longitudinal welding and cold-forming technologies. Designed for excellent structural integrity, uniform wall thickness, and high torsional resistance, these square pipes meet strict international standards (ASTM, EN, JIS, GB) and are widely used in heavy construction, machinery manufacturing, and industrial fabrication.
Technical Specifications
| Parameter | Standard Specifications |
|---|---|
| Product Name | Carbon Steel Square Tube / Square Hollow Section (SHS) |
| Steel Grade | Q195, Q215, Q235, Q355 (Q345B), ASTM A500 Grade A/B/C, S235JR, S355JR, ST37, ST52 |
| Manufacturing Process | ERW (Electric Resistance Welded), Seamless, Cold Drawn, Hot Rolled |
| Dimensions (Side Width) | 10 mm x 10 mm – 600 mm x 600 mm (Customizable) |
| Wall Thickness (WT) | 0.5 mm – 30.0 mm (Customizable) |
| Length | 1m – 12m (Standard: 5.8m, 6m, or customized cut-to-size) |
| Tolerance | Outer Dimension: $\pm0.5\text{ mm}$ | Wall Thickness: $$\pm10\$ (Precision tolerances available) |
| Surface Treatment | Bare/Black, Lightly Oiled, Hot-Dip Galvanized, Pre-Galvanized, Black Painted/Varnished, Anti-Corrosion Coating |
| Standard Compliance | ASTM A500, ASTM A53, EN 10219, EN 10210, JIS G3466, GB/T 6728 |
| Processing Services | Precision Cutting, Bending, Punching, Drilling, Beveling, Welding, Custom Fabrication |
Key Advantages & Features
Exceptional Structural Strength: The closed-square profile offers excellent multi-directional load-bearing capacity, high torsional rigidity, and a superior strength-to-weight ratio compared to traditional open profiles.
Highly Weldable & Formable: Sourced from premium-grade mild steel, our square tubes allow for easy welding, bending, and shaping on-site without cracking.
Corrosion-Resistant Surface Options: Available with professional hot-dip galvanizing or industrial black varnish coatings to ensure long-term durability in outdoor and highly humid environments.
Precision and Consistency: Advanced rolling mills guarantee highly precise dimensional accuracy, straightness, and flat surfaces for seamless integration into automated assembly projects.
Primary Applications
Construction & Architecture: Steel structure columns, roof trusses, bridge supports, scaffolding, and structural building frames.
Machinery & Equipment: Heavy machinery chassis, agricultural equipment frames, conveyor systems, and industrial lifting equipment.
Infrastructure & Transportation: Highway guardrails, signposts, vehicle chassis, railway structural parts, and storage racking systems.
Daily Fabrication: Handrails, security gates, metal furniture, storage racks, and DIY steel assemblies.
Packaging & Shipping
Standard Export Seaworthy Packaging: Wrapped in bundles with strong steel strips, packed with waterproof plastic bags, and covered with protective end caps to prevent damage during sea or land transit.
Minimum Order Quantity (MOQ): 5 Metric Tons (Negotiable for custom trial orders).
FACTORY WORKSHOP
APPLICATION FIELD
Petroleum
Marine Exploration
Coal Mine
Architectural Engineering
Electric Field
Boiler Field
FAQ
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3.Q: Do you provide samples ? Is it free or extra ?
4.Q: Do you accept the third party inspection?
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Email : admin@chengchengsteel.com
Add : Unit 15A10, Building J3, Wanda Plaza, No. 57-1, Gongye South Road, Shunhua Road Subdistrict, High-tech Zone, Jinan City, Shandong Province
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