SS400, ASTM A36, St37 Unequal Angle steel for constructicsvfdbsgbgfbgnhg
Product Introduction
Unequal angle steel is an L-shaped profile with unequal leg lengths, manufactured through hot-rolling. Made of Q235 carbon steel, it compliestructural s witipbuilding. Unequal Angle steel can be divided into two types: unequal Angle steel with equal thickness and unequal Angle steel with unequal thickness.
Production technology
Hot Rolling: High-quality carbon steel coils are heated and shaped by rolling mills to achieve precise dimensions and mechanical properties.
Surface Treatment: Pickling removes oxides, followed by galvanizing or painting for enhanced corrosion resistance.
Cold Bending & Welding (Optional): Custom shapes via cold bending or extended lengths through welding.
Standards and Grade
CHINA: GB/T 706-2016, GB/T 700-2006: Q235 Q355
USA: ASTM A36, ASTM A572: GR40 GR50 GR60
EUROPE: EN 10056-1, EN 10025-2: S235JR, S275JR, S355JR
JAPAN: JIS G3192, JIS G3101: SS400 SS450 SM490
Main Size Specifications
Product advantage
High Strength: Tensile strength ≤370MPa, ideal for load-bearing structures.
Corrosion Resistance: Galvanized or painted surfaces enhance outdoor durability.
Easy to process: Easily cut, welded, or bent for complex designs.
Cost-Effective: Lower cost than I-beams for light-duty applications.
Application
Construction: Roof trusses, transmission towers, warehouse racks.
Machinery: Equipment brackets, automotive parts.
Shipbuilding & Bridges: Hull structures, bridge reinforcements.
Packaging and Shipping
Packaging:
Steel-strapped bundles with moisture-proof paper, optional wooden crates/pallets for heavy loads.
Transportation:
Sea Freight: Container shipping (FCL/LCL) or bulk carriers (for oversized profiles)
Air/Land: DDP door-to-door delivery (global arrival within 7-15 days)
Inter-modal: Hybrid solutions combining sea-air-land for urgent orders & cost optimization
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Q1: How to choose specifications?
A: Select the edge width and thickness based on the load-bearing requirements. For instance, for light-duty shelves, 30×20×3mm can be chosen, while for heavy-duty Bridges, 100×63×6mm is required.
Q2: How to choose the anti-corrosion treatment method?
A: For outdoor use, hot-dip galvanizing is recommended (with strong weather resistance), while for indoor use, painting is an option (with low cost).
Q3: What are the advantages and disadvantages compared with I-beams?
A: Angle steel has a low cost and flexible connection, but its torsional resistance is relatively weak. I-beams are suitable for large-span load-bearing.
Q4: Can you provide me with samples for inspection?
A: Yes, we will provide samples for free, but the shipping cost will be paid by the customer's account.
Q5: Where are you? Can I come see you?
A: We are in Tianjin, China. Of course you are welcome to visit our factory anytime.





