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Help CenterSteel Angle & Angle Steel For Steel Structure，Q235B、Q355B、S235JR、S355JR、A36
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1. Product Overview
Angle steel, also commonly referred to as angle iron, is a long-profile steel product with two perpendicular sides forming an L-shaped cross-section. Renowned for its stable mechanical properties, high bending and compressive strength, and excellent structural stability, it has become one of the most widely used and cost-effective metal materials in modern industrial production and infrastructure construction. It is extensively applied in steel structure engineering, building construction, mechanical equipment manufacturing, power transmission facilities, bridge engineering, and various support and framing systems, providing reliable structural support and connection solutions for diverse engineering projects.
2. Product Classification
2.1 By Side Dimension
Equal Angle SteelBoth sides of the steel are identical in width, with specifications marked in the format of side width × side width × thickness. Typical examples include 50×50×5mm, 63×63×6mm, and 100×100×8mm, widely used in general structural components with uniform stress distribution.
Unequal Angle SteelThe two sides differ in width, with specifications expressed as long side × short side × thickness, such as 100×63×6mm, 125×80×8mm, and 150×100×10mm. It is specially designed for asymmetric stress conditions and customized structural requirements.
2.2 By Surface Treatment
Hot Rolled Black Angle SteelProduced through high-temperature rolling processes, maintaining the original black oxide surface. It features high production efficiency, stable performance, and cost advantages, suitable for indoor structures or components requiring subsequent anti-corrosion treatment.
Hot Dipped Galvanized Angle SteelProcessed by hot-dip galvanizing technology, forming a dense and uniform zinc coating on the surface. It delivers outstanding rust resistance, corrosion protection, and weather resistance, making it ideal for outdoor facilities, coastal projects, and high-humidity environments.
3. Standards & Materials
Our angle steel strictly complies with international and national quality standards to ensure product reliability and versatility:
Chinese Standard: GB/T 706, GB/T 1591
European Standard: EN 10025
American Standard: ASTM A36, ASTM A572
Commonly supplied materials include:Q235B, Q355B, S235JR, S355JR, A36, etc. These materials feature excellent weldability, formability, and mechanical performance, meeting the demands of different engineering and application scenarios.
4. Product Specifications
Side width range: 25mm – 200mm
Thickness range: 3mm – 24mm
Standard lengths: 6 meters, 9 meters, 12 meters
Customized length cutting, punching, bending, drilling, painting, and other deep processing services are available according to customer requirements
5. Product Advantages
Outstanding Structural PerformanceReasonable cross-section design ensures high section modulus, strong bending resistance, compression resistance, and torsion resistance, effectively improving overall load-bearing capacity.
Easy Processing & InstallationExcellent weldability, bolt connectivity, and machinability allow for convenient cutting, drilling, bending, and assembly, significantly improving construction efficiency and reducing labor costs.
Wide Application VersatilitySuitable for diverse industrial and construction scenarios, serving as beams, columns, frames, supports, reinforcements, and connecting components in various projects.
High Cost-EfficiencyHigh material utilization rate, stable quality, and mass production capacity reduce comprehensive engineering costs, making it economical for large-scale projects.
Strong Durability & Corrosion ResistanceHot-dipped galvanized products provide long-term protection against rust and corrosion, extending service life in harsh outdoor, humid, or corrosive environments.
Stable Quality & Reliable SupplyProduced with advanced rolling equipment and strict quality control, ensuring consistent dimensions, smooth surfaces, and stable mechanical properties.
6. Main Application Fields
Building & Steel Structures: Factory buildings, warehouses, high-rise buildings, curtain wall frameworks, roof trusses, and structural reinforcements
Power & Communication Facilities: Transmission towers, telecommunication towers, substation structures, and line supports
Bridge & Infrastructure: Bridge components, trestles, pipe supports, road guardrails, and foundation structures
Mechanical & Equipment Manufacturing: Equipment frames, bases, vehicle chassis, mechanical supports, and assembly parts
Shipbuilding & Marine Engineering: Marine structures, offshore platforms, and coastal engineering components
Decoration & Engineering Support: Storage shelves, advertising brackets, safety fences, stair frames, and various decorative metal structures
7. Packaging, Quality & Delivery
Packing: Bundled securely with steel strips, suitable for long-distance sea transportation, land transportation, and railway transportation
Surface Treatment: Black rolling surface, sandblasting, anti-rust painting, or hot-dip galvanizing
Quality Certification: Original Mill Test Certificate (MTC), material inspection reports, and export commodity inspection documents are provided
Delivery Time: 5–7 days
Support customized orders, flexible specifications, and professional export services to meet global customer demands
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