Angle Steel (Equal & Unequal Angle)
Introduction
Angle steel (L-sections) are L-shaped structural members available in equal-leg and unequal-leg forms. They are economical, easy to fabricate, and widely used for bracing, framing, supports and connection details in buildings, machinery and general fabrication. Supplied hot-rolled, cold-formed or welded, angle steel can be delivered in carbon, high-strength, stainless or weathering steels with optional surface protection.
Typical Specifications
Standards: EN 10056 / EN 10279, ASTM A36 / A572, JIS G3192 (or customer spec)
Types: Equal-leg (L a×a×t) and unequal-leg (L a×b×t)
Leg Widths (a, b): 20 mm – 300 mm (typical range; custom sizes available)
Thickness (t): 3.0 – 25.0 mm (typical)
Lengths: Standard 6 m / 12 m; cut-to-length or customized lengths available
Materials / Grades: S235 / S275 / S355 (EN); A36, A572 Gr.50 (ASTM); stainless 304/316; weathering steel on request
Mechanical Properties (typical): Yield 235–355 MPa (grade dependent); tensile and elongation per material standard
Surface Finishes: Mill, hot-dip galvanized, electrogalvanized, primer + topcoat, powder coat
Features & Advantages
Simple & Efficient Geometry: L-shape gives effective bending resistance in two axes and good local stiffness at corners.
Cost-Effective: Low material waste and economical production for a wide range of uses.
Easy to Connect: Flat faces make bolting and welding straightforward for shop or site assembly.
Flexible Protection: Can be galvanized, painted or supplied in stainless/weathering grades for long service life in harsh environments.
Fabrication Friendly: Easily cut, drilled, notched, bent or welded to suit assemblies.
Common Applications
Structural bracing and secondary framing (purlins, lintels)
Support frames, racks, shelving and equipment mounts
Stair stringers, handrail supports and guardrails
Machine bases, chassis and fabricated frames
Agricultural and general fabrication uses
Fabrication & Value-Added Services
Cut-to-length, coping, notch and hole punching/CNC drilling.
Pre-galvanizing, primer/paint application, or powder coating.
Welded assemblies, pre-drilled splice kits and bolted connection prep.
Pre-assembly, tagging and JIT kitting for site installation.
Quality Assurance & Testing
Mill Test Certificate (MTC) with chemical and mechanical test results supplied on request.
Dimensional inspection (leg lengths, thickness, squareness) and straightness checks.
Coating/galvanize thickness and adhesion testing available per spec.
NDT (MT/UT) available for critical or fabricated components.
Packaging & Delivery
Bundles strapped with timber/polymer spacers to prevent marking.
End protection with plastic caps or taped ends.
Wooden crates or skids for export; components labeled with size, grade and PO.
Typical lead time: stock sizes 3–10 days; custom sizes/coatings 10–25 days (depending on volume).
Ordering Information - What We Need
Please provide: equal or unequal leg, leg dimensions (a×b×t), length(s), material grade, surface finish (galvanized/paint/stainless), quantity and any value-added requests (holes, notches, assemblies). If structural use, include span/load data so we can confirm adequacy and provide section properties and recommendations.
If you want, I can prepare a size-to-weight table, section properties (area, Ix, Sx) for common angles, or size an angle for a given load - tell me the dimensions or loads and I'll do it.
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