Structural Shapes
Structural shapes made from special steels are designed for structures that require greater strength, durability, and performance than conventional steel.
STRUCTURAL STEEL ANGLES ASTM A36
ASTM A36 Structural Steel Angles are hot-rolled profiles made of high-quality carbon steel, designed for structural and support applications. Their L-shape makes them ideal for joining, reinforcing, or supporting metal structures in a wide range of industrial and construction projects.
• Low-carbon steel: ASTM A36 is a carbon steel with low carbon content, offering excellent ductility, formability, and weldability.
• Versatile structural shape: Its angle form provides excellent load capacity in multiple directions, adding structural rigidity in frames, supports, and reinforcements.
• Good strength: Suitable for structures requiring medium strength and good weldability and machinability.
• Finish: Hot-rolled with uniform surfaces and rounded or sharp corners per customer specification.
• Forms: Equal and unequal angles, available in a variety of sizes and thicknesses.
• High load capacity and structural strength.
• Excellent weldability and machinability.
• Broad market availability.
• Adaptable to different structural design configurations.
• Cost-effective for mid- and large-scale structures.
Industries: Civil construction, infrastructure, machinery manufacturing, transportation, energy, and structural engineering.
Main applications:
• Beams and columns for buildings, bridges, and industrial facilities.
• Support structures for machinery and heavy equipment.
• Steel structures for platforms, frames, and roof systems.
• Support elements in civil works and welded or bolted steel structures.
Element | Composition |
Carbon | 0.26% max |
Manganese | 0.60% - 0.90% |
Phosphorus | 0.04% max |
Sulfur | 0.05% max |
Silicon | 0.40% max |
Nickel | 0.40% max |
Chromium | 0.25% max |
Molybdenum | 0.08% max |
Copper | 0.20% max |
Mechanical Property | A36 (S Beam) |
Ultimate Tensile Strength (ksi / MPa) | 58-80 ksi (400-550 MPa) |
Yield Strength (ksi / MPa) | 36 ksi (250 MPa) |
Elongación en 8" (min.) | 20% |
Elongación en 2" (min.) | 23% |
Brinell Hardness (HB) | 130-180 HB |
Modulus of Elasticity (ksi / GPa) | 29,000 ksi (200 GPa) |
Designation (S) | Depth (in) | Weight (lb/ft) | Flange Thickness (in) |
S3 x 5.7 | 3.00 | 5.7 | 0.17 |
S4 x 7.7 | 4.00 | 7.7 | 0.19 |
S5 x 10 | 5.00 | 10.0 | 0.23 |
S6 x 12.5 | 6.00 | 12.5 | 0.26 |
S8 x 18.4 | 8.00 | 18.4 | 0.34 |
S10 x 25.4 | 10.00 | 25.4 | 0.43 |
S12 x 31.8 | 12.00 | 31.8 | 0.50 |
S15 x 50 | 15.00 | 50.0 | 0.65 |
S18 x 70 | 18.00 | 70.0 | 0.79 |
S24 x 121 | 24.00 | 121.0 | 1.03 |
ASTM A36 steel has international equivalents with similar properties:
• ISO 630-2: Fe 360 B
• EN 10025-2: S235JR
• JIS G3101: SS400
• DIN 17100: St37-2
S-beam structural shapes (S3 - S24) manufactured to ASTM A36 provide a reliable and versatile solution for construction projects and steel structures. Their strength, weldability, and availability make them an essential component in modern structural engineering, ensuring safety and durability in all types of industrial and civil applications.