Structural Shapes
Structural shapes made from special steels are designed for structures that require greater strength, durability, and performance than conventional steel.
PERFILES ESTRUCTURALES BEAM S (S3 - S24)
S-beam structural shapes (S3 – S24) are hot-rolled steel beams produced to ASTM A36. They feature an ‘I’-shaped cross section designed to withstand bending, shear, and torsional loads in steel structures. These shapes are widely used in construction and in the fabrication of heavy and industrial structures.
• Manufactured to ASTM A36: carbon structural steel with good strength, ductility, and weldability.
• 'I' section: with flanges and web dimensions that vary by shape size (S3 to S24).
• Excellent structural performance: specifically designed to resist bending loads.
• Dimensional versatility: available in a wide range of depths, thicknesses, and weights per linear foot.
• Structural applications: ideal for steel structures, machinery supports, and building frames.
- 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.