Select a Size
12.500
Choose from predefined sizes or select custom size for manual entry
Enter quantity between 1 and 999
Hot Rolled I-Beams
ASTM A36 hot rolled I-beams, also known as S-beams. Provides 36,000 PSI minimum yield strength and excellent weldability for structural applications. Sizes from 3" to 5" height in stock.
About Hot Rolled I-Beams
Hot rolled steel I-beams provide a minimum yield strength of 36,000 PSI and excellent weldability. Conforming to ASTM A36, they are ideal for structural frames and machinery bases. Custom cutting available.
Quick Facts
- Material: A36 Steel
- ASTM Standard: A36
- Condition: Hot Rolled
- Available Sizes: 3", 4", and 5" heights
- Location: Los Angeles warehouse
- Services: Custom size, same-day pickup
Overview
Hot rolled I-beams, also known as Standard American Beams or S-beams, are a fundamental component in structural steel applications. The 'I' shape is highly efficient for resisting bending loads and shear forces. Manufactured through a hot rolling process, these beams have a rougher surface finish compared to cold-finished products but offer excellent formability and ductility. Their geometry consists of a central web connecting two parallel flanges, providing superior load distribution.
The primary grade for these beams is A36 steel, which guarantees a minimum yield strength of 36,000 PSI, ensuring predictable performance under structural stress. This material's excellent weldability allows for easy fabrication and on-site modifications. Its toughness makes it suitable for construction, equipment frames, and machinery bases where strength and reliability are critical. The combination of strength, cost-effectiveness, and versatility makes it a staple for general construction projects.
Technical Specifications
⚠️ Reference Data Only: Values shown are typical industry standards and may vary by manufacturer, lot, and heat treatment. For critical applications, please contact us to verify specifications or request a Mill Test Report (MTR).
Mechanical Properties (A36 Steel)
| Property | Value | Unit |
|---|---|---|
| Tensile Strength | 58,000 - 80,000 | PSI |
| Yield Strength | 36,000 | PSI |
| Elongation | 20 | % |
| Hardness | 119-162 | HB |
Applicable Standards
- ASTM A36: Standard Specification for Carbon Structural Steel.
Common Applications
- Construction: Building frames and roof support trusses - for high load-bearing capacity.
- Infrastructure: Bridge support members and girders - due to its predictable strength.
- Industrial Equipment: Machinery bases and support frames - for vibration damping and rigidity.
- Material Handling: Crane runway beams and hoist supports - resisting dynamic loads.
- Mezzanines: Floor joists and main support beams - for creating elevated platforms.
- Trailers & Chassis: Frame rails and cross-members for truck beds - for strength and durability.
- Shipbuilding: Structural members in hulls and decks - for robust construction.
- Residential Construction: Lintel beams over doors and windows - to support masonry loads.
Working with Hot Rolled I-Beams
Machining
A36 steel has fair machinability. For best results, use slow speeds, heavy feeds, and ample coolant. The material can be drilled, tapped, and milled using standard high-speed steel or carbide tooling.
Welding
A36 steel exhibits excellent weldability and is suitable for all common welding methods, including SMAW (stick), GMAW (MIG), and FCAW. Preheating is generally not required for thinner sections but may be beneficial for thicker members to prevent cracking.
Finishing
The hot rolled surface has a mill scale that should be removed by grinding or sandblasting before painting or coating. A36 can be primed, painted, or galvanized for enhanced corrosion protection in exterior or corrosive environments.
Related Products
Frequently Asked Questions
Q: What is the difference between an I-beam and a wide flange (W-beam)?
A: I-beams (S-beams) have tapered inner flanges, while wide flange beams (W-beams or H-beams) have parallel, non-tapered flanges. W-beams are generally stronger and more common in modern construction for columns and major beams.
Q: Is A36 steel suitable for outdoor use?
A: Uncoated A36 steel will rust when exposed to the elements. For outdoor applications, it must be protected with a coating such as paint, primer, or hot-dip galvanizing to prevent corrosion.
Q: Can I substitute an I-beam for a channel in my project?
A: It depends entirely on the engineering requirements. I-beams are designed for two-axis bending resistance, while channels are better for handling loads primarily in one direction. Always consult a structural engineer for substitutions.
Stock & Custom Sizes
Available heights: 3", 4", and 5". Standard lengths: 20 ft. Custom size available.
Same-day cutting and Los Angeles pickup available.
View Sizes & PricingNeed Hot Rolled I-Beams? Contact Bobco Metals for availability and Los Angeles pickup.
Request a Quote Ask an Expert| Item Size & Description | Weight (lbs.)/Ft | Click! Arrow to Select Size | Qty | Price | Actions |
|---|---|---|---|---|---|
| 12.500 |
Choose from predefined sizes or select custom size for manual entry |
Enter quantity between 1 and 999 | Select a Size |