Hot Rolled Channels
About Hot Rolled Channels
A36 hot rolled steel channels provide a minimum yield strength of 36,000 PSI and excellent weldability. Conforms to ASTM A36. Ideal for frames, supports, and brackets. Available in Los Angeles.
Quick Facts
- Material: A36 Hot Rolled Steel
- ASTM Standard: A36
- Available Sizes: Heights from 3/4" to 1-1/2"
- Location: Los Angeles warehouse
- Services: Custom size, same-day pickup
Overview
Hot rolled channel, often called C-channel or U-channel, is a structural steel shape produced by passing heated steel through rollers. This process gives it a rougher surface finish and slightly rounded corners compared to cold-formed alternatives. A36 steel is the standard grade for this product, offering a balance of strength, ductility, and excellent weldability for general structural and fabrication purposes where tight tolerances are not the primary requirement.
The primary benefit of A36 hot rolled channel is its robust structural performance at an economical price point. It has a minimum yield strength of 36,000 PSI, making it suitable for load-bearing applications like equipment frames, braces, and building components. Its simple C-shaped profile provides good resistance to bending along its strong axis, making it a versatile and reliable choice for fabricators, construction projects, and industrial repairs.
Technical Specifications
Mechanical Properties
| 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
- Equipment Manufacturing: Frames, bases, and supports for industrial machinery due to its strength and weldability.
- Structural Framing: Support beams, braces, and cross-members in light construction and framing systems.
- Vehicle & Trailer Frames: Chassis components, hitches, and structural supports for utility trailers and vehicles.
- Safety & Protection: Guard rails, bollards, and protective barriers in industrial and commercial settings.
- Architectural Support: Brackets and supports for mounting signs, facades, and other exterior elements.
- Material Handling: Frames for conveyor systems, industrial carts, and heavy-duty shelving units.
- Agricultural Implements: Structural components for farm equipment that require durability and resistance to stress.
Working with Hot Rolled Channels
Machining
A36 steel has fair machinability due to its low carbon content. Use sharp tooling, slow speeds, and ample coolant for best results. The hot rolled surface scale should be removed by grinding or blasting before precise machining operations.
Welding
A36 is one of the easiest steels to weld using common methods, including MIG (GMAW), Stick (SMAW), and TIG (GTAW). Preheating is generally not required for thinner sections. It produces strong, ductile welds with minimal risk of cracking.
Finishing
Hot rolled channels have a mill scale surface that should be removed for proper paint or powder coat adhesion. For maximum corrosion resistance in outdoor applications, the material can be hot-dip galvanized after fabrication.
Related Products
As a versatile structural material, A36 Hot Rolled Channels are often used alongside other common hot rolled steel products. For projects requiring different profiles with similar material properties, consider these options:
Frequently Asked Questions
Q: What is the difference between hot rolled and cold rolled channel?
A: Hot rolled channel is formed at high temperatures, resulting in a rougher, scaled surface and looser dimensional tolerances. Cold rolled channel is formed at room temperature, providing a smoother finish and tighter tolerances, but is typically available in smaller sizes and lighter gauges.
Q: Is A36 channel suitable for outdoor use?
A: In its raw state, A36 steel will rust when exposed to the elements. For outdoor applications, it must be protected with a coating such as paint, powder coat, or hot-dip galvanizing to prevent corrosion. Galvanizing provides the most durable long-term protection.
Q: When should I use A572-50 channel instead of A36?
A: Use A572 Grade 50 channel when you need a higher strength-to-weight ratio. A572-50 has a minimum yield strength of 50,000 PSI compared to A36's 36,000 PSI, allowing for stronger or lighter designs. For general fabrication, A36 is the more common and economical choice.
Stock & Custom Sizes
Available in bar sizes with heights from 3/4" to 1-1/2". Standard lengths: 20 ft. Custom size available.
Same-day cutting and Los Angeles pickup available.
View Sizes & PricingNeed Hot Rolled Channels? Contact Bobco Metals for availability and Los Angeles pickup.
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