Hot Rolled Steel Flat Bar - 1-3/4 Inch X 5/16 Inch
Hot Rolled Steel Flat Bar - 1-3/4 Inch X 5/16 Inch
This 1-3/4" x 5/16" hot rolled flat bar is an A36 structural steel product meeting ASTM A36 standards. Known for its excellent weldability and 36,000 PSI minimum yield strength, it provides reliable performance for frames, supports, and general fabrication projects. In stock Los Angeles.
- A36 Steel Construction
- ASTM A36 Certified
- 58,000-80,000 PSI Tensile Strength
- Excellent Weldability
Hot rolled A36 steel flat bar is formed at elevated temperatures, resulting in a product with a distinctive scaly, blue-grey finish and slightly rounded edges. This process makes it more malleable and cost-effective than cold rolled steel. Conforming to ASTM A36, it offers a minimum yield strength of 36,000 PSI, ensuring reliable performance in structural roles.
As a medium-sized flat bar, this 1-3/4" width is ideal for structural bracing, machine ways, wear strips for heavy equipment, and support brackets. Its substantial thickness provides rigidity and strength for load-bearing applications where precision finish is secondary to performance.
Specifications
- Material: A36 Hot Rolled Steel
- Standards: ASTM A36
- Strength/Tensile: 58,000-80,000 PSI
- Dimensions: 1-3/4" Width x 5/16" Thickness x 240" Length
- Finish: Hot Rolled (Mill Finish)
- Certifications: Mill Test Report (MTR) Available
Applications
- Structural Framing: Brackets and support braces - Excellent strength-to-weight ratio for medium-duty frames.
- General Fabrication: Base plates for machinery - Good compressive strength and easy to drill for mounting.
- Industrial Maintenance: Repair patches and reinforcement sections - A versatile stock size for common repairs.
- Transportation: Trailer frame cross-members and gussets - High durability and resistance to deformation.
Target Users
Fabricators, welders, and maintenance technicians rely on A36 flat bar for its strength, weldability, and value in structural and repair projects throughout the Los Angeles area.
Finish Options
This product comes standard with a hot rolled mill finish, characterized by a blue-grey scale and slightly rounded edges. The scale should be removed by grinding or sandblasting before painting or coating. For projects requiring a cleaner surface, pickling and oiling may be available via special order. Contact our Los Angeles sales team for custom finish inquiries.
How to Measure
Flat bar is measured by its Width (A) and Thickness (B). The width is the larger flat dimension, and the thickness is the smaller dimension.
Example: To order this flat bar, specify "Hot Rolled Flat Bar, 1-3/4" width x 5/16" thickness x 240" length".
Order Checklist
- Product name and required dimensions (1-3/4" x 5/16" x 240")
- Material specification and quantity
- Confirm grade (A36) meets requirements
- Surface finish requirements (Hot Rolled Mill Finish)
- Certifications required (Mill Test Report)
- Special cutting or delivery requirements
Quick Facts
- Product
- Hot Rolled Steel Flat Bar - 1-3/4 Inch X 5/16 Inch
- Material
- A36 Hot Rolled Steel
- Standards
- ASTM A36
- Key Properties
- 58,000-80,000 PSI tensile, Excellent Weldability, Good Machinability
- Primary Applications
- Structural Bracing, Machine Ways, Base Plates
- Location
- Los Angeles warehouse - Same-day pickup available
Available Sizes
We stock Hot Rolled Flat Bars in widths from 1/2" to 12" and thicknesses from 1/8" to 2". This 1-3/4" x 5/16" size is available for immediate pickup in Los Angeles.
Custom cutting services available.
Contact for Sizing