Hot Rolled Steel Flat Bar - 1-3/4 Inch X 1/8 Inch
Hot Rolled Steel Flat Bar - 1-3/4 Inch X 1/8 Inch
This 1-3/4" x 1/8" A36 Hot Rolled Steel Flat Bar offers a versatile combination of strength, weldability, and value. Conforming to ASTM A36 specifications, it provides a minimum yield strength of 36,000 PSI, making it ideal for structural supports and general fabrication. In stock Los Angeles.
- A36 Steel Construction
- ASTM A36 Certified
- 58,000-80,000 PSI Tensile Strength
- Excellent Weldability
A36 hot rolled (HR) flat bar is a low-carbon steel formed at elevated temperatures, resulting in slightly rounded edges and a characteristic blue-grey mill scale finish. This cost-effective process produces a material with excellent formability and ductility. It meets ASTM A36 standards, ensuring a minimum 36,000 PSI yield strength, and its composition provides outstanding weldability with all common welding methods.
As a medium-width bar, this 1-3/4" size is exceptionally versatile. It is commonly used for structural bracing, equipment frames, wear strips on machinery, and base plates. Its balance of strength and workability makes it a go-to choice for fabricators and maintenance shops for repairs and custom builds.
Specifications
- Material: A36 Hot Rolled Steel
- Standards: ASTM A36
- Strength/Tensile: 58,000-80,000 PSI
- Dimensions: 1-3/4" Width x 1/8" Thickness x 240" Length
- Finish: Mill Finish
- Certifications: Mill Test Report (MTR) Available
Applications
- Structural Fabrication: Brackets, gussets, and frame cross-members - Excellent strength-to-weight ratio and is easy to weld.
- Industrial Machinery: Wear strips, mounting plates, and levers - Good durability and machinability for equipment parts.
- Transportation: Trailer chassis components and reinforcements - Resists deformation and is simple to repair.
- General Construction: Concrete forms, shims, and temporary supports - Cost-effective and versatile for job site needs.
Target Users
Fabricators, welders, construction contractors, and maintenance technicians rely on A36 flat bar for its strength and versatility in structural applications throughout the Los Angeles area.
Finish Options
This product comes standard with a hot rolled mill finish, which includes a layer of dark, hard mill scale. This surface must be removed by grinding, sandblasting, or pickling prior to painting or galvanizing. Left unfinished, it will rust. For specific project requirements, other finishes 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). Use calipers for an accurate measurement of the rectangular cross-section.
Example: To order this flat bar, specify "A36 Flat Bar, 1-3/4 inch by 1/8 inch".
Order Checklist
- Product name and required dimensions (1-3/4" x 1/8" x 240")
- Material specification and quantity
- Confirm grade (A36) meets requirements
- Surface finish requirements (Mill Finish)
- Certifications required (Mill Test Report)
- Special handling or delivery requirements
Quick Facts
- Product
- Hot Rolled Steel Flat Bar - 1-3/4 Inch X 1/8 Inch
- Material
- A36 Hot Rolled Steel
- Standards
- ASTM A36
- Key Properties
- 58,000-80,000 PSI tensile, Excellent Weldability, Good Formability
- Primary Applications
- Structural Bracing, Equipment Frames, Wear Strips
- Location
- Los Angeles warehouse - Same-day pickup available
Available Sizes
We stock A36 Hot Rolled Flat Bar in widths from 1/2" to 12" and thicknesses from 1/8" to 2". This 1-3/4" x 1/8" size is available for immediate pickup in Los Angeles.
Custom cutting services available.
Contact for Sizing

