Hot Rolled Steel Square - 1-1/4 Inches
A36 Hot Rolled Steel Square Bar - 1-1/4" x 1-1/4" x 20'
This 1-1/4 inch A36 Hot Rolled Steel Square Bar is a versatile, low-carbon structural steel ideal for general fabrication. Meeting ASTM A36 standards with 36,000 PSI minimum yield strength, it offers excellent weldability and formability for frames, supports, and repairs. In stock Los Angeles.
- A36 Hot Rolled Steel Construction
- ASTM A36 Certified
- 36,000 PSI Yield Strength
- Excellent Weldability
A36 hot rolled square bar is produced by forming steel at high temperatures, resulting in a characteristic dark, scaly mill finish and slightly rounded corners. This process makes it cost-effective and easy to work with. Conforming to ASTM A36, this low-carbon steel provides a solid combination of strength (36,000 PSI yield), ductility, and excellent weldability using common methods like MIG and stick.
The 1-1/4" square profile is a medium-sized bar, making it a robust choice for structural bracing, machinery bases, trailer frames, and heavy-duty shelving supports. Its substantial cross-section provides rigidity and strength for load-bearing applications where precision dimensions are not the primary concern.
Specifications
- Material: A36 Hot Rolled Steel
- Standards: ASTM A36
- Strength/Tensile: 58,000 - 80,000 PSI
- Strength/Yield: 36,000 PSI (min)
- Dimensions: 1-1/4" x 1-1/4" x 20 ft (240")
- Finish: Mill Finish (Hot Rolled)
- Certifications: MTR Available
Applications
- Fabrication: Equipment Frames - Its 1-1/4" size offers strength and rigidity for machinery stands and bases.
- Construction: Structural Bracing - Provides reliable support for building frames and trusses due to its predictable strength.
- Transportation: Trailer Components - Ideal for building or repairing trailer frames, cross-members, and axle mounts.
- Industrial Maintenance: Support Brackets - Easily cut and welded to create custom, heavy-duty brackets for plant repairs.
Target Users
Fabricators, welders, and construction professionals rely on A36 square 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, characterized by a dark, slightly rough and scaly surface. This finish protects the steel from rust during storage. For applications requiring paint or coating, the mill scale must be removed by grinding or blasting. Contact our Los Angeles sales team for custom finish inquiries.
How to Measure
Square bar is measured by the length of one of its sides (A) and its overall length. As a square, both sides are equal. Use a tape measure or calipers for an accurate reading.
Example: To order this square bar, specify "A36 Hot Rolled Square, 1-1/4" x 20 ft".
Order Checklist
- Product name and required dimensions (1-1/4" x 1-1/4" x 20 ft)
- Material specification and quantity
- Confirm grade (A36) meets requirements
- Surface finish requirements (Hot Rolled Mill Finish)
- Certifications required (Mill Test Report)
- Special handling or delivery requirements
Quick Facts
- Product
- Hot Rolled Steel Square - 1-1/4 Inches x 20 ft
- Material
- A36 Hot Rolled Steel
- Standards
- ASTM A36
- Key Properties
- 36,000 PSI yield, excellent weldability, good formability
- Primary Applications
- Equipment frames, structural bracing, trailer components
- Location
- Los Angeles warehouse - Same-day pickup available
Available Sizes
We stock A36 Hot Rolled Square Bar in sizes from 1/4" to 2" and lengths up to 20 feet. This 1-1/4" x 20 ft size is available for immediate pickup in Los Angeles.
Custom cutting services available.
Contact for Sizing