Hot Rolled Steel Flat Bar - 4 Inch X 1-1/4 Inch
| Weight | 17.000000 |
|---|---|
| bobco_dimensions_width | 4 |
| bobco_dimensions_length | 240 |
| bobco_thickness | 1.25 |
| price_21to50 | 0 |
| price_11to20 | 0 |
| price_6to10 | 0 |
| addon_charges_percentage | 20 |
| addon_charges_simple | 20 |
| MAX LENGTHS | 20 |
| Thickness | 1.25 |
| Dimension Length | 240.000000 |
| Dimension Width | 4.000000 |
| Dimension Height | 1.250000 |
| FULL LENGTH PRICE | 855.87 |
| full_length | 20 |
| addon_charges_fraction | 2 |
Hot Rolled Steel Flat Bar - 4 Inch X 1-1/4 Inch
This 4" x 1-1/4" Hot Rolled Flat Bar is a general-purpose structural steel with excellent weldability. Conforming to ASTM A36, it provides a minimum yield strength of 36,000 PSI, making it ideal for frames, supports, and heavy fabrication. In stock Los Angeles.
- A36 Carbon Steel Construction
- ASTM A36 Certified
- 58,000-80,000 PSI Tensile Strength
- Excellent Weldability
A36 hot rolled steel is formed at elevated temperatures, creating a product with a distinctive scaly, blue-grey finish and slightly rounded edges. This process results in a cost-effective material with good overall mechanical properties. It conforms to ASTM A36 specifications for structural carbon steel, offering reliable strength, ductility, and excellent weldability without pre-heating for most sections.
The large 4-inch width of this flat bar makes it particularly suited for applications requiring a substantial footprint and high strength. Common uses include base plates for machinery and columns, heavy structural braces, support straps, and components for industrial equipment and trailer frames.
Specifications
- Material: A36 Carbon Steel
- Standards: ASTM A36
- Strength/Tensile: 58,000-80,000 PSI
- Dimensions: 4" Width x 1-1/4" Thickness x 20 ft Length
- Finish: Hot Rolled (Mill Finish)
- Certifications: MTR Available
Applications
- Heavy Fabrication: Base plates - provides a stable, weldable foundation for columns and equipment.
- Transportation: Trailer frame cross-members - offers high strength and durability for chassis components.
- Industrial Maintenance: Wear strips and reinforcement plates - cost-effective and easy to fabricate for repairs.
- Construction: Structural supports and braces - reliable strength for building frames and supports.
Target Users
Fabricators, welders, construction contractors, and maintenance personnel 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, characterized by a blue-grey, scaly surface. This scale must be removed by grinding or blasting before painting or coating. 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 a tape measure for width and calipers for an accurate thickness reading.
Example: To order this flat bar, specify "Hot Rolled Flat Bar, 4 inches wide by 1-1/4 inches thick".
Order Checklist
- Product name and required dimensions (4" x 1-1/4")
- 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 Flat Bar - 4 Inch X 1-1/4 Inch
- Material
- A36 Carbon Steel
- Standards
- ASTM A36
- Key Properties
- 58,000-80,000 PSI tensile, Excellent Weldability, Good Formability
- Primary Applications
- Base plates, heavy structural, industrial supports
- 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 4" x 1-1/4" size is available for immediate pickup in Los Angeles.
Custom cutting services available.
Contact for Sizing-
Hot Rolled Steel Flat Bar - 4 Inch X 1-1/4 Inch$855.87
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