Hot Rolled Steel Flat Bar - 4 Inch X 3/4 Inch
| Weight | 10.200000 |
|---|---|
| bobco_dimensions_width | 4 |
| bobco_dimensions_length | 240 |
| bobco_thickness | 0.75 |
| price_21to50 | 0 |
| price_11to20 | 0 |
| price_6to10 | 0 |
| addon_charges_percentage | 20 |
| addon_charges_simple | 20 |
| MAX LENGTHS | 20 |
| Thickness | 0.75 |
| Dimension Length | 240.000000 |
| Dimension Width | 4.000000 |
| Dimension Height | 0.750000 |
| FULL LENGTH PRICE | 90.35 |
| full_length | 20 |
| addon_charges_fraction | 2 |
A36 Hot Rolled Steel Flat Bar - 4 Inch X 3/4 Inch
This 4" x 3/4" A36 Hot Rolled Steel Flat Bar provides excellent strength and weldability for structural applications. Certified to ASTM A36, it features a minimum yield strength of 36,000 PSI, making it a reliable choice for supports, frames, and base plates. 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 a product with a distinctive scaly, blue-grey finish and slightly rounded edges. This process makes it more cost-effective than cold rolled steel for applications where precise tolerances and surface finish are not critical. Its excellent weldability and formability make it a staple for general fabrication and structural work.
As a large-format bar, this 4" x 3/4" size is ideal for applications demanding high strength and a substantial footprint. Common uses include machinery base plates, heavy equipment mounting brackets, structural braces for building frames, and key components in trailer and chassis fabrication where durability is essential.
Specifications
- Material: A36 Steel
- Standards: ASTM A36
- Strength/Tensile: 58,000-80,000 PSI
- Dimensions: 4" Width x 3/4" Thickness x 240" Length
- Finish: Hot Rolled
- Certifications: Mill Test Report (MTR) Available
Applications
- Structural Fabrication: Base plates for columns and machinery - provides a stable, load-distributing foundation.
- Transportation: Trailer frames and chassis cross-members - offers high strength and durability for vehicle construction.
- Heavy Equipment: Mounting pads and reinforcement sections - withstands vibration and heavy loads.
- Construction: Support braces, gussets, and lintels - ensures reliable performance in building frames.
Target Users
Fabricators, welders, construction contractors, and industrial maintenance crews 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 color and a surface scale. This scale must be removed by grinding, sandblasting, or pickling before painting or coating. For specific project requirements, other services may be available via special order. Contact our Los Angeles sales team for custom inquiries.
How to Measure
Flat bar is measured by its Width (A) and its Thickness (B). Use a tape measure or calipers for an accurate reading.
Example: To order this flat bar, specify "A36 Hot Rolled Flat Bar, 4 Inch by 3/4 Inch by 240 Inch length".
Order Checklist
- Product name and required dimensions (4" x 3/4" x 240")
- Material specification and quantity
- Confirm grade (A36) meets project requirements
- Surface finish requirements (Hot Rolled)
- Certifications required (Mill Test Report)
- Special handling, cutting, or delivery requirements
Quick Facts
- Product
- Hot Rolled Steel Flat Bar - 4 Inch X 3/4 Inch
- Material
- A36 Steel
- Standards
- ASTM A36
- Key Properties
- 58,000-80,000 PSI tensile, Excellent Weldability, Good Strength
- Primary Applications
- Base plates, Trailer frames, Structural 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 3/4" size is available for immediate pickup in Los Angeles.
Custom cutting services available.
Contact for Sizing-
Hot Rolled Steel Flat Bar - 4 Inch X 3/4 Inch$90.35
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