Hot Rolled Steel Flat Bar - 4-1/2 Inch X 1/4 Inch
A36 Hot Rolled Steel Flat Bar - 4-1/2" x 1/4"
This 4-1/2" x 1/4" A36 Hot Rolled Steel Flat Bar is a structural carbon steel ideal for general fabrication and heavy-duty support. Conforming to ASTM A36, it offers excellent weldability and a minimum yield strength of 36,000 PSI, making it reliable for structural components. In stock Los Angeles.
- A36 Hot Rolled Steel Construction
- ASTM A36 Certified
- 58,000-80,000 PSI Tensile Strength
- Excellent Weldability
A36 Hot Rolled Steel is a low-carbon steel formed at elevated temperatures, resulting in a scaly, blue-grey mill finish and slightly rounded edges. This process makes it cost-effective and easy to work with. Conforming to ASTM A36, it delivers a minimum yield strength of 36,000 PSI, ensuring dependable performance in structural roles where high strength is a primary requirement.
The substantial 4-1/2" width of this large flat bar makes it ideal for base plates for columns and machinery, heavy equipment mounting, die components, and robust structural framing where load distribution over a wider area is critical for stability and strength.
Specifications
- Material: A36 Hot Rolled Steel
- Standards: ASTM A36
- Strength/Tensile: 58,000-80,000 PSI
- Dimensions: 4-1/2" Width x 1/4" Thickness
- Finish: Hot Rolled Mill Finish
- Certifications: MTR Available
Applications
- Structural Engineering: Base plates - Excellent compressive strength and easy to drill for mounting columns.
- Heavy Equipment: Frame components and wear strips - High durability and resistance to deformation.
- Industrial Maintenance: Reinforcement sections and support brackets - Cost-effective and readily available for repairs.
- Fabrication: Die components and custom machinery parts - Substantial size for robust applications.
Target Users
Fabricators, welders, structural engineers, and maintenance technicians rely on A36 flat bar for its strength and versatility in industrial projects throughout the Los Angeles area.
Finish Options
This product comes standard with a hot rolled mill finish, characterized by a blue-grey scale that must be removed before painting or coating. For specific project requirements, other services like grinding or galvanizing 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 the width and calipers for an accurate thickness measurement.
Example: To order this flat bar, specify "A36 Hot Rolled Flat Bar, 4-1/2 inch by 1/4 inch".
Order Checklist
- Product name and required dimensions (4-1/2" x 1/4")
- Material specification and quantity
- Confirm grade (A36) meets requirements
- Surface finish requirements (Hot Rolled)
- Certifications required (Mill Test Report)
- Special handling or delivery requirements
Quick Facts
- Product
- Hot Rolled Steel Flat Bar - 4-1/2 Inch X 1/4 Inch
- Material
- A36 Hot Rolled Steel
- Standards
- ASTM A36
- Key Properties
- 58,000-80,000 PSI tensile, Excellent Weldability, Good Formability
- Primary Applications
- Base plates, structural bracing, equipment frames
- 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 4-1/2" x 1/4" size is available for immediate pickup in Los Angeles.
Custom cutting services available.
Contact for Sizing