Hot Rolled Steel Flat Bar - 5-1/2 Inch X 1/2 Inch
A36 Hot Rolled Steel Flat Bar - 5-1/2" X 1/2"
This 5-1/2" x 1/2" Hot Rolled Steel Flat Bar is a versatile A36 structural grade ideal for heavy fabrication. Conforming to ASTM A36 standards, it provides a minimum 36,000 PSI yield strength and excellent weldability for creating base plates, supports, and frames. In stock Los Angeles.
- A36 Hot Rolled Steel Construction
- ASTM A36 Certified
- 36,000 PSI Yield Strength
- Excellent Weldability
A36 hot rolled steel flat bar is a low-carbon structural steel with excellent formability and weldability. Produced at high temperatures, it features a characteristic blue-grey mill scale finish and slightly rounded edges. Its 36,000 PSI minimum yield strength, as defined by ASTM A36, ensures reliable performance in structural applications where precise tolerances are less critical than overall strength and cost-effectiveness.
As a large-format flat bar, this 5-1/2" width is particularly suited for applications requiring substantial surface area and strength. It is commonly used for machinery base plates, heavy structural connections, column gussets, and custom die components where stability and load distribution are critical design factors.
Specifications
- Material: A36 Hot Rolled Steel
- Standards: ASTM A36
- Strength/Yield: 36,000 PSI (Minimum)
- Dimensions: 5-1/2" Width x 1/2" Thickness x 240" Length
- Finish: Hot Rolled (Mill Scale)
- Certifications: Mill Test Report (MTR) Available
Applications
- Heavy Equipment: Base plates for machinery - provides a stable, weldable foundation.
- Structural Engineering: Gussets and connection plates - high strength for building frames and supports.
- Industrial Maintenance: Reinforcement sections for heavy-duty repairs - cost-effective and strong.
- Tool & Die: Components for stamping dies and fixtures - durable and readily available.
Target Users
Fabricators, welders, structural engineers, and maintenance crews rely on A36 flat bar for its strength, weldability, and value in construction and 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 and slightly rounded edges. For painting or coating, this scale must be removed via grinding or sandblasting. 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 or calipers for accurate measurement.
Example: To order this flat bar, specify "A36 Hot Rolled Flat Bar, 5-1/2" x 1/2"".
Order Checklist
- Product name and required dimensions (5-1/2" x 1/2")
- 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 - 5-1/2 Inch X 1/2 Inch
- Material
- A36 Hot Rolled Steel
- Standards
- ASTM A36
- Key Properties
- 36,000 PSI yield, excellent weldability, good machinability
- Primary Applications
- Base plates, structural supports, heavy fabrication
- Location
- Los Angeles warehouse - Same-day pickup available
Available Sizes
We stock Hot Rolled Flat Bar in widths from 1/2" to 12" and thicknesses from 1/8" to 2". This 5-1/2" x 1/2" size is available for immediate pickup in Los Angeles.
Custom cutting services available.
Contact for Sizing

