Hot Rolled Steel Flat Bar - 3-1/2 Inch X 3/16 Inch
A36 Hot Rolled Steel Flat Bar - 3-1/2 Inch X 3/16 Inch
This 3-1/2" x 3/16" hot rolled steel flat bar is an A36 structural grade ideal for fabrication and construction. Conforming to ASTM A36, it provides a minimum yield strength of 36,000 PSI and excellent weldability. Perfect for base plates and structural supports. In stock Los Angeles.
- A36 Carbon Steel Construction
- ASTM A36 Certified
- 58,000-80,000 PSI Tensile Strength
- Excellent Weldability
A36 hot rolled steel flat bar is a low-carbon structural steel manufactured to ASTM A36 specifications. The hot rolling process results in a scaly, blue-grey mill finish and slightly rounded edges. It offers reliable strength with a 36,000 PSI minimum yield and outstanding weldability using common methods, making it a versatile and economical choice for structural applications.
As a large-format flat bar, this 3-1/2" width is ideal for applications requiring a substantial footprint, such as machinery base plates, heavy structural connections, column gussets, and components for industrial dies. Its thickness provides good rigidity for braces and supports.
Specifications
- Material: A36 Hot Rolled Steel
- Standards: ASTM A36
- Strength/Tensile: 58,000-80,000 PSI
- Dimensions: 3-1/2" Width x 3/16" Thickness x 240" Length
- Finish: Hot Rolled (Mill Finish)
- Certifications: MTR Available
Applications
- Construction: Base plates for columns - Wide footprint distributes load effectively.
- Heavy Equipment: Frame reinforcements and mounting brackets - Strong and easily welded.
- General Fabrication: Structural gussets and braces - Provides rigidity in welded assemblies.
- Industrial Maintenance: Repair patches and wear strips - Economical and readily available for repairs.
Target Users
Fabricators, welders, construction crews, and maintenance technicians 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 scaly, blue-grey surface. This scale must be removed by grinding or blasting before painting or powder coating. For specific project requirements, other finishes such as pickled & oiled 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 calipers or a tape measure for accurate readings.
Example: To order this flat bar, specify "A36 Hot Rolled Flat Bar, 3-1/2" wide by 3/16" thick".
Order Checklist
- Product name and required dimensions (3-1/2" x 3/16" x 240")
- 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 - 3-1/2 Inch X 3/16 Inch
- Material
- A36 Hot Rolled Steel
- Standards
- ASTM A36
- Key Properties
- 58,000-80,000 PSI tensile, Excellent Weldability, Good Machinability
- Primary Applications
- Base plates, structural supports, general fabrication
- 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 3-1/2" x 3/16" size is available for immediate pickup in Los Angeles.
Custom cutting services available.
Contact for Sizing

