Hot Rolled Steel Angle - 4 Inch X 3 Inch X 5/16 Inch
Hot Rolled Steel Angle - 4 Inch X 3 Inch X 5/16 Inch
This 4" x 3" x 5/16" A36 hot rolled steel angle offers a cost-effective combination of strength and versatility. Conforming to ASTM A36, it has excellent weldability and is suitable for a wide range of structural applications, from building frames to industrial supports. In stock Los Angeles.
- A36 Steel Construction
- ASTM A36 Certified
- 58,000-80,000 PSI Tensile Strength
- Excellent Weldability
A36 hot rolled steel angle is a low-carbon structural steel produced by forming steel at high temperatures. This process results in a material with a scaled surface finish and slightly rounded corners. It meets ASTM A36 standards, ensuring a minimum yield strength of 36,000 PSI, good ductility, and outstanding weldability using all common methods without the need for preheating.
As a large-class angle, this 4" x 3" size provides significant structural integrity for demanding load-bearing jobs. It is ideal for heavy structural framing in commercial buildings, robust industrial supports for machinery and conveyors, and main frame components for heavy-duty trailers and equipment bases.
Specifications
- Material: A36 Steel
- Standards: ASTM A36
- Strength/Tensile: 58,000-80,000 PSI
- Dimensions: 4" Leg x 3" Leg x 5/16" Thickness
- Finish: Hot Rolled Mill Finish
- Certifications: MTR Available
Applications
- Building Construction: Main structural frames, columns, and corner bracing - high load-bearing capacity.
- Heavy Equipment: Machinery bases and frames - durable and withstands vibration.
- Industrial Racks: Uprights and cross-members for heavy-duty storage systems - excellent strength-to-weight.
- Trailer Manufacturing: Main frame rails and supports - strong and easy to weld and fabricate.
Target Users
Structural engineers, steel fabricators, and construction professionals rely on A36 steel angle for its reliable strength and ease of use in projects throughout the Los Angeles area.
Finish Options
This product comes standard with a hot rolled mill finish, characterized by a blue-gray, slightly scaled surface. This scale must be removed by grinding or sandblasting before painting or coating. For corrosion resistance in outdoor applications, galvanizing is recommended. Contact our Los Angeles sales team for custom finish inquiries.
How to Measure
For unequal leg angle, measure the outside length of Leg A (the longer leg), Leg B (the shorter leg), and the material Thickness.
Example: To order this angle, specify "4 inch by 3 inch by 5/16 inch steel angle".
Order Checklist
- Product name and required dimensions (4" x 3" x 5/16")
- 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 Angle - 4 Inch X 3 Inch X 5/16 Inch
- Material
- A36 Steel
- Standards
- ASTM A36
- Key Properties
- 58,000-80,000 PSI tensile, excellent weldability, good ductility
- Primary Applications
- Heavy structural framing, industrial supports, equipment bases
- Location
- Los Angeles warehouse - Same-day pickup available
Available Sizes
We stock A36 Steel Angle in a wide range of sizes with legs from 1/2" to 8" and standard lengths of 20 feet. This 4" x 3" x 5/16" size is available for immediate pickup in Los Angeles.
Custom cutting services available.
Contact for Sizing


