Stainless Steel Flat Bar 304 - 3/8 Inch X 3-1/2 Inch
304 Stainless Steel Flat Bar - 3-1/2" x 3/8" x 144"
This 3-1/2" x 3/8" 304 Stainless Steel Flat Bar provides a robust combination of strength and corrosion resistance for demanding projects. Certified to ASTM A276, it offers 73,200 PSI tensile strength and excellent weldability, making it a reliable choice for structural fabrication. In stock Los Angeles.
- 304 Stainless Steel Construction
- ASTM A276 Certified
- 73,200 PSI Tensile Strength
- Excellent Weldability & Corrosion Resistance
Type 304 stainless steel is a versatile austenitic alloy, known as "18-8" for its 18% chromium and 8% nickel content, which provides exceptional resistance to a wide range of corrosive environments. Supplied in an annealed condition, it is non-magnetic, highly ductile, and easily welded. This flat bar, conforming to ASTM A276, offers a solid rectangular profile with precise dimensions for fabrication and structural use.
As a large-profile bar, this 3-1/2" wide material is ideal for applications requiring substantial strength and surface area. It is frequently specified for base plates on heavy machinery, structural supports and braces in corrosive environments, heavy-duty brackets, and frame components for industrial equipment where longevity is paramount.
Specifications
- Material: 304 Stainless Steel
- Standards: ASTM A276
- Strength/Tensile: 73,200 PSI
- Dimensions: 3-1/2" Width x 3/8" Thickness x 144" Length
- Finish: Annealed Mill Finish
- Certifications: Mill Test Report (MTR) Available
Applications
- Construction & Architecture: Heavy structural supports and gussets - large profile provides high load capacity with weather resistance.
- Industrial Equipment: Machine base plates and mounting pads - ensures stable mounting and resists industrial corrosives.
- Food & Beverage Processing: Framework for large equipment and tanks - hygienic surface resists organic acids and is easy to sanitize.
- General Fabrication: Custom flanges, braces, and support arms - excellent weldability allows for complex and robust assemblies.
Target Users
Structural engineers, fabricators, and heavy equipment manufacturers rely on 304 Stainless Flat Bar for its strength and durability in industrial projects throughout the Los Angeles area.
Finish Options
This product comes standard with a mill finish in an annealed condition, which may have some minor surface imperfections. For projects requiring a specific appearance, such as a brushed (#4) or polished finish, these services 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 (the larger dimension of the flat side) and its Thickness (the smaller dimension). Use calipers for an accurate measurement.
Example: To order this Flat Bar, specify "304 Stainless Flat Bar, 3-1/2 inch wide by 3/8 inch thick".
Order Checklist
- Product name and required dimensions (3-1/2" x 3/8")
- Material specification and quantity (in feet or pieces)
- Confirm grade (304 or 304/304L) meets requirements
- Surface finish requirements (Standard mill finish)
- Certifications required (Mill Test Report)
- Special handling or delivery requirements
Quick Facts
- Product
- Stainless Steel Flat Bar 304 - 3/8 Inch X 3-1/2 Inch
- Material
- 304 Stainless Steel
- Standards
- ASTM A276
- Key Properties
- 73,200 PSI tensile, Excellent Weldability, Excellent Corrosion Resistance
- Primary Applications
- Base plates, structural supports, equipment framing, brackets
- Location
- Los Angeles warehouse - Same-day pickup available
Available Sizes
We stock 304 Stainless Flat Bar in a wide range of sizes, including widths from 1/2" to 12" and thicknesses from 1/8" to 2". This 3-1/2" x 3/8" size is available for immediate pickup in Los Angeles.
Custom cutting services available.
Contact for Sizing