Flat Bar

Atlantic Stainless offers an extensive inventory of stainless steel flat bar in various grades, finishes, and dimensions to meet the needs of diverse industries. Whether you’re looking for high-strength material for structural fabrication or corrosion-resistant bars for food-grade equipment, our flat bar products deliver exceptional quality and durability.

Available in both true-flat bar and sheared-and-edged formats, our stainless flat bars are precision-cut to meet ASTM standards. They can be ordered in standard 20’ lengths or custom sizes to match your application.

Flat Bar vs. Sheared & Edged: What’s the Difference?

Understanding the difference between flat bar types helps ensure you get the right product for your application:

True Flat Bar – Produced via rolling or extrusion to a specified dimension. These bars have tight tolerances and smooth, uniform surfaces—ideal for precision machining or ornamental use.

Sheared & Edged Flat Bar – Cut from stainless steel plate and edge-conditioned. These bars are a cost-effective option with slightly wider tolerances and are great for structural or general fabrication purposes.

Both types are available in a range of stainless grades and finishes to suit your design or performance requirements.

Common Applications for Stainless Steel Flat Bar

Stainless steel flat bars are versatile and used in many demanding environments. Typical applications include:

• Brackets & Bracing Components
• Food Processing Equipment
• Architectural & Ornamental Work
• Marine Fabrication
• Machined Parts & Assemblies

Stainless Flat Bar Grades & Availability

We stock a wide selection of stainless steel flat bar in common grades and finishes. Custom sizes and special orders are also available.

Available Grades

• 304/304L Most commonly used; excellent corrosion resistance and weldability
• 316/316L Enhanced corrosion resistance; ideal for marine and chemical environments
• Other Grades Available upon request (e.g., 309, 310, 321, 410 for high-temp or specialty use)

Finish Options

• Mill Finish Standard finish as produced by the mill; rougher surface
• Polished Smooth, reflective surface for architectural or hygienic use
• Hot Rolled Scaled finish with slightly rougher texture; ideal for industrial use
• Cold Drawn Tighter tolerances and smoother finish; suitable for precision work

Tolerances & Specifications

• Standard Lengths 20’ random lengths (custom lengths available)
• Widths From 1/8” to 12”
• Thicknesses From 1/8” to 2”
• Tolerances Conforms to ASTM A276 and ASTM A484 standards
• Processing Services Shearing, polishing, deburring, custom cutting

Request a Quote or Sample Today

Whether you need a few feet of flat bar or full production quantities, Atlantic Stainless is ready to meet your needs. Contact us today!

Available Steel Flat Bar Grades

• 304/304L, 316/316L, 303, 317L 321, 347, 410, 416, 440C, 2205, 17-4 and more! View our Line Card here.
• True flat bar and sheared and edged options available
• Cold drawn flat bar available in varying grades and sizes
• DFARS or domestic material available in a wide range of sizes
• We will custom saw cut to length
• Polishing services are available