Skip to Content
800-262-2605 | 866-267-8335 Chat with us
Special discounts for local customers
Find Metal
Toggle Nav Bobco Metals
  • Steel
    • Hot Rolled Steel
      • Hot Rolled Rounds
      • Hot Rolled Squares
      • Hot Rolled Flat Bars
      • Hot Rolled Re-Inforcing Bars
      • Hot Rolled Angles
      • Hot Rolled Channels
      • Hot Rolled Sheets
      • Hot Rolled Plates
      • Hot Rolled Diamond Plate
      • Hot Rolled Square Tubes
      • Hot Rolled Rectangular Tubes
      • Hot Rolled Round Tubes
      • Hot Rolled Black Pipe
      • Hot Rolled I-Beams
      • Hot Rolled Expanded Metal
      Hot Rolled Steel
    • Cold Rolled Steel
      • Cold Rolled Rounds
      • Cold Rolled Squares
      • Cold Rolled Flat Bars
      • Cold Rolled Hexagons
      • Cold Rolled Sheets
      • Cold Rolled All Thread
      Cold Rolled Steel
    • Galvanized
      • Galvanized Sheets
      • Galvanized Square Tubes
      • Galvanized Pipes
      • Galvanized Fence Posts
      • Galvanized Steel Roofing and Sidings
      Galvanized
  • Stainless Steel
    • Type 304
      • Type 304 Round Tubes
      • Type 304 Square Tubes
      • Type 304 Rounds
      • Type 304 Plates
      • Type 304 Angles
      • Type 304 Flats
      • Type 304 Sheets
      • Type 304 Squares
      • Type 304 Pipe
      • Type 304 Rectangular Tubes
      Type 304
  • Aluminum
    • 3003 Aluminum
      • 3003 Aluminum Sheets
      • 3003 Aluminum Plates
      • 3003 Aluminum Diamond Plate
      3003 Aluminum
    • 5052 Aluminum
      • 5052 Aluminum Sheets
      5052 Aluminum
    • 6061 Aluminum
      • 6061 Aluminum Rounds
      • 6061 Aluminum Squares
      • 6061 Aluminum Flat Bars
      • 6061 Aluminum Sheets
      • 6061 Aluminum Plates
      • 6061 Aluminum Square Tubes
      • 6061 Aluminum Rectangular Tubes
      • 6061 Aluminum Round Tubes
      6061 Aluminum
    • 6063 Aluminum
      • 6063 Aluminum Angles
      • 6063 Aluminum Channels
      • 6063 Aluminum Square Tubes
      • 6063 Aluminum Pipe
      6063 Aluminum
  • Hardware
    • Gate & Fence Hardware
      • Door And Gate Closure
        • Hinges
          • Barrel Hinges
          • Butterfly Hinges
        • Locksets
          • Lockbox
          • Door Locks
          • Groove Wheels And Box
          • Slide Bolt
          • Gate Spring
          • Rubber Roller
          • Gate Chain
          • Steel Caps
          • Plastic Caps
          • Post Ball Cap
          • Razorwire
          • Cane Bolt
          • Gate Spring Roller
          • Steel Tubing Ring
        • Gate Operators
          • Eagle Gate Operator
          • Remotes
      Gate & Fence Hardware
    • Fasteners
      • Pan Head Screws
      • Hex Washer Head, Self Drilling Screw
      • Hex Lag Screw
      • One Way Screw
      • Sleeve Anchor
      • Wedge Anchor
      • Hex Washer Head
      Fasteners
    • Power Tools
      • Cutting Disk
      • Flap Disk
      • Grinding Disk
      • Drill Bits
        • Cobalt
        • Masonry
      Power Tools
    • Welding Machine And Supplies
      • Bobco Mini Welding Machine
      • Electrodes
        • Stainless Steel Electrodes
        • Aluminum Welding Electrodes
        • 6013 All Purpose Welding Rod
      • Welding Wires
        • Mig Wire
        • Flux Wire
      • Welding Helmets
      Welding Machine And Supplies
    • Paint And Cleaners
      • Spray Cans
        • Finish
        • Primer
      • Gallons
        • Finish
        • Primer
      • Spray Gun
      • Paint Thinner
      Paint And Cleaners
Search
Advanced Search
My Account
  • Sign In
  • Create an Account
My Cart items item
Stainless Steel Flat Bar 304 - 1/8 Inch X 4 Inch
Image Image

Stainless Steel Flat Bar 304 - 1/8 Inch X 4 Inch

In stock
SKU
SS04FB.125X4.00
$28.73
Be the first to review this product
4" x 1/8" 304 Stainless Steel Flat Bar, 144" length. Conforming to ASTM A276, this austenitic grade offers 73,200 PSI tensile strength and excellent corrosion resistance. Its strength and superior weldability make it a top choice for fabrication. This large width is ideal for base plates, heavy structural supports, and die components. In stock for Los Angeles pickup.

Add to Compare
Product Description
Reviews
Questions 0
More Information
Weight1.700000
bobco_dimensions_width4
bobco_dimensions_length144
bobco_thickness0.125
price_21to500
price_11to200
price_6to100
addon_charges_fraction2
addon_charges_percentage20
addon_charges_simple10
MAX LENGTHS12
FULL LENGTH PRICE87.52
Thickness0.125
Dimension Length144.000000
Dimension Width4.000000
Dimension Height0.125000

Stainless Steel Flat Bar 304 - 1/8 Inch X 4 Inch

This 4" x 1/8" 304 Stainless Steel Flat Bar provides excellent corrosion resistance and weldability for structural applications. Conforming to ASTM A276, it features 73,200 PSI tensile strength, making it ideal for braces, base plates, and framework where durability is required. In stock Los Angeles.

  • 304 Stainless Steel Construction
  • ASTM A276 Certified
  • 73,200 PSI Tensile Strength
  • Excellent Corrosion Resistance
Overview | Specifications | Applications | Finish Options | How to Measure | Order Checklist

Type 304 stainless steel is the most versatile austenitic chromium-nickel alloy, commonly known as "18-8". It is non-magnetic in its annealed state and offers an excellent combination of strength, ductility, and resistance to a wide range of corrosive environments. Conforming to ASTM A276, this flat bar is easily welded and formed, making it a reliable material for diverse fabrication projects requiring long-term performance.

As a large-format 4-inch wide flat bar, this product is exceptionally suited for applications demanding greater surface area and structural integrity. Common uses include fabricating base plates for machinery, heavy-duty structural braces and supports, gussets for frame construction, and components for industrial dies where strength and wear resistance are critical.

Specifications

  • Material: 304 Stainless Steel
  • Standards: ASTM A276
  • Strength/Tensile: 73,200 PSI
  • Dimensions: 4" width x 1/8" thickness x 144" length
  • Finish: Annealed
  • Certifications: Mill Test Report (MTR) Available

Applications

  • Structural & Construction: Base plates, gussets, and supports - excellent strength and corrosion resistance.
  • Food & Beverage: Equipment framework and countertops - hygienic surface and resistance to organic acids.
  • General Fabrication: Flanges and machine parts - valued for its strength and ease of welding.
  • Architecture: Heavy-duty decorative brackets and trim - clean appearance and weather resistance.

Target Users

Fabricators, construction contractors, and engineers rely on 304 Flat Bar for its strength and corrosion resistance in projects throughout the Los Angeles area.

Finish Options

This product comes standard with a mill finish in the annealed condition, which may have some surface imperfections from manufacturing. For specific project requirements, other finishes such as polished or brushed (#4) 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). Ensure measurements are taken with calipers for accuracy.

Example: To order this flat bar, specify "304 Stainless Flat Bar, 4" x 1/8" x 144" length".

Order Checklist

  • Product name and required dimensions (4" x 1/8" x 144")
  • Material specification and quantity
  • Confirm grade (304) meets requirements
  • Surface finish requirements (Annealed)
  • Certifications required (Mill Test Report)
  • Special handling or delivery requirements

Quick Facts

Product
Stainless Steel Flat Bar 304 - 1/8 Inch X 4 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, general fabrication
Location
Los Angeles warehouse - Same-day pickup available
Request a Quote Ask an Expert

Available Sizes

We stock 304 Stainless Flat Bar in widths from 1/2" to 4" and lengths up to 144". This 4" x 1/8" size is available for immediate pickup in Los Angeles.

Custom cutting services available.

Contact for Sizing
Write Your Own Review
You're reviewing:Stainless Steel Flat Bar 304 - 1/8 Inch X 4 Inch
Frequently Bought Together
  • Stainless Steel Flat Bar 304 - 1/8 Inch X 4 Inch
    $28.73
  • Stainless Steel Flat Bar 304 - 3/16" X 4"
    Stainless Steel Flat Bar 304 - 3/16 Inch X 4 Inch
    $36.61
Total price
Customers Also Bought
  1. Stainless Steel Flat Bar 304 - 1/2" X 1-1/4"
    Stainless Steel Flat Bar 304 - 1/2 Inch X 1-1/4 Inch
    $35.11
  2. Stainless Steel Flat Bar 304 - 3/16" X 2"
    Stainless Steel Flat Bar 304 - 3/16 Inch X 2 Inch
    $20.90
  3. Stainless Steel Flat Bar 304 - 3/16" X 1"
    Stainless Steel Flat Bar 304 - 3/16 Inch X 1 Inch
    $12.40
  4. Stainless Steel Flat Bar 304 - 1/8" X 1/2"
    Stainless Steel Flat Bar 304 - 1/8 Inch X 1/2 Inch
    $8.74
  5. Stainless Steel Flat Bar 304 - 1/4" X 2"
    Stainless Steel Flat Bar 304 - 1/4 Inch X 2 Inch
    $24.83
Bobco Truck Delivery
30 miles radius
100% Full Support
We are glad to help at every step
Customer Security
is our first top priority
Carbon free
shipping available
Company Info
  • About Bobco Metals
  • Privacy Policy
  • Return Policy
  • Company Policy
  • Careers
Learn More
  • Terms of Service
  • CA Proposition 65
  • Downloads
  • Pay Offline
  • Blog
Support
  • Questions? We’d be happy to help.
  • Quick RFQ
  • Bobco Metals, LLC, Steel, Los Angeles, CA
Store
  • Find a store near your location.
Bobco Metals
2000 S. Alameda St.
Los Angeles, 90058
Directions Email Call
Email: sales@bobcometal.com
Phone: 866-26STEEL • 877-433-9699
Office Hours:
Mon–Fri: 7:30 AM – 4:30 PM (PST)
Sat: 7:30 AM – 12:00 NN (PST)
Closed on holidays
Sign up for latest offers
Get updates, promos, and stock alerts.
Newsletter
  • Privacy and Cookie Policy
  • Search Terms
  • Advanced Search
  • Orders and Returns
  • Contact Us
  • Quick RFQ
  • Blog
  • Site Map
Copyright © 2020 Bobco Metals. Since 1955. All rights reserved.

BOB BOBSON is waiting to hear from you!

Sign up for our newsletter to get great deals, the latest news about our company, and your favorite product.

Newsletter
Don't show anymore
Find Metal

Find Your Metal Quickly

Search or select your specifications to find the perfect metal product

Loading Metal Data...
⚠️
Selection Preview