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  • 304 Stainless Steel Hollow Rectangular Bar, Inch, ASTM A554
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304 Stainless Steel Hollow Rectangular Bar, Inch, ASTM A554

Available in multiple versions

4 customer reviews

Price: $6.54 - $909.74
Product Specifications
Brand Name Small Parts
Shape Hollow Rectangular Bar
Material Type Stainless Steel
Grade 304
System of Measurement Inch
Length Tolerance +0.125", -0.000  inches
Specification Met ASTM A554
UNSPSC Code 30000000

The 304 stainless steel square tubing meets American Society for Testing an... Read full product description



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Product Features

  • 304 stainless steel is the most commonly used grade of stainless steel
  • Provides combination of corrosion resistance, weldability, and formability
  • Meets ASTM A554 specifications

Product Details

  • Shipping Information: View shipping rates and policies
  • Domestic Shipping: Item can be shipped within U.S.
  • International Shipping: This item is not eligible for international shipping. Learn More
  • ASIN: B0068UDREW
  • Average Customer Review: 4.8 out of 5 stars  See all reviews (4 customer reviews)
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Product Description

The 304 stainless steel square tubing meets American Society for Testing and Materials International ASTM A554 specifications. The 304 stainless steel grade is a general-purpose material that combines corrosion resistance, weldability, and formability, making it the most commonly used grade of stainless steel. An austenitic stainless steel that is one of the 18-8 grades, 304 can be cold worked to increase its hardness and strength while maintaining most of its formability. The material is typically nonmagnetic but may become slightly magnetic when cold worked.

Stainless steel is an iron alloy with resistance to staining and rusting in many environments where steel would typically degrade. The chemical composition of each grade creates a grain structure that falls into one of five classes: austenitic, duplex, ferritic, martensitic, and precipitation hardening. The austenitic class contains the most formable, weldable, and corrosion-resistant stainless steel grades, but they cannot be heat treated. The duplex class offers high resistance to pitting and chloride stress corrosion cracking. Duplex grades are heat treatable and roughly twice as strong as austenitic grades. The ferritic class contains moderately formable and corrosion-resistant grades compared to other stainless steel classes, but they cannot be heat treated. The martensitic class includes some of the hardest and strongest stainless steel grades that also offer mild corrosion resistance, high hardness, and good formability. Martensitic grades can be heat treated. The precipitation-hardening (PH) class can be heat treated after fabrication to achieve some of the highest hardness ratings in stainless steel.

Tensile strength, used to indicate the material’s overall strength, is the peak stress it can withstand before it breaks. Corrosion resistance describes the material's ability to prevent deterioration caused by atmosphere, moisture, or other medium. Wear resistance indicates the ability to prevent surface damage caused by contact with other surfaces. Toughness describes the material's ability to absorb energy before breaking, while hardness (commonly measured as indentation hardness) describes its resistance to permanent surface deformation. Formability indicates how easily the material can be permanently shaped. Machinability describes how easily it can be cut, shaped, finished, or otherwise machined, while weldability characterizes the ability to be welded. Magnetism characterizes how much the material is repelled by or attracted to a magnet.


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Most Helpful Customer Reviews

Wall Thickness: 0.12Overall Width: 1Number of Items: 1Overall Length: 48Thickness: 1 Verified Purchase
I needed 20-24 feet of material for a wall mounted sign bracket, wanted stainless instead of aluminum for strength as well as low maintenance, and did not want to run around to various local suppliers hoping to find exactly what I needed. The material from the Amazon supplier seemed competitively priced, arrived on schedule within a few days, was well packaged with no dents, scratches or scuffs, the dimensions were exactly as specified, and it welded predictably.
For my application I did not need to polish it, but based on my post-weld clean up I suspect it would have yielded acceptable results after reasonable effort. I will be ordering more for another project.
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Wall Thickness: 0.065Overall Width: 1Number of Items: 1Overall Length: 36Thickness: 1 Verified Purchase
Tube came very well packaged so it was not dented anywhere. I fabricated a glider wing-runner of my own design and with light sanding on the stainless tube four sides, I was able to fit it inside telescope fashion to an extruded aluminum square tube slick as heck! This allows this wing-runner to be adjustably clamped over the wing when placed in this jig so that one person can install a heavy wing; works great.
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By Cesare A. on October 15, 2014
Wall Thickness: 0.18Overall Width: 1-1/2Number of Items: 1Overall Length: 72Thickness: 1-1/2 Verified Purchase
Not sure what to say, it's 304 stainless steel square tube exactly as described
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Wall Thickness: 0.12Overall Width: 1Number of Items: 1Overall Length: 96Thickness: 1 Verified Purchase
Excellent product. Hi-Grade which is performing the task wonderfully well
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