Copper Sheet Aluminum Sheet Stainless Steel Sheet Specialty Metal Alloys

Stainless Steel Foil Alloy 304

These alloys are the most common and economical stainless alloys on the market. They are non-heat treatable alloys, which makes them perfect for tool wrap applications when heat treating parts. It is extremely resistant to corrosion, and heat oxidation, for applications up to approximately 1500 degrees Fahrenheit. They are non-magnetic in the annealed condition. At times in the foil thicknesses, the individual production lots can be certified to 302, 304 and 304L standards.

The drawback to strictly 302 alloy, is that in extreme conditions, carbide precipitation can occur. Type 304 alloy alleviates this problem by decreasing the carbon content and thereby eliminating the possibility of intergranular corrosion. This low carbon alloy is most often utilized for application requiring welding. An Extra Low Carbon Alloy, 304L, is also available for severe welding applications. All the alloys are popular in food and dairy industries and for pharmaceutical equipment. It is useful in applications where good mechanical properties and corrosion resistance are essential. These alloys are used in our tool wrap rolls for companies’ heat treating parts.

Standard Specifications: AMS A240, UNS S30400


1   Inches/inch/°F x 106 from 68°F to 572°F (20°C to 300°C)

2   Lbs.per at 68°F (Annealed) ( x 27.68 gms./cu.Cm. at 20°C)

3   % IACS at 68°F (20°C) as annealed

4   % in 2 inches

5   x 106 PSI, tension

6   0.020 gauge and above (30T scale)

7   x 1000 psi

8   9.4 BTU per sq.ft.per hr. per °F

9   0.2% offset

Call us at 888-539-5602 today for a quote or simply get an online quote. You may also reach us via email at sales@cometmetals.comThe specifications shown on these pages are not for design purposes.

View the Stainless Steel Guide


Square Feet Conversion Chart

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