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Keith Stainless Steel Heat Treat Foil is an annealed stainless steel used in the heat treating of tool steel parts. The wrap eliminates the need for Ni-Chrome, box packing and the use of sawdust or other carbonaceous materials. No special controlled atmosphere furnaces are required to use the foil.


Foil Grades
Keith stocks stainless steel heat-treating foil with a .002" thickness in two grades of alloy and temperature ranges ready for immediate shipment to you. Alloy #321 is a high-titanium, soft annealed stainless intended for heat treating parts at temperatures up to 2000F. Alloy #309 may be used at temperatures up to 2240F.


Sizes and Packaging
Alloy #321 foil is available in 20" wide by 100 ft long (167 sq ft) rolls packed in convenient dispenser cartons. Alloy #309 foil is available in 20" wide by 100 ft long (167 sq ft) rolls in dispenser cartons.

Keith Heat Treat Foil is guaranteed to be taken up to temperature.

  • #321 Stainless guaranteed to 2000° Fahrenheit
  • #309 Stainless guaranteed to 2240° Fahrenheit


Obtaining the protection for air-hardened tool steel parts at the temperature you need is a simple task at hand; Keith Stainless Steel Heat Teat Foil is easy to use:

  • Place tool In Foil.
  • Fold over and crimp edges to form an air-tight package.
  • Place package in oven and heat treat in usual way.


Special widths and lengths of foil are also available by special order.

Advantages

  • Typically used in heat-treating applications to reduce scale and discoloration of parts
  • Protects parts from oxide build up
  • No special controlled atmospheric furnaces are required
  • Protects the surface of heat treated parts