Radiant tubes for tougher conditions at the burner leg

In some furnaces not all parts of a radiant tube is exposed to extreme temperatures. In these cases, an alternative is to use Kanthal® APM or Kanthal® APMT iron-chromium-aluminium (FeCrAl) alloy for the burner leg and a nickel-chromium (NiCr) alloy for the bend and the return tube.

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Temperature distribution in the all-Kanthal APM or all-Kanthal APMT design and a conventional U-tube design.

Sandvik has delivered radiant tubes with different material combinations since 2008, with excellent result. Contact us for references.

Read more about Kanthal® APM and Kanthal® APMT FeCrAl alloys