Tubular Transition Joints are usually machined out from clad plates and these are used to weld dissimilar tubes. These are generally of stainless steel and aluminium used to weld aluminium alloy and stainless steel tubes in cryogenic and nuclear applications.

Typical uses are to insert stainless steel valves into aluminium piping, to connect stainless steel piping to aluminium heat exchangers. These are used in air separation plants, helium liquifiers, natural gas liquification plants, fuel systems, and space simulation chambers, etc. For better low temperature, mechanical strength and vacuum tightness, usually a thin interlayer of tantalum or silver is interposed.