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STOODITE 21 A low carbon, molybdenum strengthened, cobalt-chromium alloy. Its excellent high temperature strength and stability are responsible for its use as a hot die material, while its inherent resistance to galling (under self-mated conditions), cavitation erosion, and corrosion have made it a popular fluid valve seat facing alloy.
Features
Weld DC reverse polarity. Use minimum amperage; apply weave bead 3/4" to 1-1/2" wide. For check-free deposits, preheat and slow cool. In applying bare rod, use gas tungsten arc process with 100% Argon aas the shielding gas. Can be machining. Bonds well with weldable alloy steels, including stainless.
