5%Cr-0,5%Mo consumables designed
for prolonged elevated temperature
service up to about 600°C, especially
in oil refineries
It is used for welding material of similar composition, usually in
the form of pipe or tubing. The alloy is an air-hardening material and, therefore, when welding with this filler metal, preheat
and postweld heat treatment are required. Other applications are
pressure vessels, boiler superheaters.