NICKEL BASED ALLOY WITH HIGH MELTING RANGE SUITABLE FOR BRAZING SUPER AUSTENITIC STEEL

摘要

The invention discloses a nickel based brazing filler metal in form of an alloy containing or consisting of between 20wt% and 35wt% chromium, between 7wt% and 15wt% iron and between 2.5wt% and 9wt% silicon, between 0wt% and 15wt% molybdenum, unavoidable impurities and the balance being nickel. The solidus temperature of the brazing filler shall be between 1140°C and 1240°C. The brazing filler metal is suitable for production of catalytic converters and heat exchangers. The invention also discloses a brazing method.