METGLAS MBF-90/MBF-90A is a brazing foil in ductile, flexible metallic-glass form (a similar grade, MBF-90, is identical except that is has larger dimensional tolerances. It is suitable for joining stainless steels and superalloys, including those containing aluminum and titanium. It provides high strength at elevated temperatures. This foil flows well into deep joints with narrow clearances. It is excellent for diffusion brazing. This datasheet provides information on composition, physical properties, and microstructure. It also includes information on corrosion resistance as well as forming, heat treating, and joining. Filing Code: Ni-298. Producer or source: Allied Corporation.