CARPENTER GLASS SEALING 52 alloy has a virtually constant rate of thermal expansion to 1050 F. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. Filing Code: FE-101. Producer or source: Carpenter.

KOVAR A is a cobalt, nickel, iron alloy recommended for sealing into hard glass. Has similar expansion curve as glass, makes firm bond between metal and glass, is easy to machine and form, and has high resistance to thermal shock. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on forming, heat treating, machining, joining, and surface treatment. Filing Code: Fe-3. Producer or source: Carborundum Company, Refractories Division.

RODAR is a cobalt, nickel, iron alloy recommended for sealing into hard glass. Has similar expansion curve as glass, makes firm bond between metal and glass, is easy to machine and form, and has high resistance to thermal shock. This datasheet provides information on composition, physical properties, hardness, and tensile properties. It also includes information on forming, heat treating, machining, joining, and surface treatment. Filing Code: Fe-6. Producer or source: Wilbur B. Driver Company.

METGLAS Alloy 2826 (Fe40Ni40P14B6) is a ferromagnetic, high permeability, nickel-iron metallic glass which, when appropriately annealed, yields a material similar to the higher nickel containing permalloys in magnetic properties. Alloy 2826 is a single phase, opaque metallic material with a glass-like structure obtained by a very rapid quench from the liquid state. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as creep. It also includes information on forming and heat treating. Filing Code: Ni-235. Producer or source: Allied Chemical Corporation.

METGLAS MBF-20A is a general-purpose, nickel-base filler metal well suited for brazing stainless steels and heat-resisting nickel alloys. It is supplied as ductile, flexible metallic-glass foil that can be stamped or cut into precision preforms to fit complex joints; it acts as its own shim. It is 100% metal, 100% dense and contains no organic binders to remove by baking. At elevated temperatures in brazed joints it has an outstanding combination of strength, fatigue properites and resistance to oxidation and corrosion. It is used in the aerospace industry for joining internal assemblies. This datasheet provides information on composition, physical properties, microstructure, tensile properties. It also includes information on heat treating. Filing Code: Ni-262. Producer or source: Allied Chemical Corporation.

METGLAS MBF-10A is a brazing foil in ductile, flexible metallic-glass form (a similar grade, MBF-10, is identical except that it has larger dimensional tolerances). This foil provides an alloy with high strength at both elevated and room temperatures. It can be used to join highly stressed stainless steels and heat-resisting alloy components. Major application is in fabricating high-temperature jet-engine parts. This datasheet provides information on composition, physical properties, microstructure, tensile properties. It also includes information on heat treating and joining. Filing Code: Ni-272. Producer or source: Allied Corporation.

METGLAS MBF-30A is a brazing foil in ductile, flexible metallic-glass form (a similar grade, MBF-30, is identical except that it has larger dimensional tolerances). This foil provides an alloy with high strength at both elevated and room temperatures. It can be used to join highly stressed stainless steel and heat-resisting alloy components. The excellent flow characteristics of this alloy recommend it for assemblies with good fit-up and tight-tolerance joints. It works well on thin-foil, honeycomb designs and on fairly heavy components. This datasheet provides information on composition, physical properties, and microstructure. It also includes information on heat treating. Filing Code: Ni-273. Producer or source: Allied Corporation.

METGLAS MBF-60A is a brazing foil in ductile, flexible metallic-glass form (a similar grade, MBF-60, is identical except that it has larger dimensional tolerances). It is an excellent choice of filler metal for large production runs of low-to-medium stressed assemblies. Its excellent flow characteristics and low joint erosion recommend its selection, despite the fact that it has only moderate strength in comparison with other filler metals of this family. It is boron-free and thus is recommended for nuclear reactor applications. This datasheet provides information on composition, physical properties, microstructure, and hardness. It also includes information on forming, heat treating, and joining. Filing Code: Ni-278. Producer or source: Allied Corporation.

METGLAS MBF-15A is a brazing foil in ductile, flexible metallic-glass form (a similar grade, MBF-15, is identical except that it has larger dimensional tolerances). It provides high strength with good resistance against oxidation and corrosion at elevated temperatures. This alloy also withstands the stresses caused by phase changes in carbon steels and martensitic stainless steels. Because of this combination of characteristics, it is used widely for joining aircraft engine components. 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-282. Producer or source: Allied Corporation.

METGLAS MBF-75A is a brazing foil in ductile, flexible metallic-glass form (a similar grade, MBF-75, is identical except that it has larger dimensional tolerances). It has excellent high-temperature strength and flows readily into narrow joints. Its high solidus temperature facilitates heat treatment of some superalloys without remelting the joint. It is recommended for joining high-temperature alloys and stainless steels. This datasheet provides information on composition, physical properties, microstructure, and hardness. It also includes information on joining. Filing Code: Ni-286. Producer or source: Allied Corporation.

METGLAS MBF-80A is a brazing foil in ductile, flexible metallic-glass form (a similar grade, MBF-80, is identical except that it has larger dimensional tolerances). It provides high-strength brazements at elevated temperatures and good moderate-temperature resistance to oxidation and corrosion. Its sluggish flow fills wide gaps up to 0.100 mm (0.004 inch). It is an excellent choice 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-290. Producer or source: Allied Corporation.

METGLAS MBF-35A is a brazing foil in ductile flexible metallic-glass form (a similar grade, MBF-35, is identical except that it has larger dimensional tolerances. It is a low-temperature filler metal foil designed for joining superalloys where the brazing operation should be done simultaneously during solution treatment. This foil exhibits excellent flow characteristics and will flow well into narrow joints. It is not recommended for use in severe corrosive atmospheres. 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-296. Producer or source: Allied Corporation.

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.

METGLAS MBF-17A is a brazing foil in ductile, flexible metallic-glass form (A similar grade, MBF-17, is identical except that it has larger dimensional tolerances). It provides high strength at both elevated and room temperatures with moderate oxidation and corrosion resistance. An example of application is brazing turbine blades in truck engines where high strength at high temperatures is required. This datasheet provides information on composition, physical properties, and microstructure. It also includes information on forming, heat treating, and joining. Filing Code: Ni-303. Producer or source: Allied Corporation.

METGLAS MBF-65A is a brazing foil in ductile, flexible metallic-glass form (A similar grade, MBF-65 is identical except that it has larger dimensional tolerances). The chromium content (nominally 14%) provides superior resistance to corrosion and oxidation. This alloy is recommended for inert or vacuum furnace brazing to provide high-temperature-service joints especially for components of thin cross section. This datasheet provides information on composition, physical properties, microstructure, and hardness. It also includes information on forming, heat treating, and joining. Filing Code: Ni-306. Producer or source: Allied Corporation.

UNISEAL 42 is a closely controlled thermal expansion iron alloy used for glass-to-metal and metal-to-ceramic seals. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on forming, heat treating, joining, and surface treatment. Filing Code: Fe-44. Producer or source: Cyclops Corporation.

UNISEAL 52 is a nickel-iron alloy produced for glass-to-metal seals with higher-than-normal thermal expansion glasses such as Types O120 and 9010. It is used in hermetically-sealed magnetic dry reed switches, compression seals, and ceramic seals where expansion is required to be almost linear to 1000 F. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on forming, heat treating, machining, joining, and surface treatment. Filing Code: Ni-156. Producer or source: Cyclops Corporation.

UNISEAL 29-17 is a controlled expansion iron-base alloy containing nickel and cobalt. It is widely used for glass-to-metal seals with borosilicate glasses commonly employed in electronic power tube envelopes. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on high temperature performance as well as forming, heat treating, machining, joining, and surface treatment. Filing Code: Fe-45. Producer or source: Cyclops Corporation.

CARPENTER GLASS SEALING 42 has wide-ranging applications in glass-to-metal and ceramic-to-metal sealing. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on forming, heat treating, joining, and surface treatment. Filing Code: FE-102. Producer or source: Carpenter.

THERLO, also known as D-H Alloy No. 373, is an iron-nickel-cobalt alloy ideally suited for sealing to glass. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on forming, heat treating, machining, joining, and surface treatment. Filing Code: Fe-11. Producer or source: Driver-Harris Company. Originally published July 1956, revised August 1961.