CERAMVAR is an iron, nickel, cobalt alloy specially designed and suited for ceramic-to-metal sealing. It has expansion characteristics closely matching those of high temperature alumina ceramics. This datasheet provides information on composition, physical properties, and elasticity. It also includes information on forming, machining, joining, and surface treatment. Filing Code: Fe-21. Producer or source: Wilbur B. Driver Company.

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.

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.

ALLOY 52 is a controlled-expansion alloy developed for glass-to-metal seals for some of the soft glasses and some ceramics. Its rate of expansion is almost constant up to approximately 1050 F (565 C). This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: Ni-226. Producer or source: Magnetics Specialty Metals Division.

TECHALLOY GLASSEAL 52 is a nickel-iron alloy produced for glass-to-metal seals with higher than normal thermal-expansion glasses such as Types 0120 and 9010, and certain ceramics. It has relatively good mechanical properties: a tensile strength of 80,000 psi and an elongation of 35%. It is used in a number of applications 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-260. Producer or source: Techalloy Company Inc..

The 50 Nickel-Iron Alloy is recommended for glass-to-metal seals. It is used with such glasses as Types 0120 and 9010 that have higher than normal thermal expansion and with certain ceramics. It is used in a number of applications where expansion must be almost linear to 1000 F. The 50 Nickel-Iron Alloy has relatively good mechanical properties; in fact, at room temperature it has a tensile strength of 80,000 psi and an elongation of 35%. 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-276. Producer or source: Mills that produce iron-nickel alloys.

SEALVAR is an iron-nickel-cobalt strip alloy primarily used for making hermetic seals with harder glasses and ceramics. It is distinguished by its high purity, closely controlled chemistry and very low carbon level. The alloy meets specified ASTM F 15-78 (83) expansion coefficients. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. Filing Code: FE-119. Producer or source: AMETEK Specialty Metal Products.

N426 is an Fe-Ni-Cr alloy for sealing both glass and ceramics. This datasheet provides information on composition, physical properties, hardness, and tensile properties. It also includes information on forming. Filing Code: FE-145. Producer or source: Metalimphy Precision Alloys.

N475 and N485 are Fe-Ni-Cr sealing alloys used for bonding soft leads, lead-free glasses, and ceramics. This datasheet provides information on composition, physical properties, hardness, and tensile properties. It also includes information on forming. Filing Code: FE-146. Producer or source: Metalimphy Precision Alloys.

The 42 Nickel-Iron alloy has the lowest expansivity of the Iron-Nickel alloys that are commonly used for glass-sealing applications. Its thermal expansion closely matches the 1075 glass and it is sometimes used for sealing action with the 0120 and 0010 glasses. It is made close metallurgical control to provide uniformity of performance. Its many uses include industrial lamps, ceramic-to-glass seals, and sealed-beam automobile headlamps. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on corrosion resistance as well as forming, heat treating, machining, joining, and surface treatment. Filing Code: Fe-66. Producer or source: Iron-nickel alloy mills.

Carpenter Glass Sealing 27 is a ductile chromium-iron alloy that has been used for strong glass-to-metal seals in electronic and vacuum tubes, and incandescent and fluorescent lamps. It exhibits no phase transformation up to 1150 deg C (2100 deg F). This datasheet provides information on composition, physical properties, and elasticity. It also includes information on corrosion resistance. Filing Code: FE-136. Producer or source: Carpenter Technology Corporation.

TECHALLOY GLASSEAL 42 is an iron-nickel alloy with thermal expansion that closely matches the 1075 glass. Also, it is sometimes used for sealing action for the 0120 and 0010 glasses. It has the lowest expansivity of the iron-nickel alloys that are commonly used for glass-sealing applications. It is made under strict metallurgical control to provide uniformity of performance. Among its uses are sealed-beam automobile headlamps, ceramic-to-glass seals and industrial lamps. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on corrosion resistance as well as forming, heat treating, machining, joining, and surface treatment. Filing Code: Fe-59. Producer or source: Techalloy Company Inc..

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.

These alloys are all in the nickel-iron alloy system and are designed with expansion rates closely matching those of certain ceramic materials, including glasses. This datasheet provides information on composition, physical properties, microstructure, hardness, elasticity, and tensile properties. Filing Code: FE-120. Producer or source: AMETEK Specialty Metal Products.

OSTALLOY 158 is a bismuth-base, eutectic alloy that melts at 158 F (70 C). It provides engineers and technicians with an easily castable material that is ready for use as soon as it freezes. It can be recovered easily and recycled into new uses any number of times. Its many uses include holding jet engine blades for machining and broaching, support for bending tubing and extrusions and seals for annealing and nitriding furnaces. This datasheet provides information on composition, physical properties, hardness, and tensile properties. It also includes information on casting, forming, heat treating, and machining. Filing Code: Bi-20. Producer or source: Arconium Corporation of America, A.J Oster Company.

A-L 42 is intended as a controlled-expansion alloy for applications in the electronics and electrical industries. It is used in conjunction with certain glass (0120, 0010, 1075, etc.) and other nonmetallic materials in sealing applications. A-L 42 is AOD (Argon Oxygen Decarburization) refined in 100-ton heats to insure high quality and uniformity. Its applications include semi-conductor lead frames, sealed-beam automobile headlamps and industrial lamps. This datasheet provides information on composition, physical properties, hardness, and elasticity. It also includes information on corrosion resistance as well as forming, heat treating, machining, joining, and surface treatment. Filing Code: Fe-62. Producer or source: Allegheny Ludlum Corporation.

Carpenter Glass Sealing 42-6 alloy has been used for sealing to Corning 0120 glass. A special thermal treatment develops a tightly adherent oxide beneficial to obtaining hermetic seals. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on high temperature performance and corrosion resistance as well as forming and heat treating. Filing Code: FE-137. Producer or source: Carpenter Technology Corporation.

INDALLOY No. 4 is the metallic element indium. It is a very versatile, malleable and soft metal; it is softer even than lead. Indium remains malleable at temperatures approaching absolute zero; therefore, it is an excellent for a variety of applications including gaskets and seals. It is a useful element to alloy with other metals in the preparation of solders and fusible alloys. This datasheet provides information on composition, physical properties, microstructure, and elasticity. It also includes information on high temperature performance and corrosion resistance as well as forming, heat treating, and joining. Filing Code: In-1. Producer or source: Indium Corporation of America.

SILICON CARBIDE SC-221 is a beta-phase silicon carbide made from the pressureless sintering method. It possesses excellent mechanical strength at high temperature (4-point bending strength of 71ksi [490 MPa] at 1400 C [2552 F]). This datasheet provides information on physical properties, hardness, elasticity, and bend strength as well as fracture toughness. Filing Code: Cer-5. Producer or source: Kyocera America Inc..