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..

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 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.

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.

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.

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.

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.

NILO alloy 475 is an iron-nickel-chromium glass-sealing alloy. This datasheet provides information on composition, physical properties, hardness, and tensile properties. It also includes information on corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: Fe-82. Producer or source: Inco Alloys International Inc..

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.

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.

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.

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.

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.

Safeni 52 is a soft magnetic iron-nickel alloy with high magnetic permeability, low coercive force, a low content of nonmetallic inclusions, and thermal expansion properties that make it suitable for glass-sealing applications. This datasheet provides information on composition, physical properties, hardness, and tensile properties. It also includes information on forming and heat treating. Filing Code: Fe-161. Producer or source: Sandvik Steel Company.

Wieland-K11 is a pure, oxygen-free copper for many electronic and glass sealing applications. This datasheet provides information on composition, physical properties, hardness, elasticity, tensile properties, and bend strength. It also includes information on corrosion resistance as well as forming, heat treating, and joining. Filing Code: Cu-794. Producer or source: Wieland Metals Inc., Wieland-Werke AG.

TECHALLOY GLASSEAL 29-17 is an iron-nickel-cobalt alloy with a thermal expansion rate that is unlike most metals and closely matches the thermal expansion characteristics of borosilicate glass, PYREX glass, and other similar low-expansion materials. It assures precisely controlled expansion properties that are ideal for usage in glass-to-metal seals. Typical applications are transmitting tubes, relays and electronic power tube envelopes. This datasheet provides information on composition, physical properties, elasticity, and tensile properties. It also includes information on high temperature performance and corrosion resistance as well as forming, heat treating, machining, joining, and surface treatment. Filing Code: Fe-60. Producer or source: Techalloy Company Inc..

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.

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.

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..