Allegheny Ludlum No. 2 and No. 5 relay steels are iron/silicon alloys. They are soft magnetic alloys that combine high magnetic permeability, low residual magnetization and low coercive force with good mechanical properties and fabricability. This datasheet provides information on composition and physical properties. It also includes information on forming, heat treating, and machining. Filing Code: Fe-97. Producer or source: Allegheny Ludlum Corporation.

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..

ULTRONZE is a copper alloy also known as Olin Alloy 654. It bridges the gap between standard high-performance copper alloys and beryllium-copper alloys, thus enabling the design of parts with properties previously only attainable with more expensive materials. The alloy has superior stress-relaxation characteristics, good bend performance and excellent corrosion resistance. Among its typical uses are electrical connectors, fuse clips and relay springs. 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 machining. Filing Code: Cu-417. Producer or source: Olin Brass.

MAGNIFER 75 is a soft magnetic nickel-iron alloy containing about 5% copper and 2% chromium. It offers very high permeability, very low coercive force and minimum hysteresis loss. It is used primarily for transformers, tape-wound toroids, laminations, shielding and relay parts. 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: Ni-294. Producer or source: Vereingte Deutsche Metallwerke AG.

ALLOY 48 is a vacuum-melted, 48% nickel-iron alloy designed for high permeability, and low core losses. It is ideal in applications requiring efficient magnetic core materials, such as audio and instrument transformers, instrument relays, and many other communication equipment devices. It is excellent for rotor and stator laminations, and is also a very effective magnetic shielding material. 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: Fe-52. Producer or source: Magnetics Specialty Metals Division. See also Alloy Digest Fe-96, April 1992.

Carpenter 430FR Solenoid Quality stainless steel is a ferritic chromium-iron alloy developed especially for A.C. and D.C. magnetic circuit applications such as solenoid valve core components and electromagnetic relay cores. The electrical resistivity of 430FR is approximately 25% higher than other commercially available 430F stainless. Increased electrical resistivity provides better performance of magnetic components, particularly at power frequencies and high magnetic flux density. This datasheet provides information on composition, physical properties, and hardness. It also includes information on corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: SS-337. Producer or source: Carpenter.

Hitenso-1622 is a copper-cadmium alloy characterized by high strength, abrasion resistance and relatively high electrical conductivity. (Formerly known as Hitenso BB-961). It is recommended for electrical equipment, trolley wire, low temperature transmission lines and relays. 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: Cu-189. Producer or source: Anaconda American Brass Company.

BLENDALLOY 25-5200 is a 52% nickel-iron controlled expansion, glass-to-metal sealing alloy recommended for dry reed switches and mercury wetted relays. 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: Ni-136. Producer or source: Magnetics Inc..

Alfenol is an unoriented 12% to 16% aluminum-iron alloy which has high electrical resistivity and low eddy current losses. It is furnished in the 12% aluminum and in the 16% aluminum grades. The recommended uses are for relays, gyro mechanisms, servo-mechanisms and toroid tape cores. This datasheet provides information on composition, physical properties, hardness, and tensile properties. It also includes information on heat treating. Filing Code: Fe-38. Producer or source: Carpenter.

Hiperco 35 is an iron-cobalt type of soft magnetic material recommended for use in motors, generators, transformers and relays at temperature above 950 F. It yields the highest known saturation value of 24,500 gausses. This datasheet provides information on composition, physical properties, hardness, and tensile properties. It also includes information on forming, heat treating, machining, and joining. Filing Code: Fe-41. Producer or source: Westinghouse Electric Corporation.

MAGNIFER 7904 is a soft magnetic nickel-iron alloy containing about 5% molybdenum. It offers extremely high permeability, very low coercive force and minimum hysteresis loss. It is used primarily for transformers, tape-wound troids, laminations, shielding and relay parts. 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: Ni-291. Producer or source: Vereingte Deutsche Metallwerke AG. Originally published September 1983, revised February 1984.

MAGNIFER 50 is a soft magnetic iron-nickel alloy containing about 48% nickel. It has a saturation induction of 1.55T and a high permeability. It exhibits the highest saturation induction obtainable with iron-nickel alloys. Typical applications are (1) Low-frequency power transducers, (2) Chokes (Coils), (3) Relay parts and (4) Integrating current transformers for Fi-protective switches. 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-70. Producer or source: VDM Technologies Corporation.

Copper Alloy No. C43400 is a copper-zinc-tin alloy that can be cold worked readily by all conventional processes. It has moderate strength and good ductility. This alloy is used typically for electrical switch parts, contacts and relay springs. This datasheet provides information on composition, physical properties, hardness, elasticity, tensile properties, and shear strength. It also includes information on corrosion resistance as well as forming, heat treating, machining, joining, and surface treatment. Filing Code: Cu-488. Producer or source: Brass mills.

CDA ALLOY 725 (Now known as CDA ALLOY C72500) is a copper-nickel-tin alloy designed to improve the reliability of electrical connectors by resisting oxidation and thus providing improved solderability. It has a pleasant silver color and excellent joinability by soldering, brazing and spot and butt resistance welding. Its uses include electrical connectors, relay and switch springs, and builders' hardware. The revision is being made to correct an error in composition and for general updating. The original name (CDA ALLOY 725) is being retained because of the correction in composition. 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: Cu-229. Producer or source: Copper and copper alloy mills. Originally published March 1971, revised July 1985.

Copper Alloy No. C70400 is a 5.5% nickel-copper alloy characterized by resistance to corrosion by high-velocity seawater, resistance to stress-corrosion cracking, and retention of strength at moderately elevated temperatures. It responds well to both hot and cold-working operations. Among its many uses are springs, switches, heat exchangers, salt-water piping and relays. 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: Cu-500. Producer or source: Copper and copper alloy mills.

Copper Alloy No. C72800 is a copper-nickel-tin spinodal alloy designed for high strength and excellent resistance to corrosion by salt water. It can be fabricated by the commonly-used processes. Among its many uses are springs, electrical contracts and relay elements, especially in marine environments and other places where resistance to salt water is required. This revision is being made to correct the section on Heat Treatment (specifically aging) and to expand the section on Corrosion Resistance. 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: Cu-503. Producer or source: Copper and copper alloy mills. Originally published November 1985, revised April 1986.

CMI-B Magnetic Iron is an ultra-low-carbon magnetic iron especially processed for good magnetic properties and processability. It is used for relays and other electromagnetic applications. 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: Fe-73. Producer or source: Connecticut Metals Incorporated.

CARPENTER SILICON CORE IRON C is melted in an electric furnace to exacting chemical specifications. Also it is carefully controlled by tool-steel practice in rolling and annealing to produce a fine-grained magnetic core iron of uniform quality. It is especially well adapted for making components such as solenoid switches, armatures, pole pieces, relays and cores. 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-74. Producer or source: Carpenter.

Hiperco 27 is an iron-cobalt type of soft magnetic material recommended for use in motors, generators, transformers and relays and at temperatures above 950 F. It is used for high flux levels. This datasheet provides information on composition, physical properties, hardness, and tensile properties as well as creep. It also includes information on high temperature performance as well as forming, heat treating, machining, and joining. Filing Code: Fe-26. Producer or source: Westinghouse Electric Corporation.

Revere No. 145 is a free-cutting grade of copper recommended for high conductivity parts, such as electrical connectors, relays, fasteners, contacts, etc. 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: Cu-166. Producer or source: Revere Copper and Brass Inc..