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geodetic measurements
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Journal Articles
Alloy Digest (1975) 24 (12): Fe-55.
Published: 01 December 1975
... and wires for geodetic measurements. 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-55...
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ALLOY 36 is an iron-36% nickel alloy with the lowest thermal coefficient of expansion among commercial alloys. It is recommended for applications that require very low dimensional changes with variations in temperature. Among many applications it is used for length standards, bimetals and tapes and wires for geodetic measurements. 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-55. Producer or source: Magnetics Specialty Metals Division.
Journal Articles
Alloy Digest (1955) 4 (8): Fe-8.
Published: 01 August 1955
... rolled and cold drawn bars, wire, strip, & forgings. Applications: Tapes and wires for geodetic measurements, length standards, instruments requiring fixed distances be- tween points which must be independent of tempera- ture, variable condensers, textile machinery parts, ther- mostatic and other...
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NILVAR is a 36% nickel-iron alloy having the lowest coefficient of expansion, recommended for applications requiring no dimensional changes with temperature variations. 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-8. Producer or source: Driver-Harris Company.
Journal Articles
Alloy Digest (1970) 19 (6): Fe-43.
Published: 01 June 1970
... require a stress-relieving heat treatment for stabilization if the material is to be used for high-precision uork. The material is never used above it thermal inflection point. Forms Available: Hot rolled bars. wire, strip. sheet. plate and billets. Applications: Tapes and wires for geodetic measurements...
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UNISPAN 36 is a 36% nickel-iron alloy having low thermal expansion in a -400 F to +350 F range. It is recommended for parts in precision machinery and for applications where dimensional changes due to temperature variation must be minimized. 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-43. Producer or source: Cyclops Corporation.
Journal Articles
Alloy Digest (1971) 20 (1): Fe-46.
Published: 01 January 1971
... and tubing. Applications: Length standards, tapes and wires for geodetic measurements, instruments requiring fried distances between points which must be independent of temperatures, variable condensers, textile machinev parts, thermostatic and other temperature control or indicating devices, bimetals. radio...
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UNISPAN LR35 offers the lowest coefficient of thermal expansion of any alloy now available. It is a low residual modification of UNISPAN 36 for fully achieving the demanding operational level of precision equipment. This datasheet provides information on composition, physical properties, hardness, and tensile properties. It also includes information on high temperature performance and corrosion resistance as well as forming, heat treating, machining, and surface treatment. Filing Code: Fe-46. Producer or source: Cyclops Corporation.
Journal Articles
Alloy Digest (1964) 13 (3): Fe-24.
Published: 01 March 1964
... of lnvar have been fairly common. If silver soldering is done manually, the parts should be preheated to 8000F and slowly cooled. Tapes and wires for geodetic measurements, length standards, instruments requiring fixed distances between points which must be independent of temper- azure, variable condensers...
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INVAR is a 36% nickel-iron alloy having the lowest coefficient of expansion, recommended for applications requiring no dimensional changes with temperature variations. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on low and high temperature performance, and corrosion resistance as well as forming, heat treating, machining, joining, and surface treatment. Filing Code: Fe-24. Producer or source: Carpenter.
