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In the common sense metal expand when heated however, we are able to offer metal which has no thermal expansion.
We have developed various low and zero thermal expansion alloy (invariable alloy) which applicable various kinds of application.
Followings are our series of low thermal expansion alloys (Invariable alloy) however, we are also able to make customized invar according to customer’s requirement which have additional special characteristics.

Characteristic

IC-ZX	The ultimate zero expansion material surpassing Super Invar Coefficient of thermal expansion 0 ppm/K Lower temperature limit 253 K Applications ・・・ Semiconductor production equipments, FPD manufacturing equipments, Inspection tools for precision measurement
IC-DX	The highest grade Invar ∙ Covers everything: ZERO thermal expansion, performance stability down to cryogenic temp., high rigidity and corrosion resistance Coefficient of thermal expansion 0 ppm/K Lower temperature limit 4 K Young’s modulus 176 GPa Corrosion resistance equivalent to SUS304 Applications ・・・ Next-generation observation instruments for ultra-large telescope, Radio telescopes, Gravity wave observation devices
IC-LTX	Zero expansion invar usable at 173K Coefficient of thermal expansion 0 ppm/K Lower temperature limit 173 K Applications ・・・ Astronomical observation satellites, Infrared telescopes
IC-36FS	Free-cutting super invar Coefficient of thermal expansion 1 ppm/K (below 1/10 of iron) The most abundant material in our brand invar alloys, which makes it possible to sell small lots and to deliver with a short lead time. Applications ・・・ Semiconductor production equipments, FPD manufacturing equipments, Optical lens parts
IC-36	Standard invar Coefficient of thermal expansion 1.5 ppm/K Lower temperature limit 73 K Applications ・・・ Precision press machines, Optical communication devices
IC-362A	Rust resistant invar equivalent to SUS410 Coefficient of thermal expansion 2 ppm/K High rust resistance in neutral environment Applications ・・・ Polishing machines for aspherical lens, Semiconductor production equipments
IC-364	Invar with adjusted coefficient of thermal expansion according to customer requirements Coefficient of thermal expansion 4 ppm/K Applications・・・Parts for bonding with glass
SLE-2	Corrosion resistant invar equivalent to SUS304 Cofficient of thermal expansion 5 ppm/K Applications・・・Parts for bonding with ceramics
SLE-20A	Corrosion resistant invar equivalent to SUS410 Coefficient of thermal expansion 3 ppm/K Applications ・・・Wafer polishing surface plates, Medical precision equipments
VIC-65	Invar for high temperature use Invar alloy with coefficient of thermal expansion of 5ppm/K from room temperature to 623 K Applications・・・CFRP molds for aircraft, Hard glass sealing materials

Reference