Zero expansion - does not undergo structural transformation up to -269°C! The Young's modulus is 1.5 times that of commercial products!
"IC-DX" is a low thermal expansion alloy based on Fe-Co-Cr. Since it does not contain Ni, which raises the Ms point, it can achieve both zero thermal expansion and low-temperature structural stability, making it suitable for use in low-temperature environments. This material is being evaluated for use as a pad material for bonding 200mm square fused quartz (aspheric mirrors). Thermal expansion at the operating temperature of 77K (liquid nitrogen) and during alignment adjustments from room temperature to 77K is important. 【Features】 ■ Zero expansion, ultra-low temperature stability, high rigidity, corrosion resistance ■ Coefficient of thermal expansion: 0 ppm/℃ ■ Lower limit temperature for low-temperature use: minus 269℃ ■ Young's modulus: 176 GPa ■ Corrosion resistance equivalent to SUS304 *For more details, please refer to the PDF document or feel free to contact us.
Inquire About This Product
basic information
【Specifications】 <Physical Properties> ■Coefficient of Thermal Expansion ppm/℃ (25–50℃): -0.04 ■Young's Modulus GPa: 176 ■Thermal Conductivity W/m℃: 15 ■Specific Heat J/kg℃: 490 <Mechanical Properties> ■Tensile Strength MPa: 575 ■Elongation %: 57 ■Hardness HRB: 76 *For more details, please refer to the PDF document or feel free to contact us.
Price range
Delivery Time
Applications/Examples of results
For more details, please refer to the PDF document or feel free to contact us.
catalog（1）
Download All Catalogs
Company information
Our company started in 1949 as a special steel manufacturing company in Kawagoe City, Saitama Prefecture. During this time, we have supported the foundation of Japanese manufacturing as a proposal-based special steel manufacturer, developing metal materials tailored to our customers' needs. Our main product, low thermal expansion alloys, can adjust the coefficient of thermal expansion from zero to 1 ppm. By developing alloys that meet our customers' diverse needs, such as corrosion resistance, machinability, and rigidity, we possess a wide range of low thermal expansion alloy materials and can recommend and provide materials that are suitable for your use.