Thermoplastic Forming Tools

Cronite developed special alloy with low coefficient of expansion at 400˚C.

HR21D
CAST ALLOY COMPOSITIONC [%]1.1
Mn [%]-
Si [%]0.9
Pmax [%]0.01
Smax [%]0.01
Cr [%]-
Ni [%]25
Nb [%]-
OthersCo14
Maximal operating temperature[°C]~450
Densityg/cm³7.9
Specific heat at 20°CJ/gK
Coefficient of linear
thermal expansion
20-600°C10⁻⁵/°C6
20-800°C10⁻⁵/°C6
20-1000°C10⁻⁵/°C6.4