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Carpenter Low Expansion "45" Alloy

Nominal Analysis
0.05 C, 0.4 Mn, 0.25 Si, 45.00 Ni, Bal. Fe

This alloy has a relatively constant rate of thermal expansion to about 800°F (538°C). It has been used in thermostats, and its thermal expansion approximates that of some alumina ceramics.

 

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