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Thermal Expansion for 9% Nickel Steel

Instantaneous Coefficient of Thermal Expansion

Temp. °C205075100125150175
*Coefficient A9.910.511.111.511.912.212.4
Temp. °C200225250275300325350
*Coefficient A12.612.712.812.912.913.113.2
Temp. °C375400425450475500525
*Coefficient A13.413.613.713.813.713.412.7
*Coefficient A: the instantaneous coefficient of thermal expansion for 9% nickel steel at elevated temperatures, 10-6 mm/mm/°C.

Mean Coefficient of Thermal Expansion

Temp. °C205075100125150175
*Coefficient B9.910.210.510.711.011.211.4
Temp. °C200225250275300325350
*Coefficient B11.511.711.811.912.012.012.1
Temp. °C375400425450475500525
*Coefficient B12.212.312.412.512.512.612.6
*Coefficient B: the mean coefficient of thermal expansion for 9% nickel steel in going from 20°C to indicated temperature, 10-6 mm/mm/°C.

Linear Thermal Expansion

Temp. °C205075100125150175
*Coefficient C00.30.60.91.21.51.8
Temp. °C200225250275300325350
*Coefficient C2.12.42.73.03.43.74.0
Temp. °C375400425450475500525
*Coefficient C4.34.75.05.45.76.06.4
*Coefficient C: the linear thermal expansion for 9% nickel steel in going from 20°C to indicated temperature, mm/m.

For low temperature data on thermal expansion of 9%-Ni alloy steel, please contact our technical department at piping@metalspiping.com.

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