LINEAR THERMAL EXPANSION COEFFICIENT OF STEEL


Linear thermal expansion coefficients of steels at room temperature are given in the following chart.

Room Temperature Linear Thermal Expansion Coefficient Values for Steels
Material Coefficient of Thermal Expansion
10-6 (°C)-1 10-6 (°F)-1
Plain Carbon and Low Alloy Steels
Steel Alloy A36 11.7 6.5
Steel Alloy 1020 11.7 6.5
Steel Alloy 1040 11.3 6.3
Steel Alloy 4140 12.3 6.8
Steel Alloy 4340 12.3 6.8
Stainless Steels
Stainless Alloy 304 17.2 9.6
Stainless Alloy 316 15.9 8.8
Stainless Alloy 405 10.8 6.0
Stainless Alloy 440A 10.2 5.7
Stainless Alloy 17-7PH 11.0 6.1


Reference: