Coefficient of expansion and modulus of elasticity for steel and aluminium are:
1
12 × 10-6/°C, 23 × 10-6/°C, 200 Gpa, 80 Gpa
2
14 × 10-6/°C, 20 × 10-6/°C, 220Gpa, 90 Gpa
3
11 × 10-6/°C, 17 × 10-6/°C, 190 Gpa, 70 Gpa
4
13 × 10-6/°C, 19 × 10-6/°C, 210 Gpa, 80 Gpa