Primary standard name
Equivalent standard names
Chemical composition
Element
Weight %
Comment
11.5 - 13.5 %
1 %
1 %
0.5 %
0.15 %
Element
Weight %
Comment
2 - 2.5 %
0.87 - 1.13 %
0.5 %
0.3 - 0.6 %
0.05 - 0.15 %
Element
Weight %
Comment
24 - 26 %
21 - 23 %
2 - 3 %
2 %
0.4 %
Element
Weight %
Comment
16 - 18 %
10 - 14 %
2 - 3 %
2 %
1 %
Mechanical
Elastic modulus, E
220 GPa at 20 °C
200 - 215 GPa at 23 °C
195 GPa at 23 °C
195 GPa at 23 °C
Elongation A50, A50
18 % at 20 °C
20 % at 23 °C
30 % at 23 °C
30 % at 23 °C
Shear modulus, G
-
-
77 GPa at 23 °C
77 GPa at 23 °C
Poisson's ratio, ν
0.3 [-] at 20 °C
0.29 [-] at 23 °C
0.3 [-] at 23 °C
0.3 [-] at 23 °C
Tensile strength, Rm
485 MPa at 20 °C
515 MPa at 23 °C
515 MPa at 23 °C
515 MPa at 23 °C
Reduction of area, Z
35 % at 20 °C
30 % at 23 °C
50 % at 23 °C
40 % at 23 °C
Yield Strength Rp0.2, short transverse, Rp0.2,shorttrans_
275 MPa at 20 °C
-
-
-
Hardness, Brinell, HB
143 - 207 [-] at 20 °C
156 - 207 [-] at 23 °C
-
-
Yield strength Rp0.2, Rp0.2
-
310 MPa at 23 °C
205 MPa at 23 °C
205 MPa at 23 °C
General
Density, ρ
7.6 - 7.7 g/cm³ at 20 °C
7.8 - 7.9 g/cm³ at 23 °C
7.9 - 8.2 g/cm³ at 23 °C
7.9 - 8.2 g/cm³ at 23 °C
Electrical
Electrical resistivity, ρel
6E-7 Ω·m at 20 °C
-
8.5E-7 Ω·m at 23 °C
8.5E-7 Ω·m at 23 °C
Thermal
Coefficient of thermal expansion, α
1E-5 - 1.5E-5 1/K at 20 °C
1.1E-5 - 1.4E-5 1/K at 23 °C
1.7E-5 - 1.9E-5 1/K at 23 °C
1.7E-5 - 1.9E-5 1/K at 23 °C
Specific heat capacity, cp
460 J/(kg·K) at 20 °C
448 - 502 J/(kg·K) at 23 °C
440 J/(kg·K) at 23 °C
440 J/(kg·K) at 23 °C
Thermal conductivity, λ
14 - 31 W/(m·K) at 20 °C
36 - 43 W/(m·K) at 23 °C
11 - 21 W/(m·K) at 23 °C
11 - 21 W/(m·K) at 23 °C
Melting point, Tm
1375 - 1450 °C
1382 - 1529 °C
1230 - 1480 °C
1230 - 1480 °C