ASTM A729 Class A Double-Normalized and Tempered
Equivalent material: ASTM A, UNS K04000
ASTM A729 Class A Double-Normalized and Tempered general
| Property |
Temperature |
Value |
Comment |
| Density |
23.0 °C |
Density of 7.8 - 7.9 g/cm³ |
Typical for Medium Carbon Steel |
ASTM A729 Class A Double-Normalized and Tempered thermal
| Property |
Temperature |
Value |
Comment |
| Coefficient of thermal expansion |
23.0 °C |
Coefficient of thermal expansion of 1.32E-5 1/K |
Typical for Medium Carbon Steel |
| Max service temperature |
- |
Max service temperature of 500 °C |
Typical for Carbon Steel |
| Melting point |
- |
Melting point of 1380 - 1514 °C |
Typical for Medium Carbon Steel |
| Specific heat capacity |
23.0 °C |
Specific heat capacity of 470 - 520 J/(kg·K) |
Typical for Medium Carbon Steel |
| Thermal conductivity |
23.0 °C |
Thermal conductivity of 21 - 52 W/(m·K) |
Typical for Medium Carbon Steel |
ASTM A729 Class A Double-Normalized and Tempered chemical
| Property |
Value |
| Aluminium |
Aluminium of 0.04 % |
| Carbon |
Carbon of 0.43 - 0.48 % |
| Chromium |
Chromium of 0.2 - 0.35 % |
| Manganese |
Manganese of 0.75 - 1 % |
| Phosphorus |
Phosphorus of 0.04 % |
| Silicon |
Silicon of 0.15 - 0.35 % |
| Sulfur |
Sulfur of 0.04 % |
| Vanadium |
Vanadium of 0.08 % |
ASTM A729 Class A Double-Normalized and Tempered electrical
| Property |
Temperature |
Value |
Comment |
| Electrical resistivity |
23.0 °C |
Electrical resistivity of 1.43E-7 - 1.74E-7 Ω·m |
Typical for Carbon Steel |
ASTM A729 Class A Double-Normalized and Tempered mechanical
| Property |
Temperature |
Value |
Comment |
| Elastic modulus |
23.0 °C |
Elastic modulus of 200 - 215 GPa |
Typical for Medium Carbon Steel |
| Elongation A50 |
23.0 °C |
Elongation A50 of 21 - 22 % |
- |
| Poisson's ratio |
23.0 °C |
Poisson's ratio of 0.29 [-] |
Typical for Medium Carbon Steel |
| Reduction of area |
23.0 °C |
Reduction of area of 35 - 37 % |
- |
| Shear modulus |
23.0 °C |
Shear modulus of 75 - 80 GPa |
Typical for Carbon Steel |
| Tensile strength |
23.0 °C |
Tensile strength of 595 - 605 MPa |
- |
| Yield strength Rp0.2 |
23.0 °C |
Yield strength Rp0.2 of 330 - 345 MPa |
- |
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