SAE J1249 Grade 1139
Equivalent material: DIN 1.0727, DIN 45S20, DIN 46S20, AFNOR 46S20, BS 46S20, AISI 1139, AISI 1146, SAE 1146, JIS 46S20, EN 46S20, EN 1.0727, ISO 46S20, GB Y45, GB/T U70452, GB/T Y45, UNS G11390, UNS G11460
SAE J1249 Grade 1139 general
| Property |
Temperature |
Value |
Comment |
| Density |
23.0 °C |
Density of 7.8 - 7.9 g/cm³ |
Typical for Medium Carbon Steel |
SAE J1249 Grade 1139 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 |
SAE J1249 Grade 1139 chemical
| Property |
Value |
Comment |
| Carbon |
Carbon of 0.35 - 0.43 % |
- |
| Iron |
Iron of 97.68 - 98.17 % |
balance |
| Manganese |
Manganese of 1.35 - 1.65 % |
- |
| Phosphorus |
Phosphorus of 0.04 % |
- |
| Sulfur |
Sulfur of 0.13 - 0.2 % |
- |
SAE J1249 Grade 1139 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 |
SAE J1249 Grade 1139 mechanical
| Property |
Temperature |
Value |
Comment |
| Elastic modulus |
23.0 °C |
Elastic modulus of 200 - 215 GPa |
Typical for Medium Carbon Steel |
| Poisson's ratio |
23.0 °C |
Poisson's ratio of 0.29 [-] |
Typical for Medium Carbon Steel |
| Shear modulus |
23.0 °C |
Shear modulus of 75 - 80 GPa |
Typical for Carbon Steel |
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