Materials / Steel
Steel AISI 1045
Steel AISI 1045 (medium carbon, cold drawn) strength, stiffness, density and thermal properties, with their source.
A bracket in Steel AISI 1045, brushed finish.
| Process | Wrought |
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| Mechanical |
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| Yield strength | 531MPasourceproducer-stated, cold drawn |
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| Ultimate tensile strength | 627MPasourceproducer-stated, cold drawn |
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| Elongation at break | 12%sourcein 2 in (50.8 mm) |
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| Young's modulus (stiffness) | 210GPasourcetypical |
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| Density | 7,800kg/m³sourcetypical |
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| Strength to weight | 68.1kN·m/kg |
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| Stiffness to weight | 26.9MN·m/kg |
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| Poisson's ratio | 0.3sourcetypical |
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| Shear modulus | 80.8GPa |
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| Bulk modulus | 175GPa |
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| Speed of sound | 5,189m/s |
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| Thermal |
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| Thermal conductivity | 40–45W/m·Ksourcetypical range, ambient |
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| Thermal expansion | 12µm/m·Ksourcetypical, mean 20-300 °C |
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| 100 mm part over a 50 °C swing | 60µm growth |
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| Specific heat | 460–480J/kg·Ksourcetypical range, 50/100 °C |
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| Heats up and cools (diffusivity) | 11.6mm²/s |
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| Thermal shock resistance | 6,269W/m |
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| Values for | AISI 1045 cold drawn bar (Niagara LaSalle) for mechanical; Ovako C45 (lists 'SAE 1045' as a similar designation) for physical constants |
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Among 59 materials
Stiffness against densityStrength against density
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