204.0 Aluminum vs. K94200 Alloy
204.0 aluminum belongs to the aluminum alloys classification, while K94200 alloy belongs to the iron alloys. There are 21 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.
For each property being compared, the top bar is 204.0 aluminum and the bottom bar is K94200 alloy.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 71 | |
| 140 |
| Elongation at Break, % | 5.7 to 7.8 | |
| 5.0 to 32 |
| Poisson's Ratio | 0.33 | |
| 0.34 |
| Shear Modulus, GPa | 27 | |
| 54 |
| Tensile Strength: Ultimate (UTS), MPa | 230 to 340 | |
| 500 to 710 |
| Tensile Strength: Yield (Proof), MPa | 180 to 220 | |
| 270 to 650 |
Thermal Properties
| Melting Onset (Solidus), °C | 580 | |
| 1440 |
| Specific Heat Capacity, J/kg-K | 880 | |
| 500 |
| Thermal Conductivity, W/m-K | 120 | |
| 15 |
| Thermal Expansion, µm/m-K | 19 | |
| 5.0 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 29 to 34 | |
| 2.7 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 87 to 100 | |
| 3.0 |
Otherwise Unclassified Properties
| Density, g/cm3 | 3.0 | |
| 8.2 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 12 to 23 | |
| 35 to 130 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 220 to 350 | |
| 250 to 1460 |
| Stiffness to Weight: Axial, points | 13 | |
| 9.8 |
| Stiffness to Weight: Bending, points | 46 | |
| 21 |
| Strength to Weight: Axial, points | 21 to 31 | |
| 17 to 24 |
| Strength to Weight: Bending, points | 28 to 36 | |
| 17 to 22 |
| Thermal Diffusivity, mm2/s | 46 | |
| 3.7 |
| Thermal Shock Resistance, points | 12 to 18 | |
| 49 to 70 |