3/4-hard AISI 302 vs. 3/4-hard ASTM F15
Both 3/4-hard AISI 302 and 3/4-hard ASTM F15 are iron alloys. Both are furnished in the 3/4-hard temper. They have 63% of their average alloy composition in common. There are 23 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.
For each property being compared, the top bar is 3/4-hard AISI 302 and the bottom bar is 3/4-hard ASTM F15.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 200 | |
| 190 |
| Poisson's Ratio | 0.28 | |
| 0.3 |
| Shear Modulus, GPa | 77 | |
| 73 |
| Tensile Strength: Ultimate (UTS), MPa | 1370 | |
| 750 |
Thermal Properties
| Latent Heat of Fusion, J/g | 280 | |
| 270 |
| Melting Completion (Liquidus), °C | 1420 | |
| 1410 |
| Melting Onset (Solidus), °C | 1400 | |
| 1450 |
| Specific Heat Capacity, J/kg-K | 480 | |
| 460 |
| Thermal Conductivity, W/m-K | 16 | |
| 17 |
| Thermal Expansion, µm/m-K | 17 | |
| 6.0 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 2.4 | |
| 3.7 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 2.8 | |
| 4.0 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 15 | |
| 49 |
| Density, g/cm3 | 7.8 | |
| 8.3 |
| Embodied Carbon, kg CO2/kg material | 3.0 | |
| 5.2 |
| Embodied Energy, MJ/kg | 42 | |
| 71 |
| Embodied Water, L/kg | 140 | |
| 190 |
Common Calculations
| Stiffness to Weight: Axial, points | 14 | |
| 13 |
| Stiffness to Weight: Bending, points | 25 | |
| 23 |
| Strength to Weight: Axial, points | 49 | |
| 25 |
| Strength to Weight: Bending, points | 35 | |
| 22 |
| Thermal Diffusivity, mm2/s | 4.4 | |
| 4.5 |
| Thermal Shock Resistance, points | 29 | |
| 47 |
Alloy Composition
| Aluminum (Al), % | 0 | |
| 0 to 0.1 |
| Carbon (C), % | 0 to 0.15 | |
| 0 to 0.040 |
| Chromium (Cr), % | 17 to 19 | |
| 0 to 0.2 |
| Cobalt (Co), % | 0 | |
| 16 to 18 |
| Copper (Cu), % | 0 | |
| 0 to 0.2 |
| Iron (Fe), % | 67.9 to 75 | |
| 50.3 to 56 |
| Magnesium (Mg), % | 0 | |
| 0 to 0.1 |
| Manganese (Mn), % | 0 to 2.0 | |
| 0 to 0.5 |
| Molybdenum (Mo), % | 0 | |
| 0 to 0.2 |
| Nickel (Ni), % | 8.0 to 10 | |
| 28 to 30 |
| Nitrogen (N), % | 0 to 0.1 | |
| 0 |
| Phosphorus (P), % | 0 to 0.045 | |
| 0 |
| Silicon (Si), % | 0 to 0.75 | |
| 0 to 0.2 |
| Sulfur (S), % | 0 to 0.030 | |
| 0 |
| Titanium (Ti), % | 0 | |
| 0 to 0.1 |
| Zirconium (Zr), % | 0 | |
| 0 to 0.1 |