ASTM A27 Grade U-60-30 vs. Unannealed K93050 Alloy
Both ASTM A27 grade U-60-30 and unannealed K93050 alloy are iron alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 63% of their average alloy composition in common. There are 19 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.
For each property being compared, the top bar is ASTM A27 grade U-60-30 and the bottom bar is unannealed K93050 alloy.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 190 |
| Poisson's Ratio | 0.29 | |
| 0.3 |
| Shear Modulus, GPa | 73 | |
| 72 |
| Tensile Strength: Ultimate (UTS), MPa | 460 | |
| 670 |
Thermal Properties
| Latent Heat of Fusion, J/g | 250 | |
| 270 |
| Melting Completion (Liquidus), °C | 1460 | |
| 1430 |
| Melting Onset (Solidus), °C | 1420 | |
| 1380 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 460 |
| Thermal Expansion, µm/m-K | 12 | |
| 12 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 1.8 | |
| 26 |
| Density, g/cm3 | 7.8 | |
| 8.2 |
| Embodied Carbon, kg CO2/kg material | 1.4 | |
| 4.7 |
| Embodied Energy, MJ/kg | 18 | |
| 65 |
| Embodied Water, L/kg | 45 | |
| 120 |
Common Calculations
| Stiffness to Weight: Axial, points | 13 | |
| 13 |
| Stiffness to Weight: Bending, points | 24 | |
| 23 |
| Strength to Weight: Axial, points | 16 | |
| 23 |
| Strength to Weight: Bending, points | 17 | |
| 21 |
| Thermal Shock Resistance, points | 15 | |
| 21 |
Alloy Composition
| Carbon (C), % | 0 to 0.25 | |
| 0 to 0.15 |
| Chromium (Cr), % | 0 | |
| 0 to 0.25 |
| Cobalt (Co), % | 0 | |
| 0 to 0.5 |
| Iron (Fe), % | 98.1 to 100 | |
| 61.4 to 63.9 |
| Manganese (Mn), % | 0 to 0.75 | |
| 0 to 1.0 |
| Nickel (Ni), % | 0 | |
| 36 |
| Phosphorus (P), % | 0 to 0.050 | |
| 0 to 0.020 |
| Selenium (Se), % | 0 | |
| 0.15 to 0.3 |
| Silicon (Si), % | 0 to 0.8 | |
| 0 to 0.35 |
| Sulfur (S), % | 0 to 0.060 | |
| 0 to 0.020 |