Quarter-hard AISI 205 vs. Quarter-hard ASTM B780 Alloy
Quarter-hard AISI 205 belongs to the iron alloys classification, while quarter-hard ASTM B780 alloy belongs to the otherwise unclassified metals. There are 16 material properties with values for both materials. Properties with values for just one material (15, in this case) are not shown.
For each property being compared, the top bar is quarter-hard AISI 205 and the bottom bar is quarter-hard ASTM B780 alloy.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 200 | |
| 83 |
| Elongation at Break, % | 51 | |
| 4.6 |
| Poisson's Ratio | 0.28 | |
| 0.36 |
| Shear Modulus, GPa | 77 | |
| 30 |
| Shear Strength, MPa | 700 | |
| 230 |
| Tensile Strength: Ultimate (UTS), MPa | 980 | |
| 410 |
Thermal Properties
| Latent Heat of Fusion, J/g | 280 | |
| 140 |
| Melting Completion (Liquidus), °C | 1380 | |
| 860 |
| Specific Heat Capacity, J/kg-K | 480 | |
| 270 |
| Thermal Expansion, µm/m-K | 18 | |
| 18 |
Otherwise Unclassified Properties
| Density, g/cm3 | 7.6 | |
| 10 |
Common Calculations
| Stiffness to Weight: Axial, points | 14 | |
| 4.5 |
| Stiffness to Weight: Bending, points | 26 | |
| 14 |
| Strength to Weight: Axial, points | 36 | |
| 11 |
| Strength to Weight: Bending, points | 29 | |
| 12 |
| Thermal Shock Resistance, points | 20 | |
| 20 |
Alloy Composition
| Cadmium (Cd), % | 0 | |
| 0 to 0.050 |
| Carbon (C), % | 0.12 to 0.25 | |
| 0 |
| Chromium (Cr), % | 16.5 to 18.5 | |
| 0 |
| Copper (Cu), % | 0 | |
| 23.5 to 25.7 |
| Iron (Fe), % | 62.6 to 68.1 | |
| 0 to 0.050 |
| Lead (Pb), % | 0 | |
| 0 to 0.030 |
| Manganese (Mn), % | 14 to 15.5 | |
| 0 |
| Nickel (Ni), % | 1.0 to 1.7 | |
| 0.35 to 0.65 |
| Nitrogen (N), % | 0.32 to 0.4 | |
| 0 |
| Phosphorus (P), % | 0 to 0.060 | |
| 0 |
| Silicon (Si), % | 0 to 1.0 | |
| 0 |
| Silver (Ag), % | 0 | |
| 74 to 76 |
| Sulfur (S), % | 0 to 0.030 | |
| 0 |
| Zinc (Zn), % | 0 | |
| 0 to 0.060 |