SAE-AISI 1084 Steel vs. ASTM A228 Music Wire
Both SAE-AISI 1084 steel and ASTM A228 music wire are iron alloys. Their average alloy composition is basically identical. There are 30 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.
For each property being compared, the top bar is SAE-AISI 1084 steel and the bottom bar is ASTM A228 music wire.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 220 to 270 | |
| 710 |
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 190 |
| Elongation at Break, % | 11 | |
| 12 |
| Fatigue Strength, MPa | 320 to 370 | |
| 1280 |
| Poisson's Ratio | 0.29 | |
| 0.29 |
| Shear Modulus, GPa | 72 | |
| 72 |
| Shear Strength, MPa | 470 to 550 | |
| 1470 |
| Tensile Strength: Ultimate (UTS), MPa | 780 to 930 | |
| 2450 |
| Tensile Strength: Yield (Proof), MPa | 510 to 600 | |
| 2050 |
Thermal Properties
| Latent Heat of Fusion, J/g | 240 | |
| 250 |
| Maximum Temperature: Mechanical, °C | 400 | |
| 400 |
| Melting Completion (Liquidus), °C | 1450 | |
| 1450 |
| Melting Onset (Solidus), °C | 1410 | |
| 1410 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 470 |
| Thermal Conductivity, W/m-K | 51 | |
| 49 |
| Thermal Expansion, µm/m-K | 12 | |
| 12 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 7.1 | |
| 7.1 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 8.2 | |
| 8.2 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 1.8 | |
| 1.8 |
| Density, g/cm3 | 7.8 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 1.4 | |
| 1.4 |
| Embodied Energy, MJ/kg | 19 | |
| 19 |
| Embodied Water, L/kg | 46 | |
| 45 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 81 to 89 | |
| 280 |
| Stiffness to Weight: Axial, points | 13 | |
| 13 |
| Stiffness to Weight: Bending, points | 24 | |
| 24 |
| Strength to Weight: Axial, points | 28 to 33 | |
| 87 |
| Strength to Weight: Bending, points | 24 to 27 | |
| 52 |
| Thermal Diffusivity, mm2/s | 14 | |
| 13 |
| Thermal Shock Resistance, points | 25 to 30 | |
| 79 |
Alloy Composition
| Carbon (C), % | 0.8 to 0.93 | |
| 0.7 to 1.0 |
| Iron (Fe), % | 98.1 to 98.6 | |
| 98 to 99 |
| Manganese (Mn), % | 0.6 to 0.9 | |
| 0.2 to 0.6 |
| Phosphorus (P), % | 0 to 0.040 | |
| 0 to 0.025 |
| Silicon (Si), % | 0 | |
| 0.1 to 0.3 |
| Sulfur (S), % | 0 to 0.050 | |
| 0 to 0.030 |