SAE-AISI 1070 Steel vs. ASTM A228 Music Wire
Both SAE-AISI 1070 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 1070 steel and the bottom bar is ASTM A228 music wire.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 190 to 230 | |
| 710 |
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 190 |
| Elongation at Break, % | 10 to 13 | |
| 12 |
| Fatigue Strength, MPa | 270 to 350 | |
| 1280 |
| Poisson's Ratio | 0.29 | |
| 0.29 |
| Shear Modulus, GPa | 72 | |
| 72 |
| Shear Strength, MPa | 380 to 460 | |
| 1470 |
| Tensile Strength: Ultimate (UTS), MPa | 640 to 760 | |
| 2450 |
| Tensile Strength: Yield (Proof), MPa | 420 to 560 | |
| 2050 |
Thermal Properties
| Latent Heat of Fusion, J/g | 250 | |
| 250 |
| Maximum Temperature: Mechanical, °C | 400 | |
| 400 |
| Melting Completion (Liquidus), °C | 1460 | |
| 1450 |
| Melting Onset (Solidus), °C | 1420 | |
| 1410 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 470 |
| Thermal Conductivity, W/m-K | 50 | |
| 49 |
| Thermal Expansion, µm/m-K | 12 | |
| 12 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 10 | |
| 7.1 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 12 | |
| 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 | 59 to 86 | |
| 280 |
| Stiffness to Weight: Axial, points | 13 | |
| 13 |
| Stiffness to Weight: Bending, points | 24 | |
| 24 |
| Strength to Weight: Axial, points | 23 to 27 | |
| 87 |
| Strength to Weight: Bending, points | 21 to 24 | |
| 52 |
| Thermal Diffusivity, mm2/s | 14 | |
| 13 |
| Thermal Shock Resistance, points | 21 to 25 | |
| 79 |
Alloy Composition
| Carbon (C), % | 0.65 to 0.75 | |
| 0.7 to 1.0 |
| Iron (Fe), % | 98.3 to 98.8 | |
| 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 |