C68700 Brass vs. S31730 Stainless Steel
C68700 brass belongs to the copper alloys classification, while S31730 stainless steel belongs to the iron alloys. There are 22 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 C68700 brass and the bottom bar is S31730 stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 110 | |
| 200 |
| Poisson's Ratio | 0.32 | |
| 0.28 |
| Shear Modulus, GPa | 41 | |
| 77 |
| Tensile Strength: Ultimate (UTS), MPa | 390 | |
| 540 |
| Tensile Strength: Yield (Proof), MPa | 140 | |
| 200 |
Thermal Properties
| Latent Heat of Fusion, J/g | 190 | |
| 290 |
| Maximum Temperature: Mechanical, °C | 160 | |
| 990 |
| Melting Completion (Liquidus), °C | 970 | |
| 1430 |
| Melting Onset (Solidus), °C | 930 | |
| 1390 |
| Specific Heat Capacity, J/kg-K | 400 | |
| 470 |
| Thermal Expansion, µm/m-K | 19 | |
| 16 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 26 | |
| 24 |
| Density, g/cm3 | 8.3 | |
| 8.0 |
| Embodied Carbon, kg CO2/kg material | 2.8 | |
| 4.6 |
| Embodied Energy, MJ/kg | 46 | |
| 63 |
| Embodied Water, L/kg | 340 | |
| 180 |
Common Calculations
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 90 | |
| 99 |
| Stiffness to Weight: Axial, points | 7.3 | |
| 14 |
| Stiffness to Weight: Bending, points | 19 | |
| 24 |
| Strength to Weight: Axial, points | 13 | |
| 19 |
| Strength to Weight: Bending, points | 14 | |
| 18 |
| Thermal Shock Resistance, points | 13 | |
| 12 |
Alloy Composition
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| Aluminum (Al), % | 1.8 to 2.5 | |
| 0 |
| Arsenic (As), % | 0.020 to 0.1 | |
| 0 |
| Carbon (C), % | 0 | |
| 0 to 0.030 |
| Chromium (Cr), % | 0 | |
| 17 to 19 |
| Copper (Cu), % | 76 to 79 | |
| 4.0 to 5.0 |
| Iron (Fe), % | 0 to 0.060 | |
| 52.4 to 61 |
| Lead (Pb), % | 0 to 0.070 | |
| 0 |
| Manganese (Mn), % | 0 | |
| 0 to 2.0 |
| Molybdenum (Mo), % | 0 | |
| 3.0 to 4.0 |
| Nickel (Ni), % | 0 | |
| 15 to 16.5 |
| Nitrogen (N), % | 0 | |
| 0 to 0.045 |
| Phosphorus (P), % | 0 | |
| 0 to 0.040 |
| Silicon (Si), % | 0 | |
| 0 to 1.0 |
| Sulfur (S), % | 0 | |
| 0 to 0.010 |
| Zinc (Zn), % | 17.8 to 22.2 | |
| 0 |
| Residuals, % | 0 to 0.5 | |
| 0 |