C69300 Brass vs. ASTM A372 Grade J Steel
C69300 brass belongs to the copper alloys classification, while ASTM A372 grade J steel belongs to the iron alloys. There are 29 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.
For each property being compared, the top bar is C69300 brass and the bottom bar is ASTM A372 grade J steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 110 | |
| 190 |
| Elongation at Break, % | 8.5 to 15 | |
| 17 to 22 |
| Poisson's Ratio | 0.32 | |
| 0.29 |
| Shear Modulus, GPa | 41 | |
| 73 |
| Shear Strength, MPa | 330 to 370 | |
| 410 to 630 |
| Tensile Strength: Ultimate (UTS), MPa | 550 to 630 | |
| 650 to 1020 |
| Tensile Strength: Yield (Proof), MPa | 300 to 390 | |
| 430 to 850 |
Thermal Properties
| Latent Heat of Fusion, J/g | 240 | |
| 250 |
| Maximum Temperature: Mechanical, °C | 160 | |
| 420 |
| Melting Completion (Liquidus), °C | 880 | |
| 1460 |
| Melting Onset (Solidus), °C | 860 | |
| 1420 |
| Specific Heat Capacity, J/kg-K | 400 | |
| 470 |
| Thermal Conductivity, W/m-K | 38 | |
| 44 |
| Thermal Expansion, µm/m-K | 19 | |
| 13 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 8.0 | |
| 7.3 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 8.8 | |
| 8.4 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 26 | |
| 2.4 |
| Density, g/cm3 | 8.2 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 2.7 | |
| 1.5 |
| Embodied Energy, MJ/kg | 45 | |
| 20 |
| Embodied Water, L/kg | 310 | |
| 51 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 47 to 70 | |
| 130 to 170 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 400 to 700 | |
| 500 to 1930 |
| Stiffness to Weight: Axial, points | 7.4 | |
| 13 |
| Stiffness to Weight: Bending, points | 19 | |
| 24 |
| Strength to Weight: Axial, points | 19 to 21 | |
| 23 to 36 |
| Strength to Weight: Bending, points | 18 to 20 | |
| 21 to 29 |
| Thermal Diffusivity, mm2/s | 12 | |
| 12 |
| Thermal Shock Resistance, points | 19 to 22 | |
| 19 to 30 |
Alloy Composition
| Carbon (C), % | 0 | |
| 0.35 to 0.5 |
| Chromium (Cr), % | 0 | |
| 0.8 to 1.2 |
| Copper (Cu), % | 73 to 77 | |
| 0 |
| Iron (Fe), % | 0 to 0.1 | |
| 96.7 to 97.8 |
| Lead (Pb), % | 0 to 0.090 | |
| 0 |
| Manganese (Mn), % | 0 to 0.1 | |
| 0.75 to 1.1 |
| Molybdenum (Mo), % | 0 | |
| 0.15 to 0.25 |
| Nickel (Ni), % | 0 to 0.1 | |
| 0 |
| Phosphorus (P), % | 0.040 to 0.15 | |
| 0 to 0.015 |
| Silicon (Si), % | 2.7 to 3.4 | |
| 0.15 to 0.35 |
| Sulfur (S), % | 0 | |
| 0 to 0.010 |
| Tin (Sn), % | 0 to 0.2 | |
| 0 |
| Zinc (Zn), % | 18.4 to 24.3 | |
| 0 |
| Residuals, % | 0 to 0.5 | |
| 0 |