SAE-AISI 4140 Steel vs. C36200 Brass
SAE-AISI 4140 steel belongs to the iron alloys classification, while C36200 brass belongs to the copper 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 SAE-AISI 4140 steel and the bottom bar is C36200 brass.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 100 |
| Elongation at Break, % | 11 to 26 | |
| 20 to 53 |
| Poisson's Ratio | 0.29 | |
| 0.31 |
| Shear Modulus, GPa | 73 | |
| 39 |
| Shear Strength, MPa | 410 to 660 | |
| 210 to 240 |
| Tensile Strength: Ultimate (UTS), MPa | 690 to 1080 | |
| 340 to 420 |
| Tensile Strength: Yield (Proof), MPa | 590 to 990 | |
| 130 to 360 |
Thermal Properties
| Latent Heat of Fusion, J/g | 250 | |
| 170 |
| Maximum Temperature: Mechanical, °C | 420 | |
| 120 |
| Melting Completion (Liquidus), °C | 1460 | |
| 900 |
| Melting Onset (Solidus), °C | 1420 | |
| 890 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 380 |
| Thermal Conductivity, W/m-K | 43 | |
| 120 |
| Thermal Expansion, µm/m-K | 13 | |
| 21 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 7.3 | |
| 26 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 8.4 | |
| 28 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 2.4 | |
| 23 |
| Density, g/cm3 | 7.8 | |
| 8.2 |
| Embodied Carbon, kg CO2/kg material | 1.5 | |
| 2.6 |
| Embodied Energy, MJ/kg | 20 | |
| 45 |
| Embodied Water, L/kg | 51 | |
| 320 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 74 to 180 | |
| 74 to 140 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 920 to 2590 | |
| 89 to 630 |
| Stiffness to Weight: Axial, points | 13 | |
| 6.9 |
| Stiffness to Weight: Bending, points | 24 | |
| 19 |
| Strength to Weight: Axial, points | 25 to 38 | |
| 11 to 14 |
| Strength to Weight: Bending, points | 22 to 30 | |
| 13 to 15 |
| Thermal Diffusivity, mm2/s | 12 | |
| 37 |
| Thermal Shock Resistance, points | 20 to 32 | |
| 11 to 14 |
Alloy Composition
| Carbon (C), % | 0.38 to 0.43 | |
| 0 |
| Chromium (Cr), % | 0.8 to 1.1 | |
| 0 |
| Copper (Cu), % | 0 | |
| 60 to 63 |
| Iron (Fe), % | 96.8 to 97.8 | |
| 0 to 0.15 |
| Lead (Pb), % | 0 | |
| 3.5 to 4.5 |
| Manganese (Mn), % | 0.75 to 1.0 | |
| 0 |
| Molybdenum (Mo), % | 0.15 to 0.25 | |
| 0 |
| Phosphorus (P), % | 0 to 0.035 | |
| 0 |
| Silicon (Si), % | 0.15 to 0.35 | |
| 0 |
| Sulfur (S), % | 0 to 0.040 | |
| 0 |
| Zinc (Zn), % | 0 | |
| 32.4 to 36.5 |