AISI 305 Stainless Steel vs. ACI-ASTM CB7Cu-2 Steel
Both AISI 305 stainless steel and ACI-ASTM CB7Cu-2 steel are iron alloys. They have 89% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.
For each property being compared, the top bar is AISI 305 stainless steel and the bottom bar is ACI-ASTM CB7Cu-2 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 170 to 220 | |
| 300 to 420 |
| Elastic (Young's, Tensile) Modulus, GPa | 200 | |
| 190 |
| Elongation at Break, % | 34 to 45 | |
| 5.7 to 11 |
| Fatigue Strength, MPa | 210 to 280 | |
| 420 to 590 |
| Poisson's Ratio | 0.28 | |
| 0.28 |
| Shear Modulus, GPa | 77 | |
| 75 |
| Tensile Strength: Ultimate (UTS), MPa | 580 to 710 | |
| 960 to 1350 |
| Tensile Strength: Yield (Proof), MPa | 230 to 350 | |
| 760 to 1180 |
Thermal Properties
| Latent Heat of Fusion, J/g | 290 | |
| 280 |
| Melting Completion (Liquidus), °C | 1450 | |
| 1430 |
| Melting Onset (Solidus), °C | 1400 | |
| 1380 |
| Specific Heat Capacity, J/kg-K | 480 | |
| 480 |
| Thermal Conductivity, W/m-K | 16 | |
| 17 |
| Thermal Expansion, µm/m-K | 17 | |
| 11 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 2.4 | |
| 2.1 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 2.7 | |
| 2.4 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 16 | |
| 13 |
| Density, g/cm3 | 7.8 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 3.2 | |
| 2.6 |
| Embodied Energy, MJ/kg | 45 | |
| 38 |
| Embodied Water, L/kg | 150 | |
| 130 |
Common Calculations
| PREN (Pitting Resistance) | 18 | |
| 15 |
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 200 to 210 | |
| 71 to 120 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 130 to 320 | |
| 1510 to 3600 |
| Stiffness to Weight: Axial, points | 14 | |
| 14 |
| Stiffness to Weight: Bending, points | 25 | |
| 25 |
| Strength to Weight: Axial, points | 20 to 25 | |
| 34 to 48 |
| Strength to Weight: Bending, points | 20 to 23 | |
| 28 to 35 |
| Thermal Diffusivity, mm2/s | 4.2 | |
| 4.6 |
| Thermal Shock Resistance, points | 13 to 15 | |
| 32 to 45 |
Alloy Composition
| Carbon (C), % | 0 to 0.12 | |
| 0 to 0.070 |
| Chromium (Cr), % | 17 to 19 | |
| 14 to 15.5 |
| Copper (Cu), % | 0 | |
| 2.5 to 3.2 |
| Iron (Fe), % | 65.1 to 72.5 | |
| 73.6 to 79 |
| Manganese (Mn), % | 0 to 2.0 | |
| 0 to 0.7 |
| Nickel (Ni), % | 10.5 to 13 | |
| 4.5 to 5.5 |
| Niobium (Nb), % | 0 | |
| 0 to 0.35 |
| Nitrogen (N), % | 0 | |
| 0 to 0.050 |
| Phosphorus (P), % | 0 to 0.045 | |
| 0 to 0.035 |
| Silicon (Si), % | 0 to 0.75 | |
| 0 to 1.0 |
| Sulfur (S), % | 0 to 0.030 | |
| 0 to 0.030 |