ACI-ASTM CB7Cu-1 Steel vs. S20910 Stainless Steel
Both ACI-ASTM CB7Cu-1 steel and S20910 stainless steel are iron alloys. They have 79% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.
For each property being compared, the top bar is ACI-ASTM CB7Cu-1 steel and the bottom bar is S20910 stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 300 to 420 | |
| 230 to 290 |
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 200 |
| Elongation at Break, % | 5.7 to 11 | |
| 14 to 39 |
| Fatigue Strength, MPa | 420 to 590 | |
| 310 to 460 |
| Poisson's Ratio | 0.28 | |
| 0.28 |
| Shear Modulus, GPa | 76 | |
| 79 |
| Tensile Strength: Ultimate (UTS), MPa | 960 to 1350 | |
| 780 to 940 |
| Tensile Strength: Yield (Proof), MPa | 760 to 1180 | |
| 430 to 810 |
Thermal Properties
| Latent Heat of Fusion, J/g | 280 | |
| 300 |
| Melting Completion (Liquidus), °C | 1430 | |
| 1420 |
| Melting Onset (Solidus), °C | 1500 | |
| 1380 |
| Specific Heat Capacity, J/kg-K | 480 | |
| 480 |
| Thermal Conductivity, W/m-K | 17 | |
| 13 |
| Thermal Expansion, µm/m-K | 11 | |
| 16 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 13 | |
| 22 |
| Density, g/cm3 | 7.8 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 2.6 | |
| 4.8 |
| Embodied Energy, MJ/kg | 38 | |
| 68 |
| Embodied Water, L/kg | 130 | |
| 180 |
Common Calculations
| PREN (Pitting Resistance) | 17 | |
| 34 |
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 71 to 120 | |
| 120 to 260 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 1500 to 3590 | |
| 460 to 1640 |
| Stiffness to Weight: Axial, points | 14 | |
| 14 |
| Stiffness to Weight: Bending, points | 25 | |
| 25 |
| Strength to Weight: Axial, points | 34 to 48 | |
| 28 to 33 |
| Strength to Weight: Bending, points | 28 to 35 | |
| 24 to 27 |
| Thermal Diffusivity, mm2/s | 4.6 | |
| 3.6 |
| Thermal Shock Resistance, points | 32 to 45 | |
| 17 to 21 |
Alloy Composition
| Carbon (C), % | 0 to 0.070 | |
| 0 to 0.060 |
| Chromium (Cr), % | 15.5 to 17.7 | |
| 20.5 to 23.5 |
| Copper (Cu), % | 2.5 to 3.2 | |
| 0 |
| Iron (Fe), % | 72.3 to 78.4 | |
| 52.1 to 62.1 |
| Manganese (Mn), % | 0 to 0.7 | |
| 4.0 to 6.0 |
| Molybdenum (Mo), % | 0 | |
| 1.5 to 3.0 |
| Nickel (Ni), % | 3.6 to 4.6 | |
| 11.5 to 13.5 |
| Niobium (Nb), % | 0 to 0.35 | |
| 0.1 to 0.3 |
| Nitrogen (N), % | 0 to 0.050 | |
| 0.2 to 0.4 |
| Phosphorus (P), % | 0 to 0.035 | |
| 0 to 0.040 |
| Silicon (Si), % | 0 to 1.0 | |
| 0 to 0.75 |
| Sulfur (S), % | 0 to 0.030 | |
| 0 to 0.030 |
| Vanadium (V), % | 0 | |
| 0.1 to 0.3 |