S20910 Stainless Steel vs. ACI-ASTM CB7Cu-2 Steel
Both S20910 stainless steel and ACI-ASTM CB7Cu-2 steel are iron alloys. They have 78% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.
For each property being compared, the top bar is S20910 stainless steel and the bottom bar is ACI-ASTM CB7Cu-2 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 230 to 290 | |
| 300 to 420 |
| Elastic (Young's, Tensile) Modulus, GPa | 200 | |
| 190 |
| Elongation at Break, % | 14 to 39 | |
| 5.7 to 11 |
| Fatigue Strength, MPa | 310 to 460 | |
| 420 to 590 |
| Poisson's Ratio | 0.28 | |
| 0.28 |
| Shear Modulus, GPa | 79 | |
| 75 |
| Tensile Strength: Ultimate (UTS), MPa | 780 to 940 | |
| 960 to 1350 |
| Tensile Strength: Yield (Proof), MPa | 430 to 810 | |
| 760 to 1180 |
Thermal Properties
| Latent Heat of Fusion, J/g | 300 | |
| 280 |
| Melting Completion (Liquidus), °C | 1420 | |
| 1430 |
| Melting Onset (Solidus), °C | 1380 | |
| 1380 |
| Specific Heat Capacity, J/kg-K | 480 | |
| 480 |
| Thermal Conductivity, W/m-K | 13 | |
| 17 |
| Thermal Expansion, µm/m-K | 16 | |
| 11 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 22 | |
| 13 |
| Density, g/cm3 | 7.8 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 4.8 | |
| 2.6 |
| Embodied Energy, MJ/kg | 68 | |
| 38 |
| Embodied Water, L/kg | 180 | |
| 130 |
Common Calculations
| PREN (Pitting Resistance) | 34 | |
| 15 |
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 120 to 260 | |
| 71 to 120 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 460 to 1640 | |
| 1510 to 3600 |
| Stiffness to Weight: Axial, points | 14 | |
| 14 |
| Stiffness to Weight: Bending, points | 25 | |
| 25 |
| Strength to Weight: Axial, points | 28 to 33 | |
| 34 to 48 |
| Strength to Weight: Bending, points | 24 to 27 | |
| 28 to 35 |
| Thermal Diffusivity, mm2/s | 3.6 | |
| 4.6 |
| Thermal Shock Resistance, points | 17 to 21 | |
| 32 to 45 |
Alloy Composition
| Carbon (C), % | 0 to 0.060 | |
| 0 to 0.070 |
| Chromium (Cr), % | 20.5 to 23.5 | |
| 14 to 15.5 |
| Copper (Cu), % | 0 | |
| 2.5 to 3.2 |
| Iron (Fe), % | 52.1 to 62.1 | |
| 73.6 to 79 |
| Manganese (Mn), % | 4.0 to 6.0 | |
| 0 to 0.7 |
| Molybdenum (Mo), % | 1.5 to 3.0 | |
| 0 |
| Nickel (Ni), % | 11.5 to 13.5 | |
| 4.5 to 5.5 |
| Niobium (Nb), % | 0.1 to 0.3 | |
| 0 to 0.35 |
| Nitrogen (N), % | 0.2 to 0.4 | |
| 0 to 0.050 |
| Phosphorus (P), % | 0 to 0.040 | |
| 0 to 0.035 |
| Silicon (Si), % | 0 to 0.75 | |
| 0 to 1.0 |
| Sulfur (S), % | 0 to 0.030 | |
| 0 to 0.030 |
| Vanadium (V), % | 0.1 to 0.3 | |
| 0 |