ACI-ASTM CB7Cu-1 Steel vs. EN 1.4371 Stainless Steel
Both ACI-ASTM CB7Cu-1 steel and EN 1.4371 stainless steel are iron alloys. They have a moderately high 93% 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 ACI-ASTM CB7Cu-1 steel and the bottom bar is EN 1.4371 stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 300 to 420 | |
| 220 to 230 |
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 200 |
| Elongation at Break, % | 5.7 to 11 | |
| 45 to 51 |
| Fatigue Strength, MPa | 420 to 590 | |
| 290 to 340 |
| Poisson's Ratio | 0.28 | |
| 0.28 |
| Shear Modulus, GPa | 76 | |
| 77 |
| Tensile Strength: Ultimate (UTS), MPa | 960 to 1350 | |
| 740 to 750 |
| Tensile Strength: Yield (Proof), MPa | 760 to 1180 | |
| 320 to 340 |
Thermal Properties
| Latent Heat of Fusion, J/g | 280 | |
| 280 |
| Melting Completion (Liquidus), °C | 1430 | |
| 1410 |
| Melting Onset (Solidus), °C | 1500 | |
| 1370 |
| Specific Heat Capacity, J/kg-K | 480 | |
| 480 |
| Thermal Conductivity, W/m-K | 17 | |
| 15 |
| Thermal Expansion, µm/m-K | 11 | |
| 17 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 2.0 | |
| 2.5 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 2.3 | |
| 2.9 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 13 | |
| 12 |
| Density, g/cm3 | 7.8 | |
| 7.7 |
| Embodied Carbon, kg CO2/kg material | 2.6 | |
| 2.6 |
| Embodied Energy, MJ/kg | 38 | |
| 38 |
| Embodied Water, L/kg | 130 | |
| 140 |
Common Calculations
| PREN (Pitting Resistance) | 17 | |
| 20 |
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 71 to 120 | |
| 270 to 310 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 1500 to 3590 | |
| 250 to 300 |
| Stiffness to Weight: Axial, points | 14 | |
| 14 |
| Stiffness to Weight: Bending, points | 25 | |
| 25 |
| Strength to Weight: Axial, points | 34 to 48 | |
| 27 |
| Strength to Weight: Bending, points | 28 to 35 | |
| 24 |
| Thermal Diffusivity, mm2/s | 4.6 | |
| 4.0 |
| Thermal Shock Resistance, points | 32 to 45 | |
| 16 |
Alloy Composition
| Carbon (C), % | 0 to 0.070 | |
| 0 to 0.030 |
| Chromium (Cr), % | 15.5 to 17.7 | |
| 16 to 17.5 |
| Copper (Cu), % | 2.5 to 3.2 | |
| 0 to 1.0 |
| Iron (Fe), % | 72.3 to 78.4 | |
| 66.7 to 74.4 |
| Manganese (Mn), % | 0 to 0.7 | |
| 6.0 to 8.0 |
| Nickel (Ni), % | 3.6 to 4.6 | |
| 3.5 to 5.5 |
| Niobium (Nb), % | 0 to 0.35 | |
| 0 |
| Nitrogen (N), % | 0 to 0.050 | |
| 0.15 to 0.25 |
| Phosphorus (P), % | 0 to 0.035 | |
| 0 to 0.045 |
| Silicon (Si), % | 0 to 1.0 | |
| 0 to 1.0 |
| Sulfur (S), % | 0 to 0.030 | |
| 0 to 0.015 |