EN 1.4401 Stainless Steel vs. ACI-ASTM CB7Cu-1 Steel
Both EN 1.4401 stainless steel and ACI-ASTM CB7Cu-1 steel are iron alloys. They have 89% of their average alloy composition in common. There are 31 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 EN 1.4401 stainless steel and the bottom bar is ACI-ASTM CB7Cu-1 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 190 to 270 | |
| 300 to 420 |
| Elastic (Young's, Tensile) Modulus, GPa | 200 | |
| 190 |
| Elongation at Break, % | 14 to 40 | |
| 5.7 to 11 |
| Fatigue Strength, MPa | 200 to 320 | |
| 420 to 590 |
| Impact Strength: V-Notched Charpy, J | 91 to 94 | |
| 34 |
| Poisson's Ratio | 0.28 | |
| 0.28 |
| Shear Modulus, GPa | 78 | |
| 76 |
| Tensile Strength: Ultimate (UTS), MPa | 600 to 900 | |
| 960 to 1350 |
| Tensile Strength: Yield (Proof), MPa | 230 to 570 | |
| 760 to 1180 |
Thermal Properties
| Latent Heat of Fusion, J/g | 290 | |
| 280 |
| Melting Completion (Liquidus), °C | 1440 | |
| 1430 |
| Melting Onset (Solidus), °C | 1400 | |
| 1500 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 480 |
| Thermal Conductivity, W/m-K | 15 | |
| 17 |
| Thermal Expansion, µm/m-K | 16 | |
| 11 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 2.3 | |
| 2.0 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 2.6 | |
| 2.3 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 19 | |
| 13 |
| Density, g/cm3 | 7.9 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 3.8 | |
| 2.6 |
| Embodied Energy, MJ/kg | 52 | |
| 38 |
| Embodied Water, L/kg | 150 | |
| 130 |
Common Calculations
| PREN (Pitting Resistance) | 26 | |
| 17 |
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 110 to 190 | |
| 71 to 120 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 130 to 800 | |
| 1500 to 3590 |
| Stiffness to Weight: Axial, points | 14 | |
| 14 |
| Stiffness to Weight: Bending, points | 25 | |
| 25 |
| Strength to Weight: Axial, points | 21 to 32 | |
| 34 to 48 |
| Strength to Weight: Bending, points | 20 to 26 | |
| 28 to 35 |
| Thermal Diffusivity, mm2/s | 4.0 | |
| 4.6 |
| Thermal Shock Resistance, points | 13 to 20 | |
| 32 to 45 |
Alloy Composition
| Carbon (C), % | 0 to 0.070 | |
| 0 to 0.070 |
| Chromium (Cr), % | 16.5 to 18.5 | |
| 15.5 to 17.7 |
| Copper (Cu), % | 0 | |
| 2.5 to 3.2 |
| Iron (Fe), % | 62.8 to 71.5 | |
| 72.3 to 78.4 |
| Manganese (Mn), % | 0 to 2.0 | |
| 0 to 0.7 |
| Molybdenum (Mo), % | 2.0 to 2.5 | |
| 0 |
| Nickel (Ni), % | 10 to 13 | |
| 3.6 to 4.6 |
| Niobium (Nb), % | 0 | |
| 0 to 0.35 |
| Nitrogen (N), % | 0 to 0.1 | |
| 0 to 0.050 |
| Phosphorus (P), % | 0 to 0.045 | |
| 0 to 0.035 |
| Silicon (Si), % | 0 to 1.0 | |
| 0 to 1.0 |
| Sulfur (S), % | 0 to 0.015 | |
| 0 to 0.030 |