ACI-ASTM CN7MS Steel vs. Grade VDSiCr Steel
Both ACI-ASTM CN7MS steel and grade VDSiCr steel are iron alloys. They have 52% of their average alloy composition in common. There are 23 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.
For each property being compared, the top bar is ACI-ASTM CN7MS steel and the bottom bar is grade VDSiCr steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 160 | |
| 590 |
| Elastic (Young's, Tensile) Modulus, GPa | 200 | |
| 190 |
| Poisson's Ratio | 0.28 | |
| 0.29 |
| Shear Modulus, GPa | 77 | |
| 80 |
| Tensile Strength: Ultimate (UTS), MPa | 540 | |
| 1950 |
Thermal Properties
| Latent Heat of Fusion, J/g | 340 | |
| 270 |
| Maximum Temperature: Mechanical, °C | 1040 | |
| 410 |
| Melting Completion (Liquidus), °C | 1400 | |
| 1440 |
| Melting Onset (Solidus), °C | 1350 | |
| 1400 |
| Specific Heat Capacity, J/kg-K | 480 | |
| 480 |
| Thermal Conductivity, W/m-K | 12 | |
| 46 |
| Thermal Expansion, µm/m-K | 16 | |
| 13 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 28 | |
| 2.2 |
| Density, g/cm3 | 7.9 | |
| 7.7 |
| Embodied Carbon, kg CO2/kg material | 5.1 | |
| 1.5 |
| Embodied Energy, MJ/kg | 71 | |
| 20 |
| Embodied Water, L/kg | 180 | |
| 48 |
Common Calculations
| Stiffness to Weight: Axial, points | 14 | |
| 13 |
| Stiffness to Weight: Bending, points | 25 | |
| 25 |
| Strength to Weight: Axial, points | 19 | |
| 70 |
| Strength to Weight: Bending, points | 19 | |
| 45 |
| Thermal Diffusivity, mm2/s | 3.2 | |
| 12 |
| Thermal Shock Resistance, points | 13 | |
| 58 |
Alloy Composition
| Carbon (C), % | 0 to 0.070 | |
| 0.5 to 0.6 |
| Chromium (Cr), % | 18 to 20 | |
| 0.5 to 0.8 |
| Copper (Cu), % | 1.5 to 2.0 | |
| 0 to 0.060 |
| Iron (Fe), % | 45.4 to 53.5 | |
| 96.6 to 97.8 |
| Manganese (Mn), % | 0 to 1.0 | |
| 0.5 to 0.9 |
| Molybdenum (Mo), % | 2.5 to 3.0 | |
| 0 |
| Nickel (Ni), % | 22 to 25 | |
| 0 |
| Phosphorus (P), % | 0 to 0.040 | |
| 0 to 0.025 |
| Silicon (Si), % | 2.5 to 3.5 | |
| 1.2 to 1.6 |
| Sulfur (S), % | 0 to 0.030 | |
| 0 to 0.020 |