EN 1.7034 Steel vs. S40920 Stainless Steel
Both EN 1.7034 steel and S40920 stainless steel are iron alloys. They have 89% of their average alloy composition in common. There are 25 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.
For each property being compared, the top bar is EN 1.7034 steel and the bottom bar is S40920 stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 150 to 250 | |
| 150 |
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 190 |
| Poisson's Ratio | 0.29 | |
| 0.28 |
| Shear Modulus, GPa | 73 | |
| 75 |
| Tensile Strength: Ultimate (UTS), MPa | 510 to 1780 | |
| 430 |
Thermal Properties
| Latent Heat of Fusion, J/g | 250 | |
| 270 |
| Maximum Temperature: Mechanical, °C | 420 | |
| 710 |
| Melting Completion (Liquidus), °C | 1460 | |
| 1450 |
| Melting Onset (Solidus), °C | 1420 | |
| 1400 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 480 |
| Thermal Conductivity, W/m-K | 45 | |
| 26 |
| Thermal Expansion, µm/m-K | 13 | |
| 10 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 7.2 | |
| 2.9 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 8.3 | |
| 3.3 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 2.2 | |
| 6.5 |
| Density, g/cm3 | 7.8 | |
| 7.7 |
| Embodied Carbon, kg CO2/kg material | 1.4 | |
| 2.0 |
| Embodied Energy, MJ/kg | 19 | |
| 28 |
| Embodied Water, L/kg | 50 | |
| 94 |
Common Calculations
| Stiffness to Weight: Axial, points | 13 | |
| 14 |
| Stiffness to Weight: Bending, points | 24 | |
| 25 |
| Strength to Weight: Axial, points | 18 to 63 | |
| 15 |
| Strength to Weight: Bending, points | 18 to 42 | |
| 16 |
| Thermal Diffusivity, mm2/s | 12 | |
| 6.9 |
| Thermal Shock Resistance, points | 15 to 52 | |
| 15 |
Alloy Composition
| Carbon (C), % | 0.34 to 0.41 | |
| 0 to 0.030 |
| Chromium (Cr), % | 0.9 to 1.2 | |
| 10.5 to 11.7 |
| Iron (Fe), % | 97 to 98.2 | |
| 85.1 to 89.4 |
| Manganese (Mn), % | 0.6 to 0.9 | |
| 0 to 1.0 |
| Nickel (Ni), % | 0 | |
| 0 to 0.5 |
| Niobium (Nb), % | 0 | |
| 0 to 0.1 |
| Nitrogen (N), % | 0 | |
| 0 to 0.030 |
| Phosphorus (P), % | 0 to 0.035 | |
| 0 to 0.040 |
| Silicon (Si), % | 0 to 0.4 | |
| 0 to 1.0 |
| Sulfur (S), % | 0 to 0.035 | |
| 0 to 0.020 |
| Titanium (Ti), % | 0 | |
| 0.15 to 0.5 |