EN 1.4945 Stainless Steel vs. EN 1.7227 Steel
Both EN 1.4945 stainless steel and EN 1.7227 steel are iron alloys. They have 64% of their average alloy composition in common. There are 24 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 EN 1.4945 stainless steel and the bottom bar is EN 1.7227 steel.
Metric UnitsUS Customary Units
Mechanical Properties
Elastic (Young's, Tensile) Modulus, GPa | 200 | |
190 |
Poisson's Ratio | 0.28 | |
0.29 |
Shear Modulus, GPa | 77 | |
73 |
Tensile Strength: Ultimate (UTS), MPa | 640 to 740 | |
540 to 1850 |
Thermal Properties
Latent Heat of Fusion, J/g | 290 | |
250 |
Maximum Temperature: Mechanical, °C | 920 | |
420 |
Melting Completion (Liquidus), °C | 1490 | |
1460 |
Melting Onset (Solidus), °C | 1440 | |
1420 |
Specific Heat Capacity, J/kg-K | 470 | |
470 |
Thermal Conductivity, W/m-K | 14 | |
46 |
Thermal Expansion, µm/m-K | 17 | |
13 |
Electrical Properties
Electrical Conductivity: Equal Volume, % IACS | 2.9 | |
7.3 |
Electrical Conductivity: Equal Weight (Specific), % IACS | 3.2 | |
8.4 |
Otherwise Unclassified Properties
Base Metal Price, % relative | 30 | |
2.5 |
Density, g/cm3 | 8.1 | |
7.8 |
Embodied Carbon, kg CO2/kg material | 5.0 | |
1.5 |
Embodied Energy, MJ/kg | 73 | |
20 |
Embodied Water, L/kg | 150 | |
51 |
Common Calculations
Stiffness to Weight: Axial, points | 14 | |
13 |
Stiffness to Weight: Bending, points | 24 | |
24 |
Strength to Weight: Axial, points | 22 to 25 | |
19 to 65 |
Strength to Weight: Bending, points | 20 to 22 | |
19 to 43 |
Thermal Diffusivity, mm2/s | 3.7 | |
12 |
Thermal Shock Resistance, points | 14 to 16 | |
16 to 54 |
Alloy Composition
Carbon (C), % | 0.040 to 0.1 | |
0.38 to 0.45 |
Chromium (Cr), % | 15.5 to 17.5 | |
0.9 to 1.2 |
Copper (Cu), % | 0 | |
0 to 0.25 |
Iron (Fe), % | 57.9 to 65.7 | |
96.5 to 98 |
Manganese (Mn), % | 0 to 1.5 | |
0.6 to 0.9 |
Molybdenum (Mo), % | 0 | |
0.15 to 0.3 |
Nickel (Ni), % | 15.5 to 17.5 | |
0 |
Niobium (Nb), % | 0.4 to 1.2 | |
0 |
Nitrogen (N), % | 0.060 to 0.14 | |
0 |
Phosphorus (P), % | 0 to 0.035 | |
0 to 0.025 |
Silicon (Si), % | 0.3 to 0.6 | |
0 to 0.3 |
Sulfur (S), % | 0 to 0.015 | |
0.020 to 0.040 |
Tungsten (W), % | 2.5 to 3.5 | |
0 |