EN 1.7221 Steel vs. EN 1.4923 Stainless Steel
Both EN 1.7221 steel and EN 1.4923 stainless steel are iron alloys. They have 88% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.
For each property being compared, the top bar is EN 1.7221 steel and the bottom bar is EN 1.4923 stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
Elastic (Young's, Tensile) Modulus, GPa | 190 | |
190 |
Elongation at Break, % | 11 to 17 | |
12 to 21 |
Fatigue Strength, MPa | 290 to 390 | |
300 to 440 |
Impact Strength: V-Notched Charpy, J | 20 to 38 | |
22 to 30 |
Poisson's Ratio | 0.29 | |
0.28 |
Shear Modulus, GPa | 73 | |
76 |
Tensile Strength: Ultimate (UTS), MPa | 650 to 780 | |
870 to 980 |
Tensile Strength: Yield (Proof), MPa | 430 to 630 | |
470 to 780 |
Thermal Properties
Latent Heat of Fusion, J/g | 250 | |
270 |
Maximum Temperature: Mechanical, °C | 420 | |
740 |
Melting Completion (Liquidus), °C | 1460 | |
1450 |
Melting Onset (Solidus), °C | 1420 | |
1410 |
Specific Heat Capacity, J/kg-K | 470 | |
480 |
Thermal Conductivity, W/m-K | 44 | |
24 |
Thermal Expansion, µm/m-K | 13 | |
11 |
Electrical Properties
Electrical Conductivity: Equal Volume, % IACS | 7.3 | |
2.9 |
Electrical Conductivity: Equal Weight (Specific), % IACS | 8.4 | |
3.3 |
Otherwise Unclassified Properties
Base Metal Price, % relative | 2.4 | |
8.0 |
Density, g/cm3 | 7.8 | |
7.8 |
Embodied Carbon, kg CO2/kg material | 1.5 | |
2.9 |
Embodied Energy, MJ/kg | 20 | |
41 |
Embodied Water, L/kg | 51 | |
100 |
Common Calculations
Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 83 to 98 | |
110 to 150 |
Resilience: Unit (Modulus of Resilience), kJ/m3 | 490 to 1050 | |
570 to 1580 |
Stiffness to Weight: Axial, points | 13 | |
14 |
Stiffness to Weight: Bending, points | 24 | |
25 |
Strength to Weight: Axial, points | 23 to 27 | |
31 to 35 |
Strength to Weight: Bending, points | 21 to 24 | |
26 to 28 |
Thermal Diffusivity, mm2/s | 12 | |
6.5 |
Thermal Shock Resistance, points | 19 to 23 | |
30 to 34 |
Alloy Composition
Carbon (C), % | 0.22 to 0.29 | |
0.18 to 0.24 |
Chromium (Cr), % | 0.8 to 1.2 | |
11 to 12.5 |
Iron (Fe), % | 96.8 to 98.3 | |
83.5 to 87.1 |
Manganese (Mn), % | 0.5 to 0.8 | |
0.4 to 0.9 |
Molybdenum (Mo), % | 0.15 to 0.3 | |
0.8 to 1.2 |
Nickel (Ni), % | 0 | |
0.3 to 0.8 |
Phosphorus (P), % | 0 to 0.025 | |
0 to 0.025 |
Silicon (Si), % | 0 to 0.6 | |
0 to 0.5 |
Sulfur (S), % | 0 to 0.030 | |
0 to 0.015 |
Vanadium (V), % | 0 | |
0.25 to 0.35 |