EN 1.4034 Stainless Steel vs. EN 1.7231 Steel
Both EN 1.4034 stainless steel and EN 1.7231 steel are iron alloys. They have 87% of their average alloy composition in common. There are 29 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 1.4034 stainless steel and the bottom bar is EN 1.7231 steel.
Metric UnitsUS Customary Units
Mechanical Properties
Elastic (Young's, Tensile) Modulus, GPa | 190 | |
190 |
Elongation at Break, % | 11 to 14 | |
11 to 12 |
Fatigue Strength, MPa | 230 to 400 | |
360 to 500 |
Poisson's Ratio | 0.28 | |
0.29 |
Shear Modulus, GPa | 76 | |
73 |
Tensile Strength: Ultimate (UTS), MPa | 690 to 900 | |
790 to 930 |
Tensile Strength: Yield (Proof), MPa | 390 to 730 | |
570 to 800 |
Thermal Properties
Latent Heat of Fusion, J/g | 270 | |
250 |
Maximum Temperature: Mechanical, °C | 770 | |
420 |
Melting Completion (Liquidus), °C | 1440 | |
1460 |
Melting Onset (Solidus), °C | 1390 | |
1420 |
Specific Heat Capacity, J/kg-K | 480 | |
470 |
Thermal Conductivity, W/m-K | 30 | |
46 |
Thermal Expansion, µm/m-K | 11 | |
13 |
Electrical Properties
Electrical Conductivity: Equal Volume, % IACS | 3.1 | |
7.3 |
Electrical Conductivity: Equal Weight (Specific), % IACS | 3.7 | |
8.4 |
Otherwise Unclassified Properties
Base Metal Price, % relative | 7.0 | |
2.5 |
Density, g/cm3 | 7.7 | |
7.8 |
Embodied Carbon, kg CO2/kg material | 2.0 | |
1.5 |
Embodied Energy, MJ/kg | 27 | |
20 |
Embodied Water, L/kg | 100 | |
51 |
Common Calculations
Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 81 to 94 | |
87 to 100 |
Resilience: Unit (Modulus of Resilience), kJ/m3 | 400 to 1370 | |
870 to 1700 |
Stiffness to Weight: Axial, points | 14 | |
13 |
Stiffness to Weight: Bending, points | 25 | |
24 |
Strength to Weight: Axial, points | 25 to 32 | |
28 to 33 |
Strength to Weight: Bending, points | 22 to 27 | |
24 to 27 |
Thermal Diffusivity, mm2/s | 8.1 | |
12 |
Thermal Shock Resistance, points | 24 to 32 | |
23 to 27 |
Alloy Composition
Carbon (C), % | 0.43 to 0.5 | |
0.38 to 0.45 |
Chromium (Cr), % | 12.5 to 14.5 | |
0.8 to 1.2 |
Iron (Fe), % | 83 to 87.1 | |
96.4 to 98.1 |
Manganese (Mn), % | 0 to 1.0 | |
0.6 to 1.0 |
Molybdenum (Mo), % | 0 | |
0.15 to 0.3 |
Phosphorus (P), % | 0 to 0.040 | |
0 to 0.025 |
Silicon (Si), % | 0 to 1.0 | |
0 to 0.6 |
Sulfur (S), % | 0 to 0.015 | |
0 to 0.030 |