EN 1.4031 Stainless Steel vs. EN 1.7380 Steel
Both EN 1.4031 stainless steel and EN 1.7380 steel are iron alloys. They have 88% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.
For each property being compared, the top bar is EN 1.4031 stainless steel and the bottom bar is EN 1.7380 steel.
Metric UnitsUS Customary Units
Mechanical Properties
Elastic (Young's, Tensile) Modulus, GPa | 190 | |
190 |
Elongation at Break, % | 11 to 13 | |
19 to 20 |
Fatigue Strength, MPa | 220 to 400 | |
200 to 230 |
Poisson's Ratio | 0.28 | |
0.29 |
Shear Modulus, GPa | 76 | |
74 |
Shear Strength, MPa | 400 to 540 | |
330 to 350 |
Tensile Strength: Ultimate (UTS), MPa | 670 to 900 | |
540 to 550 |
Tensile Strength: Yield (Proof), MPa | 390 to 730 | |
290 to 330 |
Thermal Properties
Latent Heat of Fusion, J/g | 280 | |
260 |
Maximum Temperature: Mechanical, °C | 770 | |
460 |
Melting Completion (Liquidus), °C | 1440 | |
1470 |
Melting Onset (Solidus), °C | 1400 | |
1430 |
Specific Heat Capacity, J/kg-K | 480 | |
470 |
Thermal Conductivity, W/m-K | 30 | |
39 |
Thermal Expansion, µm/m-K | 11 | |
13 |
Electrical Properties
Electrical Conductivity: Equal Volume, % IACS | 3.1 | |
7.6 |
Electrical Conductivity: Equal Weight (Specific), % IACS | 3.7 | |
8.7 |
Otherwise Unclassified Properties
Base Metal Price, % relative | 7.0 | |
3.8 |
Density, g/cm3 | 7.7 | |
7.9 |
Embodied Carbon, kg CO2/kg material | 1.9 | |
1.8 |
Embodied Energy, MJ/kg | 27 | |
23 |
Embodied Water, L/kg | 100 | |
59 |
Common Calculations
PREN (Pitting Resistance) | 14 | |
5.6 |
Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 77 to 94 | |
87 to 98 |
Resilience: Unit (Modulus of Resilience), kJ/m3 | 380 to 1360 | |
230 to 280 |
Stiffness to Weight: Axial, points | 14 | |
13 |
Stiffness to Weight: Bending, points | 25 | |
24 |
Strength to Weight: Axial, points | 24 to 32 | |
19 to 20 |
Strength to Weight: Bending, points | 22 to 27 | |
19 |
Thermal Diffusivity, mm2/s | 8.1 | |
11 |
Thermal Shock Resistance, points | 23 to 32 | |
15 to 16 |
Alloy Composition
Carbon (C), % | 0.36 to 0.42 | |
0.080 to 0.14 |
Chromium (Cr), % | 12.5 to 14.5 | |
2.0 to 2.5 |
Copper (Cu), % | 0 | |
0 to 0.3 |
Iron (Fe), % | 83 to 87.1 | |
94.6 to 96.6 |
Manganese (Mn), % | 0 to 1.0 | |
0.4 to 0.8 |
Molybdenum (Mo), % | 0 | |
0.9 to 1.1 |
Nitrogen (N), % | 0 | |
0 to 0.012 |
Phosphorus (P), % | 0 to 0.040 | |
0 to 0.020 |
Silicon (Si), % | 0 to 1.0 | |
0 to 0.5 |
Sulfur (S), % | 0 to 0.015 | |
0 to 0.010 |