EN 1.4021 Stainless Steel vs. EN 1.8838 Steel
Both EN 1.4021 stainless steel and EN 1.8838 steel are iron alloys. They have 87% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.
For each property being compared, the top bar is EN 1.4021 stainless steel and the bottom bar is EN 1.8838 steel.
Metric UnitsUS Customary Units
Mechanical Properties
Elastic (Young's, Tensile) Modulus, GPa | 190 | |
190 |
Elongation at Break, % | 11 to 17 | |
19 |
Fatigue Strength, MPa | 240 to 380 | |
290 |
Poisson's Ratio | 0.28 | |
0.29 |
Shear Modulus, GPa | 76 | |
73 |
Shear Strength, MPa | 390 to 530 | |
380 |
Tensile Strength: Ultimate (UTS), MPa | 630 to 880 | |
610 |
Tensile Strength: Yield (Proof), MPa | 390 to 670 | |
430 |
Thermal Properties
Latent Heat of Fusion, J/g | 270 | |
250 |
Maximum Temperature: Mechanical, °C | 760 | |
410 |
Melting Completion (Liquidus), °C | 1440 | |
1460 |
Melting Onset (Solidus), °C | 1400 | |
1420 |
Specific Heat Capacity, J/kg-K | 480 | |
470 |
Thermal Conductivity, W/m-K | 30 | |
44 |
Thermal Expansion, µm/m-K | 11 | |
13 |
Electrical Properties
Electrical Conductivity: Equal Volume, % IACS | 2.9 | |
7.6 |
Electrical Conductivity: Equal Weight (Specific), % IACS | 3.3 | |
8.7 |
Otherwise Unclassified Properties
Base Metal Price, % relative | 7.0 | |
2.6 |
Density, g/cm3 | 7.7 | |
7.8 |
Embodied Carbon, kg CO2/kg material | 1.9 | |
1.7 |
Embodied Energy, MJ/kg | 27 | |
23 |
Embodied Water, L/kg | 100 | |
50 |
Common Calculations
Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 88 to 110 | |
100 |
Resilience: Unit (Modulus of Resilience), kJ/m3 | 400 to 1160 | |
500 |
Stiffness to Weight: Axial, points | 14 | |
13 |
Stiffness to Weight: Bending, points | 25 | |
24 |
Strength to Weight: Axial, points | 23 to 31 | |
21 |
Strength to Weight: Bending, points | 21 to 26 | |
20 |
Thermal Diffusivity, mm2/s | 8.1 | |
12 |
Thermal Shock Resistance, points | 22 to 31 | |
18 |
Alloy Composition
Aluminum (Al), % | 0 | |
0.015 to 0.054 |
Carbon (C), % | 0.16 to 0.25 | |
0 to 0.18 |
Chromium (Cr), % | 12 to 14 | |
0 to 0.35 |
Copper (Cu), % | 0 | |
0 to 0.6 |
Iron (Fe), % | 83.2 to 87.8 | |
95 to 99.985 |
Manganese (Mn), % | 0 to 1.5 | |
0 to 1.8 |
Molybdenum (Mo), % | 0 | |
0 to 0.23 |
Nickel (Ni), % | 0 | |
0 to 0.85 |
Niobium (Nb), % | 0 | |
0 to 0.060 |
Nitrogen (N), % | 0 | |
0 to 0.027 |
Phosphorus (P), % | 0 to 0.040 | |
0 to 0.030 |
Silicon (Si), % | 0 to 1.0 | |
0 to 0.65 |
Sulfur (S), % | 0 to 0.015 | |
0 to 0.025 |
Titanium (Ti), % | 0 | |
0 to 0.060 |
Vanadium (V), % | 0 | |
0 to 0.14 |