EN 1.7139 Steel vs. S21904 Stainless Steel
Both EN 1.7139 steel and S21904 stainless steel are iron alloys. They have 66% of their average alloy composition in common. There are 25 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.
For each property being compared, the top bar is EN 1.7139 steel and the bottom bar is S21904 stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
Brinell Hardness | 150 to 180 | |
210 to 300 |
Elastic (Young's, Tensile) Modulus, GPa | 190 | |
200 |
Poisson's Ratio | 0.29 | |
0.28 |
Shear Modulus, GPa | 73 | |
78 |
Tensile Strength: Ultimate (UTS), MPa | 480 to 1390 | |
700 to 1000 |
Thermal Properties
Latent Heat of Fusion, J/g | 250 | |
290 |
Maximum Temperature: Mechanical, °C | 420 | |
980 |
Melting Completion (Liquidus), °C | 1460 | |
1400 |
Melting Onset (Solidus), °C | 1420 | |
1350 |
Specific Heat Capacity, J/kg-K | 470 | |
480 |
Thermal Conductivity, W/m-K | 44 | |
14 |
Thermal Expansion, µm/m-K | 13 | |
17 |
Electrical Properties
Electrical Conductivity: Equal Volume, % IACS | 7.3 | |
2.5 |
Electrical Conductivity: Equal Weight (Specific), % IACS | 8.3 | |
2.9 |
Otherwise Unclassified Properties
Base Metal Price, % relative | 2.2 | |
15 |
Density, g/cm3 | 7.8 | |
7.7 |
Embodied Carbon, kg CO2/kg material | 1.4 | |
3.0 |
Embodied Energy, MJ/kg | 19 | |
43 |
Embodied Water, L/kg | 51 | |
160 |
Common Calculations
Stiffness to Weight: Axial, points | 13 | |
14 |
Stiffness to Weight: Bending, points | 24 | |
25 |
Strength to Weight: Axial, points | 17 to 49 | |
25 to 36 |
Strength to Weight: Bending, points | 17 to 35 | |
23 to 29 |
Thermal Diffusivity, mm2/s | 12 | |
3.8 |
Thermal Shock Resistance, points | 14 to 41 | |
15 to 21 |
Alloy Composition
Carbon (C), % | 0.14 to 0.19 | |
0 to 0.040 |
Chromium (Cr), % | 0.8 to 1.1 | |
19 to 21.5 |
Copper (Cu), % | 0 to 0.25 | |
0 |
Iron (Fe), % | 96.8 to 98 | |
59.5 to 67.4 |
Manganese (Mn), % | 1.0 to 1.3 | |
8.0 to 10 |
Nickel (Ni), % | 0 | |
5.5 to 7.5 |
Nitrogen (N), % | 0 | |
0.15 to 0.4 |
Phosphorus (P), % | 0 to 0.025 | |
0 to 0.045 |
Silicon (Si), % | 0 to 0.3 | |
0 to 1.0 |
Sulfur (S), % | 0.020 to 0.040 | |
0 to 0.030 |