EN 1.4310 Stainless Steel vs. EN 1.7321 Steel
Both EN 1.4310 stainless steel and EN 1.7321 steel are iron alloys. They have 74% 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 1.4310 stainless steel and the bottom bar is EN 1.7321 steel.
Metric UnitsUS Customary Units
Mechanical Properties
Brinell Hardness | 200 to 270 | |
150 to 170 |
Elastic (Young's, Tensile) Modulus, GPa | 200 | |
190 |
Poisson's Ratio | 0.28 | |
0.29 |
Shear Modulus, GPa | 77 | |
73 |
Tensile Strength: Ultimate (UTS), MPa | 730 to 900 | |
490 to 1460 |
Thermal Properties
Latent Heat of Fusion, J/g | 290 | |
250 |
Maximum Temperature: Mechanical, °C | 910 | |
410 |
Melting Completion (Liquidus), °C | 1420 | |
1460 |
Melting Onset (Solidus), °C | 1380 | |
1420 |
Specific Heat Capacity, J/kg-K | 480 | |
470 |
Thermal Conductivity, W/m-K | 15 | |
45 |
Thermal Expansion, µm/m-K | 18 | |
13 |
Electrical Properties
Electrical Conductivity: Equal Volume, % IACS | 2.4 | |
7.2 |
Electrical Conductivity: Equal Weight (Specific), % IACS | 2.7 | |
8.3 |
Otherwise Unclassified Properties
Base Metal Price, % relative | 14 | |
2.5 |
Density, g/cm3 | 7.8 | |
7.9 |
Embodied Carbon, kg CO2/kg material | 2.9 | |
1.5 |
Embodied Energy, MJ/kg | 42 | |
20 |
Embodied Water, L/kg | 140 | |
50 |
Common Calculations
Stiffness to Weight: Axial, points | 14 | |
13 |
Stiffness to Weight: Bending, points | 25 | |
24 |
Strength to Weight: Axial, points | 26 to 32 | |
17 to 52 |
Strength to Weight: Bending, points | 23 to 27 | |
18 to 36 |
Thermal Diffusivity, mm2/s | 4.0 | |
12 |
Thermal Shock Resistance, points | 15 to 18 | |
14 to 43 |
Alloy Composition
Carbon (C), % | 0.050 to 0.15 | |
0.17 to 0.23 |
Chromium (Cr), % | 16 to 19 | |
0.3 to 0.6 |
Copper (Cu), % | 0 | |
0 to 0.25 |
Iron (Fe), % | 66.4 to 78 | |
97.1 to 98.4 |
Manganese (Mn), % | 0 to 2.0 | |
0.7 to 1.0 |
Molybdenum (Mo), % | 0 to 0.8 | |
0.4 to 0.5 |
Nickel (Ni), % | 6.0 to 9.5 | |
0 |
Nitrogen (N), % | 0 to 0.1 | |
0 |
Phosphorus (P), % | 0 to 0.045 | |
0 to 0.025 |
Silicon (Si), % | 0 to 2.0 | |
0 to 0.3 |
Sulfur (S), % | 0 to 0.015 | |
0 to 0.025 |