SAE-AISI 5145 Steel vs. EN 1.4740 Stainless Steel
Both SAE-AISI 5145 steel and EN 1.4740 stainless steel are iron alloys. Both are furnished in the annealed condition. They have 81% of their average alloy composition in common. There are 22 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.
For each property being compared, the top bar is SAE-AISI 5145 steel and the bottom bar is EN 1.4740 stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
Brinell Hardness | 170 | |
260 |
Elastic (Young's, Tensile) Modulus, GPa | 190 | |
200 |
Elongation at Break, % | 20 | |
22 |
Poisson's Ratio | 0.29 | |
0.28 |
Shear Modulus, GPa | 73 | |
77 |
Thermal Properties
Latent Heat of Fusion, J/g | 250 | |
300 |
Maximum Temperature: Mechanical, °C | 420 | |
900 |
Melting Completion (Liquidus), °C | 1460 | |
1420 |
Melting Onset (Solidus), °C | 1410 | |
1370 |
Specific Heat Capacity, J/kg-K | 470 | |
490 |
Thermal Conductivity, W/m-K | 47 | |
18 |
Thermal Expansion, µm/m-K | 12 | |
10 |
Electrical Properties
Electrical Conductivity: Equal Volume, % IACS | 7.2 | |
2.2 |
Electrical Conductivity: Equal Weight (Specific), % IACS | 8.3 | |
2.6 |
Otherwise Unclassified Properties
Base Metal Price, % relative | 2.1 | |
9.5 |
Density, g/cm3 | 7.8 | |
7.6 |
Embodied Carbon, kg CO2/kg material | 1.4 | |
2.3 |
Embodied Energy, MJ/kg | 19 | |
32 |
Embodied Water, L/kg | 49 | |
120 |
Common Calculations
Stiffness to Weight: Axial, points | 13 | |
14 |
Stiffness to Weight: Bending, points | 24 | |
25 |
Thermal Diffusivity, mm2/s | 13 | |
4.8 |
Alloy Composition
Carbon (C), % | 0.43 to 0.48 | |
0.3 to 0.5 |
Chromium (Cr), % | 0.7 to 0.9 | |
16 to 19 |
Iron (Fe), % | 97.3 to 98 | |
75.4 to 82.7 |
Manganese (Mn), % | 0.7 to 0.9 | |
0 to 1.0 |
Molybdenum (Mo), % | 0 | |
0 to 0.5 |
Nickel (Ni), % | 0 | |
0 to 1.0 |
Phosphorus (P), % | 0 to 0.035 | |
0 to 0.040 |
Silicon (Si), % | 0.15 to 0.35 | |
1.0 to 2.5 |
Sulfur (S), % | 0 to 0.040 | |
0 to 0.030 |