SAE-AISI M50 Steel vs. S46800 Stainless Steel
Both SAE-AISI M50 steel and S46800 stainless steel are iron alloys. They have 84% of their average alloy composition in common. There are 24 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.
For each property being compared, the top bar is SAE-AISI M50 steel and the bottom bar is S46800 stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
Elastic (Young's, Tensile) Modulus, GPa | 190 | |
200 |
Poisson's Ratio | 0.29 | |
0.28 |
Shear Modulus, GPa | 75 | |
77 |
Tensile Strength: Ultimate (UTS), MPa | 720 to 2250 | |
470 |
Thermal Properties
Latent Heat of Fusion, J/g | 260 | |
290 |
Melting Completion (Liquidus), °C | 1480 | |
1440 |
Melting Onset (Solidus), °C | 1440 | |
1400 |
Specific Heat Capacity, J/kg-K | 470 | |
480 |
Thermal Conductivity, W/m-K | 35 | |
23 |
Thermal Expansion, µm/m-K | 13 | |
11 |
Electrical Properties
Electrical Conductivity: Equal Volume, % IACS | 8.7 | |
2.8 |
Electrical Conductivity: Equal Weight (Specific), % IACS | 10 | |
3.3 |
Otherwise Unclassified Properties
Base Metal Price, % relative | 9.0 | |
12 |
Density, g/cm3 | 7.9 | |
7.7 |
Embodied Carbon, kg CO2/kg material | 5.1 | |
2.6 |
Embodied Energy, MJ/kg | 74 | |
37 |
Embodied Water, L/kg | 83 | |
130 |
Common Calculations
PREN (Pitting Resistance) | 19 | |
19 |
Stiffness to Weight: Axial, points | 14 | |
14 |
Stiffness to Weight: Bending, points | 25 | |
25 |
Strength to Weight: Axial, points | 26 to 80 | |
17 |
Strength to Weight: Bending, points | 23 to 49 | |
18 |
Thermal Diffusivity, mm2/s | 9.7 | |
6.1 |
Thermal Shock Resistance, points | 21 to 66 | |
16 |
Alloy Composition
Carbon (C), % | 0.78 to 0.88 | |
0 to 0.030 |
Chromium (Cr), % | 3.8 to 4.5 | |
18 to 20 |
Copper (Cu), % | 0 to 0.25 | |
0 |
Iron (Fe), % | 87 to 90.4 | |
76.5 to 81.8 |
Manganese (Mn), % | 0.15 to 0.45 | |
0 to 1.0 |
Molybdenum (Mo), % | 3.9 to 4.8 | |
0 |
Nickel (Ni), % | 0 to 0.3 | |
0 to 0.5 |
Niobium (Nb), % | 0 | |
0.1 to 0.6 |
Nitrogen (N), % | 0 | |
0 to 0.030 |
Phosphorus (P), % | 0 to 0.030 | |
0 to 0.040 |
Silicon (Si), % | 0.2 to 0.6 | |
0 to 1.0 |
Sulfur (S), % | 0 to 0.030 | |
0 to 0.030 |
Titanium (Ti), % | 0 | |
0.070 to 0.3 |
Vanadium (V), % | 0.8 to 1.3 | |
0 |