SAE-AISI M42 Steel vs. SAE-AISI M1 Steel
Both SAE-AISI M42 steel and SAE-AISI M1 steel are iron alloys. They have a very high 96% of their average alloy composition in common.
For each property being compared, the top bar is SAE-AISI M42 steel and the bottom bar is SAE-AISI M1 steel.
Metric UnitsUS Customary Units
Mechanical Properties
Elastic (Young's, Tensile) Modulus, GPa | 200 | |
200 |
Poisson's Ratio | 0.29 | |
0.29 |
Shear Modulus, GPa | 78 | |
77 |
Tensile Strength: Ultimate (UTS), MPa | 810 to 2310 | |
730 to 2140 |
Thermal Properties
Latent Heat of Fusion, J/g | 270 | |
270 |
Melting Completion (Liquidus), °C | 1540 | |
1560 |
Melting Onset (Solidus), °C | 1490 | |
1510 |
Specific Heat Capacity, J/kg-K | 450 | |
450 |
Thermal Conductivity, W/m-K | 20 | |
29 |
Thermal Expansion, µm/m-K | 12 | |
12 |
Otherwise Unclassified Properties
Base Metal Price, % relative | 30 | |
18 |
Density, g/cm3 | 8.2 | |
8.1 |
Embodied Carbon, kg CO2/kg material | 7.4 | |
7.0 |
Embodied Energy, MJ/kg | 100 | |
99 |
Embodied Water, L/kg | 140 | |
98 |
Common Calculations
PREN (Pitting Resistance) | 38 | |
35 |
Stiffness to Weight: Axial, points | 14 | |
14 |
Stiffness to Weight: Bending, points | 24 | |
24 |
Strength to Weight: Axial, points | 28 to 79 | |
25 to 73 |
Strength to Weight: Bending, points | 24 to 48 | |
22 to 45 |
Thermal Diffusivity, mm2/s | 5.4 | |
8.0 |
Thermal Shock Resistance, points | 25 to 71 | |
23 to 66 |
Alloy Composition
Carbon (C), % | 1.1 to 1.2 | |
0.78 to 0.88 |
Chromium (Cr), % | 3.5 to 4.3 | |
3.5 to 4.0 |
Cobalt (Co), % | 7.8 to 8.8 | |
0 |
Copper (Cu), % | 0 to 0.25 | |
0 to 0.25 |
Iron (Fe), % | 76.3 to 81 | |
81 to 84.8 |
Manganese (Mn), % | 0.15 to 0.4 | |
0.15 to 0.4 |
Molybdenum (Mo), % | 9.0 to 10 | |
8.2 to 9.2 |
Nickel (Ni), % | 0 to 0.3 | |
0 to 0.3 |
Phosphorus (P), % | 0 to 0.030 | |
0 to 0.030 |
Silicon (Si), % | 0.15 to 0.65 | |
0.2 to 0.5 |
Sulfur (S), % | 0 to 0.030 | |
0 to 0.030 |
Tungsten (W), % | 1.2 to 1.9 | |
1.4 to 2.1 |
Vanadium (V), % | 1.0 to 1.4 | |
1.0 to 1.4 |