SAE-AISI M2 Steel vs. SAE-AISI T15 Steel
Both SAE-AISI M2 steel and SAE-AISI T15 steel are iron alloys. They have 85% of their average alloy composition in common.
For each property being compared, the top bar is SAE-AISI M2 steel and the bottom bar is SAE-AISI T15 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 | 77 | |
76 |
Tensile Strength: Ultimate (UTS), MPa | 760 to 2150 | |
830 to 2240 |
Thermal Properties
Latent Heat of Fusion, J/g | 260 | |
250 |
Melting Completion (Liquidus), °C | 1610 | |
1690 |
Melting Onset (Solidus), °C | 1570 | |
1640 |
Specific Heat Capacity, J/kg-K | 440 | |
430 |
Thermal Conductivity, W/m-K | 22 | |
21 |
Thermal Expansion, µm/m-K | 10 | |
12 |
Otherwise Unclassified Properties
Base Metal Price, % relative | 24 | |
43 |
Density, g/cm3 | 8.4 | |
8.7 |
Embodied Carbon, kg CO2/kg material | 8.8 | |
16 |
Embodied Energy, MJ/kg | 130 | |
250 |
Embodied Water, L/kg | 98 | |
140 |
Common Calculations
PREN (Pitting Resistance) | 31 | |
27 |
Stiffness to Weight: Axial, points | 13 | |
13 |
Stiffness to Weight: Bending, points | 23 | |
22 |
Strength to Weight: Axial, points | 25 to 71 | |
26 to 71 |
Strength to Weight: Bending, points | 22 to 44 | |
22 to 43 |
Thermal Diffusivity, mm2/s | 5.9 | |
5.6 |
Thermal Shock Resistance, points | 27 to 76 | |
26 to 70 |
Alloy Composition
Carbon (C), % | 0.78 to 1.1 | |
1.5 to 1.6 |
Chromium (Cr), % | 3.8 to 4.5 | |
3.8 to 5.0 |
Cobalt (Co), % | 0 | |
4.8 to 5.3 |
Copper (Cu), % | 0 to 0.25 | |
0 to 0.25 |
Iron (Fe), % | 78.5 to 83.4 | |
67.5 to 73.5 |
Manganese (Mn), % | 0.15 to 0.4 | |
0.15 to 0.4 |
Molybdenum (Mo), % | 4.5 to 5.5 | |
0 to 1.0 |
Nickel (Ni), % | 0 to 0.3 | |
0 to 0.3 |
Phosphorus (P), % | 0 to 0.030 | |
0 to 0.030 |
Silicon (Si), % | 0.2 to 0.45 | |
0.15 to 0.4 |
Sulfur (S), % | 0 to 0.030 | |
0 to 0.030 |
Tungsten (W), % | 5.5 to 6.8 | |
11.8 to 13 |
Vanadium (V), % | 1.8 to 2.2 | |
4.5 to 5.3 |