SAE-AISI T2 Steel vs. SAE-AISI M42 Steel
Both SAE-AISI T2 steel and SAE-AISI M42 steel are iron alloys. They have 82% of their average alloy composition in common.
For each property being compared, the top bar is SAE-AISI T2 steel and the bottom bar is SAE-AISI M42 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 | 79 | |
78 |
Tensile Strength: Ultimate (UTS), MPa | 780 to 2150 | |
810 to 2310 |
Thermal Properties
Latent Heat of Fusion, J/g | 250 | |
270 |
Melting Completion (Liquidus), °C | 1820 | |
1540 |
Melting Onset (Solidus), °C | 1760 | |
1490 |
Specific Heat Capacity, J/kg-K | 410 | |
450 |
Thermal Conductivity, W/m-K | 19 | |
20 |
Thermal Expansion, µm/m-K | 12 | |
12 |
Otherwise Unclassified Properties
Base Metal Price, % relative | 46 | |
30 |
Density, g/cm3 | 9.3 | |
8.2 |
Embodied Carbon, kg CO2/kg material | 11 | |
7.4 |
Embodied Energy, MJ/kg | 170 | |
100 |
Embodied Water, L/kg | 98 | |
140 |
Common Calculations
PREN (Pitting Resistance) | 36 | |
38 |
Stiffness to Weight: Axial, points | 12 | |
14 |
Stiffness to Weight: Bending, points | 21 | |
24 |
Strength to Weight: Axial, points | 23 to 64 | |
28 to 79 |
Strength to Weight: Bending, points | 20 to 40 | |
24 to 48 |
Thermal Diffusivity, mm2/s | 4.9 | |
5.4 |
Thermal Shock Resistance, points | 23 to 65 | |
25 to 71 |
Alloy Composition
Carbon (C), % | 0.8 to 0.9 | |
1.1 to 1.2 |
Chromium (Cr), % | 3.8 to 4.5 | |
3.5 to 4.3 |
Cobalt (Co), % | 0 | |
7.8 to 8.8 |
Copper (Cu), % | 0 to 0.25 | |
0 to 0.25 |
Iron (Fe), % | 70.8 to 75.8 | |
76.3 to 81 |
Manganese (Mn), % | 0.2 to 0.4 | |
0.15 to 0.4 |
Molybdenum (Mo), % | 0 to 1.0 | |
9.0 to 10 |
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 0.4 | |
0.15 to 0.65 |
Sulfur (S), % | 0 to 0.030 | |
0 to 0.030 |
Tungsten (W), % | 17.5 to 19 | |
1.2 to 1.9 |
Vanadium (V), % | 1.8 to 2.4 | |
1.0 to 1.4 |