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SAE-AISI M1 Steel vs. Grade 24 Titanium

SAE-AISI M1 steel belongs to the iron alloys classification, while grade 24 titanium belongs to the titanium alloys. There are 20 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI M1 steel and the bottom bar is grade 24 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
110
Poisson's Ratio 0.29
0.32
Shear Modulus, GPa 77
40
Tensile Strength: Ultimate (UTS), MPa 730 to 2140
1010

Thermal Properties

Latent Heat of Fusion, J/g 270
410
Melting Completion (Liquidus), °C 1560
1610
Melting Onset (Solidus), °C 1510
1560
Specific Heat Capacity, J/kg-K 450
560
Thermal Conductivity, W/m-K 29
7.1
Thermal Expansion, µm/m-K 12
9.6

Otherwise Unclassified Properties

Density, g/cm3 8.1
4.5
Embodied Carbon, kg CO2/kg material 7.0
43
Embodied Energy, MJ/kg 99
710
Embodied Water, L/kg 98
310

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
35
Strength to Weight: Axial, points 25 to 73
63
Strength to Weight: Bending, points 22 to 45
50
Thermal Diffusivity, mm2/s 8.0
2.9
Thermal Shock Resistance, points 23 to 66
72

Alloy Composition

Aluminum (Al), % 0
5.5 to 6.8
Carbon (C), % 0.78 to 0.88
0 to 0.080
Chromium (Cr), % 3.5 to 4.0
0
Copper (Cu), % 0 to 0.25
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 81 to 84.8
0 to 0.4
Manganese (Mn), % 0.15 to 0.4
0
Molybdenum (Mo), % 8.2 to 9.2
0
Nickel (Ni), % 0 to 0.3
0
Nitrogen (N), % 0
0 to 0.050
Oxygen (O), % 0
0 to 0.2
Palladium (Pd), % 0
0.040 to 0.080
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0.2 to 0.5
0
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 0
87.5 to 91
Tungsten (W), % 1.4 to 2.1
0
Vanadium (V), % 1.0 to 1.4
3.5 to 4.5
Residuals, % 0
0 to 0.4