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SAE-AISI M3 Class 1 Steel vs. Titanium 6-2-4-2

SAE-AISI M3 class 1 steel belongs to the iron alloys classification, while titanium 6-2-4-2 belongs to the titanium alloys. There are 21 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI M3 class 1 steel and the bottom bar is titanium 6-2-4-2.

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 770 to 2150
950

Thermal Properties

Latent Heat of Fusion, J/g 260
400
Melting Completion (Liquidus), °C 1610
1590
Melting Onset (Solidus), °C 1570
1540
Specific Heat Capacity, J/kg-K 440
540
Thermal Conductivity, W/m-K 26
6.9
Thermal Expansion, µm/m-K 12
9.5

Otherwise Unclassified Properties

Base Metal Price, % relative 25
42
Density, g/cm3 8.3
4.6
Embodied Carbon, kg CO2/kg material 10
32
Embodied Energy, MJ/kg 150
520
Embodied Water, L/kg 100
210

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 23
34
Strength to Weight: Axial, points 26 to 72
57
Strength to Weight: Bending, points 22 to 44
46
Thermal Diffusivity, mm2/s 7.2
2.8
Thermal Shock Resistance, points 24 to 67
67

Alloy Composition


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Aluminum (Al), % 0
5.5 to 6.5
Carbon (C), % 1.0 to 1.1
0 to 0.050
Chromium (Cr), % 3.8 to 4.5
0
Copper (Cu), % 0 to 0.25
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 76.9 to 82.9
0 to 0.25
Manganese (Mn), % 0.15 to 0.4
0
Molybdenum (Mo), % 4.8 to 6.5
1.8 to 2.2
Nickel (Ni), % 0 to 0.3
0
Nitrogen (N), % 0
0 to 0.050
Oxygen (O), % 0
0 to 0.15
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0.2 to 0.45
0.060 to 0.12
Sulfur (S), % 0 to 0.030
0
Tin (Sn), % 0
1.8 to 2.2
Titanium (Ti), % 0
83.7 to 87.2
Tungsten (W), % 5.0 to 6.8
0
Vanadium (V), % 2.3 to 2.8
0
Zirconium (Zr), % 0
3.6 to 4.4
Residuals, % 0
0 to 0.4