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Grade C-2 Titanium vs. SAE-AISI M3 Class 2 Steel

Grade C-2 titanium belongs to the titanium alloys classification, while SAE-AISI M3 class 2 steel belongs to the iron 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 grade C-2 titanium and the bottom bar is SAE-AISI M3 class 2 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
200
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 40
77
Tensile Strength: Ultimate (UTS), MPa 390
770 to 2210

Thermal Properties

Latent Heat of Fusion, J/g 420
260
Melting Completion (Liquidus), °C 1660
1620
Melting Onset (Solidus), °C 1610
1570
Specific Heat Capacity, J/kg-K 540
440
Thermal Conductivity, W/m-K 21
26
Thermal Expansion, µm/m-K 8.7
12

Otherwise Unclassified Properties

Base Metal Price, % relative 37
25
Density, g/cm3 4.5
8.3
Embodied Carbon, kg CO2/kg material 31
12
Embodied Energy, MJ/kg 510
180
Embodied Water, L/kg 110
110

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 35
23
Strength to Weight: Axial, points 24
26 to 74
Strength to Weight: Bending, points 26
22 to 45
Thermal Diffusivity, mm2/s 8.8
7.2
Thermal Shock Resistance, points 30
24 to 69

Alloy Composition

Carbon (C), % 0 to 0.1
1.2 to 1.3
Chromium (Cr), % 0
3.8 to 4.5
Copper (Cu), % 0
0 to 0.25
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.2
75.8 to 82.3
Manganese (Mn), % 0
0.15 to 0.4
Molybdenum (Mo), % 0
4.8 to 6.5
Nickel (Ni), % 0 to 0.050
0 to 0.3
Oxygen (O), % 0 to 0.4
0
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0
0.2 to 0.45
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 98.8 to 100
0
Tungsten (W), % 0
5.0 to 6.8
Vanadium (V), % 0
2.8 to 3.8
Residuals, % 0 to 0.4
0