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Grade C-6 Titanium vs. SAE-AISI M44 Steel

Grade C-6 titanium belongs to the titanium alloys classification, while SAE-AISI M44 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-6 titanium and the bottom bar is SAE-AISI M44 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
200
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 39
78
Tensile Strength: Ultimate (UTS), MPa 890
870 to 2290

Thermal Properties

Latent Heat of Fusion, J/g 410
270
Melting Completion (Liquidus), °C 1580
1590
Melting Onset (Solidus), °C 1530
1540
Specific Heat Capacity, J/kg-K 550
440
Thermal Conductivity, W/m-K 7.8
14
Thermal Expansion, µm/m-K 9.8
12

Otherwise Unclassified Properties

Base Metal Price, % relative 36
43
Density, g/cm3 4.5
8.4
Embodied Carbon, kg CO2/kg material 30
9.9
Embodied Energy, MJ/kg 480
150
Embodied Water, L/kg 190
170

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 35
23
Strength to Weight: Axial, points 55
28 to 75
Strength to Weight: Bending, points 46
24 to 46
Thermal Diffusivity, mm2/s 3.2
3.7
Thermal Shock Resistance, points 63
27 to 70

Alloy Composition

Aluminum (Al), % 4.0 to 6.0
0
Carbon (C), % 0 to 0.1
1.1 to 1.2
Chromium (Cr), % 0
4.0 to 4.8
Cobalt (Co), % 0
11 to 12.3
Copper (Cu), % 0
0 to 0.25
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.5
65.3 to 70.6
Manganese (Mn), % 0
0.2 to 0.4
Molybdenum (Mo), % 0
6.0 to 7.0
Nickel (Ni), % 0 to 0.050
0 to 0.3
Oxygen (O), % 0 to 0.2
0
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0
0.3 to 0.55
Sulfur (S), % 0
0 to 0.030
Tin (Sn), % 2.0 to 3.0
0
Titanium (Ti), % 89.7 to 94
0
Tungsten (W), % 0
5.0 to 5.8
Vanadium (V), % 0
1.9 to 2.2
Residuals, % 0 to 0.4
0