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Automotive Grey Cast Iron vs. Titanium 6-6-2

Automotive grey cast iron belongs to the iron alloys classification, while titanium 6-6-2 belongs to the titanium alloys. There are 26 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is automotive grey cast iron and the bottom bar is titanium 6-6-2.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 180
120
Elongation at Break, % 9.6 to 14
6.7 to 9.0
Poisson's Ratio 0.29
0.32
Shear Modulus, GPa 69 to 70
44
Tensile Strength: Ultimate (UTS), MPa 140 to 290
1140 to 1370
Tensile Strength: Yield (Proof), MPa 94 to 200
1040 to 1230

Thermal Properties

Latent Heat of Fusion, J/g 260 to 280
400
Melting Completion (Liquidus), °C 1380 to 1390
1610
Melting Onset (Solidus), °C 1340 to 1350
1560
Specific Heat Capacity, J/kg-K 490
540
Thermal Conductivity, W/m-K 41 to 43
5.5
Thermal Expansion, µm/m-K 12 to 14
9.4

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4 to 7.6
1.1
Electrical Conductivity: Equal Weight (Specific), % IACS 8.8 to 9.1
2.1

Otherwise Unclassified Properties

Base Metal Price, % relative 1.9 to 3.0
40
Density, g/cm3 7.5 to 7.6
4.8
Embodied Carbon, kg CO2/kg material 1.5 to 1.7
29
Embodied Energy, MJ/kg 21 to 24
470
Embodied Water, L/kg 44 to 51
200

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 18 to 25
89 to 99
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 25
34
Strength to Weight: Axial, points 5.2 to 11
66 to 79
Strength to Weight: Bending, points 8.0 to 13
50 to 57
Thermal Diffusivity, mm2/s 11 to 12
2.1
Thermal Shock Resistance, points 4.2 to 8.6
75 to 90