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Grade C-5 Titanium vs. Automotive Grey Cast Iron

Grade C-5 titanium belongs to the titanium alloys classification, while automotive grey cast iron belongs to the iron alloys. There are 28 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is grade C-5 titanium and the bottom bar is automotive grey cast iron.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 310
160 to 280
Elastic (Young's, Tensile) Modulus, GPa 110
180
Elongation at Break, % 6.7
9.6 to 14
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 40
69 to 70
Tensile Strength: Ultimate (UTS), MPa 1000
140 to 290
Tensile Strength: Yield (Proof), MPa 940
94 to 200

Thermal Properties

Latent Heat of Fusion, J/g 410
260 to 280
Melting Completion (Liquidus), °C 1610
1380 to 1390
Melting Onset (Solidus), °C 1560
1340 to 1350
Specific Heat Capacity, J/kg-K 560
490
Thermal Conductivity, W/m-K 7.1
41 to 43
Thermal Expansion, µm/m-K 9.6
12 to 14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.0
7.4 to 7.6
Electrical Conductivity: Equal Weight (Specific), % IACS 2.0
8.8 to 9.1

Otherwise Unclassified Properties

Base Metal Price, % relative 36
1.9 to 3.0
Density, g/cm3 4.4
7.5 to 7.6
Embodied Carbon, kg CO2/kg material 38
1.5 to 1.7
Embodied Energy, MJ/kg 610
21 to 24
Embodied Water, L/kg 200
44 to 51

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 66
18 to 25
Resilience: Unit (Modulus of Resilience), kJ/m3 4200
25 to 110
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 35
25
Strength to Weight: Axial, points 63
5.2 to 11
Strength to Weight: Bending, points 50
8.0 to 13
Thermal Diffusivity, mm2/s 2.9
11 to 12
Thermal Shock Resistance, points 71
4.2 to 8.6