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Grade 32 Titanium vs. ACI-ASTM CH20 Steel

Grade 32 titanium belongs to the titanium alloys classification, while ACI-ASTM CH20 steel belongs to the iron alloys. There are 29 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is grade 32 titanium and the bottom bar is ACI-ASTM CH20 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
200
Elongation at Break, % 11
38
Fatigue Strength, MPa 390
290
Poisson's Ratio 0.32
0.27
Shear Modulus, GPa 40
78
Tensile Strength: Ultimate (UTS), MPa 770
610
Tensile Strength: Yield (Proof), MPa 670
350

Thermal Properties

Latent Heat of Fusion, J/g 410
310
Maximum Temperature: Mechanical, °C 310
1100
Melting Completion (Liquidus), °C 1610
1410
Melting Onset (Solidus), °C 1560
1430
Specific Heat Capacity, J/kg-K 550
480
Thermal Conductivity, W/m-K 7.5
14
Thermal Expansion, µm/m-K 8.2
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.0
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 2.1
2.3

Otherwise Unclassified Properties

Base Metal Price, % relative 38
20
Density, g/cm3 4.5
7.8
Embodied Carbon, kg CO2/kg material 32
3.7
Embodied Energy, MJ/kg 530
53
Embodied Water, L/kg 180
180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 83
200
Resilience: Unit (Modulus of Resilience), kJ/m3 2100
300
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 35
25
Strength to Weight: Axial, points 47
22
Strength to Weight: Bending, points 41
21
Thermal Diffusivity, mm2/s 3.0
3.7
Thermal Shock Resistance, points 63
15

Alloy Composition

Aluminum (Al), % 4.5 to 5.5
0
Carbon (C), % 0 to 0.080
0 to 0.2
Chromium (Cr), % 0
22 to 26
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.25
54.7 to 66
Manganese (Mn), % 0
0 to 1.5
Molybdenum (Mo), % 0.6 to 1.2
0 to 0.5
Nickel (Ni), % 0
12 to 15
Nitrogen (N), % 0 to 0.030
0
Oxygen (O), % 0 to 0.11
0
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0.060 to 0.14
0 to 2.0
Sulfur (S), % 0
0 to 0.040
Tin (Sn), % 0.6 to 1.4
0
Titanium (Ti), % 88.1 to 93
0
Vanadium (V), % 0.6 to 1.4
0
Zirconium (Zr), % 0.6 to 1.4
0
Residuals, % 0 to 0.4
0