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R60704 Alloy vs. Grade 18 Titanium

R60704 alloy belongs to the otherwise unclassified metals classification, while grade 18 titanium belongs to the titanium alloys. There are 20 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is R60704 alloy and the bottom bar is grade 18 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 97
110
Elongation at Break, % 16
11 to 17
Poisson's Ratio 0.34
0.32
Shear Modulus, GPa 36
40
Tensile Strength: Ultimate (UTS), MPa 470
690 to 980
Tensile Strength: Yield (Proof), MPa 270
540 to 810

Thermal Properties

Latent Heat of Fusion, J/g 240
410
Specific Heat Capacity, J/kg-K 270
550
Thermal Conductivity, W/m-K 22
8.3
Thermal Expansion, µm/m-K 6.0
9.9

Otherwise Unclassified Properties

Density, g/cm3 6.7
4.5
Embodied Water, L/kg 460
270

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 64
87 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 370
1380 to 3110
Stiffness to Weight: Axial, points 8.1
13
Stiffness to Weight: Bending, points 23
35
Strength to Weight: Axial, points 20
43 to 61
Strength to Weight: Bending, points 20
39 to 49
Thermal Diffusivity, mm2/s 12
3.4
Thermal Shock Resistance, points 58
47 to 67

Alloy Composition

Aluminum (Al), % 0
2.5 to 3.5
Carbon (C), % 0 to 0.050
0 to 0.080
Chromium (Cr), % 0.2 to 0.4
0
Hafnium (Hf), % 0 to 4.5
0
Hydrogen (H), % 0 to 0.0050
0 to 0.015
Iron (Fe), % 0.2 to 0.4
0 to 0.25
Nitrogen (N), % 0 to 0.025
0 to 0.030
Oxygen (O), % 0 to 0.18
0 to 0.15
Palladium (Pd), % 0
0.040 to 0.080
Tin (Sn), % 1.0 to 2.0
0
Titanium (Ti), % 0
92.5 to 95.5
Vanadium (V), % 0
2.0 to 3.0
Zirconium (Zr), % 93 to 98.8
0
Residuals, % 0
0 to 0.4