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Grade 27 Titanium vs. AWS BAg-3

Grade 27 titanium belongs to the titanium alloys classification, while AWS BAg-3 belongs to the otherwise unclassified metals. There are 17 material properties with values for both materials. Properties with values for just one material (15, in this case) are not shown. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.

For each property being compared, the top bar is grade 27 titanium and the bottom bar is AWS BAg-3.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
80
Poisson's Ratio 0.32
0.33
Shear Modulus, GPa 41
30
Tensile Strength: Ultimate (UTS), MPa 270
170

Thermal Properties

Latent Heat of Fusion, J/g 420
120
Melting Completion (Liquidus), °C 1660
690
Melting Onset (Solidus), °C 1610
630
Specific Heat Capacity, J/kg-K 540
290
Thermal Expansion, µm/m-K 8.7
22

Otherwise Unclassified Properties

Density, g/cm3 4.5
9.3
Embodied Carbon, kg CO2/kg material 33
49
Embodied Energy, MJ/kg 530
770

Common Calculations

Stiffness to Weight: Axial, points 13
4.8
Stiffness to Weight: Bending, points 35
15
Strength to Weight: Axial, points 17
5.1
Strength to Weight: Bending, points 21
7.3
Thermal Shock Resistance, points 21
6.9

Alloy Composition

Cadmium (Cd), % 0
15 to 17
Carbon (C), % 0 to 0.080
0
Copper (Cu), % 0
14.5 to 16.5
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.2
0
Nickel (Ni), % 0
2.5 to 3.5
Nitrogen (N), % 0 to 0.030
0
Oxygen (O), % 0 to 0.18
0
Ruthenium (Ru), % 0.080 to 0.14
0
Silver (Ag), % 0
49 to 51
Titanium (Ti), % 99 to 99.92
0
Zinc (Zn), % 0
13.5 to 17.5
Residuals, % 0
0 to 0.15