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Grade 28 Titanium vs. AWS BNi-10

Grade 28 titanium belongs to the titanium alloys classification, while AWS BNi-10 belongs to the nickel alloys. There are 19 material properties with values for both materials. Properties with values for just one material (13, 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 28 titanium and the bottom bar is AWS BNi-10.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
200
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 40
76
Tensile Strength: Ultimate (UTS), MPa 690 to 980
600

Thermal Properties

Latent Heat of Fusion, J/g 410
330
Melting Completion (Liquidus), °C 1640
1110
Melting Onset (Solidus), °C 1590
970
Specific Heat Capacity, J/kg-K 550
440
Thermal Expansion, µm/m-K 9.9
11

Otherwise Unclassified Properties

Base Metal Price, % relative 36
80
Density, g/cm3 4.5
9.4
Embodied Carbon, kg CO2/kg material 37
11
Embodied Energy, MJ/kg 600
160
Embodied Water, L/kg 370
230

Common Calculations

Stiffness to Weight: Axial, points 13
12
Stiffness to Weight: Bending, points 35
21
Strength to Weight: Axial, points 43 to 61
18
Strength to Weight: Bending, points 39 to 49
17
Thermal Shock Resistance, points 47 to 66
19

Alloy Composition

Aluminum (Al), % 2.5 to 3.5
0 to 0.050
Boron (B), % 0
2.0 to 3.0
Carbon (C), % 0 to 0.080
0.4 to 0.55
Chromium (Cr), % 0
10 to 13
Cobalt (Co), % 0
0 to 0.1
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.25
2.5 to 4.5
Nickel (Ni), % 0
57.2 to 67.1
Nitrogen (N), % 0 to 0.030
0
Oxygen (O), % 0 to 0.15
0
Phosphorus (P), % 0
0 to 0.020
Ruthenium (Ru), % 0.080 to 0.14
0
Selenium (Se), % 0
0 to 0.0050
Silicon (Si), % 0
3.0 to 4.0
Sulfur (S), % 0
0 to 0.020
Titanium (Ti), % 92.4 to 95.4
0 to 0.050
Tungsten (W), % 0
15 to 17
Vanadium (V), % 2.0 to 3.0
0
Zirconium (Zr), % 0
0 to 0.050
Residuals, % 0
0 to 0.5