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AWS BNi-3 vs. Grade 9 Titanium

AWS BNi-3 belongs to the nickel alloys classification, while grade 9 titanium belongs to the titanium 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.

For each property being compared, the top bar is AWS BNi-3 and the bottom bar is grade 9 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 170
110
Poisson's Ratio 0.31
0.32
Shear Modulus, GPa 66
40
Tensile Strength: Ultimate (UTS), MPa 430
700 to 960

Thermal Properties

Latent Heat of Fusion, J/g 350
410
Melting Completion (Liquidus), °C 1040
1640
Melting Onset (Solidus), °C 980
1590
Specific Heat Capacity, J/kg-K 480
550
Thermal Expansion, µm/m-K 10
9.1

Otherwise Unclassified Properties

Base Metal Price, % relative 60
37
Density, g/cm3 8.3
4.5
Embodied Carbon, kg CO2/kg material 9.9
36
Embodied Energy, MJ/kg 140
580
Embodied Water, L/kg 220
150

Common Calculations

Stiffness to Weight: Axial, points 12
13
Stiffness to Weight: Bending, points 22
35
Strength to Weight: Axial, points 14
43 to 60
Strength to Weight: Bending, points 15
39 to 48
Thermal Shock Resistance, points 17
52 to 71

Alloy Composition


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Aluminum (Al), % 0 to 0.050
2.5 to 3.5
Boron (B), % 2.8 to 3.5
0
Carbon (C), % 0 to 0.060
0 to 0.080
Cobalt (Co), % 0 to 0.1
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 0 to 0.5
0 to 0.25
Nickel (Ni), % 90.1 to 93.3
0
Nitrogen (N), % 0
0 to 0.030
Oxygen (O), % 0
0 to 0.15
Phosphorus (P), % 0 to 0.020
0
Selenium (Se), % 0 to 0.0050
0
Silicon (Si), % 4.0 to 5.0
0
Sulfur (S), % 0 to 0.020
0
Titanium (Ti), % 0 to 0.050
92.6 to 95.5
Vanadium (V), % 0
2.0 to 3.0
Zirconium (Zr), % 0 to 0.050
0
Residuals, % 0 to 0.5
0 to 0.4