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AWS BNi-5a vs. Grade 9 Titanium

AWS BNi-5a 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-5a and the bottom bar is grade 9 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
110
Poisson's Ratio 0.29
0.32
Shear Modulus, GPa 72
40
Tensile Strength: Ultimate (UTS), MPa 480
700 to 960

Thermal Properties

Latent Heat of Fusion, J/g 420
410
Melting Completion (Liquidus), °C 1150
1640
Melting Onset (Solidus), °C 1070
1590
Specific Heat Capacity, J/kg-K 500
550
Thermal Expansion, µm/m-K 12
9.1

Otherwise Unclassified Properties

Base Metal Price, % relative 55
37
Density, g/cm3 7.9
4.5
Embodied Carbon, kg CO2/kg material 9.0
36
Embodied Energy, MJ/kg 130
580
Embodied Water, L/kg 260
150

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
35
Strength to Weight: Axial, points 17
43 to 60
Strength to Weight: Bending, points 17
39 to 48
Thermal Shock Resistance, points 15
52 to 71

Alloy Composition


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Aluminum (Al), % 0 to 0.050
2.5 to 3.5
Boron (B), % 1.0 to 1.5
0
Carbon (C), % 0 to 0.1
0 to 0.080
Chromium (Cr), % 18.5 to 19.5
0
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), % 70.1 to 73.5
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), % 7.0 to 7.5
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