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AWS BNi-7 vs. Grade 27 Titanium

AWS BNi-7 belongs to the nickel alloys classification, while grade 27 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-7 and the bottom bar is grade 27 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 170
110
Poisson's Ratio 0.3
0.32
Shear Modulus, GPa 67
41
Tensile Strength: Ultimate (UTS), MPa 550
270

Thermal Properties

Latent Heat of Fusion, J/g 280
420
Melting Completion (Liquidus), °C 890
1660
Melting Onset (Solidus), °C 890
1610
Specific Heat Capacity, J/kg-K 490
540
Thermal Expansion, µm/m-K 11
8.7

Otherwise Unclassified Properties

Base Metal Price, % relative 55
37
Density, g/cm3 8.0
4.5
Embodied Carbon, kg CO2/kg material 8.8
33
Embodied Energy, MJ/kg 120
530
Embodied Water, L/kg 240
320

Common Calculations

Stiffness to Weight: Axial, points 12
13
Stiffness to Weight: Bending, points 23
35
Strength to Weight: Axial, points 19
17
Strength to Weight: Bending, points 19
21
Thermal Shock Resistance, points 21
21

Alloy Composition

Aluminum (Al), % 0 to 0.050
0
Boron (B), % 0 to 0.010
0
Carbon (C), % 0 to 0.060
0 to 0.080
Chromium (Cr), % 13 to 15
0
Cobalt (Co), % 0 to 0.1
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 0 to 0.2
0 to 0.2
Manganese (Mn), % 0 to 0.040
0
Nickel (Ni), % 73.3 to 77.3
0
Nitrogen (N), % 0
0 to 0.030
Oxygen (O), % 0
0 to 0.18
Phosphorus (P), % 9.7 to 10.5
0
Ruthenium (Ru), % 0
0.080 to 0.14
Selenium (Se), % 0 to 0.0050
0
Silicon (Si), % 0 to 0.1
0
Sulfur (S), % 0 to 0.020
0
Titanium (Ti), % 0 to 0.050
99 to 99.92
Zirconium (Zr), % 0 to 0.050
0
Residuals, % 0
0 to 0.4