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AWS BNi-1 vs. Grade 27 Titanium

AWS BNi-1 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-1 and the bottom bar is grade 27 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 180
110
Poisson's Ratio 0.3
0.32
Shear Modulus, GPa 70
41
Tensile Strength: Ultimate (UTS), MPa 450
270

Thermal Properties

Latent Heat of Fusion, J/g 360
420
Melting Completion (Liquidus), °C 1040
1660
Melting Onset (Solidus), °C 980
1610
Specific Heat Capacity, J/kg-K 500
540
Thermal Expansion, µm/m-K 12
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 13
13
Stiffness to Weight: Bending, points 24
35
Strength to Weight: Axial, points 16
17
Strength to Weight: Bending, points 16
21
Thermal Shock Resistance, points 15
21

Alloy Composition

Aluminum (Al), % 0 to 0.050
0
Boron (B), % 2.8 to 3.5
0
Carbon (C), % 0.6 to 0.9
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), % 4.0 to 5.0
0 to 0.2
Nickel (Ni), % 69.8 to 75.7
0
Nitrogen (N), % 0
0 to 0.030
Oxygen (O), % 0
0 to 0.18
Phosphorus (P), % 0 to 0.020
0
Ruthenium (Ru), % 0
0.080 to 0.14
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
99 to 99.92
Zirconium (Zr), % 0 to 0.050
0
Residuals, % 0
0 to 0.4