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AWS BNi-1a vs. Type 3 Niobium

AWS BNi-1a belongs to the nickel alloys classification, while Type 3 niobium belongs to the otherwise unclassified metals. There are 14 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-1a and the bottom bar is Type 3 niobium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 180
100
Poisson's Ratio 0.3
0.4
Shear Modulus, GPa 70
38
Tensile Strength: Ultimate (UTS), MPa 450
220

Thermal Properties

Latent Heat of Fusion, J/g 370
310
Specific Heat Capacity, J/kg-K 500
270
Thermal Expansion, µm/m-K 12
7.3

Otherwise Unclassified Properties

Density, g/cm3 8.0
8.6
Embodied Water, L/kg 240
160

Common Calculations

Stiffness to Weight: Axial, points 13
6.8
Stiffness to Weight: Bending, points 24
18
Strength to Weight: Axial, points 16
7.2
Strength to Weight: Bending, points 16
9.5
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 to 0.060
0 to 0.010
Chromium (Cr), % 13 to 15
0
Cobalt (Co), % 0 to 0.1
0
Hafnium (Hf), % 0
0 to 0.020
Hydrogen (H), % 0
0 to 0.0015
Iron (Fe), % 4.0 to 5.0
0 to 0.0050
Molybdenum (Mo), % 0
0 to 0.010
Nickel (Ni), % 70.6 to 76.3
0 to 0.0050
Niobium (Nb), % 0
98.6 to 99.2
Nitrogen (N), % 0
0 to 0.010
Oxygen (O), % 0
0 to 0.015
Phosphorus (P), % 0 to 0.020
0
Selenium (Se), % 0 to 0.0050
0
Silicon (Si), % 4.0 to 5.0
0 to 0.0050
Sulfur (S), % 0 to 0.020
0
Tantalum (Ta), % 0
0 to 0.1
Titanium (Ti), % 0 to 0.050
0 to 0.020
Tungsten (W), % 0
0 to 0.030
Zirconium (Zr), % 0 to 0.050
0.8 to 1.2
Residuals, % 0 to 0.5
0