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Type 2 Pewter vs. Type 4 Niobium

Both Type 2 pewter and Type 4 niobium are otherwise unclassified metals. There are 15 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is Type 2 pewter and the bottom bar is Type 4 niobium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 13 to 23
120
Elastic (Young's, Tensile) Modulus, GPa 52
110
Poisson's Ratio 0.35
0.4
Shear Modulus, GPa 19
38
Tensile Strength: Ultimate (UTS), MPa 52 to 68
220

Thermal Properties

Latent Heat of Fusion, J/g 69
310
Specific Heat Capacity, J/kg-K 220
270
Thermal Expansion, µm/m-K 21
7.3

Otherwise Unclassified Properties

Density, g/cm3 7.3
8.6
Embodied Water, L/kg 1220
160

Common Calculations

Stiffness to Weight: Axial, points 3.9
6.8
Stiffness to Weight: Bending, points 17
18
Strength to Weight: Axial, points 2.0 to 2.6
7.2
Strength to Weight: Bending, points 4.3 to 5.1
9.5
Thermal Shock Resistance, points 3.4 to 4.4
21

Alloy Composition

Antimony (Sb), % 5.0 to 7.5
0
Arsenic (As), % 0 to 0.050
0
Carbon (C), % 0
0 to 0.010
Copper (Cu), % 1.5 to 3.0
0
Hafnium (Hf), % 0
0 to 0.020
Hydrogen (H), % 0
0 to 0.0015
Iron (Fe), % 0 to 0.015
0 to 0.010
Lead (Pb), % 0 to 0.050
0
Molybdenum (Mo), % 0
0 to 0.050
Nickel (Ni), % 0
0 to 0.0050
Niobium (Nb), % 0
98.1 to 99.2
Nitrogen (N), % 0
0 to 0.010
Oxygen (O), % 0
0 to 0.025
Silicon (Si), % 0
0 to 0.0050
Tantalum (Ta), % 0
0 to 0.5
Tin (Sn), % 90 to 93
0
Titanium (Ti), % 0
0 to 0.020
Tungsten (W), % 0
0 to 0.050
Zinc (Zn), % 0 to 0.0050
0
Zirconium (Zr), % 0
0.8 to 1.2