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Type 3 Niobium vs. SAE-AISI M36 Steel

Type 3 niobium belongs to the otherwise unclassified metals classification, while SAE-AISI M36 steel belongs to the iron alloys. There are 16 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 3 niobium and the bottom bar is SAE-AISI M36 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
200
Poisson's Ratio 0.4
0.29
Shear Modulus, GPa 38
78
Tensile Strength: Ultimate (UTS), MPa 220
810 to 2190

Thermal Properties

Latent Heat of Fusion, J/g 310
260
Specific Heat Capacity, J/kg-K 270
440
Thermal Conductivity, W/m-K 42
19
Thermal Expansion, µm/m-K 7.3
12

Otherwise Unclassified Properties

Density, g/cm3 8.6
8.4
Embodied Water, L/kg 160
140

Common Calculations

Stiffness to Weight: Axial, points 6.8
13
Stiffness to Weight: Bending, points 18
23
Strength to Weight: Axial, points 7.2
27 to 72
Strength to Weight: Bending, points 9.5
23 to 44
Thermal Diffusivity, mm2/s 18
5.1
Thermal Shock Resistance, points 21
25 to 68

Alloy Composition

Carbon (C), % 0 to 0.010
0.8 to 0.9
Chromium (Cr), % 0
3.8 to 4.5
Cobalt (Co), % 0
7.8 to 8.8
Copper (Cu), % 0
0 to 0.25
Hafnium (Hf), % 0 to 0.020
0
Hydrogen (H), % 0 to 0.0015
0
Iron (Fe), % 0 to 0.0050
70.1 to 75.5
Manganese (Mn), % 0
0.15 to 0.4
Molybdenum (Mo), % 0 to 0.010
4.6 to 5.5
Nickel (Ni), % 0 to 0.0050
0 to 0.3
Niobium (Nb), % 98.6 to 99.2
0
Nitrogen (N), % 0 to 0.010
0
Oxygen (O), % 0 to 0.015
0
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0 to 0.0050
0.2 to 0.45
Sulfur (S), % 0
0 to 0.030
Tantalum (Ta), % 0 to 0.1
0
Titanium (Ti), % 0 to 0.020
0
Tungsten (W), % 0 to 0.030
5.5 to 6.5
Vanadium (V), % 0
1.8 to 2.3
Zirconium (Zr), % 0.8 to 1.2
0