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S46910 Stainless Steel vs. Type 3 Niobium

S46910 stainless steel belongs to the iron alloys classification, while Type 3 niobium belongs to the otherwise unclassified metals. 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 S46910 stainless steel and the bottom bar is Type 3 niobium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 270 to 630
110
Elastic (Young's, Tensile) Modulus, GPa 200
100
Elongation at Break, % 2.2 to 11
23
Poisson's Ratio 0.28
0.4
Shear Modulus, GPa 76
38
Tensile Strength: Ultimate (UTS), MPa 680 to 2470
220
Tensile Strength: Yield (Proof), MPa 450 to 2290
140

Thermal Properties

Latent Heat of Fusion, J/g 280
310
Specific Heat Capacity, J/kg-K 470
270
Thermal Expansion, µm/m-K 11
7.3

Otherwise Unclassified Properties

Density, g/cm3 7.9
8.6
Embodied Water, L/kg 140
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 48 to 130
44
Resilience: Unit (Modulus of Resilience), kJ/m3 510 to 4780
93
Stiffness to Weight: Axial, points 14
6.8
Stiffness to Weight: Bending, points 24
18
Strength to Weight: Axial, points 24 to 86
7.2
Strength to Weight: Bending, points 22 to 51
9.5
Thermal Shock Resistance, points 23 to 84
21

Alloy Composition

Aluminum (Al), % 0.15 to 0.5
0
Carbon (C), % 0 to 0.030
0 to 0.010
Chromium (Cr), % 11 to 13
0
Copper (Cu), % 1.5 to 3.5
0
Hafnium (Hf), % 0
0 to 0.020
Hydrogen (H), % 0
0 to 0.0015
Iron (Fe), % 65 to 76
0 to 0.0050
Manganese (Mn), % 0 to 1.0
0
Molybdenum (Mo), % 3.0 to 5.0
0 to 0.010
Nickel (Ni), % 8.0 to 10
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 0.030
0
Silicon (Si), % 0 to 0.7
0 to 0.0050
Sulfur (S), % 0 to 0.015
0
Tantalum (Ta), % 0
0 to 0.1
Titanium (Ti), % 0.5 to 1.2
0 to 0.020
Tungsten (W), % 0
0 to 0.030
Zirconium (Zr), % 0
0.8 to 1.2