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S30601 Stainless Steel vs. Type 3 Niobium

S30601 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 S30601 stainless steel and the bottom bar is Type 3 niobium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
110
Elastic (Young's, Tensile) Modulus, GPa 190
100
Elongation at Break, % 37
23
Poisson's Ratio 0.28
0.4
Shear Modulus, GPa 75
38
Tensile Strength: Ultimate (UTS), MPa 660
220
Tensile Strength: Yield (Proof), MPa 300
140

Thermal Properties

Latent Heat of Fusion, J/g 370
310
Specific Heat Capacity, J/kg-K 500
270
Thermal Expansion, µm/m-K 15
7.3

Otherwise Unclassified Properties

Density, g/cm3 7.6
8.6
Embodied Water, L/kg 150
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 200
44
Resilience: Unit (Modulus of Resilience), kJ/m3 230
93
Stiffness to Weight: Axial, points 14
6.8
Stiffness to Weight: Bending, points 25
18
Strength to Weight: Axial, points 24
7.2
Strength to Weight: Bending, points 22
9.5
Thermal Shock Resistance, points 16
21

Alloy Composition

Carbon (C), % 0 to 0.015
0 to 0.010
Chromium (Cr), % 17 to 18
0
Copper (Cu), % 0 to 0.35
0
Hafnium (Hf), % 0
0 to 0.020
Hydrogen (H), % 0
0 to 0.0015
Iron (Fe), % 56.9 to 60.5
0 to 0.0050
Manganese (Mn), % 0.5 to 0.8
0
Molybdenum (Mo), % 0 to 0.2
0 to 0.010
Nickel (Ni), % 17 to 18
0 to 0.0050
Niobium (Nb), % 0
98.6 to 99.2
Nitrogen (N), % 0 to 0.050
0 to 0.010
Oxygen (O), % 0
0 to 0.015
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 5.0 to 5.6
0 to 0.0050
Sulfur (S), % 0 to 0.013
0
Tantalum (Ta), % 0
0 to 0.1
Titanium (Ti), % 0
0 to 0.020
Tungsten (W), % 0
0 to 0.030
Zirconium (Zr), % 0
0.8 to 1.2