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EN 1.4594 Stainless Steel vs. Type 2 Niobium

EN 1.4594 stainless steel belongs to the iron alloys classification, while Type 2 niobium belongs to the otherwise unclassified metals. There are 20 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 EN 1.4594 stainless steel and the bottom bar is Type 2 niobium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
110
Elongation at Break, % 11 to 17
29
Poisson's Ratio 0.28
0.4
Shear Modulus, GPa 76
38
Tensile Strength: Ultimate (UTS), MPa 1020 to 1170
140
Tensile Strength: Yield (Proof), MPa 810 to 1140
82

Thermal Properties

Latent Heat of Fusion, J/g 280
320
Specific Heat Capacity, J/kg-K 470
270
Thermal Conductivity, W/m-K 16
52
Thermal Expansion, µm/m-K 11
7.3

Otherwise Unclassified Properties

Density, g/cm3 7.9
8.6
Embodied Water, L/kg 130
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110 to 190
35
Resilience: Unit (Modulus of Resilience), kJ/m3 1660 to 3320
32
Stiffness to Weight: Axial, points 14
6.8
Stiffness to Weight: Bending, points 25
18
Strength to Weight: Axial, points 36 to 41
4.6
Strength to Weight: Bending, points 29 to 31
7.1
Thermal Diffusivity, mm2/s 4.4
23
Thermal Shock Resistance, points 34 to 39
13

Alloy Composition

Carbon (C), % 0 to 0.070
0 to 0.010
Chromium (Cr), % 13 to 15
0
Copper (Cu), % 1.2 to 2.0
0
Hafnium (Hf), % 0
0 to 0.020
Hydrogen (H), % 0
0 to 0.0015
Iron (Fe), % 72.6 to 79.5
0 to 0.010
Manganese (Mn), % 0 to 1.0
0
Molybdenum (Mo), % 1.2 to 2.0
0 to 0.020
Nickel (Ni), % 5.0 to 6.0
0 to 0.0050
Niobium (Nb), % 0.15 to 0.6
99.5 to 100
Nitrogen (N), % 0
0 to 0.010
Oxygen (O), % 0
0 to 0.025
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 0.7
0 to 0.0050
Sulfur (S), % 0 to 0.015
0
Tantalum (Ta), % 0
0 to 0.3
Titanium (Ti), % 0
0 to 0.030
Tungsten (W), % 0
0 to 0.050
Zirconium (Zr), % 0
0 to 0.020