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EN 1.3975 Stainless Steel vs. Type 1 Niobium

EN 1.3975 stainless steel belongs to the iron alloys classification, while Type 1 niobium belongs to the otherwise unclassified metals. There are 19 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 EN 1.3975 stainless steel and the bottom bar is Type 1 niobium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
79
Elastic (Young's, Tensile) Modulus, GPa 190
110
Elongation at Break, % 27
29
Poisson's Ratio 0.28
0.4
Shear Modulus, GPa 76
38
Tensile Strength: Ultimate (UTS), MPa 660
140
Tensile Strength: Yield (Proof), MPa 320
82

Thermal Properties

Latent Heat of Fusion, J/g 340
320
Specific Heat Capacity, J/kg-K 500
270
Thermal Expansion, µm/m-K 16
7.3

Otherwise Unclassified Properties

Density, g/cm3 7.5
8.6
Embodied Water, L/kg 150
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 150
35
Resilience: Unit (Modulus of Resilience), kJ/m3 270
32
Stiffness to Weight: Axial, points 14
6.8
Stiffness to Weight: Bending, points 26
18
Strength to Weight: Axial, points 24
4.6
Strength to Weight: Bending, points 22
7.1
Thermal Shock Resistance, points 15
13

Alloy Composition

Carbon (C), % 0 to 0.050
0 to 0.010
Chromium (Cr), % 16 to 18
0
Hafnium (Hf), % 0
0 to 0.020
Hydrogen (H), % 0
0 to 0.0015
Iron (Fe), % 58.2 to 65.4
0 to 0.0050
Manganese (Mn), % 7.0 to 9.0
0
Molybdenum (Mo), % 0 to 1.0
0 to 0.010
Nickel (Ni), % 8.0 to 9.0
0 to 0.0050
Niobium (Nb), % 0
99.7 to 100
Nitrogen (N), % 0.080 to 0.18
0 to 0.010
Oxygen (O), % 0
0 to 0.015
Phosphorus (P), % 0 to 0.045
0
Silicon (Si), % 3.5 to 4.5
0 to 0.0050
Sulfur (S), % 0 to 0.030
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 to 0.020