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EN 1.8505 Steel vs. Type 4 Niobium

EN 1.8505 steel belongs to the iron alloys classification, while Type 4 niobium belongs to the otherwise unclassified metals. There are 21 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.

For each property being compared, the top bar is EN 1.8505 steel and the bottom bar is Type 4 niobium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 320
120
Elastic (Young's, Tensile) Modulus, GPa 190
110
Elongation at Break, % 13
23
Poisson's Ratio 0.29
0.4
Shear Modulus, GPa 73
38
Tensile Strength: Ultimate (UTS), MPa 1050
220
Tensile Strength: Yield (Proof), MPa 860
140

Thermal Properties

Latent Heat of Fusion, J/g 250
310
Specific Heat Capacity, J/kg-K 480
270
Thermal Conductivity, W/m-K 39
42
Thermal Expansion, µm/m-K 13
7.3

Otherwise Unclassified Properties

Density, g/cm3 7.8
8.6
Embodied Water, L/kg 65
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
44
Resilience: Unit (Modulus of Resilience), kJ/m3 1950
93
Stiffness to Weight: Axial, points 13
6.8
Stiffness to Weight: Bending, points 25
18
Strength to Weight: Axial, points 37
7.2
Strength to Weight: Bending, points 30
9.5
Thermal Diffusivity, mm2/s 11
18
Thermal Shock Resistance, points 31
21

Alloy Composition

Aluminum (Al), % 0.8 to 1.2
0
Carbon (C), % 0.28 to 0.35
0 to 0.010
Chromium (Cr), % 1.5 to 1.8
0
Hafnium (Hf), % 0
0 to 0.020
Hydrogen (H), % 0
0 to 0.0015
Iron (Fe), % 95.4 to 97.1
0 to 0.010
Manganese (Mn), % 0.4 to 0.7
0
Molybdenum (Mo), % 0.2 to 0.4
0 to 0.050
Nickel (Ni), % 0
0 to 0.0050
Niobium (Nb), % 0
98.1 to 99.2
Nitrogen (N), % 0
0 to 0.010
Oxygen (O), % 0
0 to 0.025
Phosphorus (P), % 0 to 0.025
0
Silicon (Si), % 0 to 0.4
0 to 0.0050
Sulfur (S), % 0 to 0.035
0
Tantalum (Ta), % 0
0 to 0.5
Titanium (Ti), % 0
0 to 0.020
Tungsten (W), % 0
0 to 0.050
Zirconium (Zr), % 0
0.8 to 1.2