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EN 1.3551 Steel vs. Type 1 Niobium

EN 1.3551 steel belongs to the iron alloys classification, while Type 1 niobium belongs to the otherwise unclassified metals. There are 17 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 1.3551 steel and the bottom bar is Type 1 niobium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 220
79
Elastic (Young's, Tensile) Modulus, GPa 190
110
Poisson's Ratio 0.29
0.4
Shear Modulus, GPa 75
38
Tensile Strength: Ultimate (UTS), MPa 720
140

Thermal Properties

Latent Heat of Fusion, J/g 260
320
Specific Heat Capacity, J/kg-K 460
270
Thermal Conductivity, W/m-K 36
52
Thermal Expansion, µm/m-K 13
7.3

Otherwise Unclassified Properties

Density, g/cm3 7.9
8.6
Embodied Water, L/kg 82
160

Common Calculations

Stiffness to Weight: Axial, points 14
6.8
Stiffness to Weight: Bending, points 24
18
Strength to Weight: Axial, points 26
4.6
Strength to Weight: Bending, points 23
7.1
Thermal Diffusivity, mm2/s 9.8
23
Thermal Shock Resistance, points 21
13

Alloy Composition

Carbon (C), % 0.77 to 0.85
0 to 0.010
Chromium (Cr), % 3.9 to 4.3
0
Copper (Cu), % 0 to 0.3
0
Hafnium (Hf), % 0
0 to 0.020
Hydrogen (H), % 0
0 to 0.0015
Iron (Fe), % 88.8 to 91.1
0 to 0.0050
Manganese (Mn), % 0.15 to 0.35
0
Molybdenum (Mo), % 4.0 to 4.5
0 to 0.010
Nickel (Ni), % 0
0 to 0.0050
Niobium (Nb), % 0
99.7 to 100
Nitrogen (N), % 0
0 to 0.010
Oxygen (O), % 0
0 to 0.015
Phosphorus (P), % 0 to 0.025
0
Silicon (Si), % 0 to 0.4
0 to 0.0050
Sulfur (S), % 0 to 0.015
0
Tantalum (Ta), % 0
0 to 0.1
Titanium (Ti), % 0
0 to 0.020
Tungsten (W), % 0 to 0.25
0 to 0.030
Vanadium (V), % 0.9 to 1.1
0
Zirconium (Zr), % 0
0 to 0.020