EN 1.7701 Steel vs. Type 3 Niobium
EN 1.7701 steel belongs to the iron alloys classification, while Type 3 niobium belongs to the otherwise unclassified metals. There are 17 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 1.7701 steel and the bottom bar is Type 3 niobium.
Metric UnitsUS Customary Units
Mechanical Properties
Brinell Hardness | 200 to 480 | |
110 |
Elastic (Young's, Tensile) Modulus, GPa | 190 | |
100 |
Poisson's Ratio | 0.29 | |
0.4 |
Shear Modulus, GPa | 73 | |
38 |
Tensile Strength: Ultimate (UTS), MPa | 670 to 2010 | |
220 |
Thermal Properties
Latent Heat of Fusion, J/g | 250 | |
310 |
Specific Heat Capacity, J/kg-K | 470 | |
270 |
Thermal Conductivity, W/m-K | 44 | |
42 |
Thermal Expansion, µm/m-K | 13 | |
7.3 |
Otherwise Unclassified Properties
Density, g/cm3 | 7.8 | |
8.6 |
Embodied Water, L/kg | 52 | |
160 |
Common Calculations
Stiffness to Weight: Axial, points | 13 | |
6.8 |
Stiffness to Weight: Bending, points | 24 | |
18 |
Strength to Weight: Axial, points | 24 to 71 | |
7.2 |
Strength to Weight: Bending, points | 22 to 45 | |
9.5 |
Thermal Diffusivity, mm2/s | 12 | |
18 |
Thermal Shock Resistance, points | 20 to 59 | |
21 |
Alloy Composition
Carbon (C), % | 0.48 to 0.56 | |
0 to 0.010 |
Chromium (Cr), % | 0.9 to 1.2 | |
0 |
Hafnium (Hf), % | 0 | |
0 to 0.020 |
Hydrogen (H), % | 0 | |
0 to 0.0015 |
Iron (Fe), % | 96.2 to 97.7 | |
0 to 0.0050 |
Manganese (Mn), % | 0.7 to 1.1 | |
0 |
Molybdenum (Mo), % | 0.15 to 0.3 | |
0 to 0.010 |
Nickel (Ni), % | 0 | |
0 to 0.0050 |
Niobium (Nb), % | 0 | |
98.6 to 99.2 |
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 0.025 | |
0 |
Tantalum (Ta), % | 0 | |
0 to 0.1 |
Titanium (Ti), % | 0 | |
0 to 0.020 |
Tungsten (W), % | 0 | |
0 to 0.030 |
Vanadium (V), % | 0.1 to 0.2 | |
0 |
Zirconium (Zr), % | 0 | |
0.8 to 1.2 |