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SAE-AISI H22 Steel vs. Type 3 Niobium

SAE-AISI H22 steel belongs to the iron alloys classification, while Type 3 niobium belongs to the otherwise unclassified metals. There are 16 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 SAE-AISI H22 steel and the bottom bar is Type 3 niobium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
100
Poisson's Ratio 0.29
0.4
Shear Modulus, GPa 77
38
Tensile Strength: Ultimate (UTS), MPa 700 to 1920
220

Thermal Properties

Latent Heat of Fusion, J/g 250
310
Specific Heat Capacity, J/kg-K 440
270
Thermal Conductivity, W/m-K 31
42
Thermal Expansion, µm/m-K 12
7.3

Otherwise Unclassified Properties

Density, g/cm3 8.7
8.6
Embodied Water, L/kg 72
160

Common Calculations

Stiffness to Weight: Axial, points 13
6.8
Stiffness to Weight: Bending, points 22
18
Strength to Weight: Axial, points 22 to 61
7.2
Strength to Weight: Bending, points 20 to 39
9.5
Thermal Diffusivity, mm2/s 8.2
18
Thermal Shock Resistance, points 22 to 60
21

Alloy Composition

Carbon (C), % 0.3 to 0.4
0 to 0.010
Chromium (Cr), % 1.8 to 3.8
0
Copper (Cu), % 0 to 0.25
0
Hafnium (Hf), % 0
0 to 0.020
Hydrogen (H), % 0
0 to 0.0015
Iron (Fe), % 82.2 to 87.4
0 to 0.0050
Manganese (Mn), % 0.15 to 0.4
0
Molybdenum (Mo), % 0
0 to 0.010
Nickel (Ni), % 0 to 0.3
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 0.030
0
Silicon (Si), % 0.15 to 0.4
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), % 10 to 11.8
0 to 0.030
Vanadium (V), % 0.25 to 0.5
0
Zirconium (Zr), % 0
0.8 to 1.2