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SAE-AISI 1552 Steel vs. Type 3 Niobium

SAE-AISI 1552 steel belongs to the iron alloys classification, while Type 3 niobium belongs to the otherwise unclassified metals. There are 21 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 1552 steel and the bottom bar is Type 3 niobium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 220 to 250
110
Elastic (Young's, Tensile) Modulus, GPa 190
100
Elongation at Break, % 11 to 14
23
Poisson's Ratio 0.29
0.4
Shear Modulus, GPa 72
38
Tensile Strength: Ultimate (UTS), MPa 760 to 840
220
Tensile Strength: Yield (Proof), MPa 460 to 650
140

Thermal Properties

Latent Heat of Fusion, J/g 250
310
Specific Heat Capacity, J/kg-K 470
270
Thermal Conductivity, W/m-K 51
42
Thermal Expansion, µm/m-K 11
7.3

Otherwise Unclassified Properties

Density, g/cm3 7.8
8.6
Embodied Water, L/kg 47
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 81 to 98
44
Resilience: Unit (Modulus of Resilience), kJ/m3 560 to 1130
93
Stiffness to Weight: Axial, points 13
6.8
Stiffness to Weight: Bending, points 24
18
Strength to Weight: Axial, points 27 to 30
7.2
Strength to Weight: Bending, points 24 to 25
9.5
Thermal Diffusivity, mm2/s 14
18
Thermal Shock Resistance, points 26 to 29
21

Alloy Composition

Carbon (C), % 0.47 to 0.55
0 to 0.010
Hafnium (Hf), % 0
0 to 0.020
Hydrogen (H), % 0
0 to 0.0015
Iron (Fe), % 97.9 to 98.3
0 to 0.0050
Manganese (Mn), % 1.2 to 1.5
0
Molybdenum (Mo), % 0
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 0.040
0
Silicon (Si), % 0
0 to 0.0050
Sulfur (S), % 0 to 0.050
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
0.8 to 1.2