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ACI-ASTM CE30 Steel vs. Type 3 Niobium

ACI-ASTM CE30 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 ACI-ASTM CE30 steel and the bottom bar is Type 3 niobium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
110
Elastic (Young's, Tensile) Modulus, GPa 200
100
Elongation at Break, % 11
23
Poisson's Ratio 0.27
0.4
Shear Modulus, GPa 79
38
Tensile Strength: Ultimate (UTS), MPa 630
220
Tensile Strength: Yield (Proof), MPa 310
140

Thermal Properties

Latent Heat of Fusion, J/g 310
310
Specific Heat Capacity, J/kg-K 490
270
Thermal Conductivity, W/m-K 14
42
Thermal Expansion, µm/m-K 17
7.3

Otherwise Unclassified Properties

Density, g/cm3 7.7
8.6
Embodied Water, L/kg 180
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 59
44
Resilience: Unit (Modulus of Resilience), kJ/m3 240
93
Stiffness to Weight: Axial, points 15
6.8
Stiffness to Weight: Bending, points 25
18
Strength to Weight: Axial, points 23
7.2
Strength to Weight: Bending, points 21
9.5
Thermal Diffusivity, mm2/s 3.6
18
Thermal Shock Resistance, points 13
21

Alloy Composition

Carbon (C), % 0 to 0.3
0 to 0.010
Chromium (Cr), % 26 to 30
0
Hafnium (Hf), % 0
0 to 0.020
Hydrogen (H), % 0
0 to 0.0015
Iron (Fe), % 55.1 to 66
0 to 0.0050
Manganese (Mn), % 0 to 1.5
0
Molybdenum (Mo), % 0
0 to 0.010
Nickel (Ni), % 8.0 to 11
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 to 2.0
0 to 0.0050
Sulfur (S), % 0 to 0.040
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