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EN 1.3558 Steel vs. R05200 Tantalum

EN 1.3558 steel belongs to the iron alloys classification, while R05200 tantalum belongs to the otherwise unclassified metals. There are 16 material properties with values for both materials. Properties with values for just one material (14, in this case) are not shown.

For each property being compared, the top bar is EN 1.3558 steel and the bottom bar is R05200 tantalum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
190
Poisson's Ratio 0.29
0.34
Shear Modulus, GPa 80
69
Tensile Strength: Ultimate (UTS), MPa 770
210 to 540

Thermal Properties

Latent Heat of Fusion, J/g 240
140
Specific Heat Capacity, J/kg-K 410
140
Thermal Conductivity, W/m-K 20
59
Thermal Expansion, µm/m-K 12
6.5

Otherwise Unclassified Properties

Density, g/cm3 9.3
17
Embodied Water, L/kg 90
650

Common Calculations

Stiffness to Weight: Axial, points 12
6.2
Stiffness to Weight: Bending, points 21
11
Strength to Weight: Axial, points 23
3.6 to 9.0
Strength to Weight: Bending, points 20
4.8 to 8.8
Thermal Diffusivity, mm2/s 5.3
25
Thermal Shock Resistance, points 22
13 to 32

Alloy Composition

Carbon (C), % 0.7 to 0.8
0 to 0.010
Chromium (Cr), % 3.9 to 4.3
0
Copper (Cu), % 0 to 0.3
0
Hydrogen (H), % 0
0 to 0.0015
Iron (Fe), % 73.7 to 77.6
0 to 0.010
Manganese (Mn), % 0 to 0.4
0
Molybdenum (Mo), % 0 to 0.6
0 to 0.020
Nickel (Ni), % 0
0 to 0.010
Niobium (Nb), % 0
0 to 0.1
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
99.8 to 100
Titanium (Ti), % 0
0 to 0.010
Tungsten (W), % 17.5 to 19
0 to 0.050
Vanadium (V), % 1.0 to 1.3
0