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R05400 Tantalum vs. AWS E316L

R05400 tantalum belongs to the otherwise unclassified metals classification, while AWS E316L belongs to the iron alloys. There are 17 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.

For each property being compared, the top bar is R05400 tantalum and the bottom bar is AWS E316L.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 1.1 to 28
34
Poisson's Ratio 0.34
0.28
Shear Modulus, GPa 69
78
Tensile Strength: Ultimate (UTS), MPa 210 to 540
550

Thermal Properties

Latent Heat of Fusion, J/g 140
290
Specific Heat Capacity, J/kg-K 140
470
Thermal Conductivity, W/m-K 59
15
Thermal Expansion, µm/m-K 6.5
14

Otherwise Unclassified Properties

Density, g/cm3 17
7.9
Embodied Water, L/kg 650
160

Common Calculations

Stiffness to Weight: Axial, points 6.2
14
Stiffness to Weight: Bending, points 11
25
Strength to Weight: Axial, points 3.6 to 9.0
19
Strength to Weight: Bending, points 4.8 to 8.8
19
Thermal Diffusivity, mm2/s 25
4.0
Thermal Shock Resistance, points 13 to 32
14

Alloy Composition

Carbon (C), % 0 to 0.010
0 to 0.040
Chromium (Cr), % 0
17 to 20
Copper (Cu), % 0
0 to 0.75
Hydrogen (H), % 0 to 0.0015
0
Iron (Fe), % 0 to 0.010
58.6 to 69.5
Manganese (Mn), % 0
0.5 to 2.5
Molybdenum (Mo), % 0 to 0.020
2.0 to 3.0
Nickel (Ni), % 0 to 0.010
11 to 14
Niobium (Nb), % 0 to 0.1
0
Nitrogen (N), % 0 to 0.010
0
Oxygen (O), % 0 to 0.030
0
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 0.0050
0 to 1.0
Sulfur (S), % 0
0 to 0.030
Tantalum (Ta), % 99.7 to 100
0
Titanium (Ti), % 0 to 0.010
0
Tungsten (W), % 0 to 0.050
0