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R05400 Tantalum vs. Grade 350 Maraging Steel

R05400 tantalum belongs to the otherwise unclassified metals classification, while grade 350 maraging steel belongs to the iron alloys. There are 17 material properties with values for both materials. Properties with values for just one material (12, 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 grade 350 maraging steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 1.1 to 28
4.1 to 18
Poisson's Ratio 0.34
0.3
Shear Modulus, GPa 69
75
Tensile Strength: Ultimate (UTS), MPa 210 to 540
1140 to 2420
Tensile Strength: Yield (Proof), MPa 140 to 390
830 to 2300

Thermal Properties

Latent Heat of Fusion, J/g 140
270
Specific Heat Capacity, J/kg-K 140
450
Thermal Expansion, µm/m-K 6.5
12

Otherwise Unclassified Properties

Density, g/cm3 17
8.2
Embodied Water, L/kg 650
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.5 to 53
98 to 190
Stiffness to Weight: Axial, points 6.2
13
Stiffness to Weight: Bending, points 11
23
Strength to Weight: Axial, points 3.6 to 9.0
38 to 82
Strength to Weight: Bending, points 4.8 to 8.8
29 to 49
Thermal Shock Resistance, points 13 to 32
35 to 74

Alloy Composition

Aluminum (Al), % 0
0.050 to 0.15
Boron (B), % 0
0 to 0.0030
Calcium (Ca), % 0
0 to 0.050
Carbon (C), % 0 to 0.010
0 to 0.030
Cobalt (Co), % 0
11.5 to 12.5
Hydrogen (H), % 0 to 0.0015
0
Iron (Fe), % 0 to 0.010
61.2 to 64.6
Manganese (Mn), % 0
0 to 0.1
Molybdenum (Mo), % 0 to 0.020
4.6 to 5.2
Nickel (Ni), % 0 to 0.010
18 to 19
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 0.010
Silicon (Si), % 0 to 0.0050
0 to 0.1
Sulfur (S), % 0
0 to 0.010
Tantalum (Ta), % 99.7 to 100
0
Titanium (Ti), % 0 to 0.010
1.3 to 1.6
Tungsten (W), % 0 to 0.050
0
Zirconium (Zr), % 0
0 to 0.020

Comparable Variants