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AWS ERNiCrMo-2 vs. R30035 Cobalt

AWS ERNiCrMo-2 belongs to the nickel alloys classification, while R30035 cobalt belongs to the cobalt alloys. They have 66% of their average alloy composition in common. There are 23 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is AWS ERNiCrMo-2 and the bottom bar is R30035 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
220 to 230
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 81
84 to 89
Tensile Strength: Ultimate (UTS), MPa 750
900 to 1900

Thermal Properties

Latent Heat of Fusion, J/g 320
320
Melting Completion (Liquidus), °C 1460
1440
Melting Onset (Solidus), °C 1410
1320
Specific Heat Capacity, J/kg-K 450
440
Thermal Conductivity, W/m-K 11
11
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.5
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 1.6
1.8

Otherwise Unclassified Properties

Base Metal Price, % relative 55
100
Density, g/cm3 8.4
8.7
Embodied Carbon, kg CO2/kg material 9.2
10
Embodied Energy, MJ/kg 120
140
Embodied Water, L/kg 270
410

Common Calculations

Stiffness to Weight: Axial, points 14
14 to 15
Stiffness to Weight: Bending, points 23
23 to 24
Strength to Weight: Axial, points 25
29 to 61
Strength to Weight: Bending, points 22
24 to 39
Thermal Diffusivity, mm2/s 2.9
3.0
Thermal Shock Resistance, points 20
23 to 46

Alloy Composition

Boron (B), % 0
0 to 0.015
Carbon (C), % 0.050 to 0.15
0 to 0.025
Chromium (Cr), % 20.5 to 23
19 to 21
Cobalt (Co), % 0.5 to 2.5
29.1 to 39
Copper (Cu), % 0 to 0.5
0
Iron (Fe), % 17 to 20
0 to 1.0
Manganese (Mn), % 0 to 1.0
0 to 0.15
Molybdenum (Mo), % 8.0 to 10
9.0 to 10.5
Nickel (Ni), % 40.3 to 53.8
33 to 37
Phosphorus (P), % 0 to 0.040
0 to 0.015
Silicon (Si), % 0 to 1.0
0 to 0.15
Sulfur (S), % 0 to 0.030
0 to 0.010
Titanium (Ti), % 0
0 to 1.0
Tungsten (W), % 0.2 to 1.0
0
Residuals, % 0 to 0.5
0