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70Ag-30Ni Alloy vs. R30008 Cobalt

70Ag-30Ni alloy belongs to the otherwise unclassified metals classification, while R30008 cobalt belongs to the cobalt alloys. There are 15 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is 70Ag-30Ni alloy and the bottom bar is R30008 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
210
Poisson's Ratio 0.35
0.29
Shear Modulus, GPa 39
83
Tensile Strength: Ultimate (UTS), MPa 320 to 530
950 to 1700

Thermal Properties

Latent Heat of Fusion, J/g 170
320
Melting Completion (Liquidus), °C 960
1400
Melting Onset (Solidus), °C 960
1330
Specific Heat Capacity, J/kg-K 300
450
Thermal Expansion, µm/m-K 17
13

Otherwise Unclassified Properties

Density, g/cm3 10
8.4

Common Calculations

Stiffness to Weight: Axial, points 5.8
14
Stiffness to Weight: Bending, points 16
24
Strength to Weight: Axial, points 8.8 to 15
31 to 56
Strength to Weight: Bending, points 10 to 15
25 to 37
Thermal Shock Resistance, points 13 to 21
25 to 44

Alloy Composition

Boron (B), % 0
0 to 0.0010
Carbon (C), % 0
0 to 0.15
Chromium (Cr), % 0
18.5 to 21.5
Cobalt (Co), % 0
39 to 42
Iron (Fe), % 0
7.6 to 20
Manganese (Mn), % 0
1.0 to 2.0
Molybdenum (Mo), % 0
6.5 to 7.5
Nickel (Ni), % 28.8 to 31
15 to 18
Phosphorus (P), % 0
0 to 0.015
Silicon (Si), % 0
0 to 1.2
Silver (Ag), % 69 to 71
0
Sulfur (S), % 0
0 to 0.015
Residuals, % 0 to 0.2
0

Comparable Variants