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70Ag-30Ni Alloy vs. ASTM A387 Grade 91 Class 2

70Ag-30Ni alloy belongs to the otherwise unclassified metals classification, while ASTM A387 grade 91 class 2 belongs to the iron alloys. There are 17 material properties with values for both materials. Properties with values for just one material (15, in this case) are not shown.

For each property being compared, the top bar is 70Ag-30Ni alloy and the bottom bar is ASTM A387 grade 91 class 2.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
190
Poisson's Ratio 0.35
0.28
Shear Modulus, GPa 39
75
Tensile Strength: Ultimate (UTS), MPa 320 to 530
670

Thermal Properties

Latent Heat of Fusion, J/g 170
270
Melting Completion (Liquidus), °C 960
1460
Melting Onset (Solidus), °C 960
1420
Specific Heat Capacity, J/kg-K 300
470
Thermal Expansion, µm/m-K 17
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 69
8.9
Electrical Conductivity: Equal Weight (Specific), % IACS 62
10

Otherwise Unclassified Properties

Density, g/cm3 10
7.8

Common Calculations

Stiffness to Weight: Axial, points 5.8
14
Stiffness to Weight: Bending, points 16
25
Strength to Weight: Axial, points 8.8 to 15
24
Strength to Weight: Bending, points 10 to 15
22
Thermal Shock Resistance, points 13 to 21
19

Alloy Composition

Aluminum (Al), % 0
0 to 0.020
Carbon (C), % 0
0.080 to 0.12
Chromium (Cr), % 0
8.0 to 9.5
Iron (Fe), % 0
87.3 to 90.3
Manganese (Mn), % 0
0.3 to 0.6
Molybdenum (Mo), % 0
0.85 to 1.1
Nickel (Ni), % 28.8 to 31
0 to 0.4
Niobium (Nb), % 0
0.060 to 0.1
Nitrogen (N), % 0
0.030 to 0.070
Phosphorus (P), % 0
0 to 0.020
Silicon (Si), % 0
0.2 to 0.5
Silver (Ag), % 69 to 71
0
Sulfur (S), % 0
0 to 0.010
Titanium (Ti), % 0
0 to 0.010
Vanadium (V), % 0
0.18 to 0.25
Zirconium (Zr), % 0
0 to 0.010
Residuals, % 0 to 0.2
0