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ASTM B477 Au-Ni-Ag vs. K94200 Alloy

ASTM B477 Au-Ni-Ag belongs to the otherwise unclassified metals classification, while K94200 alloy belongs to the iron alloys. There are 17 material properties with values for both materials. Properties with values for just one material (9, 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 ASTM B477 Au-Ni-Ag and the bottom bar is K94200 alloy.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 95
140
Elongation at Break, % 5.5 to 11
5.0 to 32
Poisson's Ratio 0.41
0.34
Shear Modulus, GPa 34
54
Shear Strength, MPa 190 to 320
330 to 410
Tensile Strength: Ultimate (UTS), MPa 310 to 550
500 to 710

Thermal Properties

Melting Onset (Solidus), °C 930
1440
Specific Heat Capacity, J/kg-K 160
500
Thermal Expansion, µm/m-K 15
5.0

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 14
2.7
Electrical Conductivity: Equal Weight (Specific), % IACS 7.5
3.0

Otherwise Unclassified Properties

Density, g/cm3 17
8.2

Common Calculations

Stiffness to Weight: Axial, points 3.1
9.8
Stiffness to Weight: Bending, points 8.9
21
Strength to Weight: Axial, points 5.0 to 9.0
17 to 24
Strength to Weight: Bending, points 6.0 to 8.8
17 to 22
Thermal Shock Resistance, points 16 to 28
49 to 70