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ASTM B477 Au-Ni-Ag vs. S30601 Stainless Steel

ASTM B477 Au-Ni-Ag belongs to the otherwise unclassified metals classification, while S30601 stainless steel belongs to the iron alloys. There are 17 material properties with values for both materials. Properties with values for just one material (16, 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 S30601 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 95
190
Elongation at Break, % 5.5 to 11
37
Poisson's Ratio 0.41
0.28
Shear Modulus, GPa 34
75
Shear Strength, MPa 190 to 320
450
Tensile Strength: Ultimate (UTS), MPa 310 to 550
660

Thermal Properties

Latent Heat of Fusion, J/g 80
370
Melting Completion (Liquidus), °C 1010
1360
Melting Onset (Solidus), °C 930
1310
Specific Heat Capacity, J/kg-K 160
500
Thermal Expansion, µm/m-K 15
15

Otherwise Unclassified Properties

Density, g/cm3 17
7.6

Common Calculations

Stiffness to Weight: Axial, points 3.1
14
Stiffness to Weight: Bending, points 8.9
25
Strength to Weight: Axial, points 5.0 to 9.0
24
Strength to Weight: Bending, points 6.0 to 8.8
22
Thermal Shock Resistance, points 16 to 28
16

Alloy Composition

Carbon (C), % 0
0 to 0.015
Chromium (Cr), % 0
17 to 18
Copper (Cu), % 0
0 to 0.35
Gold (Au), % 74.2 to 75.8
0
Iron (Fe), % 0
56.9 to 60.5
Manganese (Mn), % 0
0.5 to 0.8
Molybdenum (Mo), % 0
0 to 0.2
Nickel (Ni), % 2.6 to 3.4
17 to 18
Nitrogen (N), % 0
0 to 0.050
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0
5.0 to 5.6
Silver (Ag), % 21.4 to 22.6
0
Sulfur (S), % 0
0 to 0.013
Residuals, % 0 to 0.3
0