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C94700 Bronze vs. ASTM B477 Au-Ni-Ag

C94700 bronze belongs to the copper alloys classification, while ASTM B477 Au-Ni-Ag belongs to the otherwise unclassified metals. There are 18 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.

For each property being compared, the top bar is C94700 bronze and the bottom bar is ASTM B477 Au-Ni-Ag.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
95
Elongation at Break, % 7.9 to 32
5.5 to 11
Poisson's Ratio 0.34
0.41
Shear Modulus, GPa 43
34
Tensile Strength: Ultimate (UTS), MPa 350 to 590
310 to 550

Thermal Properties

Latent Heat of Fusion, J/g 200
80
Melting Completion (Liquidus), °C 1030
1010
Melting Onset (Solidus), °C 900
930
Specific Heat Capacity, J/kg-K 380
160
Thermal Expansion, µm/m-K 17
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 12
14
Electrical Conductivity: Equal Weight (Specific), % IACS 12
7.5

Otherwise Unclassified Properties

Density, g/cm3 8.8
17

Common Calculations

Stiffness to Weight: Axial, points 7.3
3.1
Stiffness to Weight: Bending, points 18
8.9
Strength to Weight: Axial, points 11 to 19
5.0 to 9.0
Strength to Weight: Bending, points 13 to 18
6.0 to 8.8
Thermal Shock Resistance, points 12 to 21
16 to 28

Alloy Composition

Aluminum (Al), % 0 to 0.0050
0
Antimony (Sb), % 0 to 0.15
0
Copper (Cu), % 85 to 90
0
Gold (Au), % 0
74.2 to 75.8
Iron (Fe), % 0 to 0.25
0
Lead (Pb), % 0 to 0.1
0
Manganese (Mn), % 0 to 0.2
0
Nickel (Ni), % 4.5 to 6.0
2.6 to 3.4
Phosphorus (P), % 0 to 0.050
0
Silicon (Si), % 0 to 0.0050
0
Silver (Ag), % 0
21.4 to 22.6
Sulfur (S), % 0 to 0.050
0
Tin (Sn), % 4.5 to 6.0
0
Zinc (Zn), % 1.0 to 2.5
0
Residuals, % 0
0 to 0.3