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ASTM B596 Au-Cu vs. EN 1.8872 Steel

ASTM B596 Au-Cu belongs to the otherwise unclassified metals classification, while EN 1.8872 steel belongs to the iron alloys. There are 19 material properties with values for both materials. Properties with values for just one material (13, 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 B596 Au-Cu and the bottom bar is EN 1.8872 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
190
Elongation at Break, % 4.3 to 17
21
Poisson's Ratio 0.41
0.29
Shear Modulus, GPa 36
73
Shear Strength, MPa 280 to 360
380
Tensile Strength: Ultimate (UTS), MPa 450 to 620
610

Thermal Properties

Latent Heat of Fusion, J/g 77
250
Melting Completion (Liquidus), °C 1060
1460
Melting Onset (Solidus), °C 930
1420
Specific Heat Capacity, J/kg-K 150
470
Thermal Expansion, µm/m-K 14
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 14
7.5
Electrical Conductivity: Equal Weight (Specific), % IACS 6.7
8.6

Otherwise Unclassified Properties

Density, g/cm3 18
7.9

Common Calculations

Stiffness to Weight: Axial, points 3.1
13
Stiffness to Weight: Bending, points 8.5
24
Strength to Weight: Axial, points 6.8 to 9.4
22
Strength to Weight: Bending, points 7.1 to 8.8
20
Thermal Shock Resistance, points 22 to 30
18

Alloy Composition

Boron (B), % 0
0 to 0.0050
Carbon (C), % 0
0 to 0.18
Chromium (Cr), % 0
0 to 0.5
Copper (Cu), % 9.0 to 11
0 to 0.3
Gold (Au), % 89 to 91
0
Iron (Fe), % 0
95.1 to 100
Manganese (Mn), % 0
0 to 1.7
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 0
0 to 1.0
Niobium (Nb), % 0
0 to 0.050
Nitrogen (N), % 0
0 to 0.015
Phosphorus (P), % 0
0 to 0.020
Silicon (Si), % 0
0 to 0.5
Sulfur (S), % 0
0 to 0.0080
Titanium (Ti), % 0
0 to 0.030
Vanadium (V), % 0
0 to 0.080
Zirconium (Zr), % 0
0 to 0.050
Residuals, % 0 to 0.4
0