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ASTM B541 Gold vs. SAE-AISI 1146 Steel

ASTM B541 gold belongs to the otherwise unclassified metals classification, while SAE-AISI 1146 steel belongs to the iron alloys. There are 22 material properties with values for both materials. Properties with values for just one material (11, 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 B541 gold and the bottom bar is SAE-AISI 1146 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
190
Elongation at Break, % 6.0 to 14
13 to 17
Poisson's Ratio 0.4
0.29
Shear Modulus, GPa 38
72
Shear Strength, MPa 410 to 690
410 to 440
Tensile Strength: Ultimate (UTS), MPa 670 to 1180
670 to 730
Tensile Strength: Yield (Proof), MPa 480 to 900
360 to 630

Thermal Properties

Latent Heat of Fusion, J/g 90
250
Melting Completion (Liquidus), °C 1110
1460
Melting Onset (Solidus), °C 930
1420
Specific Heat Capacity, J/kg-K 170
470
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.7 to 12
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 4.0 to 6.2
8.1

Otherwise Unclassified Properties

Density, g/cm3 17
7.8

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 65 to 91
93 to 97
Resilience: Unit (Modulus of Resilience), kJ/m3 1090 to 3830
340 to 1050
Stiffness to Weight: Axial, points 3.4
13
Stiffness to Weight: Bending, points 9.0
24
Strength to Weight: Axial, points 11 to 19
24 to 26
Strength to Weight: Bending, points 9.8 to 14
22 to 23
Thermal Shock Resistance, points 36 to 63
20 to 22

Alloy Composition

Carbon (C), % 0
0.42 to 0.49
Copper (Cu), % 13.5 to 15.5
0
Gold (Au), % 70.5 to 72.5
0
Iron (Fe), % 0
98.3 to 98.8
Manganese (Mn), % 0
0.7 to 1.0
Phosphorus (P), % 0
0 to 0.040
Platinum (Pt), % 8.0 to 9.0
0
Silver (Ag), % 4.0 to 5.0
0
Sulfur (S), % 0
0.080 to 0.13
Zinc (Zn), % 0.7 to 1.3
0
Residuals, % 0 to 0.4
0