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SAE-AISI 1070 Steel vs. ASTM B541 Gold

SAE-AISI 1070 steel belongs to the iron alloys classification, while ASTM B541 gold belongs to the otherwise unclassified metals. 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 SAE-AISI 1070 steel and the bottom bar is ASTM B541 gold.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
110
Elongation at Break, % 10 to 13
6.0 to 14
Poisson's Ratio 0.29
0.4
Shear Modulus, GPa 72
38
Shear Strength, MPa 380 to 460
410 to 690
Tensile Strength: Ultimate (UTS), MPa 640 to 760
670 to 1180
Tensile Strength: Yield (Proof), MPa 420 to 560
480 to 900

Thermal Properties

Latent Heat of Fusion, J/g 250
90
Melting Completion (Liquidus), °C 1460
1110
Melting Onset (Solidus), °C 1420
930
Specific Heat Capacity, J/kg-K 470
170
Thermal Expansion, µm/m-K 12
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 10
7.7 to 12
Electrical Conductivity: Equal Weight (Specific), % IACS 12
4.0 to 6.2

Otherwise Unclassified Properties

Density, g/cm3 7.8
17

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 59 to 86
65 to 91
Resilience: Unit (Modulus of Resilience), kJ/m3 470 to 850
1090 to 3830
Stiffness to Weight: Axial, points 13
3.4
Stiffness to Weight: Bending, points 24
9.0
Strength to Weight: Axial, points 23 to 27
11 to 19
Strength to Weight: Bending, points 21 to 24
9.8 to 14
Thermal Shock Resistance, points 21 to 25
36 to 63

Alloy Composition

Carbon (C), % 0.65 to 0.75
0
Copper (Cu), % 0
13.5 to 15.5
Gold (Au), % 0
70.5 to 72.5
Iron (Fe), % 98.3 to 98.8
0
Manganese (Mn), % 0.6 to 0.9
0
Phosphorus (P), % 0 to 0.040
0
Platinum (Pt), % 0
8.0 to 9.0
Silver (Ag), % 0
4.0 to 5.0
Sulfur (S), % 0 to 0.050
0
Zinc (Zn), % 0
0.7 to 1.3
Residuals, % 0
0 to 0.4