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ASTM B685 Alloy vs. SAE-AISI 1547 Steel

ASTM B685 alloy belongs to the otherwise unclassified metals classification, while SAE-AISI 1547 steel belongs to the iron alloys. There are 17 material properties with values for both materials. Properties with values for just one material (15, in this case) are not shown.

For each property being compared, the top bar is ASTM B685 alloy and the bottom bar is SAE-AISI 1547 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
190
Poisson's Ratio 0.37
0.29
Shear Modulus, GPa 43
73
Tensile Strength: Ultimate (UTS), MPa 660 to 1060
740 to 800

Thermal Properties

Latent Heat of Fusion, J/g 180
250
Melting Completion (Liquidus), °C 1230
1460
Melting Onset (Solidus), °C 1200
1420
Specific Heat Capacity, J/kg-K 300
470
Thermal Expansion, µm/m-K 14
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 5.0
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 4.1
8.2

Otherwise Unclassified Properties

Density, g/cm3 11
7.8

Common Calculations

Stiffness to Weight: Axial, points 6.1
13
Stiffness to Weight: Bending, points 15
24
Strength to Weight: Axial, points 17 to 27
26 to 28
Strength to Weight: Bending, points 16 to 21
23 to 24
Thermal Shock Resistance, points 28 to 46
23 to 25

Alloy Composition

Aluminum (Al), % 0 to 0.0050
0
Cadmium (Cd), % 0 to 0.050
0
Carbon (C), % 0
0.43 to 0.51
Copper (Cu), % 39.5 to 40.5
0
Iron (Fe), % 0 to 0.050
97.8 to 98.2
Lead (Pb), % 0 to 0.030
0
Manganese (Mn), % 0
1.4 to 1.7
Palladium (Pd), % 59 to 60.5
0
Phosphorus (P), % 0
0 to 0.040
Silver (Ag), % 0 to 0.1
0
Sulfur (S), % 0
0 to 0.050
Zinc (Zn), % 0 to 0.060
0
Residuals, % 0 to 0.2
0

Comparable Variants