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ASTM B685 Alloy vs. CC752S Brass

ASTM B685 alloy belongs to the otherwise unclassified metals classification, while CC752S brass belongs to the copper alloys. They have 40% of their average alloy composition in common. There are 17 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 ASTM B685 alloy and the bottom bar is CC752S brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
100
Poisson's Ratio 0.37
0.31
Shear Modulus, GPa 43
40
Tensile Strength: Ultimate (UTS), MPa 660 to 1060
350

Thermal Properties

Latent Heat of Fusion, J/g 180
170
Melting Completion (Liquidus), °C 1230
840
Melting Onset (Solidus), °C 1200
800
Specific Heat Capacity, J/kg-K 300
380
Thermal Expansion, µm/m-K 14
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 5.0
25
Electrical Conductivity: Equal Weight (Specific), % IACS 4.1
28

Otherwise Unclassified Properties

Density, g/cm3 11
8.1

Common Calculations

Stiffness to Weight: Axial, points 6.1
7.1
Stiffness to Weight: Bending, points 15
19
Strength to Weight: Axial, points 17 to 27
12
Strength to Weight: Bending, points 16 to 21
13
Thermal Shock Resistance, points 28 to 46
12

Alloy Composition

Aluminum (Al), % 0 to 0.0050
0.3 to 0.7
Antimony (Sb), % 0
0 to 0.14
Arsenic (As), % 0
0.040 to 0.14
Cadmium (Cd), % 0 to 0.050
0
Copper (Cu), % 39.5 to 40.5
61.5 to 64.5
Iron (Fe), % 0 to 0.050
0 to 0.3
Lead (Pb), % 0 to 0.030
1.5 to 2.2
Manganese (Mn), % 0
0 to 0.1
Nickel (Ni), % 0
0 to 0.2
Palladium (Pd), % 59 to 60.5
0
Silicon (Si), % 0
0 to 0.020
Silver (Ag), % 0 to 0.1
0
Tin (Sn), % 0
0 to 0.3
Zinc (Zn), % 0 to 0.060
31.5 to 36.7
Residuals, % 0 to 0.2
0