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C68700 Brass vs. AWS BAg-9

C68700 brass belongs to the copper alloys classification, while AWS BAg-9 belongs to the otherwise unclassified metals. They have a modest 35% of their average alloy composition in common, which, by itself, doesn't mean much. There are 16 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is C68700 brass and the bottom bar is AWS BAg-9.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
82
Poisson's Ratio 0.32
0.35
Shear Modulus, GPa 41
31
Tensile Strength: Ultimate (UTS), MPa 390
140

Thermal Properties

Latent Heat of Fusion, J/g 190
130
Melting Completion (Liquidus), °C 970
720
Melting Onset (Solidus), °C 930
670
Specific Heat Capacity, J/kg-K 400
290
Thermal Expansion, µm/m-K 19
20

Otherwise Unclassified Properties

Density, g/cm3 8.3
9.6
Embodied Energy, MJ/kg 46
980

Common Calculations

Stiffness to Weight: Axial, points 7.3
4.8
Stiffness to Weight: Bending, points 19
15
Strength to Weight: Axial, points 13
4.1
Strength to Weight: Bending, points 14
6.3
Thermal Shock Resistance, points 13
6.0

Alloy Composition

Aluminum (Al), % 1.8 to 2.5
0
Arsenic (As), % 0.020 to 0.1
0
Copper (Cu), % 76 to 79
19 to 21
Iron (Fe), % 0 to 0.060
0
Lead (Pb), % 0 to 0.070
0
Silver (Ag), % 0
64 to 66
Zinc (Zn), % 17.8 to 22.2
13 to 17
Residuals, % 0
0 to 0.15