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C87900 Brass vs. AWS BAg-8a

C87900 brass belongs to the copper alloys classification, while AWS BAg-8a belongs to the otherwise unclassified metals. They have a modest 28% of their average alloy composition in common, which, by itself, doesn't mean much. There are 15 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 C87900 brass and the bottom bar is AWS BAg-8a.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
83
Poisson's Ratio 0.31
0.36
Shear Modulus, GPa 41
31
Tensile Strength: Ultimate (UTS), MPa 480
150

Thermal Properties

Latent Heat of Fusion, J/g 190
140
Melting Completion (Liquidus), °C 930
770
Melting Onset (Solidus), °C 900
770
Specific Heat Capacity, J/kg-K 390
290
Thermal Expansion, µm/m-K 20
19

Otherwise Unclassified Properties

Density, g/cm3 8.1
10

Common Calculations

Stiffness to Weight: Axial, points 7.3
4.6
Stiffness to Weight: Bending, points 20
15
Strength to Weight: Axial, points 17
4.2
Strength to Weight: Bending, points 17
6.3
Thermal Shock Resistance, points 16
6.7

Alloy Composition


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Aluminum (Al), % 0 to 0.15
0
Antimony (Sb), % 0 to 0.050
0
Arsenic (As), % 0 to 0.050
0
Copper (Cu), % 63 to 69.2
26.4 to 28.8
Iron (Fe), % 0 to 0.4
0
Lead (Pb), % 0 to 0.25
0
Lithium (Li), % 0
0.25 to 0.5
Manganese (Mn), % 0 to 0.15
0
Nickel (Ni), % 0 to 0.5
0
Phosphorus (P), % 0 to 0.010
0
Silicon (Si), % 0.8 to 1.2
0
Silver (Ag), % 0
71 to 73
Sulfur (S), % 0 to 0.050
0
Tin (Sn), % 0 to 0.25
0
Zinc (Zn), % 30 to 36
0
Residuals, % 0
0 to 0.15