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AWS BAg-9 vs. C99400 Brass

AWS BAg-9 belongs to the otherwise unclassified metals classification, while C99400 brass belongs to the copper alloys. They have a modest 23% 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 (9, in this case) are not shown.

For each property being compared, the top bar is AWS BAg-9 and the bottom bar is C99400 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 82
120
Poisson's Ratio 0.35
0.34
Shear Modulus, GPa 31
44
Tensile Strength: Ultimate (UTS), MPa 140
460 to 550

Thermal Properties

Latent Heat of Fusion, J/g 130
230
Melting Completion (Liquidus), °C 720
1070
Melting Onset (Solidus), °C 670
1020
Specific Heat Capacity, J/kg-K 290
400
Thermal Expansion, µm/m-K 20
17

Otherwise Unclassified Properties

Density, g/cm3 9.6
8.7
Embodied Energy, MJ/kg 980
45

Common Calculations

Stiffness to Weight: Axial, points 4.8
7.5
Stiffness to Weight: Bending, points 15
19
Strength to Weight: Axial, points 4.1
15 to 17
Strength to Weight: Bending, points 6.3
15 to 17
Thermal Shock Resistance, points 6.0
16 to 19

Alloy Composition


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Aluminum (Al), % 0
0.5 to 2.0
Copper (Cu), % 19 to 21
83.5 to 96.5
Iron (Fe), % 0
1.0 to 3.0
Lead (Pb), % 0
0 to 0.25
Manganese (Mn), % 0
0 to 0.5
Nickel (Ni), % 0
1.0 to 3.5
Silicon (Si), % 0
0.5 to 2.0
Silver (Ag), % 64 to 66
0
Zinc (Zn), % 13 to 17
0.5 to 5.0
Residuals, % 0 to 0.15
0 to 0.3