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C69430 Brass vs. ASTM B522 Class II

C69430 brass belongs to the copper alloys classification, while ASTM B522 class II belongs to the otherwise unclassified metals. There are 22 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.

For each property being compared, the top bar is C69430 brass and the bottom bar is ASTM B522 class II.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
96
Elongation at Break, % 17
1.1 to 28
Poisson's Ratio 0.33
0.41
Shear Modulus, GPa 42
34
Shear Strength, MPa 350
180 to 280
Tensile Strength: Ultimate (UTS), MPa 570
280 to 490
Tensile Strength: Yield (Proof), MPa 280
120 to 210

Thermal Properties

Latent Heat of Fusion, J/g 260
77
Melting Completion (Liquidus), °C 920
1030
Melting Onset (Solidus), °C 820
1030
Specific Heat Capacity, J/kg-K 410
160
Thermal Expansion, µm/m-K 18
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 6.2
11
Electrical Conductivity: Equal Weight (Specific), % IACS 6.7
5.7

Otherwise Unclassified Properties

Density, g/cm3 8.3
17

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 80
4.4 to 63
Resilience: Unit (Modulus of Resilience), kJ/m3 340
75 to 230
Stiffness to Weight: Axial, points 7.4
3.1
Stiffness to Weight: Bending, points 19
8.9
Strength to Weight: Axial, points 19
4.4 to 7.8
Strength to Weight: Bending, points 18
5.5 to 8.0
Thermal Shock Resistance, points 20
13 to 24

Alloy Composition

Arsenic (As), % 0.030 to 0.060
0
Copper (Cu), % 80 to 83
0
Gold (Au), % 0
68.5 to 69.5
Iron (Fe), % 0 to 0.2
0
Lead (Pb), % 0 to 0.3
0
Platinum (Pt), % 0
5.5 to 6.5
Silicon (Si), % 3.5 to 4.5
0
Silver (Ag), % 0
24.5 to 25.5
Sulfur (S), % 0
0 to 0.010
Zinc (Zn), % 11.4 to 16.5
0
Residuals, % 0
0 to 0.26