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C68300 Brass vs. ASTM B522 Class II

C68300 brass belongs to the copper alloys classification, while ASTM B522 class II belongs to the otherwise unclassified metals. There are 20 material properties with values for both materials. Properties with values for just one material (11, 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 C68300 brass and the bottom bar is ASTM B522 class II.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
96
Elongation at Break, % 15
1.1 to 28
Poisson's Ratio 0.31
0.41
Shear Modulus, GPa 40
34
Shear Strength, MPa 260
180 to 280
Tensile Strength: Ultimate (UTS), MPa 430
280 to 490
Tensile Strength: Yield (Proof), MPa 260
120 to 210

Thermal Properties

Latent Heat of Fusion, J/g 180
77
Melting Completion (Liquidus), °C 900
1030
Melting Onset (Solidus), °C 890
1030
Specific Heat Capacity, J/kg-K 390
160
Thermal Expansion, µm/m-K 20
15

Otherwise Unclassified Properties

Density, g/cm3 8.0
17

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 56
4.4 to 63
Resilience: Unit (Modulus of Resilience), kJ/m3 330
75 to 230
Stiffness to Weight: Axial, points 7.3
3.1
Stiffness to Weight: Bending, points 20
8.9
Strength to Weight: Axial, points 15
4.4 to 7.8
Strength to Weight: Bending, points 16
5.5 to 8.0
Thermal Shock Resistance, points 14
13 to 24

Alloy Composition

Antimony (Sb), % 0.3 to 1.0
0
Cadmium (Cd), % 0 to 0.010
0
Copper (Cu), % 59 to 63
0
Gold (Au), % 0
68.5 to 69.5
Lead (Pb), % 0 to 0.090
0
Platinum (Pt), % 0
5.5 to 6.5
Silicon (Si), % 0.3 to 1.0
0
Silver (Ag), % 0
24.5 to 25.5
Sulfur (S), % 0
0 to 0.010
Tin (Sn), % 0.050 to 0.2
0
Zinc (Zn), % 34.2 to 40.4
0
Residuals, % 0
0 to 0.26