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ASTM B522 Class II vs. C84200 Brass

ASTM B522 class II belongs to the otherwise unclassified metals classification, while C84200 brass belongs to the copper alloys. There are 21 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 ASTM B522 class II and the bottom bar is C84200 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 96
110
Elongation at Break, % 1.1 to 28
15
Poisson's Ratio 0.41
0.33
Shear Modulus, GPa 34
40
Tensile Strength: Ultimate (UTS), MPa 280 to 490
250
Tensile Strength: Yield (Proof), MPa 120 to 210
120

Thermal Properties

Latent Heat of Fusion, J/g 77
180
Melting Completion (Liquidus), °C 1030
990
Melting Onset (Solidus), °C 1030
840
Specific Heat Capacity, J/kg-K 160
370
Thermal Expansion, µm/m-K 15
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
16
Electrical Conductivity: Equal Weight (Specific), % IACS 5.7
17

Otherwise Unclassified Properties

Density, g/cm3 17
8.5

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 4.4 to 63
31
Resilience: Unit (Modulus of Resilience), kJ/m3 75 to 230
72
Stiffness to Weight: Axial, points 3.1
6.9
Stiffness to Weight: Bending, points 8.9
18
Strength to Weight: Axial, points 4.4 to 7.8
8.2
Strength to Weight: Bending, points 5.5 to 8.0
10
Thermal Shock Resistance, points 13 to 24
9.1

Alloy Composition

Aluminum (Al), % 0
0 to 0.0050
Antimony (Sb), % 0
0 to 0.25
Copper (Cu), % 0
78 to 82
Gold (Au), % 68.5 to 69.5
0
Iron (Fe), % 0
0 to 0.4
Lead (Pb), % 0
2.0 to 3.0
Nickel (Ni), % 0
0 to 0.8
Phosphorus (P), % 0
0 to 1.5
Platinum (Pt), % 5.5 to 6.5
0
Silicon (Si), % 0
0 to 0.0050
Silver (Ag), % 24.5 to 25.5
0
Sulfur (S), % 0 to 0.010
0 to 0.080
Tin (Sn), % 0
4.0 to 6.0
Zinc (Zn), % 0
10 to 16
Residuals, % 0
0 to 0.7