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C84200 Brass vs. C87900 Brass

Both C84200 brass and C87900 brass are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 80% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is C84200 brass and the bottom bar is C87900 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
110
Elongation at Break, % 15
25
Poisson's Ratio 0.33
0.31
Shear Modulus, GPa 40
41
Tensile Strength: Ultimate (UTS), MPa 250
480
Tensile Strength: Yield (Proof), MPa 120
240

Thermal Properties

Latent Heat of Fusion, J/g 180
190
Maximum Temperature: Mechanical, °C 150
130
Melting Completion (Liquidus), °C 990
930
Melting Onset (Solidus), °C 840
900
Specific Heat Capacity, J/kg-K 370
390
Thermal Conductivity, W/m-K 72
120
Thermal Expansion, µm/m-K 19
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 16
15
Electrical Conductivity: Equal Weight (Specific), % IACS 17
17

Otherwise Unclassified Properties

Base Metal Price, % relative 30
24
Density, g/cm3 8.5
8.1
Embodied Carbon, kg CO2/kg material 3.1
2.7
Embodied Energy, MJ/kg 51
46
Embodied Water, L/kg 350
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 31
100
Resilience: Unit (Modulus of Resilience), kJ/m3 72
270
Stiffness to Weight: Axial, points 6.9
7.3
Stiffness to Weight: Bending, points 18
20
Strength to Weight: Axial, points 8.2
17
Strength to Weight: Bending, points 10
17
Thermal Diffusivity, mm2/s 23
37
Thermal Shock Resistance, points 9.1
16

Alloy Composition

Aluminum (Al), % 0 to 0.0050
0 to 0.15
Antimony (Sb), % 0 to 0.25
0 to 0.050
Arsenic (As), % 0
0 to 0.050
Copper (Cu), % 78 to 82
63 to 69.2
Iron (Fe), % 0 to 0.4
0 to 0.4
Lead (Pb), % 2.0 to 3.0
0 to 0.25
Manganese (Mn), % 0
0 to 0.15
Nickel (Ni), % 0 to 0.8
0 to 0.5
Phosphorus (P), % 0 to 1.5
0 to 0.010
Silicon (Si), % 0 to 0.0050
0.8 to 1.2
Sulfur (S), % 0 to 0.080
0 to 0.050
Tin (Sn), % 4.0 to 6.0
0 to 0.25
Zinc (Zn), % 10 to 16
30 to 36
Residuals, % 0 to 0.7
0