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C84800 Brass vs. C84200 Brass

Both C84800 brass and C84200 brass are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have a very high 96% of their average alloy composition in common.

For each property being compared, the top bar is C84800 brass and the bottom bar is C84200 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
110
Elongation at Break, % 18
15
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 39
40
Tensile Strength: Ultimate (UTS), MPa 230
250
Tensile Strength: Yield (Proof), MPa 100
120

Thermal Properties

Latent Heat of Fusion, J/g 180
180
Maximum Temperature: Mechanical, °C 150
150
Melting Completion (Liquidus), °C 950
990
Melting Onset (Solidus), °C 830
840
Specific Heat Capacity, J/kg-K 370
370
Thermal Conductivity, W/m-K 72
72
Thermal Expansion, µm/m-K 19
19

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 27
30
Density, g/cm3 8.6
8.5
Embodied Carbon, kg CO2/kg material 2.8
3.1
Embodied Energy, MJ/kg 46
51
Embodied Water, L/kg 340
350

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 34
31
Resilience: Unit (Modulus of Resilience), kJ/m3 53
72
Stiffness to Weight: Axial, points 6.6
6.9
Stiffness to Weight: Bending, points 18
18
Strength to Weight: Axial, points 7.3
8.2
Strength to Weight: Bending, points 9.6
10
Thermal Diffusivity, mm2/s 23
23
Thermal Shock Resistance, points 8.2
9.1

Alloy Composition


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Aluminum (Al), % 0 to 0.0050
0 to 0.0050
Antimony (Sb), % 0 to 0.25
0 to 0.25
Copper (Cu), % 75 to 77
78 to 82
Iron (Fe), % 0 to 0.4
0 to 0.4
Lead (Pb), % 5.5 to 7.0
2.0 to 3.0
Nickel (Ni), % 0 to 1.0
0 to 0.8
Phosphorus (P), % 0 to 1.5
0 to 1.5
Silicon (Si), % 0 to 0.0050
0 to 0.0050
Sulfur (S), % 0 to 0.080
0 to 0.080
Tin (Sn), % 2.0 to 3.0
4.0 to 6.0
Zinc (Zn), % 13 to 17
10 to 16
Residuals, % 0 to 0.7
0 to 0.7