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C86200 Bronze vs. C84200 Brass

Both C86200 bronze and C84200 brass are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 77% of their average alloy composition in common.

For each property being compared, the top bar is C86200 bronze and the bottom bar is C84200 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
110
Elongation at Break, % 21
15
Poisson's Ratio 0.32
0.33
Shear Modulus, GPa 42
40
Tensile Strength: Ultimate (UTS), MPa 710
250
Tensile Strength: Yield (Proof), MPa 350
120

Thermal Properties

Latent Heat of Fusion, J/g 190
180
Maximum Temperature: Mechanical, °C 160
150
Melting Completion (Liquidus), °C 940
990
Melting Onset (Solidus), °C 900
840
Specific Heat Capacity, J/kg-K 410
370
Thermal Conductivity, W/m-K 35
72
Thermal Expansion, µm/m-K 20
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.0
16
Electrical Conductivity: Equal Weight (Specific), % IACS 9.0
17

Otherwise Unclassified Properties

Base Metal Price, % relative 23
30
Density, g/cm3 8.0
8.5
Embodied Carbon, kg CO2/kg material 2.9
3.1
Embodied Energy, MJ/kg 49
51
Embodied Water, L/kg 340
350

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
31
Resilience: Unit (Modulus of Resilience), kJ/m3 540
72
Stiffness to Weight: Axial, points 7.8
6.9
Stiffness to Weight: Bending, points 20
18
Strength to Weight: Axial, points 25
8.2
Strength to Weight: Bending, points 22
10
Thermal Diffusivity, mm2/s 11
23
Thermal Shock Resistance, points 23
9.1

Alloy Composition

Aluminum (Al), % 3.0 to 4.9
0 to 0.0050
Antimony (Sb), % 0
0 to 0.25
Copper (Cu), % 60 to 66
78 to 82
Iron (Fe), % 2.0 to 4.0
0 to 0.4
Lead (Pb), % 0 to 0.2
2.0 to 3.0
Manganese (Mn), % 2.5 to 5.0
0
Nickel (Ni), % 0 to 1.0
0 to 0.8
Phosphorus (P), % 0
0 to 1.5
Silicon (Si), % 0
0 to 0.0050
Sulfur (S), % 0
0 to 0.080
Tin (Sn), % 0 to 0.2
4.0 to 6.0
Zinc (Zn), % 22 to 28
10 to 16
Residuals, % 0
0 to 0.7