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C85200 Brass vs. C94700 Bronze

Both C85200 brass and C94700 bronze are copper alloys. They have 76% of their average alloy composition in common.

For each property being compared, the top bar is C85200 brass and the bottom bar is C94700 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
110
Elongation at Break, % 28
7.9 to 32
Poisson's Ratio 0.32
0.34
Shear Modulus, GPa 40
43
Tensile Strength: Ultimate (UTS), MPa 270
350 to 590
Tensile Strength: Yield (Proof), MPa 95
160 to 400

Thermal Properties

Latent Heat of Fusion, J/g 180
200
Maximum Temperature: Mechanical, °C 140
190
Melting Completion (Liquidus), °C 940
1030
Melting Onset (Solidus), °C 930
900
Specific Heat Capacity, J/kg-K 380
380
Thermal Conductivity, W/m-K 84
54
Thermal Expansion, µm/m-K 20
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 18
12
Electrical Conductivity: Equal Weight (Specific), % IACS 19
12

Otherwise Unclassified Properties

Base Metal Price, % relative 26
34
Density, g/cm3 8.4
8.8
Embodied Carbon, kg CO2/kg material 2.8
3.5
Embodied Energy, MJ/kg 46
56
Embodied Water, L/kg 330
350

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 59
41 to 89
Resilience: Unit (Modulus of Resilience), kJ/m3 42
110 to 700
Stiffness to Weight: Axial, points 7.0
7.3
Stiffness to Weight: Bending, points 19
18
Strength to Weight: Axial, points 8.9
11 to 19
Strength to Weight: Bending, points 11
13 to 18
Thermal Diffusivity, mm2/s 27
16
Thermal Shock Resistance, points 9.3
12 to 21

Alloy Composition


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Aluminum (Al), % 0 to 0.0050
0 to 0.0050
Antimony (Sb), % 0 to 0.2
0 to 0.15
Copper (Cu), % 70 to 74
85 to 90
Iron (Fe), % 0 to 0.6
0 to 0.25
Lead (Pb), % 1.5 to 3.8
0 to 0.1
Manganese (Mn), % 0
0 to 0.2
Nickel (Ni), % 0 to 1.0
4.5 to 6.0
Phosphorus (P), % 0 to 0.020
0 to 0.050
Silicon (Si), % 0 to 0.050
0 to 0.0050
Sulfur (S), % 0 to 0.050
0 to 0.050
Tin (Sn), % 0.7 to 2.0
4.5 to 6.0
Zinc (Zn), % 20 to 27
1.0 to 2.5
Residuals, % 0 to 0.9
0 to 1.3