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C95820 Bronze vs. C85200 Brass

Both C95820 bronze and C85200 brass are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 73% of their average alloy composition in common.

For each property being compared, the top bar is C95820 bronze and the bottom bar is C85200 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
110
Elongation at Break, % 15
28
Poisson's Ratio 0.34
0.32
Shear Modulus, GPa 44
40
Tensile Strength: Ultimate (UTS), MPa 730
270
Tensile Strength: Yield (Proof), MPa 310
95

Thermal Properties

Latent Heat of Fusion, J/g 230
180
Maximum Temperature: Mechanical, °C 230
140
Melting Completion (Liquidus), °C 1080
940
Melting Onset (Solidus), °C 1020
930
Specific Heat Capacity, J/kg-K 440
380
Thermal Conductivity, W/m-K 38
84
Thermal Expansion, µm/m-K 17
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.5
18
Electrical Conductivity: Equal Weight (Specific), % IACS 8.2
19

Otherwise Unclassified Properties

Base Metal Price, % relative 29
26
Density, g/cm3 8.3
8.4
Embodied Carbon, kg CO2/kg material 3.5
2.8
Embodied Energy, MJ/kg 56
46
Embodied Water, L/kg 380
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 86
59
Resilience: Unit (Modulus of Resilience), kJ/m3 400
42
Stiffness to Weight: Axial, points 8.0
7.0
Stiffness to Weight: Bending, points 20
19
Strength to Weight: Axial, points 24
8.9
Strength to Weight: Bending, points 22
11
Thermal Diffusivity, mm2/s 11
27
Thermal Shock Resistance, points 25
9.3

Alloy Composition

Aluminum (Al), % 9.0 to 10
0 to 0.0050
Antimony (Sb), % 0
0 to 0.2
Copper (Cu), % 77.5 to 82.5
70 to 74
Iron (Fe), % 4.0 to 5.0
0 to 0.6
Lead (Pb), % 0 to 0.020
1.5 to 3.8
Manganese (Mn), % 0 to 1.5
0
Nickel (Ni), % 4.5 to 5.8
0 to 1.0
Phosphorus (P), % 0
0 to 0.020
Silicon (Si), % 0 to 0.1
0 to 0.050
Sulfur (S), % 0
0 to 0.050
Tin (Sn), % 0 to 0.020
0.7 to 2.0
Zinc (Zn), % 0 to 0.2
20 to 27
Residuals, % 0
0 to 0.9