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C94800 Bronze vs. C85200 Brass

Both C94800 bronze and C85200 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 C94800 bronze and the bottom bar is C85200 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
110
Elongation at Break, % 22
28
Poisson's Ratio 0.34
0.32
Shear Modulus, GPa 43
40
Tensile Strength: Ultimate (UTS), MPa 310
270
Tensile Strength: Yield (Proof), MPa 160
95

Thermal Properties

Latent Heat of Fusion, J/g 200
180
Maximum Temperature: Mechanical, °C 190
140
Melting Completion (Liquidus), °C 1030
940
Melting Onset (Solidus), °C 900
930
Specific Heat Capacity, J/kg-K 380
380
Thermal Conductivity, W/m-K 39
84
Thermal Expansion, µm/m-K 17
20

Electrical Properties

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

Otherwise Unclassified Properties

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

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 58
59
Resilience: Unit (Modulus of Resilience), kJ/m3 110
42
Stiffness to Weight: Axial, points 7.2
7.0
Stiffness to Weight: Bending, points 18
19
Strength to Weight: Axial, points 9.8
8.9
Strength to Weight: Bending, points 12
11
Thermal Diffusivity, mm2/s 12
27
Thermal Shock Resistance, points 11
9.3

Alloy Composition

Aluminum (Al), % 0 to 0.0050
0 to 0.0050
Antimony (Sb), % 0 to 0.15
0 to 0.2
Copper (Cu), % 84 to 89
70 to 74
Iron (Fe), % 0 to 0.25
0 to 0.6
Lead (Pb), % 0.3 to 1.0
1.5 to 3.8
Manganese (Mn), % 0 to 0.2
0
Nickel (Ni), % 4.5 to 6.0
0 to 1.0
Phosphorus (P), % 0 to 0.050
0 to 0.020
Silicon (Si), % 0 to 0.0050
0 to 0.050
Sulfur (S), % 0 to 0.050
0 to 0.050
Tin (Sn), % 4.5 to 6.0
0.7 to 2.0
Zinc (Zn), % 1.0 to 2.5
20 to 27
Residuals, % 0
0 to 0.9