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C95820 Bronze vs. C84200 Brass

Both C95820 bronze and C84200 brass are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 81% of their average alloy composition in common.

For each property being compared, the top bar is C95820 bronze and the bottom bar is C84200 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
110
Elongation at Break, % 15
15
Poisson's Ratio 0.34
0.33
Shear Modulus, GPa 44
40
Tensile Strength: Ultimate (UTS), MPa 730
250
Tensile Strength: Yield (Proof), MPa 310
120

Thermal Properties

Latent Heat of Fusion, J/g 230
180
Maximum Temperature: Mechanical, °C 230
150
Melting Completion (Liquidus), °C 1080
990
Melting Onset (Solidus), °C 1020
840
Specific Heat Capacity, J/kg-K 440
370
Thermal Conductivity, W/m-K 38
72
Thermal Expansion, µm/m-K 17
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.5
16
Electrical Conductivity: Equal Weight (Specific), % IACS 8.2
17

Otherwise Unclassified Properties

Base Metal Price, % relative 29
30
Density, g/cm3 8.3
8.5
Embodied Carbon, kg CO2/kg material 3.5
3.1
Embodied Energy, MJ/kg 56
51
Embodied Water, L/kg 380
350

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 86
31
Resilience: Unit (Modulus of Resilience), kJ/m3 400
72
Stiffness to Weight: Axial, points 8.0
6.9
Stiffness to Weight: Bending, points 20
18
Strength to Weight: Axial, points 24
8.2
Strength to Weight: Bending, points 22
10
Thermal Diffusivity, mm2/s 11
23
Thermal Shock Resistance, points 25
9.1

Alloy Composition

Aluminum (Al), % 9.0 to 10
0 to 0.0050
Antimony (Sb), % 0
0 to 0.25
Copper (Cu), % 77.5 to 82.5
78 to 82
Iron (Fe), % 4.0 to 5.0
0 to 0.4
Lead (Pb), % 0 to 0.020
2.0 to 3.0
Manganese (Mn), % 0 to 1.5
0
Nickel (Ni), % 4.5 to 5.8
0 to 0.8
Phosphorus (P), % 0
0 to 1.5
Silicon (Si), % 0 to 0.1
0 to 0.0050
Sulfur (S), % 0
0 to 0.080
Tin (Sn), % 0 to 0.020
4.0 to 6.0
Zinc (Zn), % 0 to 0.2
10 to 16
Residuals, % 0
0 to 0.7