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C95820 Bronze vs. C97600 Dairy Metal

Both C95820 bronze and C97600 dairy metal are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 71% of their average alloy composition in common.

For each property being compared, the top bar is C95820 bronze and the bottom bar is C97600 dairy metal.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
120
Elongation at Break, % 15
11
Poisson's Ratio 0.34
0.33
Shear Modulus, GPa 44
46
Tensile Strength: Ultimate (UTS), MPa 730
310
Tensile Strength: Yield (Proof), MPa 310
140

Thermal Properties

Latent Heat of Fusion, J/g 230
210
Maximum Temperature: Mechanical, °C 230
210
Melting Completion (Liquidus), °C 1080
1140
Melting Onset (Solidus), °C 1020
1110
Specific Heat Capacity, J/kg-K 440
380
Thermal Conductivity, W/m-K 38
22
Thermal Expansion, µm/m-K 17
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.5
5.0
Electrical Conductivity: Equal Weight (Specific), % IACS 8.2
5.1

Otherwise Unclassified Properties

Base Metal Price, % relative 29
37
Density, g/cm3 8.3
8.8
Embodied Carbon, kg CO2/kg material 3.5
4.6
Embodied Energy, MJ/kg 56
69
Embodied Water, L/kg 380
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 86
29
Resilience: Unit (Modulus of Resilience), kJ/m3 400
85
Stiffness to Weight: Axial, points 8.0
7.7
Stiffness to Weight: Bending, points 20
19
Strength to Weight: Axial, points 24
9.8
Strength to Weight: Bending, points 22
12
Thermal Diffusivity, mm2/s 11
6.5
Thermal Shock Resistance, points 25
11

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
63 to 67
Iron (Fe), % 4.0 to 5.0
0 to 1.5
Lead (Pb), % 0 to 0.020
3.0 to 5.0
Manganese (Mn), % 0 to 1.5
0
Nickel (Ni), % 4.5 to 5.8
19 to 21.5
Phosphorus (P), % 0
0 to 0.050
Silicon (Si), % 0 to 0.1
0 to 0.15
Sulfur (S), % 0
0 to 0.080
Tin (Sn), % 0 to 0.020
3.5 to 4.0
Zinc (Zn), % 0 to 0.2
3.0 to 9.0
Residuals, % 0
0 to 0.3