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C85700 Brass vs. C84500 Brass

Both C85700 brass and C84500 brass are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 76% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is C85700 brass and the bottom bar is C84500 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
100
Elongation at Break, % 17
28
Poisson's Ratio 0.31
0.34
Shear Modulus, GPa 40
39
Tensile Strength: Ultimate (UTS), MPa 310
240
Tensile Strength: Yield (Proof), MPa 110
97

Thermal Properties

Latent Heat of Fusion, J/g 170
180
Maximum Temperature: Mechanical, °C 120
150
Melting Completion (Liquidus), °C 940
980
Melting Onset (Solidus), °C 910
840
Specific Heat Capacity, J/kg-K 380
360
Thermal Conductivity, W/m-K 84
72
Thermal Expansion, µm/m-K 21
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 22
16
Electrical Conductivity: Equal Weight (Specific), % IACS 25
17

Otherwise Unclassified Properties

Base Metal Price, % relative 24
28
Density, g/cm3 8.0
8.7
Embodied Carbon, kg CO2/kg material 2.8
2.9
Embodied Energy, MJ/kg 47
47
Embodied Water, L/kg 330
340

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 41
54
Resilience: Unit (Modulus of Resilience), kJ/m3 59
45
Stiffness to Weight: Axial, points 7.2
6.6
Stiffness to Weight: Bending, points 20
18
Strength to Weight: Axial, points 11
7.7
Strength to Weight: Bending, points 13
9.8
Thermal Diffusivity, mm2/s 27
23
Thermal Shock Resistance, points 10
8.6

Alloy Composition


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Aluminum (Al), % 0 to 0.8
0 to 0.0050
Antimony (Sb), % 0
0 to 0.25
Copper (Cu), % 58 to 64
77 to 79
Iron (Fe), % 0 to 0.7
0 to 0.4
Lead (Pb), % 0.8 to 1.5
6.0 to 7.5
Nickel (Ni), % 0 to 1.0
0 to 1.0
Phosphorus (P), % 0
0 to 0.020
Silicon (Si), % 0 to 0.050
0 to 0.0050
Sulfur (S), % 0
0 to 0.080
Tin (Sn), % 0.5 to 1.5
2.0 to 4.0
Zinc (Zn), % 32 to 40
10 to 14
Residuals, % 0 to 1.3
0 to 0.7