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C66900 Brass vs. C85700 Brass

Both C66900 brass and C85700 brass are copper alloys. They have 86% of their average alloy composition in common. There are 26 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is C66900 brass and the bottom bar is C85700 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
100
Elongation at Break, % 1.1 to 26
17
Poisson's Ratio 0.32
0.31
Shear Modulus, GPa 45
40
Tensile Strength: Ultimate (UTS), MPa 460 to 770
310
Tensile Strength: Yield (Proof), MPa 330 to 760
110

Thermal Properties

Latent Heat of Fusion, J/g 190
170
Maximum Temperature: Mechanical, °C 150
120
Melting Completion (Liquidus), °C 860
940
Melting Onset (Solidus), °C 850
910
Specific Heat Capacity, J/kg-K 400
380
Thermal Expansion, µm/m-K 20
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.4
22
Electrical Conductivity: Equal Weight (Specific), % IACS 3.8
25

Otherwise Unclassified Properties

Base Metal Price, % relative 23
24
Density, g/cm3 8.2
8.0
Embodied Carbon, kg CO2/kg material 2.8
2.8
Embodied Energy, MJ/kg 46
47
Embodied Water, L/kg 310
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 4.6 to 200
41
Resilience: Unit (Modulus of Resilience), kJ/m3 460 to 2450
59
Stiffness to Weight: Axial, points 8.1
7.2
Stiffness to Weight: Bending, points 20
20
Strength to Weight: Axial, points 15 to 26
11
Strength to Weight: Bending, points 16 to 23
13
Thermal Shock Resistance, points 14 to 23
10

Alloy Composition

Aluminum (Al), % 0
0 to 0.8
Copper (Cu), % 62.5 to 64.5
58 to 64
Iron (Fe), % 0 to 0.25
0 to 0.7
Lead (Pb), % 0 to 0.050
0.8 to 1.5
Manganese (Mn), % 11.5 to 12.5
0
Nickel (Ni), % 0
0 to 1.0
Silicon (Si), % 0
0 to 0.050
Tin (Sn), % 0
0.5 to 1.5
Zinc (Zn), % 22.5 to 26
32 to 40
Residuals, % 0
0 to 1.3