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C34200 Brass vs. C85700 Brass

Both C34200 brass and C85700 brass are copper alloys. They have a very high 97% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is C34200 brass and the bottom bar is C85700 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
100
Elongation at Break, % 3.0 to 17
17
Poisson's Ratio 0.31
0.31
Shear Modulus, GPa 40
40
Tensile Strength: Ultimate (UTS), MPa 370 to 650
310
Tensile Strength: Yield (Proof), MPa 150 to 420
110

Thermal Properties

Latent Heat of Fusion, J/g 170
170
Maximum Temperature: Mechanical, °C 120
120
Melting Completion (Liquidus), °C 910
940
Melting Onset (Solidus), °C 890
910
Specific Heat Capacity, J/kg-K 380
380
Thermal Conductivity, W/m-K 120
84
Thermal Expansion, µm/m-K 21
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 26
22
Electrical Conductivity: Equal Weight (Specific), % IACS 29
25

Otherwise Unclassified Properties

Base Metal Price, % relative 24
24
Density, g/cm3 8.2
8.0
Embodied Carbon, kg CO2/kg material 2.6
2.8
Embodied Energy, MJ/kg 45
47
Embodied Water, L/kg 320
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 9.0 to 98
41
Resilience: Unit (Modulus of Resilience), kJ/m3 110 to 870
59
Stiffness to Weight: Axial, points 7.1
7.2
Stiffness to Weight: Bending, points 19
20
Strength to Weight: Axial, points 13 to 22
11
Strength to Weight: Bending, points 14 to 20
13
Thermal Diffusivity, mm2/s 37
27
Thermal Shock Resistance, points 12 to 22
10

Alloy Composition

Aluminum (Al), % 0
0 to 0.8
Copper (Cu), % 62 to 65
58 to 64
Iron (Fe), % 0 to 0.1
0 to 0.7
Lead (Pb), % 1.5 to 2.5
0.8 to 1.5
Nickel (Ni), % 0
0 to 1.0
Silicon (Si), % 0
0 to 0.050
Tin (Sn), % 0
0.5 to 1.5
Zinc (Zn), % 32 to 36.5
32 to 40
Residuals, % 0
0 to 1.3