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C85400 Brass vs. C85700 Brass

Both C85400 brass and C85700 brass are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have a moderately high 93% 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 C85400 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, % 23
17
Poisson's Ratio 0.32
0.31
Shear Modulus, GPa 40
40
Tensile Strength: Ultimate (UTS), MPa 220
310
Tensile Strength: Yield (Proof), MPa 85
110

Thermal Properties

Latent Heat of Fusion, J/g 180
170
Maximum Temperature: Mechanical, °C 130
120
Melting Completion (Liquidus), °C 940
940
Melting Onset (Solidus), °C 940
910
Specific Heat Capacity, J/kg-K 380
380
Thermal Conductivity, W/m-K 89
84
Thermal Expansion, µm/m-K 20
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 20
22
Electrical Conductivity: Equal Weight (Specific), % IACS 22
25

Otherwise Unclassified Properties

Base Metal Price, % relative 25
24
Density, g/cm3 8.3
8.0
Embodied Carbon, kg CO2/kg material 2.8
2.8
Embodied Energy, MJ/kg 46
47
Embodied Water, L/kg 330
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 40
41
Resilience: Unit (Modulus of Resilience), kJ/m3 35
59
Stiffness to Weight: Axial, points 7.0
7.2
Stiffness to Weight: Bending, points 19
20
Strength to Weight: Axial, points 7.5
11
Strength to Weight: Bending, points 9.9
13
Thermal Diffusivity, mm2/s 28
27
Thermal Shock Resistance, points 7.6
10

Alloy Composition

Aluminum (Al), % 0 to 0.35
0 to 0.8
Copper (Cu), % 65 to 70
58 to 64
Iron (Fe), % 0 to 0.7
0 to 0.7
Lead (Pb), % 1.5 to 3.8
0.8 to 1.5
Nickel (Ni), % 0 to 1.0
0 to 1.0
Silicon (Si), % 0 to 0.050
0 to 0.050
Tin (Sn), % 0.5 to 1.5
0.5 to 1.5
Zinc (Zn), % 24 to 32
32 to 40
Residuals, % 0
0 to 1.3