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C27400 Brass vs. C85400 Brass

Both C27400 brass and C85400 brass are copper alloys. They have a moderately high 91% of their average alloy composition in common. There are 24 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is C27400 brass and the bottom bar is C85400 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
100
Poisson's Ratio 0.31
0.32
Shear Modulus, GPa 40
40
Tensile Strength: Ultimate (UTS), MPa 370 to 650
220

Thermal Properties

Latent Heat of Fusion, J/g 170
180
Maximum Temperature: Mechanical, °C 120
130
Melting Completion (Liquidus), °C 920
940
Melting Onset (Solidus), °C 870
940
Specific Heat Capacity, J/kg-K 390
380
Thermal Conductivity, W/m-K 120
89
Thermal Expansion, µm/m-K 21
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 28
20
Electrical Conductivity: Equal Weight (Specific), % IACS 31
22

Otherwise Unclassified Properties

Base Metal Price, % relative 23
25
Density, g/cm3 8.0
8.3
Embodied Carbon, kg CO2/kg material 2.7
2.8
Embodied Energy, MJ/kg 45
46
Embodied Water, L/kg 320
330

Common Calculations

Stiffness to Weight: Axial, points 7.2
7.0
Stiffness to Weight: Bending, points 20
19
Strength to Weight: Axial, points 13 to 23
7.5
Strength to Weight: Bending, points 14 to 21
9.9
Thermal Diffusivity, mm2/s 37
28
Thermal Shock Resistance, points 12 to 22
7.6

Alloy Composition

Aluminum (Al), % 0
0 to 0.35
Copper (Cu), % 61 to 64
65 to 70
Iron (Fe), % 0 to 0.1
0 to 0.7
Lead (Pb), % 0 to 0.050
1.5 to 3.8
Nickel (Ni), % 0
0 to 1.0
Silicon (Si), % 0
0 to 0.050
Tin (Sn), % 0
0.5 to 1.5
Zinc (Zn), % 35.6 to 39
24 to 32
Residuals, % 0
0 to 1.1