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C19400 Copper vs. C27400 Brass

Both C19400 copper and C27400 brass are copper alloys. They have 63% of their average alloy composition in common. There are 25 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is C19400 copper and the bottom bar is C27400 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
110
Poisson's Ratio 0.34
0.31
Rockwell Superficial 30T Hardness 59 to 78
52 to 78
Shear Modulus, GPa 44
40
Tensile Strength: Ultimate (UTS), MPa 310 to 630
370 to 650

Thermal Properties

Latent Heat of Fusion, J/g 210
170
Maximum Temperature: Mechanical, °C 200
120
Melting Completion (Liquidus), °C 1090
920
Melting Onset (Solidus), °C 1080
870
Specific Heat Capacity, J/kg-K 390
390
Thermal Conductivity, W/m-K 260
120
Thermal Expansion, µm/m-K 17
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 58 to 68
28
Electrical Conductivity: Equal Weight (Specific), % IACS 58 to 69
31

Otherwise Unclassified Properties

Base Metal Price, % relative 30
23
Density, g/cm3 8.9
8.0
Embodied Carbon, kg CO2/kg material 2.6
2.7
Embodied Energy, MJ/kg 40
45
Embodied Water, L/kg 300
320

Common Calculations

Stiffness to Weight: Axial, points 7.3
7.2
Stiffness to Weight: Bending, points 18
20
Strength to Weight: Axial, points 9.7 to 20
13 to 23
Strength to Weight: Bending, points 11 to 18
14 to 21
Thermal Diffusivity, mm2/s 75
37
Thermal Shock Resistance, points 11 to 22
12 to 22

Alloy Composition

Copper (Cu), % 96.8 to 97.8
61 to 64
Iron (Fe), % 2.1 to 2.6
0 to 0.1
Lead (Pb), % 0 to 0.030
0 to 0.050
Phosphorus (P), % 0.015 to 0.15
0
Zinc (Zn), % 0.050 to 0.2
35.6 to 39
Residuals, % 0
0 to 0.3

Comparable Variants