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C68400 Brass vs. C27200 Brass

Both C68400 brass and C27200 brass are copper alloys. They have a very high 96% of their average alloy composition in common. There are 29 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is C68400 brass and the bottom bar is C27200 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
110
Elongation at Break, % 18
10 to 50
Poisson's Ratio 0.31
0.31
Shear Modulus, GPa 41
40
Shear Strength, MPa 330
230 to 320
Tensile Strength: Ultimate (UTS), MPa 540
370 to 590
Tensile Strength: Yield (Proof), MPa 310
150 to 410

Thermal Properties

Latent Heat of Fusion, J/g 210
170
Maximum Temperature: Mechanical, °C 130
130
Melting Completion (Liquidus), °C 840
920
Melting Onset (Solidus), °C 820
870
Specific Heat Capacity, J/kg-K 400
390
Thermal Conductivity, W/m-K 66
120
Thermal Expansion, µm/m-K 20
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 87
28
Electrical Conductivity: Equal Weight (Specific), % IACS 99
31

Otherwise Unclassified Properties

Base Metal Price, % relative 23
24
Density, g/cm3 7.9
8.1
Embodied Carbon, kg CO2/kg material 2.7
2.7
Embodied Energy, MJ/kg 47
45
Embodied Water, L/kg 320
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 81
30 to 270
Resilience: Unit (Modulus of Resilience), kJ/m3 460
110 to 810
Stiffness to Weight: Axial, points 7.5
7.2
Stiffness to Weight: Bending, points 20
19
Strength to Weight: Axial, points 19
13 to 20
Strength to Weight: Bending, points 19
14 to 19
Thermal Diffusivity, mm2/s 21
37
Thermal Shock Resistance, points 18
12 to 20

Alloy Composition


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Aluminum (Al), % 0 to 0.5
0
Boron (B), % 0.0010 to 0.030
0
Copper (Cu), % 59 to 64
62 to 65
Iron (Fe), % 0 to 1.0
0 to 0.070
Lead (Pb), % 0 to 0.090
0 to 0.070
Manganese (Mn), % 0.2 to 1.5
0
Nickel (Ni), % 0 to 0.5
0
Phosphorus (P), % 0.030 to 0.3
0
Silicon (Si), % 1.5 to 2.5
0
Tin (Sn), % 0 to 0.5
0
Zinc (Zn), % 28.6 to 39.3
34.6 to 38
Residuals, % 0 to 0.5
0 to 0.3