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C27200 Brass vs. C68400 Brass

Both C27200 brass and C68400 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 C27200 brass and the bottom bar is C68400 brass.

Metric UnitsUS Customary Units

Mechanical Properties

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

Thermal Properties

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

Electrical Properties

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

Otherwise Unclassified Properties

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

Common Calculations

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

Alloy Composition

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