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C27200 Brass vs. C69430 Brass

Both C27200 brass and C69430 brass are copper alloys. They have 78% of their average alloy composition in common. There are 29 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 C27200 brass and the bottom bar is C69430 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
110
Elongation at Break, % 10 to 50
17
Poisson's Ratio 0.31
0.33
Shear Modulus, GPa 40
42
Shear Strength, MPa 230 to 320
350
Tensile Strength: Ultimate (UTS), MPa 370 to 590
570
Tensile Strength: Yield (Proof), MPa 150 to 410
280

Thermal Properties

Latent Heat of Fusion, J/g 170
260
Maximum Temperature: Mechanical, °C 130
170
Melting Completion (Liquidus), °C 920
920
Melting Onset (Solidus), °C 870
820
Specific Heat Capacity, J/kg-K 390
410
Thermal Conductivity, W/m-K 120
26
Thermal Expansion, µm/m-K 20
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 28
6.2
Electrical Conductivity: Equal Weight (Specific), % IACS 31
6.7

Otherwise Unclassified Properties

Base Metal Price, % relative 24
27
Density, g/cm3 8.1
8.3
Embodied Carbon, kg CO2/kg material 2.7
2.7
Embodied Energy, MJ/kg 45
44
Embodied Water, L/kg 320
300

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 30 to 270
80
Resilience: Unit (Modulus of Resilience), kJ/m3 110 to 810
340
Stiffness to Weight: Axial, points 7.2
7.4
Stiffness to Weight: Bending, points 19
19
Strength to Weight: Axial, points 13 to 20
19
Strength to Weight: Bending, points 14 to 19
18
Thermal Diffusivity, mm2/s 37
7.7
Thermal Shock Resistance, points 12 to 20
20

Alloy Composition

Arsenic (As), % 0
0.030 to 0.060
Copper (Cu), % 62 to 65
80 to 83
Iron (Fe), % 0 to 0.070
0 to 0.2
Lead (Pb), % 0 to 0.070
0 to 0.3
Silicon (Si), % 0
3.5 to 4.5
Zinc (Zn), % 34.6 to 38
11.4 to 16.5
Residuals, % 0
0 to 0.5