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C43000 Brass vs. C69430 Brass

Both C43000 brass and C69430 brass are copper alloys. They have a moderately high 94% 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 C43000 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, % 3.0 to 55
17
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 42
42
Shear Strength, MPa 230 to 410
350
Tensile Strength: Ultimate (UTS), MPa 320 to 710
570
Tensile Strength: Yield (Proof), MPa 130 to 550
280

Thermal Properties

Latent Heat of Fusion, J/g 190
260
Maximum Temperature: Mechanical, °C 170
170
Melting Completion (Liquidus), °C 1030
920
Melting Onset (Solidus), °C 1000
820
Specific Heat Capacity, J/kg-K 380
410
Thermal Conductivity, W/m-K 120
26
Thermal Expansion, µm/m-K 18
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 27
6.2
Electrical Conductivity: Equal Weight (Specific), % IACS 28
6.7

Otherwise Unclassified Properties

Base Metal Price, % relative 29
27
Density, g/cm3 8.6
8.3
Embodied Carbon, kg CO2/kg material 2.8
2.7
Embodied Energy, MJ/kg 46
44
Embodied Water, L/kg 330
300

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 20 to 150
80
Resilience: Unit (Modulus of Resilience), kJ/m3 82 to 1350
340
Stiffness to Weight: Axial, points 7.1
7.4
Stiffness to Weight: Bending, points 19
19
Strength to Weight: Axial, points 10 to 23
19
Strength to Weight: Bending, points 12 to 20
18
Thermal Diffusivity, mm2/s 36
7.7
Thermal Shock Resistance, points 11 to 25
20

Alloy Composition

Arsenic (As), % 0
0.030 to 0.060
Copper (Cu), % 84 to 87
80 to 83
Iron (Fe), % 0 to 0.050
0 to 0.2
Lead (Pb), % 0 to 0.1
0 to 0.3
Silicon (Si), % 0
3.5 to 4.5
Tin (Sn), % 1.7 to 2.7
0
Zinc (Zn), % 9.7 to 14.3
11.4 to 16.5
Residuals, % 0
0 to 0.5