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C69710 Brass vs. C43500 Brass

Both C69710 brass and C43500 brass are copper alloys. They have a very high 96% of their average alloy composition in common.

For each property being compared, the top bar is C69710 brass and the bottom bar is C43500 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
110
Elongation at Break, % 25
8.5 to 46
Poisson's Ratio 0.32
0.32
Shear Modulus, GPa 41
42
Shear Strength, MPa 300
220 to 310
Tensile Strength: Ultimate (UTS), MPa 470
320 to 530
Tensile Strength: Yield (Proof), MPa 230
120 to 480

Thermal Properties

Latent Heat of Fusion, J/g 240
190
Maximum Temperature: Mechanical, °C 160
160
Melting Completion (Liquidus), °C 930
1000
Melting Onset (Solidus), °C 880
970
Specific Heat Capacity, J/kg-K 400
380
Thermal Conductivity, W/m-K 40
120
Thermal Expansion, µm/m-K 19
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.0
28
Electrical Conductivity: Equal Weight (Specific), % IACS 8.7
30

Otherwise Unclassified Properties

Base Metal Price, % relative 26
28
Density, g/cm3 8.3
8.5
Embodied Carbon, kg CO2/kg material 2.7
2.7
Embodied Energy, MJ/kg 44
45
Embodied Water, L/kg 310
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 99
44 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 250
65 to 1040
Stiffness to Weight: Axial, points 7.3
7.2
Stiffness to Weight: Bending, points 19
19
Strength to Weight: Axial, points 16
10 to 17
Strength to Weight: Bending, points 16
12 to 17
Thermal Diffusivity, mm2/s 12
37
Thermal Shock Resistance, points 16
11 to 18

Alloy Composition

Arsenic (As), % 0.030 to 0.060
0
Copper (Cu), % 75 to 80
79 to 83
Iron (Fe), % 0 to 0.2
0 to 0.050
Lead (Pb), % 0.5 to 1.5
0 to 0.090
Manganese (Mn), % 0 to 0.4
0
Silicon (Si), % 2.5 to 3.5
0
Tin (Sn), % 0
0.6 to 1.2
Zinc (Zn), % 13.8 to 22
15.4 to 20.4
Residuals, % 0
0 to 0.3