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C32000 Brass vs. C69400 Brass

Both C32000 brass and C69400 brass are copper alloys. They have a moderately high 95% of their average alloy composition in common.

For each property being compared, the top bar is C32000 brass and the bottom bar is C69400 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
110
Elongation at Break, % 6.8 to 29
17
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 41
42
Shear Strength, MPa 180 to 280
350
Tensile Strength: Ultimate (UTS), MPa 270 to 470
570
Tensile Strength: Yield (Proof), MPa 78 to 390
270

Thermal Properties

Latent Heat of Fusion, J/g 190
260
Maximum Temperature: Mechanical, °C 170
170
Melting Completion (Liquidus), °C 1020
920
Melting Onset (Solidus), °C 990
820
Specific Heat Capacity, J/kg-K 380
410
Thermal Conductivity, W/m-K 160
26
Thermal Expansion, µm/m-K 19
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 36
6.2
Electrical Conductivity: Equal Weight (Specific), % IACS 37
6.7

Otherwise Unclassified Properties

Base Metal Price, % relative 28
27
Density, g/cm3 8.7
8.3
Embodied Carbon, kg CO2/kg material 2.6
2.7
Embodied Energy, MJ/kg 42
44
Embodied Water, L/kg 310
300

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 30 to 59
80
Resilience: Unit (Modulus of Resilience), kJ/m3 28 to 680
340
Stiffness to Weight: Axial, points 7.1
7.4
Stiffness to Weight: Bending, points 18
19
Strength to Weight: Axial, points 8.8 to 15
19
Strength to Weight: Bending, points 11 to 16
18
Thermal Diffusivity, mm2/s 47
7.7
Thermal Shock Resistance, points 9.5 to 16
20

Alloy Composition

Copper (Cu), % 83.5 to 86.5
80 to 83
Iron (Fe), % 0 to 0.1
0 to 0.2
Lead (Pb), % 1.5 to 2.2
0 to 0.3
Nickel (Ni), % 0 to 0.25
0
Silicon (Si), % 0
3.5 to 4.5
Zinc (Zn), % 10.6 to 15
11.5 to 16.5
Residuals, % 0
0 to 0.5