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C34200 Brass vs. C68000 Brass

Both C34200 brass and C68000 brass are copper alloys. They have a moderately high 93% of their average alloy composition in common. There are 26 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is C34200 brass and the bottom bar is C68000 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
100
Elongation at Break, % 3.0 to 17
27
Poisson's Ratio 0.31
0.3
Shear Modulus, GPa 40
40
Tensile Strength: Ultimate (UTS), MPa 370 to 650
390
Tensile Strength: Yield (Proof), MPa 150 to 420
140

Thermal Properties

Latent Heat of Fusion, J/g 170
170
Maximum Temperature: Mechanical, °C 120
120
Melting Completion (Liquidus), °C 910
880
Melting Onset (Solidus), °C 890
870
Specific Heat Capacity, J/kg-K 380
390
Thermal Conductivity, W/m-K 120
96
Thermal Expansion, µm/m-K 21
21

Otherwise Unclassified Properties

Base Metal Price, % relative 24
23
Density, g/cm3 8.2
8.0
Embodied Carbon, kg CO2/kg material 2.6
2.8
Embodied Energy, MJ/kg 45
48
Embodied Water, L/kg 320
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 9.0 to 98
82
Resilience: Unit (Modulus of Resilience), kJ/m3 110 to 870
95
Stiffness to Weight: Axial, points 7.1
7.3
Stiffness to Weight: Bending, points 19
20
Strength to Weight: Axial, points 13 to 22
14
Strength to Weight: Bending, points 14 to 20
15
Thermal Diffusivity, mm2/s 37
31
Thermal Shock Resistance, points 12 to 22
13

Alloy Composition

Aluminum (Al), % 0
0 to 0.010
Copper (Cu), % 62 to 65
56 to 60
Iron (Fe), % 0 to 0.1
0.25 to 1.3
Lead (Pb), % 1.5 to 2.5
0 to 0.050
Manganese (Mn), % 0
0.010 to 0.5
Nickel (Ni), % 0
0.2 to 0.8
Silicon (Si), % 0
0.040 to 0.15
Tin (Sn), % 0
0.75 to 1.1
Zinc (Zn), % 32 to 36.5
35.6 to 42.8
Residuals, % 0
0 to 0.5