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C33000 Brass vs. C68000 Brass

Both C33000 brass and C68000 brass are copper alloys. They have a moderately high 91% 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 C33000 brass and the bottom bar is C68000 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
100
Elongation at Break, % 7.0 to 60
27
Poisson's Ratio 0.31
0.3
Shear Modulus, GPa 40
40
Tensile Strength: Ultimate (UTS), MPa 320 to 520
390
Tensile Strength: Yield (Proof), MPa 110 to 450
140

Thermal Properties

Latent Heat of Fusion, J/g 180
170
Maximum Temperature: Mechanical, °C 130
120
Melting Completion (Liquidus), °C 940
880
Melting Onset (Solidus), °C 900
870
Specific Heat Capacity, J/kg-K 390
390
Thermal Conductivity, W/m-K 120
96
Thermal Expansion, µm/m-K 20
21

Otherwise Unclassified Properties

Base Metal Price, % relative 24
23
Density, g/cm3 8.2
8.0
Embodied Carbon, kg CO2/kg material 2.7
2.8
Embodied Energy, MJ/kg 45
48
Embodied Water, L/kg 320
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 35 to 150
82
Resilience: Unit (Modulus of Resilience), kJ/m3 60 to 950
95
Stiffness to Weight: Axial, points 7.2
7.3
Stiffness to Weight: Bending, points 19
20
Strength to Weight: Axial, points 11 to 18
14
Strength to Weight: Bending, points 13 to 18
15
Thermal Diffusivity, mm2/s 37
31
Thermal Shock Resistance, points 11 to 17
13

Alloy Composition

Aluminum (Al), % 0
0 to 0.010
Copper (Cu), % 65 to 68
56 to 60
Iron (Fe), % 0 to 0.070
0.25 to 1.3
Lead (Pb), % 0.25 to 0.7
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), % 30.8 to 34.8
35.6 to 42.8
Residuals, % 0
0 to 0.5