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C68700 Brass vs. C35300 Brass

Both C68700 brass and C35300 brass are copper alloys. They have 82% of their average alloy composition in common. There are 24 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is C68700 brass and the bottom bar is C35300 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
100
Poisson's Ratio 0.32
0.31
Shear Modulus, GPa 41
39
Tensile Strength: Ultimate (UTS), MPa 390
340 to 650

Thermal Properties

Latent Heat of Fusion, J/g 190
170
Maximum Temperature: Mechanical, °C 160
120
Melting Completion (Liquidus), °C 970
910
Melting Onset (Solidus), °C 930
890
Specific Heat Capacity, J/kg-K 400
380
Thermal Conductivity, W/m-K 100
120
Thermal Expansion, µm/m-K 19
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 23
26
Electrical Conductivity: Equal Weight (Specific), % IACS 25
29

Otherwise Unclassified Properties

Base Metal Price, % relative 26
23
Density, g/cm3 8.3
8.1
Embodied Carbon, kg CO2/kg material 2.8
2.6
Embodied Energy, MJ/kg 46
45
Embodied Water, L/kg 340
320

Common Calculations

Stiffness to Weight: Axial, points 7.3
7.1
Stiffness to Weight: Bending, points 19
19
Strength to Weight: Axial, points 13
12 to 22
Strength to Weight: Bending, points 14
13 to 21
Thermal Diffusivity, mm2/s 30
38
Thermal Shock Resistance, points 13
11 to 22

Alloy Composition

Aluminum (Al), % 1.8 to 2.5
0
Arsenic (As), % 0.020 to 0.1
0
Copper (Cu), % 76 to 79
60 to 63
Iron (Fe), % 0 to 0.060
0 to 0.1
Lead (Pb), % 0 to 0.070
1.5 to 2.5
Zinc (Zn), % 17.8 to 22.2
33.9 to 38.5
Residuals, % 0
0 to 0.5