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C35600 Brass vs. C68300 Brass

Both C35600 brass and C68300 brass are copper alloys. They have a very high 97% of their average alloy composition in common. There are 23 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is C35600 brass and the bottom bar is C68300 brass.

UNS C35600 Leaded BrassUNS C68300 Antimony-Silicon Brass
Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
100
Poisson's Ratio 0.31
0.31
Rockwell B Hardness 53 to 91
60
Shear Modulus, GPa 39
40
Tensile Strength: Ultimate (UTS), MPa 340 to 650
430

Thermal Properties

Latent Heat of Fusion, J/g 170
180
Maximum Temperature: Mechanical, °C 120
120
Melting Completion (Liquidus), °C 900
900
Melting Onset (Solidus), °C 890
890
Specific Heat Capacity, J/kg-K 380
390
Thermal Conductivity, W/m-K 120
120
Thermal Expansion, µm/m-K 21
20

Otherwise Unclassified Properties

Base Metal Price, % relative 23
23
Density, g/cm3 8.1
8.0
Embodied Carbon, kg CO2/kg material 2.6
2.8
Embodied Energy, MJ/kg 45
46
Embodied Water, L/kg 320
340

Common Calculations

Stiffness to Weight: Axial, points 7.0
7.3
Stiffness to Weight: Bending, points 19
20
Strength to Weight: Axial, points 11 to 22
15
Strength to Weight: Bending, points 13 to 21
16
Thermal Diffusivity, mm2/s 38
38
Thermal Shock Resistance, points 11 to 22
14

Alloy Composition

Antimony (Sb), % 0
0.3 to 1.0
Cadmium (Cd), % 0
0 to 0.010
Copper (Cu), % 60 to 63
59 to 63
Iron (Fe), % 0 to 0.1
0
Lead (Pb), % 2.0 to 3.0
0 to 0.090
Silicon (Si), % 0
0.3 to 1.0
Tin (Sn), % 0
0.050 to 0.2
Zinc (Zn), % 33.4 to 38
34.2 to 40.4
Residuals, % 0
0 to 0.5