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C68100 Brass vs. C68000 Brass

Both C68100 brass and C68000 brass are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. Their average alloy composition is basically identical. There are 27 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is C68100 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, % 29
27
Poisson's Ratio 0.3
0.3
Shear Modulus, GPa 40
40
Tensile Strength: Ultimate (UTS), MPa 380
390
Tensile Strength: Yield (Proof), MPa 140
140

Thermal Properties

Brazing Temperature, °C 910 to 950
880 to 980
Latent Heat of Fusion, J/g 170
170
Maximum Temperature: Mechanical, °C 120
120
Melting Completion (Liquidus), °C 890
880
Melting Onset (Solidus), °C 870
870
Specific Heat Capacity, J/kg-K 390
390
Thermal Conductivity, W/m-K 98
96
Thermal Expansion, µm/m-K 21
21

Otherwise Unclassified Properties

Base Metal Price, % relative 23
23
Density, g/cm3 7.9
8.0
Embodied Carbon, kg CO2/kg material 2.8
2.8
Embodied Energy, MJ/kg 47
48
Embodied Water, L/kg 330
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 86
82
Resilience: Unit (Modulus of Resilience), kJ/m3 94
95
Stiffness to Weight: Axial, points 7.3
7.3
Stiffness to Weight: Bending, points 20
20
Strength to Weight: Axial, points 13
14
Strength to Weight: Bending, points 15
15
Thermal Diffusivity, mm2/s 32
31
Thermal Shock Resistance, points 13
13

Alloy Composition

Aluminum (Al), % 0 to 0.010
0 to 0.010
Copper (Cu), % 56 to 60
56 to 60
Iron (Fe), % 0.25 to 1.3
0.25 to 1.3
Lead (Pb), % 0 to 0.050
0 to 0.050
Manganese (Mn), % 0.010 to 0.5
0.010 to 0.5
Nickel (Ni), % 0
0.2 to 0.8
Silicon (Si), % 0.040 to 0.15
0.040 to 0.15
Tin (Sn), % 0.75 to 1.1
0.75 to 1.1
Zinc (Zn), % 36.4 to 43
35.6 to 42.8
Residuals, % 0
0 to 0.5