MakeItFrom.com
Menu (ESC)

C68000 Brass vs. C95820 Bronze

Both C68000 brass and C95820 bronze are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 60% of their average alloy composition in common. There are 26 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is C68000 brass and the bottom bar is C95820 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
120
Elongation at Break, % 27
15
Poisson's Ratio 0.3
0.34
Shear Modulus, GPa 40
44
Tensile Strength: Ultimate (UTS), MPa 390
730
Tensile Strength: Yield (Proof), MPa 140
310

Thermal Properties

Latent Heat of Fusion, J/g 170
230
Maximum Temperature: Mechanical, °C 120
230
Melting Completion (Liquidus), °C 880
1080
Melting Onset (Solidus), °C 870
1020
Specific Heat Capacity, J/kg-K 390
440
Thermal Conductivity, W/m-K 96
38
Thermal Expansion, µm/m-K 21
17

Otherwise Unclassified Properties

Base Metal Price, % relative 23
29
Density, g/cm3 8.0
8.3
Embodied Carbon, kg CO2/kg material 2.8
3.5
Embodied Energy, MJ/kg 48
56
Embodied Water, L/kg 330
380

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 82
86
Resilience: Unit (Modulus of Resilience), kJ/m3 95
400
Stiffness to Weight: Axial, points 7.3
8.0
Stiffness to Weight: Bending, points 20
20
Strength to Weight: Axial, points 14
24
Strength to Weight: Bending, points 15
22
Thermal Diffusivity, mm2/s 31
11
Thermal Shock Resistance, points 13
25

Alloy Composition

Aluminum (Al), % 0 to 0.010
9.0 to 10
Copper (Cu), % 56 to 60
77.5 to 82.5
Iron (Fe), % 0.25 to 1.3
4.0 to 5.0
Lead (Pb), % 0 to 0.050
0 to 0.020
Manganese (Mn), % 0.010 to 0.5
0 to 1.5
Nickel (Ni), % 0.2 to 0.8
4.5 to 5.8
Silicon (Si), % 0.040 to 0.15
0 to 0.1
Tin (Sn), % 0.75 to 1.1
0 to 0.020
Zinc (Zn), % 35.6 to 42.8
0 to 0.2
Residuals, % 0
0 to 0.8