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OS050 C26800 Brass vs. OS050 C66700 Brass

Both OS050 C26800 brass and OS050 C66700 brass are copper alloys. Both are furnished in the OS050 (annealed to 0.050mm grain size) temper. They have a moderately high 95% of their average alloy composition in common. There are 30 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 OS050 C26800 brass and the bottom bar is OS050 C66700 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
110
Elongation at Break, % 62
58
Poisson's Ratio 0.31
0.31
Rockwell F Hardness 64
70
Shear Modulus, GPa 40
41
Shear Strength, MPa 230
250
Tensile Strength: Ultimate (UTS), MPa 330
340
Tensile Strength: Yield (Proof), MPa 110
100

Thermal Properties

Latent Heat of Fusion, J/g 180
180
Maximum Temperature: Mechanical, °C 130
140
Melting Completion (Liquidus), °C 930
1090
Melting Onset (Solidus), °C 900
1050
Specific Heat Capacity, J/kg-K 390
390
Thermal Conductivity, W/m-K 120
97
Thermal Expansion, µm/m-K 20
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 27
17
Electrical Conductivity: Equal Weight (Specific), % IACS 30
19

Otherwise Unclassified Properties

Base Metal Price, % relative 24
25
Density, g/cm3 8.1
8.2
Embodied Carbon, kg CO2/kg material 2.7
2.7
Embodied Energy, MJ/kg 45
45
Embodied Water, L/kg 320
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 160
150
Resilience: Unit (Modulus of Resilience), kJ/m3 52
49
Stiffness to Weight: Axial, points 7.2
7.3
Stiffness to Weight: Bending, points 19
19
Strength to Weight: Axial, points 11
11
Strength to Weight: Bending, points 13
13
Thermal Diffusivity, mm2/s 37
30
Thermal Shock Resistance, points 11
11

Alloy Composition

Copper (Cu), % 64 to 68.5
68.5 to 71.5
Iron (Fe), % 0 to 0.050
0 to 0.1
Lead (Pb), % 0 to 0.15
0 to 0.070
Manganese (Mn), % 0
0.8 to 1.5
Zinc (Zn), % 31 to 36
26.3 to 30.7
Residuals, % 0
0 to 0.5