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C68300 Brass vs. C27200 Brass

Both C68300 brass and C27200 brass are copper alloys. They have a very high 97% of their average alloy composition in common. There are 28 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 C68300 brass and the bottom bar is C27200 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
110
Elongation at Break, % 15
10 to 50
Poisson's Ratio 0.31
0.31
Rockwell B Hardness 60
53 to 86
Shear Modulus, GPa 40
40
Shear Strength, MPa 260
230 to 320
Tensile Strength: Ultimate (UTS), MPa 430
370 to 590
Tensile Strength: Yield (Proof), MPa 260
150 to 410

Thermal Properties

Latent Heat of Fusion, J/g 180
170
Maximum Temperature: Mechanical, °C 120
130
Melting Completion (Liquidus), °C 900
920
Melting Onset (Solidus), °C 890
870
Specific Heat Capacity, J/kg-K 390
390
Thermal Conductivity, W/m-K 120
120
Thermal Expansion, µm/m-K 20
20

Otherwise Unclassified Properties

Base Metal Price, % relative 23
24
Density, g/cm3 8.0
8.1
Embodied Carbon, kg CO2/kg material 2.8
2.7
Embodied Energy, MJ/kg 46
45
Embodied Water, L/kg 340
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 56
30 to 270
Resilience: Unit (Modulus of Resilience), kJ/m3 330
110 to 810
Stiffness to Weight: Axial, points 7.3
7.2
Stiffness to Weight: Bending, points 20
19
Strength to Weight: Axial, points 15
13 to 20
Strength to Weight: Bending, points 16
14 to 19
Thermal Diffusivity, mm2/s 38
37
Thermal Shock Resistance, points 14
12 to 20

Alloy Composition

Antimony (Sb), % 0.3 to 1.0
0
Cadmium (Cd), % 0 to 0.010
0
Copper (Cu), % 59 to 63
62 to 65
Iron (Fe), % 0
0 to 0.070
Lead (Pb), % 0 to 0.090
0 to 0.070
Silicon (Si), % 0.3 to 1.0
0
Tin (Sn), % 0.050 to 0.2
0
Zinc (Zn), % 34.2 to 40.4
34.6 to 38
Residuals, % 0
0 to 0.3