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C38000 Brass vs. C72700 Copper-nickel

Both C38000 brass and C72700 copper-nickel are copper alloys. They have 58% of their average alloy composition in common. 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 C38000 brass and the bottom bar is C72700 copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
120
Elongation at Break, % 17
4.0 to 36
Poisson's Ratio 0.31
0.34
Shear Modulus, GPa 39
44
Shear Strength, MPa 230
310 to 620
Tensile Strength: Ultimate (UTS), MPa 380
460 to 1070
Tensile Strength: Yield (Proof), MPa 120
580 to 1060

Thermal Properties

Latent Heat of Fusion, J/g 170
210
Maximum Temperature: Mechanical, °C 110
200
Melting Completion (Liquidus), °C 800
1100
Melting Onset (Solidus), °C 760
930
Specific Heat Capacity, J/kg-K 380
380
Thermal Conductivity, W/m-K 110
54
Thermal Expansion, µm/m-K 21
17

Otherwise Unclassified Properties

Base Metal Price, % relative 22
36
Density, g/cm3 8.0
8.8
Embodied Carbon, kg CO2/kg material 2.7
4.0
Embodied Energy, MJ/kg 46
62
Embodied Water, L/kg 330
350

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 50
20 to 380
Resilience: Unit (Modulus of Resilience), kJ/m3 74
1420 to 4770
Stiffness to Weight: Axial, points 7.1
7.4
Stiffness to Weight: Bending, points 19
19
Strength to Weight: Axial, points 13
14 to 34
Strength to Weight: Bending, points 14
15 to 26
Thermal Diffusivity, mm2/s 37
16
Thermal Shock Resistance, points 13
16 to 38

Alloy Composition


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Aluminum (Al), % 0 to 0.5
0
Copper (Cu), % 55 to 60
82.1 to 86
Iron (Fe), % 0 to 0.35
0 to 0.5
Lead (Pb), % 1.5 to 2.5
0 to 0.020
Magnesium (Mg), % 0
0 to 0.15
Manganese (Mn), % 0
0.050 to 0.3
Nickel (Ni), % 0
8.5 to 9.5
Niobium (Nb), % 0
0 to 0.1
Tin (Sn), % 0 to 0.3
5.5 to 6.5
Zinc (Zn), % 35.9 to 43.5
0 to 0.5
Residuals, % 0 to 0.5
0 to 0.3