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C38000 Brass vs. C71640 Copper-nickel

Both C38000 brass and C71640 copper-nickel are copper alloys. They have 58% of their average alloy composition in common. There are 24 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is C38000 brass and the bottom bar is C71640 copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
140
Poisson's Ratio 0.31
0.33
Shear Modulus, GPa 39
52
Tensile Strength: Ultimate (UTS), MPa 380
490 to 630
Tensile Strength: Yield (Proof), MPa 120
190 to 460

Thermal Properties

Latent Heat of Fusion, J/g 170
240
Maximum Temperature: Mechanical, °C 110
260
Melting Completion (Liquidus), °C 800
1180
Melting Onset (Solidus), °C 760
1120
Specific Heat Capacity, J/kg-K 380
410
Thermal Conductivity, W/m-K 110
29
Thermal Expansion, µm/m-K 21
15

Otherwise Unclassified Properties

Base Metal Price, % relative 22
40
Density, g/cm3 8.0
8.9
Embodied Carbon, kg CO2/kg material 2.7
5.0
Embodied Energy, MJ/kg 46
73
Embodied Water, L/kg 330
280

Common Calculations

Resilience: Unit (Modulus of Resilience), kJ/m3 74
130 to 750
Stiffness to Weight: Axial, points 7.1
8.7
Stiffness to Weight: Bending, points 19
20
Strength to Weight: Axial, points 13
15 to 20
Strength to Weight: Bending, points 14
16 to 18
Thermal Diffusivity, mm2/s 37
8.2
Thermal Shock Resistance, points 13
16 to 21

Alloy Composition


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Aluminum (Al), % 0 to 0.5
0
Copper (Cu), % 55 to 60
61.7 to 67.8
Iron (Fe), % 0 to 0.35
1.7 to 2.3
Lead (Pb), % 1.5 to 2.5
0 to 0.050
Manganese (Mn), % 0
1.5 to 2.5
Nickel (Ni), % 0
29 to 32
Tin (Sn), % 0 to 0.3
0
Zinc (Zn), % 35.9 to 43.5
0 to 1.0
Residuals, % 0 to 0.5
0 to 0.5