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C38000 Brass vs. C72800 Copper-nickel

Both C38000 brass and C72800 copper-nickel are copper alloys. They have 59% of their average alloy composition in common. There are 27 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 C38000 brass and the bottom bar is C72800 copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
120
Elongation at Break, % 17
3.9 to 23
Poisson's Ratio 0.31
0.34
Shear Modulus, GPa 39
44
Shear Strength, MPa 230
330 to 740
Tensile Strength: Ultimate (UTS), MPa 380
520 to 1270
Tensile Strength: Yield (Proof), MPa 120
250 to 1210

Thermal Properties

Latent Heat of Fusion, J/g 170
210
Maximum Temperature: Mechanical, °C 110
200
Melting Completion (Liquidus), °C 800
1080
Melting Onset (Solidus), °C 760
920
Specific Heat Capacity, J/kg-K 380
380
Thermal Conductivity, W/m-K 110
55
Thermal Expansion, µm/m-K 21
17

Otherwise Unclassified Properties

Base Metal Price, % relative 22
38
Density, g/cm3 8.0
8.8
Embodied Carbon, kg CO2/kg material 2.7
4.4
Embodied Energy, MJ/kg 46
68
Embodied Water, L/kg 330
360

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 50
37 to 99
Resilience: Unit (Modulus of Resilience), kJ/m3 74
260 to 5650
Stiffness to Weight: Axial, points 7.1
7.4
Stiffness to Weight: Bending, points 19
19
Strength to Weight: Axial, points 13
17 to 40
Strength to Weight: Bending, points 14
16 to 30
Thermal Diffusivity, mm2/s 37
17
Thermal Shock Resistance, points 13
19 to 45

Alloy Composition

Aluminum (Al), % 0 to 0.5
0 to 0.1
Antimony (Sb), % 0
0 to 0.020
Bismuth (Bi), % 0
0 to 0.0010
Boron (B), % 0
0 to 0.0010
Copper (Cu), % 55 to 60
78.3 to 82.8
Iron (Fe), % 0 to 0.35
0 to 0.5
Lead (Pb), % 1.5 to 2.5
0 to 0.0050
Magnesium (Mg), % 0
0.0050 to 0.15
Manganese (Mn), % 0
0.050 to 0.3
Nickel (Ni), % 0
9.5 to 10.5
Niobium (Nb), % 0
0.1 to 0.3
Phosphorus (P), % 0
0 to 0.0050
Silicon (Si), % 0
0 to 0.050
Sulfur (S), % 0
0 to 0.0025
Tin (Sn), % 0 to 0.3
7.5 to 8.5
Titanium (Ti), % 0
0 to 0.010
Zinc (Zn), % 35.9 to 43.5
0 to 1.0
Residuals, % 0
0 to 0.3