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H08 C23400 Brass vs. H08 C72800 Copper-nickel

Both H08 C23400 brass and H08 C72800 copper-nickel are copper alloys. Both are furnished in the H08 (spring) temper. They have 81% of their average alloy composition in common. There are 27 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 H08 C23400 brass and the bottom bar is H08 C72800 copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
120
Elongation at Break, % 3.1
3.9
Poisson's Ratio 0.32
0.34
Shear Modulus, GPa 42
44
Shear Strength, MPa 350
550
Tensile Strength: Ultimate (UTS), MPa 610
960
Tensile Strength: Yield (Proof), MPa 470
910

Thermal Properties

Latent Heat of Fusion, J/g 190
210
Maximum Temperature: Mechanical, °C 160
200
Melting Completion (Liquidus), °C 970
1080
Melting Onset (Solidus), °C 930
920
Specific Heat Capacity, J/kg-K 390
380
Thermal Conductivity, W/m-K 120
55
Thermal Expansion, µm/m-K 19
17

Otherwise Unclassified Properties

Base Metal Price, % relative 27
38
Density, g/cm3 8.5
8.8
Embodied Carbon, kg CO2/kg material 2.6
4.4
Embodied Energy, MJ/kg 43
68
Embodied Water, L/kg 320
360

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 17
37
Resilience: Unit (Modulus of Resilience), kJ/m3 980
3530
Stiffness to Weight: Axial, points 7.2
7.4
Stiffness to Weight: Bending, points 19
19
Strength to Weight: Axial, points 20
30
Strength to Weight: Bending, points 19
25
Thermal Diffusivity, mm2/s 36
17
Thermal Shock Resistance, points 21
34

Alloy Composition

Aluminum (Al), % 0
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), % 81 to 84
78.3 to 82.8
Iron (Fe), % 0 to 0.050
0 to 0.5
Lead (Pb), % 0 to 0.050
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
7.5 to 8.5
Titanium (Ti), % 0
0 to 0.010
Zinc (Zn), % 15.7 to 19
0 to 1.0
Residuals, % 0
0 to 0.3