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H04 C32000 Brass vs. H04 C75700 Nickel Silver

Both H04 C32000 brass and H04 C75700 nickel silver are copper alloys. Both are furnished in the H04 (full hard) temper. They have 78% of their average alloy composition in common.

For each property being compared, the top bar is H04 C32000 brass and the bottom bar is H04 C75700 nickel silver.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
120
Elongation at Break, % 6.8
3.2
Poisson's Ratio 0.33
0.32
Shear Modulus, GPa 41
45
Shear Strength, MPa 280
350
Tensile Strength: Ultimate (UTS), MPa 470
610
Tensile Strength: Yield (Proof), MPa 390
580

Thermal Properties

Latent Heat of Fusion, J/g 190
200
Maximum Temperature: Mechanical, °C 170
180
Melting Completion (Liquidus), °C 1020
1040
Melting Onset (Solidus), °C 990
990
Specific Heat Capacity, J/kg-K 380
390
Thermal Conductivity, W/m-K 160
40
Thermal Expansion, µm/m-K 19
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 36
8.0
Electrical Conductivity: Equal Weight (Specific), % IACS 37
8.6

Otherwise Unclassified Properties

Base Metal Price, % relative 28
30
Density, g/cm3 8.7
8.4
Embodied Carbon, kg CO2/kg material 2.6
3.6
Embodied Energy, MJ/kg 42
56
Embodied Water, L/kg 310
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 30
19
Resilience: Unit (Modulus of Resilience), kJ/m3 680
1410
Stiffness to Weight: Axial, points 7.1
7.8
Stiffness to Weight: Bending, points 18
19
Strength to Weight: Axial, points 15
20
Strength to Weight: Bending, points 16
19
Thermal Diffusivity, mm2/s 47
12
Thermal Shock Resistance, points 16
23

Alloy Composition


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Copper (Cu), % 83.5 to 86.5
63.5 to 66.5
Iron (Fe), % 0 to 0.1
0 to 0.25
Lead (Pb), % 1.5 to 2.2
0 to 0.050
Manganese (Mn), % 0
0 to 0.5
Nickel (Ni), % 0 to 0.25
11 to 13
Zinc (Zn), % 10.6 to 15
19.2 to 25.5
Residuals, % 0 to 0.4
0 to 0.5