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H02 C43000 Brass vs. H02 C78200 Nickel Silver

Both H02 C43000 brass and H02 C78200 nickel silver are copper alloys. Both are furnished in the H02 (half hard) temper. They have 77% of their average alloy composition in common.

For each property being compared, the top bar is H02 C43000 brass and the bottom bar is H02 C78200 nickel silver.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
110
Elongation at Break, % 25
12
Poisson's Ratio 0.33
0.32
Rockwell B Hardness 73
78
Rockwell Superficial 30T Hardness 65
69
Shear Modulus, GPa 42
43
Shear Strength, MPa 270
320
Tensile Strength: Ultimate (UTS), MPa 430
480
Tensile Strength: Yield (Proof), MPa 410
430

Thermal Properties

Latent Heat of Fusion, J/g 190
190
Maximum Temperature: Mechanical, °C 170
160
Melting Completion (Liquidus), °C 1030
1000
Melting Onset (Solidus), °C 1000
970
Specific Heat Capacity, J/kg-K 380
390
Thermal Conductivity, W/m-K 120
48
Thermal Expansion, µm/m-K 18
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 27
11
Electrical Conductivity: Equal Weight (Specific), % IACS 28
12

Otherwise Unclassified Properties

Base Metal Price, % relative 29
28
Density, g/cm3 8.6
8.4
Embodied Carbon, kg CO2/kg material 2.8
3.3
Embodied Energy, MJ/kg 46
52
Embodied Water, L/kg 330
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
55
Resilience: Unit (Modulus of Resilience), kJ/m3 770
840
Stiffness to Weight: Axial, points 7.1
7.4
Stiffness to Weight: Bending, points 19
19
Strength to Weight: Axial, points 14
16
Strength to Weight: Bending, points 15
16
Thermal Diffusivity, mm2/s 36
15
Thermal Shock Resistance, points 15
16

Alloy Composition


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Copper (Cu), % 84 to 87
63 to 67
Iron (Fe), % 0 to 0.050
0 to 0.35
Lead (Pb), % 0 to 0.1
1.5 to 2.5
Manganese (Mn), % 0
0 to 0.5
Nickel (Ni), % 0
7.0 to 9.0
Tin (Sn), % 1.7 to 2.7
0
Zinc (Zn), % 9.7 to 14.3
20.2 to 28.5
Residuals, % 0 to 0.5
0 to 0.5