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C43000 Brass vs. C84400 Valve Metal

Both C43000 brass and C84400 valve metal are copper alloys. They have a moderately high 91% of their average alloy composition in common. There are 28 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 C43000 brass and the bottom bar is C84400 valve metal.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
100
Elongation at Break, % 3.0 to 55
19
Poisson's Ratio 0.33
0.34
Shear Modulus, GPa 42
39
Tensile Strength: Ultimate (UTS), MPa 320 to 710
230
Tensile Strength: Yield (Proof), MPa 130 to 550
110

Thermal Properties

Latent Heat of Fusion, J/g 190
180
Maximum Temperature: Mechanical, °C 170
160
Melting Completion (Liquidus), °C 1030
1000
Melting Onset (Solidus), °C 1000
840
Specific Heat Capacity, J/kg-K 380
370
Thermal Conductivity, W/m-K 120
72
Thermal Expansion, µm/m-K 18
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 27
16
Electrical Conductivity: Equal Weight (Specific), % IACS 28
17

Otherwise Unclassified Properties

Base Metal Price, % relative 29
29
Density, g/cm3 8.6
8.8
Embodied Carbon, kg CO2/kg material 2.8
2.8
Embodied Energy, MJ/kg 46
46
Embodied Water, L/kg 330
340

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 20 to 150
36
Resilience: Unit (Modulus of Resilience), kJ/m3 82 to 1350
58
Stiffness to Weight: Axial, points 7.1
6.6
Stiffness to Weight: Bending, points 19
18
Strength to Weight: Axial, points 10 to 23
7.2
Strength to Weight: Bending, points 12 to 20
9.4
Thermal Diffusivity, mm2/s 36
22
Thermal Shock Resistance, points 11 to 25
8.3

Alloy Composition

Aluminum (Al), % 0
0 to 0.0050
Antimony (Sb), % 0
0 to 0.25
Copper (Cu), % 84 to 87
78 to 82
Iron (Fe), % 0 to 0.050
0 to 0.4
Lead (Pb), % 0 to 0.1
6.0 to 8.0
Nickel (Ni), % 0
0 to 1.0
Phosphorus (P), % 0
0 to 1.5
Silicon (Si), % 0
0 to 0.0050
Sulfur (S), % 0
0 to 0.080
Tin (Sn), % 1.7 to 2.7
2.3 to 3.5
Zinc (Zn), % 9.7 to 14.3
7.0 to 10
Residuals, % 0
0 to 0.7