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C67300 Bronze vs. C84400 Valve Metal

Both C67300 bronze and C84400 valve metal are copper alloys. They have 71% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is C67300 bronze 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, % 12
19
Poisson's Ratio 0.31
0.34
Shear Modulus, GPa 41
39
Tensile Strength: Ultimate (UTS), MPa 500
230
Tensile Strength: Yield (Proof), MPa 340
110

Thermal Properties

Latent Heat of Fusion, J/g 190
180
Maximum Temperature: Mechanical, °C 130
160
Melting Completion (Liquidus), °C 870
1000
Melting Onset (Solidus), °C 830
840
Specific Heat Capacity, J/kg-K 390
370
Thermal Conductivity, W/m-K 95
72
Thermal Expansion, µm/m-K 20
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 22
16
Electrical Conductivity: Equal Weight (Specific), % IACS 25
17

Otherwise Unclassified Properties

Base Metal Price, % relative 23
29
Density, g/cm3 8.0
8.8
Embodied Carbon, kg CO2/kg material 2.7
2.8
Embodied Energy, MJ/kg 46
46
Embodied Water, L/kg 320
340

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 55
36
Resilience: Unit (Modulus of Resilience), kJ/m3 550
58
Stiffness to Weight: Axial, points 7.4
6.6
Stiffness to Weight: Bending, points 20
18
Strength to Weight: Axial, points 17
7.2
Strength to Weight: Bending, points 17
9.4
Thermal Diffusivity, mm2/s 30
22
Thermal Shock Resistance, points 16
8.3

Alloy Composition

Aluminum (Al), % 0 to 0.25
0 to 0.0050
Antimony (Sb), % 0
0 to 0.25
Copper (Cu), % 58 to 63
78 to 82
Iron (Fe), % 0 to 0.5
0 to 0.4
Lead (Pb), % 0.4 to 3.0
6.0 to 8.0
Manganese (Mn), % 2.0 to 3.5
0
Nickel (Ni), % 0 to 0.25
0 to 1.0
Phosphorus (P), % 0
0 to 1.5
Silicon (Si), % 0.5 to 1.5
0 to 0.0050
Sulfur (S), % 0
0 to 0.080
Tin (Sn), % 0 to 0.3
2.3 to 3.5
Zinc (Zn), % 27.2 to 39.1
7.0 to 10
Residuals, % 0
0 to 0.7