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C51900 Bronze vs. C84400 Valve Metal

Both C51900 bronze and C84400 valve metal are copper alloys. They have 84% 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 C51900 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, % 14 to 29
19
Poisson's Ratio 0.34
0.34
Shear Modulus, GPa 42
39
Tensile Strength: Ultimate (UTS), MPa 380 to 620
230
Tensile Strength: Yield (Proof), MPa 390 to 570
110

Thermal Properties

Latent Heat of Fusion, J/g 200
180
Maximum Temperature: Mechanical, °C 180
160
Melting Completion (Liquidus), °C 1040
1000
Melting Onset (Solidus), °C 930
840
Specific Heat Capacity, J/kg-K 380
370
Thermal Conductivity, W/m-K 66
72
Thermal Expansion, µm/m-K 18
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 14
16
Electrical Conductivity: Equal Weight (Specific), % IACS 14
17

Otherwise Unclassified Properties

Base Metal Price, % relative 33
29
Density, g/cm3 8.8
8.8
Embodied Carbon, kg CO2/kg material 3.2
2.8
Embodied Energy, MJ/kg 51
46
Embodied Water, L/kg 360
340

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 55 to 180
36
Resilience: Unit (Modulus of Resilience), kJ/m3 680 to 1450
58
Stiffness to Weight: Axial, points 7.0
6.6
Stiffness to Weight: Bending, points 18
18
Strength to Weight: Axial, points 12 to 19
7.2
Strength to Weight: Bending, points 13 to 18
9.4
Thermal Diffusivity, mm2/s 20
22
Thermal Shock Resistance, points 14 to 22
8.3

Alloy Composition

Aluminum (Al), % 0
0 to 0.0050
Antimony (Sb), % 0
0 to 0.25
Copper (Cu), % 91.7 to 95
78 to 82
Iron (Fe), % 0 to 0.1
0 to 0.4
Lead (Pb), % 0 to 0.050
6.0 to 8.0
Nickel (Ni), % 0
0 to 1.0
Phosphorus (P), % 0.030 to 0.35
0 to 1.5
Silicon (Si), % 0
0 to 0.0050
Sulfur (S), % 0
0 to 0.080
Tin (Sn), % 5.0 to 7.0
2.3 to 3.5
Zinc (Zn), % 0 to 0.3
7.0 to 10
Residuals, % 0
0 to 0.7