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C91300 Bell Metal vs. C84400 Valve Metal

Both C91300 bell metal and C84400 valve metal are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 85% of their average alloy composition in common. There are 26 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 C91300 bell metal and the bottom bar is C84400 valve metal.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
100
Elongation at Break, % 0.5
19
Poisson's Ratio 0.34
0.34
Shear Modulus, GPa 38
39
Tensile Strength: Ultimate (UTS), MPa 240
230
Tensile Strength: Yield (Proof), MPa 210
110

Thermal Properties

Latent Heat of Fusion, J/g 180
180
Maximum Temperature: Mechanical, °C 150
160
Melting Completion (Liquidus), °C 890
1000
Melting Onset (Solidus), °C 820
840
Specific Heat Capacity, J/kg-K 360
370
Thermal Expansion, µm/m-K 18
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.0
16
Electrical Conductivity: Equal Weight (Specific), % IACS 7.4
17

Otherwise Unclassified Properties

Base Metal Price, % relative 39
29
Density, g/cm3 8.6
8.8
Embodied Carbon, kg CO2/kg material 4.5
2.8
Embodied Energy, MJ/kg 74
46
Embodied Water, L/kg 460
340

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 1.1
36
Resilience: Unit (Modulus of Resilience), kJ/m3 210
58
Stiffness to Weight: Axial, points 6.6
6.6
Stiffness to Weight: Bending, points 18
18
Strength to Weight: Axial, points 7.8
7.2
Strength to Weight: Bending, points 10
9.4
Thermal Shock Resistance, points 9.3
8.3

Alloy Composition

Aluminum (Al), % 0 to 0.0050
0 to 0.0050
Antimony (Sb), % 0 to 0.2
0 to 0.25
Copper (Cu), % 79 to 82
78 to 82
Iron (Fe), % 0 to 0.25
0 to 0.4
Lead (Pb), % 0 to 0.25
6.0 to 8.0
Nickel (Ni), % 0 to 0.5
0 to 1.0
Phosphorus (P), % 0 to 1.5
0 to 1.5
Silicon (Si), % 0 to 0.0050
0 to 0.0050
Sulfur (S), % 0 to 0.050
0 to 0.080
Tin (Sn), % 18 to 20
2.3 to 3.5
Zinc (Zn), % 0 to 0.25
7.0 to 10
Residuals, % 0
0 to 0.7