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H08 C12900 Copper vs. H08 C63800 Bronze

Both H08 C12900 copper and H08 C63800 bronze are copper alloys. Both are furnished in the H08 (spring) temper. They have a moderately high 94% of their average alloy composition in common. There are 26 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is H08 C12900 copper and the bottom bar is H08 C63800 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
110
Poisson's Ratio 0.34
0.34
Rockwell B Hardness 60
100
Rockwell Superficial 30T Hardness 63
83
Shear Modulus, GPa 43
43
Tensile Strength: Ultimate (UTS), MPa 420
890

Thermal Properties

Latent Heat of Fusion, J/g 210
240
Maximum Temperature: Mechanical, °C 200
200
Melting Completion (Liquidus), °C 1080
1030
Melting Onset (Solidus), °C 1030
1000
Specific Heat Capacity, J/kg-K 390
410
Thermal Conductivity, W/m-K 380
40
Thermal Expansion, µm/m-K 17
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 98
10
Electrical Conductivity: Equal Weight (Specific), % IACS 98
10

Otherwise Unclassified Properties

Base Metal Price, % relative 32
30
Density, g/cm3 9.0
8.6
Embodied Carbon, kg CO2/kg material 2.6
2.8
Embodied Energy, MJ/kg 41
45
Embodied Water, L/kg 330
330

Common Calculations

Stiffness to Weight: Axial, points 7.2
7.4
Stiffness to Weight: Bending, points 18
19
Strength to Weight: Axial, points 13
29
Strength to Weight: Bending, points 14
24
Thermal Diffusivity, mm2/s 110
11
Thermal Shock Resistance, points 15
32

Alloy Composition


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Aluminum (Al), % 0
2.5 to 3.1
Antimony (Sb), % 0 to 0.0030
0
Arsenic (As), % 0 to 0.012
0
Bismuth (Bi), % 0 to 0.0030
0
Cobalt (Co), % 0
0.25 to 0.55
Copper (Cu), % 99.88 to 100
92.4 to 95.8
Iron (Fe), % 0
0 to 0.2
Lead (Pb), % 0 to 0.0040
0 to 0.050
Manganese (Mn), % 0
0 to 0.1
Nickel (Ni), % 0 to 0.050
0 to 0.2
Silicon (Si), % 0
1.5 to 2.1
Silver (Ag), % 0 to 0.054
0
Tellurium (Te), % 0 to 0.025
0
Zinc (Zn), % 0
0 to 0.8
Residuals, % 0
0 to 0.5