MakeItFrom.com
Menu (ESC)

C84800 Brass vs. C86700 Bronze

Both C84800 brass and C86700 bronze are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 75% of their average alloy composition in common.

For each property being compared, the top bar is C84800 brass and the bottom bar is C86700 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
110
Elongation at Break, % 18
17
Poisson's Ratio 0.33
0.31
Shear Modulus, GPa 39
41
Tensile Strength: Ultimate (UTS), MPa 230
630
Tensile Strength: Yield (Proof), MPa 100
250

Thermal Properties

Latent Heat of Fusion, J/g 180
180
Maximum Temperature: Mechanical, °C 150
130
Melting Completion (Liquidus), °C 950
880
Melting Onset (Solidus), °C 830
860
Specific Heat Capacity, J/kg-K 370
400
Thermal Conductivity, W/m-K 72
89
Thermal Expansion, µm/m-K 19
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 16
17
Electrical Conductivity: Equal Weight (Specific), % IACS 17
19

Otherwise Unclassified Properties

Base Metal Price, % relative 27
23
Density, g/cm3 8.6
7.9
Embodied Carbon, kg CO2/kg material 2.8
2.9
Embodied Energy, MJ/kg 46
49
Embodied Water, L/kg 340
340

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 34
86
Resilience: Unit (Modulus of Resilience), kJ/m3 53
290
Stiffness to Weight: Axial, points 6.6
7.5
Stiffness to Weight: Bending, points 18
20
Strength to Weight: Axial, points 7.3
22
Strength to Weight: Bending, points 9.6
21
Thermal Diffusivity, mm2/s 23
28
Thermal Shock Resistance, points 8.2
21

Alloy Composition

Aluminum (Al), % 0 to 0.0050
1.0 to 3.0
Antimony (Sb), % 0 to 0.25
0
Copper (Cu), % 75 to 77
55 to 60
Iron (Fe), % 0 to 0.4
1.0 to 3.0
Lead (Pb), % 5.5 to 7.0
0.5 to 1.5
Manganese (Mn), % 0
1.0 to 3.5
Nickel (Ni), % 0 to 1.0
0 to 1.0
Phosphorus (P), % 0 to 1.5
0
Silicon (Si), % 0 to 0.0050
0
Sulfur (S), % 0 to 0.080
0
Tin (Sn), % 2.0 to 3.0
0 to 1.5
Zinc (Zn), % 13 to 17
30 to 38
Residuals, % 0
0 to 1.0