MakeItFrom.com
Menu (ESC)

C84200 Brass vs. CR025A Copper

Both C84200 brass and CR025A copper are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 80% of their average alloy composition in common.

For each property being compared, the top bar is C84200 brass and the bottom bar is CR025A copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
120
Elongation at Break, % 15
15
Poisson's Ratio 0.33
0.34
Shear Modulus, GPa 40
43
Tensile Strength: Ultimate (UTS), MPa 250
230
Tensile Strength: Yield (Proof), MPa 120
140

Thermal Properties

Latent Heat of Fusion, J/g 180
210
Maximum Temperature: Mechanical, °C 150
200
Melting Completion (Liquidus), °C 990
1090
Melting Onset (Solidus), °C 840
1040
Specific Heat Capacity, J/kg-K 370
390
Thermal Conductivity, W/m-K 72
370
Thermal Expansion, µm/m-K 19
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 16
99
Electrical Conductivity: Equal Weight (Specific), % IACS 17
99

Otherwise Unclassified Properties

Base Metal Price, % relative 30
31
Density, g/cm3 8.5
9.0
Embodied Carbon, kg CO2/kg material 3.1
2.6
Embodied Energy, MJ/kg 51
41
Embodied Water, L/kg 350
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 31
31
Resilience: Unit (Modulus of Resilience), kJ/m3 72
83
Stiffness to Weight: Axial, points 6.9
7.2
Stiffness to Weight: Bending, points 18
18
Strength to Weight: Axial, points 8.2
7.1
Strength to Weight: Bending, points 10
9.3
Thermal Diffusivity, mm2/s 23
110
Thermal Shock Resistance, points 9.1
8.1

Alloy Composition

Aluminum (Al), % 0 to 0.0050
0
Antimony (Sb), % 0 to 0.25
0
Bismuth (Bi), % 0
0 to 0.00050
Copper (Cu), % 78 to 82
99.9 to 99.96
Iron (Fe), % 0 to 0.4
0
Lead (Pb), % 2.0 to 3.0
0 to 0.0050
Nickel (Ni), % 0 to 0.8
0
Phosphorus (P), % 0 to 1.5
0.040 to 0.060
Silicon (Si), % 0 to 0.0050
0
Silver (Ag), % 0
0 to 0.015
Sulfur (S), % 0 to 0.080
0
Tin (Sn), % 4.0 to 6.0
0
Zinc (Zn), % 10 to 16
0
Residuals, % 0 to 0.7
0