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C37700 Brass vs. C83300 Brass

Both C37700 brass and C83300 brass are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 65% 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 C37700 brass and the bottom bar is C83300 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
110
Elongation at Break, % 40
35
Poisson's Ratio 0.31
0.34
Shear Modulus, GPa 39
42
Tensile Strength: Ultimate (UTS), MPa 400
220
Tensile Strength: Yield (Proof), MPa 160
69

Thermal Properties

Latent Heat of Fusion, J/g 170
200
Maximum Temperature: Mechanical, °C 120
180
Melting Completion (Liquidus), °C 890
1060
Melting Onset (Solidus), °C 880
1030
Specific Heat Capacity, J/kg-K 380
380
Thermal Conductivity, W/m-K 120
160
Thermal Expansion, µm/m-K 21
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 27
32
Electrical Conductivity: Equal Weight (Specific), % IACS 30
33

Otherwise Unclassified Properties

Base Metal Price, % relative 23
30
Density, g/cm3 8.1
8.8
Embodied Carbon, kg CO2/kg material 2.6
2.7
Embodied Energy, MJ/kg 45
44
Embodied Water, L/kg 320
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
60
Resilience: Unit (Modulus of Resilience), kJ/m3 120
21
Stiffness to Weight: Axial, points 7.1
7.0
Stiffness to Weight: Bending, points 19
18
Strength to Weight: Axial, points 14
6.9
Strength to Weight: Bending, points 15
9.2
Thermal Diffusivity, mm2/s 39
48
Thermal Shock Resistance, points 13
7.9

Alloy Composition

Copper (Cu), % 58 to 61
92 to 94
Iron (Fe), % 0 to 0.3
0
Lead (Pb), % 1.5 to 2.5
1.0 to 2.0
Tin (Sn), % 0
1.0 to 2.0
Zinc (Zn), % 35.7 to 40.5
2.0 to 6.0
Residuals, % 0
0 to 0.7