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C85400 Brass vs. C99700 Brass

Both C85400 brass and C99700 brass are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 84% 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 C85400 brass and the bottom bar is C99700 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
120
Elongation at Break, % 23
25
Poisson's Ratio 0.32
0.32
Shear Modulus, GPa 40
46
Tensile Strength: Ultimate (UTS), MPa 220
380
Tensile Strength: Yield (Proof), MPa 85
170

Thermal Properties

Latent Heat of Fusion, J/g 180
200
Maximum Temperature: Mechanical, °C 130
160
Melting Completion (Liquidus), °C 940
900
Melting Onset (Solidus), °C 940
880
Specific Heat Capacity, J/kg-K 380
410
Thermal Expansion, µm/m-K 20
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 20
3.0
Electrical Conductivity: Equal Weight (Specific), % IACS 22
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 25
25
Density, g/cm3 8.3
8.1
Embodied Carbon, kg CO2/kg material 2.8
3.3
Embodied Energy, MJ/kg 46
53
Embodied Water, L/kg 330
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 40
78
Resilience: Unit (Modulus of Resilience), kJ/m3 35
120
Stiffness to Weight: Axial, points 7.0
8.3
Stiffness to Weight: Bending, points 19
20
Strength to Weight: Axial, points 7.5
13
Strength to Weight: Bending, points 9.9
14
Thermal Shock Resistance, points 7.6
11

Alloy Composition

Aluminum (Al), % 0 to 0.35
0.5 to 3.0
Copper (Cu), % 65 to 70
54 to 65.5
Iron (Fe), % 0 to 0.7
0 to 1.0
Lead (Pb), % 1.5 to 3.8
0 to 2.0
Manganese (Mn), % 0
11 to 15
Nickel (Ni), % 0 to 1.0
4.0 to 6.0
Silicon (Si), % 0 to 0.050
0
Tin (Sn), % 0.5 to 1.5
0 to 1.0
Zinc (Zn), % 24 to 32
19 to 25
Residuals, % 0
0 to 0.3