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C69400 Brass vs. C99700 Brass

Both C69400 brass and C99700 brass are copper alloys. They have 74% 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 C69400 brass and the bottom bar is C99700 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
120
Elongation at Break, % 17
25
Poisson's Ratio 0.33
0.32
Shear Modulus, GPa 42
46
Tensile Strength: Ultimate (UTS), MPa 570
380
Tensile Strength: Yield (Proof), MPa 270
170

Thermal Properties

Latent Heat of Fusion, J/g 260
200
Maximum Temperature: Mechanical, °C 170
160
Melting Completion (Liquidus), °C 920
900
Melting Onset (Solidus), °C 820
880
Specific Heat Capacity, J/kg-K 410
410
Thermal Expansion, µm/m-K 18
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 6.2
3.0
Electrical Conductivity: Equal Weight (Specific), % IACS 6.7
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 27
25
Density, g/cm3 8.3
8.1
Embodied Carbon, kg CO2/kg material 2.7
3.3
Embodied Energy, MJ/kg 44
53
Embodied Water, L/kg 300
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 80
78
Resilience: Unit (Modulus of Resilience), kJ/m3 340
120
Stiffness to Weight: Axial, points 7.4
8.3
Stiffness to Weight: Bending, points 19
20
Strength to Weight: Axial, points 19
13
Strength to Weight: Bending, points 18
14
Thermal Shock Resistance, points 20
11

Alloy Composition

Aluminum (Al), % 0
0.5 to 3.0
Copper (Cu), % 80 to 83
54 to 65.5
Iron (Fe), % 0 to 0.2
0 to 1.0
Lead (Pb), % 0 to 0.3
0 to 2.0
Manganese (Mn), % 0
11 to 15
Nickel (Ni), % 0
4.0 to 6.0
Silicon (Si), % 3.5 to 4.5
0
Tin (Sn), % 0
0 to 1.0
Zinc (Zn), % 11.5 to 16.5
19 to 25
Residuals, % 0
0 to 0.3