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C99700 Brass vs. C66900 Brass

Both C99700 brass and C66900 brass are copper alloys. They have a moderately high 94% 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 C99700 brass and the bottom bar is C66900 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
120
Elongation at Break, % 25
1.1 to 26
Poisson's Ratio 0.32
0.32
Shear Modulus, GPa 46
45
Tensile Strength: Ultimate (UTS), MPa 380
460 to 770
Tensile Strength: Yield (Proof), MPa 170
330 to 760

Thermal Properties

Latent Heat of Fusion, J/g 200
190
Maximum Temperature: Mechanical, °C 160
150
Melting Completion (Liquidus), °C 900
860
Melting Onset (Solidus), °C 880
850
Specific Heat Capacity, J/kg-K 410
400
Thermal Expansion, µm/m-K 20
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.0
3.4
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
3.8

Otherwise Unclassified Properties

Base Metal Price, % relative 25
23
Density, g/cm3 8.1
8.2
Embodied Carbon, kg CO2/kg material 3.3
2.8
Embodied Energy, MJ/kg 53
46
Embodied Water, L/kg 320
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 78
4.6 to 200
Resilience: Unit (Modulus of Resilience), kJ/m3 120
460 to 2450
Stiffness to Weight: Axial, points 8.3
8.1
Stiffness to Weight: Bending, points 20
20
Strength to Weight: Axial, points 13
15 to 26
Strength to Weight: Bending, points 14
16 to 23
Thermal Shock Resistance, points 11
14 to 23

Alloy Composition

Aluminum (Al), % 0.5 to 3.0
0
Copper (Cu), % 54 to 65.5
62.5 to 64.5
Iron (Fe), % 0 to 1.0
0 to 0.25
Lead (Pb), % 0 to 2.0
0 to 0.050
Manganese (Mn), % 11 to 15
11.5 to 12.5
Nickel (Ni), % 4.0 to 6.0
0
Tin (Sn), % 0 to 1.0
0
Zinc (Zn), % 19 to 25
22.5 to 26
Residuals, % 0
0 to 0.2