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C87900 Brass vs. C99700 Brass

Both C87900 brass and C99700 brass are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 83% 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 C87900 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, % 25
25
Poisson's Ratio 0.31
0.32
Shear Modulus, GPa 41
46
Tensile Strength: Ultimate (UTS), MPa 480
380
Tensile Strength: Yield (Proof), MPa 240
170

Thermal Properties

Latent Heat of Fusion, J/g 190
200
Maximum Temperature: Mechanical, °C 130
160
Melting Completion (Liquidus), °C 930
900
Melting Onset (Solidus), °C 900
880
Specific Heat Capacity, J/kg-K 390
410
Thermal Expansion, µm/m-K 20
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 15
3.0
Electrical Conductivity: Equal Weight (Specific), % IACS 17
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 24
25
Density, g/cm3 8.1
8.1
Embodied Carbon, kg CO2/kg material 2.7
3.3
Embodied Energy, MJ/kg 46
53
Embodied Water, L/kg 320
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 100
78
Resilience: Unit (Modulus of Resilience), kJ/m3 270
120
Stiffness to Weight: Axial, points 7.3
8.3
Stiffness to Weight: Bending, points 20
20
Strength to Weight: Axial, points 17
13
Strength to Weight: Bending, points 17
14
Thermal Shock Resistance, points 16
11

Alloy Composition


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Aluminum (Al), % 0 to 0.15
0.5 to 3.0
Antimony (Sb), % 0 to 0.050
0
Arsenic (As), % 0 to 0.050
0
Copper (Cu), % 63 to 69.2
54 to 65.5
Iron (Fe), % 0 to 0.4
0 to 1.0
Lead (Pb), % 0 to 0.25
0 to 2.0
Manganese (Mn), % 0 to 0.15
11 to 15
Nickel (Ni), % 0 to 0.5
4.0 to 6.0
Phosphorus (P), % 0 to 0.010
0
Silicon (Si), % 0.8 to 1.2
0
Sulfur (S), % 0 to 0.050
0
Tin (Sn), % 0 to 0.25
0 to 1.0
Zinc (Zn), % 30 to 36
19 to 25
Residuals, % 0
0 to 0.3