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As-cast C99400 Brass vs. As-cast C99750 Brass

Both as-cast C99400 brass and as-cast C99750 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 26 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is as-cast C99400 brass and the bottom bar is as-cast C99750 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
130
Elongation at Break, % 25
30
Poisson's Ratio 0.34
0.32
Shear Modulus, GPa 44
48
Tensile Strength: Ultimate (UTS), MPa 460
450
Tensile Strength: Yield (Proof), MPa 230
220

Thermal Properties

Latent Heat of Fusion, J/g 230
200
Maximum Temperature: Mechanical, °C 200
160
Melting Completion (Liquidus), °C 1070
840
Melting Onset (Solidus), °C 1020
820
Specific Heat Capacity, J/kg-K 400
410
Thermal Expansion, µm/m-K 17
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 17
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 17
2.2

Otherwise Unclassified Properties

Base Metal Price, % relative 30
23
Density, g/cm3 8.7
8.1
Embodied Carbon, kg CO2/kg material 2.8
3.1
Embodied Energy, MJ/kg 45
51
Embodied Water, L/kg 310
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 95
110
Resilience: Unit (Modulus of Resilience), kJ/m3 230
190
Stiffness to Weight: Axial, points 7.5
8.6
Stiffness to Weight: Bending, points 19
21
Strength to Weight: Axial, points 15
15
Strength to Weight: Bending, points 15
16
Thermal Shock Resistance, points 16
13

Alloy Composition

Aluminum (Al), % 0.5 to 2.0
0.25 to 3.0
Copper (Cu), % 83.5 to 96.5
55 to 61
Iron (Fe), % 1.0 to 3.0
0 to 1.0
Lead (Pb), % 0 to 0.25
0.5 to 2.5
Manganese (Mn), % 0 to 0.5
17 to 23
Nickel (Ni), % 1.0 to 3.5
0 to 5.0
Silicon (Si), % 0.5 to 2.0
0
Zinc (Zn), % 0.5 to 5.0
17 to 23
Residuals, % 0
0 to 0.3