C68700 aluminum brass, a high-performance copper alloy, is widely used in industry due to its excellent physical and chemical properties. Below is a comprehensive introduction to C68700 aluminum brass, including its specifications and application information.
Chemical Composition
The chemical composition of C68700 aluminum brass is shown in the following table:
· Copper (Cu): 76.0% to 79.0%
· Zinc (Zn): Balance
· Aluminum (Al): 1.8% to 2.5%
· Arsenic (As): 0.02% to 0.06%
· Lead (Pb): 0.07% maximum
· Iron (Fe): 0.06% maximum
Physical Properties
The physical properties of C68700 aluminum brass are as follows:
· Density: 8.33 g/cm³ or 0.301 lb/in³
· Modulus of Elasticity: 117 GPa
· Thermal Conductivity: 58 Btu/sq ft/ft hr/°F
· Coefficient of Thermal Expansion: 10.3 x 10^-6 per °F (68 – 120°C) 572°F)
· Specific Heat: 0.09 Btu/lb/°F
· Electrical Conductivity: 23% IACS at 68°F
Mechanical Properties
The mechanical properties of C68700 aluminum brass are as follows:
· Tensile Strength: Minimum 345 MPa
· Yield Strength: Minimum 125 MPa
· Elongation: Typical 55%
· Hardness: Rockwell F scale 77 Typ
why choose us
Professional copper pipe supplier
As a professional enterprise dedicated to global copper product trade since 2008, GNEE Metal Group deeply recognizes the quality and responsibility embodied in the ASTM B111 standard. This standard not only specifies chemical composition and mechanical properties but also represents a comprehensive quality commitment spanning manufacturing processes to testing and verification. GNEE solemnly assures global customers that every ASTM B111-standard condenser tube and copper alloy tubing we supply will strictly adhere to its requirements for seamless manufacturing, annealing treatment, eddy current testing, and various mechanical performance tests.
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