As a high-performance copper alloy, C60800 aluminum bronze plays an irreplaceable role in the industrial sector. With its unique physical and chemical properties and wide range of applications, this alloy has become a key material in high-end fields such as machinery manufacturing, shipbuilding, and aerospace.
Chemical Content of ASTM B111 C60800 Type K Copper Tubing
From a materials science perspective, C60800 aluminum bronze belongs to the copper-aluminum-iron-nickel alloy family. Its typical chemical composition is 88%-91% copper, 8.5%-11% aluminum, 2%-4% iron, and 1%-2% nickel. This precise elemental composition gives the material excellent comprehensive performance. In terms of physical properties, C60800 aluminum bronze has a density of approximately 7.5 g/cm³, a melting point range of 1040-1080°C, and a thermal conductivity of 45-60 W/(m·K). These fundamental parameters provide a theoretical basis for its application in high-temperature environments. Of particular note, after proper heat treatment, this material achieves a tensile strength of 550-750 MPa, a yield strength of 250-450 MPa, an elongation maintained between 10% and 25%, and a hardness of HB170-220. These mechanical properties are significantly superior to those of ordinary bronze.
Corrosion Resistance of ASTM B111 C60800 Copper Pipe for AC
Another key advantage of this material is its corrosion resistance. In actual testing, the annual corrosion rate of C60800 aluminum bronze in seawater, acidic solutions, and alkaline environments was less than 0.05 mm/year, primarily due to the dense aluminum oxide protective film formed on its surface. Furthermore, this alloy exhibits outstanding wear resistance. Under dry friction conditions, its wear is only one-third to one-half that of ordinary tin bronze. This excellent combination of wear and corrosion resistance makes it a preferred material for key components of marine engineering equipment.
ASTM B111 C60800 copper pipe soldering production process
The manufacturing process for C60800 aluminum bronze combines traditional metallurgical techniques with modern precision machining. Melting is performed in a medium-frequency induction furnace under a reducing atmosphere. Aluminum is added as a master alloy, with the addition sequence and temperature profile strictly controlled. Casting typically utilizes mold casting or continuous casting to achieve a dense as-cast structure. Hot working temperatures are typically controlled between 750-850°C, with microstructure refinement achieved through multiple rolling or forging passes. After cold working, the material undergoes an annealing treatment at 600-700°C to eliminate work hardening.
why choose us
Professional copper pipe supplier
As a professional enterprise dedicated to global copper product, GNEE Metal 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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Packaging and shipping
GNEE offers professional packaging for exported copper pipes. First, we apply anti-rust oil and plastic film to prevent oxidation. Then, we securely strap with steel straps and add corner protectors. Finally, we place the pipes on wooden pallets and reinforce them with iron or wooden boxes, ensuring they are moisture-proof and impact-resistant during ocean transport, while facilitating easy loading and unloading. All packaging meets export standards.
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