ASTM B111 C44300 Copper Pipe for Aircon Material Overview
ASTM B111 C44300 copper supply line is a high-performance lead-brass alloy, a type of copper-zinc alloy (brass). It is widely used in industry due to its excellent mechanical properties, corrosion resistance, and processability. This material exhibits excellent stability in various forms, including copper tubes and copper plates, making it suitable for a variety of complex working conditions.
Chemical Composition of ASTM B111 C44300 Thin Wall Copper Tubing
The chemical composition of C44300 is primarily copper (Cu) and zinc (Zn), with small amounts of lead (Pb) and other trace elements. The typical composition is as follows:
Copper (Cu): 70.0%-73.0%
Zinc (Zn): Balance
Lead (Pb): 0.8%-1.2%
Other Elements: Trace amounts (such as iron, tin, etc.)
The addition of lead significantly improves the material's machinability, making it easier to machine into precision parts.
Physical and Mechanical Properties of ASTM B111 C44300 Thin Wall Copper Pipe
C44300 offers excellent strength and ductility. Typical properties include:
Density: Approximately 8.5 g/cm³
Tensile Strength: ≥340 MPa
Elongation: ≥25%
Hardness: HB 80-120
Conductivity: Approximately 28% of pure copper
This material exhibits excellent corrosion resistance in seawater, freshwater, and most industrial environments, making it particularly suitable for applications involving contact with humid or corrosive media.
Main Applications of ASTM B111 C44300 Hollow Copper Pipe
Shipbuilding: Manufacturing seawater-resistant components such as valves, pump bodies, and propeller parts.
Electrical and Electronics: Used in parts requiring both electrical conductivity and mechanical strength, such as terminals and connectors.
Mechanical Manufacturing: Manufacturing wear-resistant parts such as gears and bearing bushings.
Chemical Equipment: Commonly used in corrosion-resistant piping and heat exchanger components.
C44300 copper alloy has become a key industrial material due to its balanced mechanical properties, excellent corrosion resistance, and superior machinability. Whether in rod or sheet form, it meets the demands of high precision and reliability, making it particularly suitable for long-term service in harsh environments.
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.
Contact us today for a quotation：sales@gneesteel.com
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.
Customer visits
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