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UNS-C44300-Admiralty-Brass-Tube.pdf

What is ASTM B111 C44300 copper tubing?

ASTM B111 Copper Tube PDF

 

C44300 copper tubing, also known as HSn70-1 tin brass tubing or naval brass tubing, is a copper alloy tubing with excellent properties. The following is a detailed introduction to C44300 copper tubing:

 

Chemical Composition of ASTM B111 C44300 Copper Tubing for Water Lines

The main chemical components of C44300 copper tubing include copper (Cu), zinc (Zn), tin (Sn), and trace amounts of arsenic (As). Its specific chemical composition is as follows:

Copper (Cu): Approximately 69.0%–71.0%

Zinc (Zn): The balance forms a solid solution with copper, enhancing the alloy's strength.

Tin (Sn): 0.8%–1.3% (some say 0.8%–1.2%), improving corrosion resistance.

Arsenic (As): A trace amount, typically approximately 0.03%–0.06%, further inhibiting dezincification corrosion and improving corrosion resistance.

In addition, based on research and production practice, adding trace amounts of elements such as boron and nickel to C44300 can further enhance its corrosion resistance.

 

Performance Characteristics of ASTM B111 C44300 Copper Supply Line

High Corrosion Resistance: C44300 copper pipe exhibits high corrosion resistance in a variety of environments, including air, steam, oil, and seawater. The addition of trace amounts of arsenic significantly inhibits dezincification corrosion, thereby enhancing its corrosion resistance.

Excellent Mechanical Properties: C44300 copper tubing offers excellent tensile strength and elongation, capable of meeting various mechanical load requirements.

Easy Processing: C44300 copper tubing is easily processed in both hot and cold presses, such as forging, casting, and cold drawing. It is also easily welded and soldered.

Wide Applications: Due to its excellent properties, C44300 copper tubing is widely used in the manufacture of various valves, pumps, pipes, seawater coolers, and corrosion-resistant parts on ocean-going vessels.

 

Applications of ASTM B111 C44300 Thin Wall Copper Tubing

Shipbuilding: C44300 copper tubing is often used in the manufacture of key components such as seawater cooling systems and fire protection systems in shipbuilding due to its excellent resistance to seawater corrosion.

Chemical Equipment: In the chemical industry, C44300 copper tubing is used to manufacture various corrosion-resistant pipes and containers, capable of withstanding the erosion of various corrosive media.

Thermal Power Plants: Due to its high strength and corrosion resistance, C44300 copper tube is often used in thermal power plants to manufacture key components such as heat exchanger condenser tubes, ensuring stable equipment operation.

Other Applications: C44300 copper tube can also be used to manufacture various stress-bearing parts manufactured through deep drawing and bending, such as pins, rivets, washers, and nuts.

 

Precautions

Stress Relief: C44300 copper tube may develop stress after cold working, so low-temperature annealing is required to prevent stress corrosion cracking.

Impurity Control: During the manufacturing process, impurity levels must be strictly controlled to ensure the excellent performance of C44300 copper tube.

why choose us
 
copper water supply line

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. 

 

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. 

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