ASTM B111 C44500 Type L copper is a high-performance copper-based alloy, a specialty copper alloy also known as C44500 tin brass, which is a tin-containing copper brass.
Chemical Composition of ASTM B111 C44500 Type L Copper Tubing
| Element | Minimum (%) | Maximum (%) | Purpose / Effect |
|---|---|---|---|
| Copper (Cu) | 70.0 | 73.0 | Base Element. Provides fundamental corrosion resistance and formability. |
| Tin (Sn) | 0.8 | 1.2 | Increases strength and improves resistance to corrosion and dezincification. |
| Phosphorus (P) | 0.02 | 0.10 | Corrosion Inhibitor. Acts as a dezincification inhibitor (replaces Arsenic). Also acts as a deoxidizer during melting. |
| Lead (Pb) | - | 0.07 | Impurity limit. Improves machinability if present at higher levels in other alloys, but kept low here. |
| Iron (Fe) | - | 0.06 | Impurity limit. |
| Antimony (Sb) | - | 0.005 | Impurity limit. |
| Bismuth (Bi) | - | 0.002 | Impurity limit. |
| Zinc (Zn) | Balance | Primary alloying element. Lowers cost, increases strength. |
Performance Characteristics of ASTM B111 C44500 Copper Pipe for AC
Conductivity
C44500 copper alloy boasts a conductivity of up to 70% IACS, making it suitable for electrical and electronic applications such as terminal blocks, connectors, and relays.
Corrosion Resistance
The tin content of the alloy enhances its resistance to humid and corrosive environments, preventing damage from corrosion in environments such as seawater and hot water. It can operate under flowing seawater and is suitable for manufacturing ship parts, condenser tube sheets, and other applications.
Mechanical Properties
It exhibits good strength and toughness, with a tensile strength of 379 MPa and excellent fatigue resistance, making it suitable for high-stress applications. It also has good wear resistance, with tin increasing its hardness and wear resistance.
Workability of ASTM B111 C44500 copper pipe soldering
It is easily processed through various processes, including forging, extrusion, and welding, and has excellent workability and is easy to manufacture.
Applications of ASTM B111 C44500 annealed copper pipe
Due to its excellent properties, C44500 copper alloy has broad application prospects in a variety of fields, including the following:
Electrical and Electronics
It is used in circuit boards, electrical contacts and various electronic components, electrical switches, springs, terminals, spring washers, electronic connectors, condensers, etc.
Automotive
It is used in electronic components such as motor cables and switches.
Aerospace
It is used in aircraft electronic equipment and connectors.
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.
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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