copper phosphorus brazing alloys are specialized materials that are used in brazing, comprising copper and various amounts of phosphorus. These alloys exhibit high brazing performance with the deoxidizing action of Phosphorus to minimize oxide formations during the process. Copper-phosphor solder is a binary alloy containing copper and phosphorus as its base metal. It has good fluidity, which makes it an appropriate choice for contact brazing, flame brazing, high-frequency brazing and furnace brazing. Adding silver to the phosphorous copper alloy raises solder wetting capacity, increases strength and toughness while reducing melting point temperature. That’s why this material is widely used in refrigeration industry as well as in motor, electrical appliance, instrument and other manufacturing industries. The use of brass for gas welding differs from the previous one since it applies to oxy-acetylene welding process only.If you need more information about these materials and their applications refer to China Phosphorous Copper Welding Rod Manufacturer.
| BrazingAlloys | AWS | Chemical Composition（%） | Solidus | Liquidus | Main Uses | |||||||
| Ag | Cu | P | Zn | Sn | Other | F | ℃ | F | ℃ | |||
| BCu93P | BCuP-2 | / | 93 | 7 | / | / | / | 1310 | 710 | 1460 | 795 | Suitable for copper and copper alloy,with good fluidity. |
| BCu86P | / | / | 86 | 7 | / | 7 | / | 1134 | 657 | 1270 | 687 | Mainly used for brazing of hard alloy cutter |
| BCu91PAg | BCuP-6 | 2 | 91 | 7 | / | / | / | 1190 | 645 | 1450 | 785 | Mainly used for brazing ferrous metals, nickel-based alloys and Cu-Ni alloys; it has good fluidity. |
| BCu89PAg | BCuP-3 | 5 | 89 | 6 | / | / | / | 1190 | 645 | 1325 | 720 | |
| BCu88PAg | BCuP-4 | 6 | 86.7 | 7.3 | / | / | / | 1190 | 645 | 1275 | 690 | |
| BCu80PAg | BCuP-5 | 15 | 80 | 5 | / | / | / | 1190 | 645 | 1300 | 705 | |
| BCu75PAg | BCuP-6 | 18 | 75.5 | 6.5 | / | / | / | 1190 | 645 | 1190 | 645 | |
Excellent Capabilities for Brazing: Good fluidity is exhibited by these alloys and are effective in joining copper as well as its alloys.
Deoxidizing Agent: In the alloy, phosphorus reduces oxide formation when brazing.
Lower Melting Point: The addition of phosphorus reduces the melting point thus making the brazing process more cost-effective.
Enhanced Wetting Ability: Wetting ability is further improved by silver addition to the phosphor bronze alloy, as well as strength and toughness.
Versatility: Contact brazing, flame brazing, high frequency brazing and furnace brazing are different methods that can be used for this material during brazing operations.
Wide Application: It is widely used in refrigeration industry; motor manufacturing; electrical appliances; instrumentation among other industries in manufacturing sector.
Phosphorus copper solder has a wide range of applications and is commonly used in ordinary flame welding. It is mainly used in the refrigeration, air conditioning, plumbing and electrical industries. We can produce all kinds of formulas, and can also cooperate with R&D and customization to reduce costs and increase efficiency for your production. Specifically Please contact the technical department if required.
Yes, copper phosphorus brazing alloys are very versatile and can be used for contact brazing, flame brazing, high frequency brazing, and furnace brazing, depending on the specific requirements of the application.
The addition of silver improves the wetting ability of the solder, increases strength and toughness, and lowers the melting point, which improves performance in brazing applications.
Yes, these alloys have good corrosion resistance, which is beneficial for applications exposed to harsh environments.
The phosphorus content in the alloy acts as a deoxidizer, reducing the need for additional flux during the brazing process, thereby simplifying the process and reducing costs.
For detailed specifications, usage guidelines, and technical support, consider consulting a Chinese phosphorus copper welding rod manufacturer. They can provide comprehensive information for specific brazing requirements.
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