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BLUEFIRE 20 Sticks BCuP-3 1/2 lb 5% Silver Solder Copper Phosphor Brazing Welding Rods Silver Nitrate Sticks Brazing rods for Storage HVAC and Air Conditioning Refrigerator Copper Solder

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$35.99

$ 18 .99 $18.99

In Stock

1.PatternName:1/2 Lb Value Pack


  • 5% Silver Bearing Welding Rods:The Bluefire brazing alloys rods, classified as USA AWS A58 Class BCuP-3, are composed of 4.8-5.2% silver (Ag), 6.5-7.0% phosphor (P), and the rest copper (Cu). These silver solder rods are designed for optimal performance when used with Bluefire JFB-102S brazing flux. The inclusion of silver solder wire enhances copper solder applications by improving wettability and reducing melting temperatures, making these rods perfect for Copper Phosphor Brazing.
  • Valued Pack for Cost Efficiency:Each tube of Bluefire brazing rods contains 20 sticks, each 14" long, totaling 0.5 pounds in weight, offering great savings for projects requiring Silver Brazing. These Filler Brazing Rods are essential for professionals and DIY enthusiasts needing high-quality welding rods at an affordable price. The solder stick design provides excellent value, making it ideal for various applications, including Air Conditioning Refrigerators and Storage HVAC systems.
  • Superior Performance Characteristics:These brazing rods exhibit a solidus temperature of 1189°F (643°C) and a liquidus temperature of 1419°F (771°C), with a fluidity rating of 3. The recommended joint clearance of 0.003" to 0.006" ensures that the welding rod delivers superior performance, with the silver content significantly enhancing fluidity. This allows the copper solder to flow into small gaps, resulting in stronger, tougher joints and reducing brazing time.
  • All-Purpose Applications:Bluefire welding rods are a must-have for plumbing, HVAC, and mechanical repairs. They are ideal for gas welding of copper to copper, brass, and bronze joints, especially where small gaps and ample clearance are required. These brazing rods for copper hvac applications are specifically suitable for vibrating parts that demand high strength and shock resistance, such as compressors, air conditioners, refrigerators, and freezers.
  • High-Quality Manufacturing Standards:All Bluefire brazing alloys are manufactured under the highest quality control standards, ensuring reliable and consistent performance across applications. Whether used as a Copper Phosphorus Filler or for Phosphorus Filler Brazing, these high-quality solder rods deliver excellent results for both professional and DIY projects. The focus on quality makes them the preferred choice for those working with solder for copper pipe and other critical applications.


Product Description


Daryl Jernigan II
August 27, 2025
They work as advertised. Quality materials
muchlove4others
August 19, 2025
Good brazing rod. Worked as it should.
Ryan P
August 12, 2025
Seems the fulfillment center closest to me had mislabeled/classified some aluminum brazing rods as these. Was sent the wrong product twice.(had to return to amazon)I contacted bluefire directly and they were apologetic even though it probably wasn’t their fault and I just wanted to let them know. They sent me the 5% stay silv sticks I originally ordered arriving quickly !These 5% brazing sticks were great. Flowed very well. Will buy again! Hopefully by the time I need more amazon will have the right product labeled, or just order directly.BlueFire as a company and it’s products are phenomenal.
Luis
July 6, 2025
Excelente
JUAN
June 2, 2025
Perfect I liked them and work just perfect.
jerry
May 7, 2025
Price firendly for the 5% silver rods (20 rods / Half lb pack), while made with great quality. Since it contains silver so better to use some help for silver brazing flux (for me, I use the recommended Bluefire JFB-102S flux and the result is good!) I use Bluefire MRAS-8210 torch and these rods to welding the AC pipes, the performance is beyond my expectation! Melted within short time and the fluid went deep, made my project easily done and the final finish is perfectly strong. Oh, one more thing need to be noted, because these rods contains phosphor, so it cannot be used to welding iron and steel, however, perfectly working with the copper and brass parts.
Cullen Dean
March 11, 2025
Much shorter than the Harris sticks, but work well.
Marlon Guia
February 22, 2025
Excelente producto
renoupgrade
February 19, 2025
It is exactly what I ordered
david gray
January 15, 2025
Good enough but brittle for high load use