The silver solder rods provide superior wettability, reduced brazing time, and improved mechanical strength. With a solidus temperature of 1193°F (645°C) and liquidus of 1472°F (800°C), they , strong joints Each set includes 40 sticks (0.050" x 1/8" x 10"), offering ample supply for air conditioners, refrigerators, and cold storage systems. These copper brazing rods are compatible with most HVAC units :These 15% silver brazing rods are made from high-purity BCuP-5 alloy for enhanced performance and safety. Ideal for precise HVAC applications, they provide reliable joints and smooth characteristics These welding rods require clean, oxide-free surfaces for optimal bonding. Ideal for professional use in HVAC maintenance, refrigeration repair, and copper pipe replacemen These welding rods require clean, oxide-free surfaces for optimal bonding. Ideal for professional use in HVAC maintenance, refrigeration repair, and copper pipe replacemen, Weight: 0.76720867176 pounds, Manufacturer: NONDK