17030 - Harris RBCuZn-D Nickel Silver Brazing Rod 1/16" - 50lb Box

Harris RBCuZn-D Nickel Silver Brazing Filler Metal

Elevate your brazing capabilities with the Harris Nickel Silver Brazing Rod, a high-performance filler metal classified as RBCuZn-D. This 1/16-inch rod, available in a cost-effective 50lb box, is formulated for welders and fabricators who require a brazing alloy with superior strength and excellent color match for steel and stainless steel applications. Despite its name, "Nickel Silver" contains no silver; it is a copper-zinc alloy fortified with nickel and silicon. This unique composition raises the melting point slightly compared to standard naval bronze but rewards the user with a deposit that is tough, wear-resistant, and highly capable of withstanding shock and vibration.

The metallurgy of this rod is designed to control fuming and porosity, common issues in oxy-fuel brazing. The silicon content acts as a deoxidizer, promoting a clean, sound deposit with minimal pinholes. When used with a high-quality brazing flux, the rod flows freely but can also be manipulated to bridge gaps, offering the welder excellent puddle control. This makes it suitable for both tight capillary joints and fillet welds where bead appearance and structural integrity are paramount. The deposit color is a silvery-white, which blends much better with steel and stainless steel base metals than the yellow brass color of standard low-fuming bronze rods, providing a more aesthetic finish for exposed joints.

Technical specifications include a solidus temperature of 1690°F and a liquidus of 1715°F, requiring a neutral or slightly oxidizing flame for optimal results. The high tensile strength (up to 70 ksi) ensures that joints are often stronger than the base metal itself. This rod is extensively used in the fabrication of carbide-tipped tools, where it provides a strong, shock-absorbing cushion for the carbide insert. It is also the preferred choice for repairing musical instruments, food processing equipment (where lead-free joints are required), and marine components due to its enhanced corrosion resistance over standard brasses.

Technical Benefits

• High Tensile Strength: Delivers joint strength comparable to mild steel welds, far exceeding standard bronze brazing.
• Corrosion Resistance: The nickel content provides superior resistance to corrosion, making it suitable for marine and chemical environments.
• Wear Resistance: The hard, tough deposit resists galling and friction wear, perfect for surfacing applications.
• Color Match: Silvery-white deposit matches steel and stainless steel for a professional, seamless look.