Specifications
AWS A5.27 Class RBCuZn-D
AWS A5.8 Class RBCuZn-D
ASME SFA5.27 Class RBCuZn-D
ASME SFA5.8 class RBCuZn-D
QQ-R-571C, MIL-R-19631B Type RcuZn-D
QQ-B-650 (BcuZn-D)

Description
 Nickel Silver filler metal contains 10% nickel and is used primarily for brazing or oxy-acetylene welding of steel or cast iron where good color match is desirable. The weld deposits of   Nickel Silver have very high tensile strength, good ductility and excellent corrosion resistance. The weld deposits are machinable and work harden when put into service. For this reason Nickel Silver is commonly used for building-up or overlaying worn parts such as gear teeth, bearings and valve seats. It is also used in the matrix of tungsten carbide rods where it acts as a binder for the tungsten carbide particles. Excellent for tubular structures. A boric acid or borax flux is required. Preheating may be desired for some applications. A neutral or slightly oxidizing flame is recommended.

Chemical Composition
(%max., unless shown as range or min.)

(1) Cu value includes Ag.
(2) Ni value includes Co.
Note: Cu + Sum of Named Elements, 99.5% min.

Applicable Specifications

Common Fabrication Processes
Drawing, Hot Extrusion

Fabrication Properties

Physical Properties

Typical Uses