Primarily used for the brazing of tungsten carbide to steel, this alloy also offers good wetting characteristics on stainless steel, tool steels and nickel alloys. the 3% nickel content provides good corrosion resistance.

#50N is a modification of #50N. It was originally introduced because of somewhat better corrosion resistance than Brazeit 50 for certain conditions, and is still used for such purposes. It has proven successful on many marine applications and for dairy equipment which must withstand strong cleaning solutions. The 3% nickel content of this alloy also improves its wetting of stainless steel and tungsten carbide tool tips. At the present time, the largest use of this brazing alloy is for attaching carbide cutting tips to tool shanks.


Melting Pt. 1170 ºF
632 ºC
Flow Pt. 1270 ºF
688 ºC
MBT1 1500
AWS A5.8 BAg-3
ASME 4771
AMS Grade V
QQ-B-654 Grade V
MIL-B-15395 Grade V
Preform Options Brazing Discs Brazing Rings Brazing Washers Cut-Offs
Resale Options Brazing Rod 
Brazing Strip 
Brazing Wire
Approx. Wire Length (BCuP/lb.) (BAg/Tr.oz) 260 in; 0.031 diameter 
29 in; 0.093 diameter
65 in; 0.062 diameter

Physical Constants

Solidus 1170 ºF
632 ºC
Liquidus 1270 ºF
688 ºC
Brazing Range 1270 to 1500 ºF
688 to 816 ºC
Specific Gravity 9.49
Density 5.02 T.oz./cu.in.
Electrical Conductivity 18 % IACS
Electrical Resistivity 9.58 Micro ohm-cm
Color Light Yellow


When melting, #50N passes from the solid state to a mushy or plastic range and progressively to a liquid. The largest portion of #50N melts in the upper section of its temperature range. Therefore, the alloy has a good body while in the plastic range and is suitable for building fillets or bridging large gaps. Late melting of the major portion of the alloy also helps minimize any separation of the solid and liquid portions by liquation during melting.

Universal alloy for the brazing of carbide tool assemblies. Nickel addition improves corrosion resistance in marine environment and caustic media.

Available Forms

Standard forms of #50N are brazing wire, brazing strip and brazing preforms.

Safety Information

#50N contains cadmium and therefore upon heating may produce toxic fumes. It is essential that adequate ventilation be provided so that personnel will not inhale gases and fumes while brazing. The operation and maintenance of brazing equipment of facility should conform to the provisions of American National Standard (ANSI) Z49.1, "Safety in Welding and Cutting." For further information refer to the Material Safety Data Sheet for #50N.


Download SDS Sheet

Bellman-Melcor distinguishes itself as a provider of premium quality brazing alloys at industry competitive prices. Our extensive inventory of brazing and soldering alloys ensures that in most cases your order can be available for immediate delivery.

Compare With

  • AMS: 4771
  • AWS: BAg-3
  • Lucas: Easy-Flo 3
  • PI: Silver Alloy 50Ni3
  • UNS: P07501


  • Brazing Temperature Range High: 1370 F / 743 C
  • Brazing Temperature Range Low: 1320 F / 716 C
  • Liquidus: 1270 F / 688 C
  • Solidus: 1170 F / 632 C



  • Ag: 50%
  • Cd: 16%
  • Zn: 15.5%
  • Cu: 15.5%
  • Ni: 3%

The information and recommendations contained in this publication have been provided without charge & compiled from sources believed to be reliable and to represent the best information available on the subject at the time of issue. No warranty, guarantee, or representation is made by the Prince and Izant Company, Inc. as to the absolute correctness or sufficiency of any representation contained in this and other publications; Prince and Izant Company, Inc. assumes no responsibility in connection therewith; nor can it be assumed that all acceptable safety measures are contained in this and other publications, or that other or additional measures may not be required under particular or exceptional conditions or circumstances. The company and product names referenced herein are for identification purposes only. All trademarks and registered trademarks are the property of their respective owners.

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