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WARNING: This product can expose you to chemicals including Nitrogen Dioxide, which is known to the State of California to cause cancer, and Carbon monoxide, which is known to the State of California to cause birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

RADNOR™ 0.050" x 1/8" X 20" BCuP-3 Stay-Silv® Flat Phos-Copper Brazing Alloy Rod 0.350 lb 8 Pc Mini-Pak Tube (Prices are subject to change without notice due to raw materials cost volatility)

Airgas Part #:RAD64001758

Manufacturer Part #:64001758

$28.18 /Package
Package Size Options
$28.18 Package
$112.72 Box 4 Pack / Box

Item Details

  • Stay-Silv® 5 is useful primarily where fit-up cannot be tightly controlled. Stay-Silv® 5 is a medium melting range alloy.


  • Medium-range silver brazing alloy designed for brazing copper-to-copper - copper is self-fluxing.
  • Can braze copper to low-zinc brass using Stay-Silv® white brazing flux.
  • Economical alternative to higher silver content alloys for copper and brass applications.
  • Somewhat more ductile than Harris® 0 or Stay-Silv® 2.
  • Well suited where close fit-up cannot be maintained.
  • Its wide melting range allows penetration into tight clearances and provides ability to fill wider gaps.
  • Solidus: 1190°F (643°C)
  • Liquidus: 1494 -1506°F (812-819°C)
  • Fluidity Rating: 3
  • Electrical Conductivity: 9.6% IACS
  • Electrical Resistivity: 18.1 Microhm/cm
  • Specific Gravity: 8.14
  • Brazing Temp Range: 1320-1500°F (716-816°C)
  • Recommended Joint Clearance: 0.003-0.006"
  • Not recommended for brazing steel or other ferrous base metals.
  • Stay-Silv® 5 should not be used if braze is exposed to sulfur or sulfur compounds in service.
  • Made in USA


  • AWS A5.8 BCuP-3
  • ASME SFA 5.8 BCuP-3
  • ISO 17672 CuP 281


  • Copper-to-copper applications
  • Copper-to-low zinc brass with the use of brazing flux


  • Keep your head out of fumes
  • Use enough ventilation, exhaust at the arc, or both, to keep fumes and gases from your breathing zone and the general area
  • Wear correct eye, ear, and body protection
  • Do not touch live electrical parts

Product Attributes

Alloy Material

» 6% Phosphorus
» 89% Copper
» 5% Silver

AWS Classification

» BCuP-3


» 0.050" x 1/8"

Solder Type

» Flat Phos-Copper Brazing Alloy Rod

Trade Name

» Stay-Silv®


» 0.350 lb


» 20"


» 8 Pc Mini-Pak Tube