The Harris Products Group

Blockage® Brazing Alloys

Model: NP989

Mfr. Model No.: BK220R1

Colour, sizing or style depicted in some photos may not be exactly as described.
Please check your product description carefully before placing your order.

$57.70 / Each

  • Type: Phosphorus Tin Silicon Brazing Alloy
  • Chemical Composition: 86.9% Cu, 6.5% Sn
  • Specifications: AWS A5.8
  • Solidus: 1187° F
  • Liquidus: 1297° F
  • Bare Rod
  • Silicon brazing alloys offer significant advantages over phos/copper and silver/phos/copper (BCuP) brazing alloys
  • Outstanding ability to form a large shoulder or cap at the braze connection
  • Distinct, favourable colour changes in the finished braze alloy
  • Improved ductility over non-silver-bearing BCuP-2 braze alloys
  • Easily brazes brass and brass alloys without the addition of silver
  • Significantly reduces brazing temperatures compared to BCuP braze alloys
  • Choice of bare or flux-coated rod, 2 mm x 20 stick tube Typical Application -
  • For copper or brass. Reduced brazing temperature, visible braze alloys, easy joint inspection. Excellent for HVAC applications.