Postalloy® 94

Postalloy® 94 is a bronze electrode that has the ability to join many types of base metals. Deposits are very tough and wear resistant, developing a tensile strength which will exceed most of the base metals it will be called upon to weld. Typical base metals are listed in the applications section below.

Frictional wear and corrosion resistance

  • The corrosion resistance is among the best of the copper alloys, providing good resistance to salt water and acids. Deposits work-harden in service and take on an exceptionally high polish.

Specifications

Product Type

  • Flux-coated Electrode

Applications

  • Brass
  • Brass to steel
  • Copper to steel
  • Copper to stainless
  • Bronze
  • Bronze to stainless
  • Bronze to cast iron
  • Tool steels
  • Cast iron
  • Carbon steel
  • Stainless steel
  • Bearings
  • Bushings
  • Guides
  • Impellers
  • Gear teeth and pulleys
  • Mixing arms
  • Non-sparking alloys
  • Paper mill rolls
  • Anti-scratch surfaces
  • Propellers
  • Valve bodies and seats

Weld Deposit Properties

Additional:
Also available as a semi-automatic GMA welding wire Postalloy® 94-SPL
Tensile strength:
100,000 psi
Elongation:
28%
Hardness as deposited:
150BHN
Work-hardens:
225BHN

Welding Parameters

Current Type : DC Electrode Positive

Amps Diameter
80-130 1/8" (3.2mm)

Welding Procedure:

Clean weld area. Vee out cracks with Postalloy® 250 gouging electrode. Heavy sections should be beveled. Preheat cast iron to about 400 °F (204 °C), heavy copper sections to about 1000 °F (538 °C), brass to about 600 °F (316 °C), and bronze to about 200 °F (93 °C). Strike and maintain a close arc. Hold electrode about 15° off the perpendicular in direction of travel. Chip and brush off slag between passes. Allow part to cool.

Packaging Options

Diameter Standard Packaging
1/8" (3.2mm) Resealable Plastic Box