Postalloy® Ultra-Shred 580

Postalloy® Ultra-Shred 580 is a non-cracking martensitic tool steel type alloy with numerous tightly packed carbides for excellent abrasion resistance under high impact. One layer deposits exhibit wear characteristics that would be expected from a chromium carbide hardfacing product. The alloy properties create a crack-free, fracture resistant cutting edge even under high heat conditions created by extreme friction.


Product Type

  • Wire
  • Metal-cored
  • Gas-shielded


  • Tire recycling knives
  • Cutting tools
  • Shear blades
  • Hot or cold trim dies

Weld Deposit Properties

Deposits are slag free
Must be ground
Deposit Thickness:
Unlimited with proper procedures
57Rc - 60Rc

Welding Parameters

Current Type: DC Electrode Positive

Volts Amps Diameter Stick Out
24-30 125-170 .045" (1.2mm) 3/4" - (19mm)
26-32 160-300 1/16" (1.6mm) 3/4"-1"(19-25mm)

Welding Procedure:

Gas: 98%/2% Ar/Ox; Preheat: 350-500 ºF (177-260 °C); Maximum Interpass: 700 ºF (371 ºC); Post Welding: Slow Cool

Packaging Options

Diameter Standard Packaging
.045" (1.2mm) 25 lb (11.30kgs) spool, 50 lb (22.70kgs) spool
1/16" (1.6mm) 25 lb (11.30kgs) spool, 50 lb (22.70kgs) spool