Postalloy® DuraHard™ 2898-MCG

Abrasion resistant Postalloy® DuraHard™ 2898-MCG is a general purpose self-hardening overlay with a good combination of resistance to abrasion and impact. DuraHard™ 2898-MCG is very tough with excellent resistance to chipping and spalling. Deposits will retain their hardness and maintain a good cutting edge up to 1100°F (593°C). For maximum impact resistance and to avoid cracking in multi-layer deposits, a preheat of 550°F (288°C) is recommended. Use to overlay carbon, low alloy steel and manganese steel.

Specifications

Product Type

  • Wire
  • Metal-cored
  • Gas-shielded

Applications

  • Hot shear blades
  • Dozer blades
  • Bucket teeth
  • Farm Implements
  • Tamper feet
  • Shearing and piercing dies

Weld Deposit Properties

Additional:
Deposit Thickness:
Unlimited layers with proper procedures, including preheat and interpass temperature
Heat Resistance:
Deposits will retain their hardness and maintain a good cutting edge up to 1100°F (593°C).
Machinable:
Non-machinable
Hardness:
55Rc - 59Rc

Welding Parameters

Current Type : DC Electrode Positive

Volts Amps Short Arc Stick Out
15-21 70-190 .035" (0.9mm) 1/2"(12mm)
15-21 90-120 .045" (1.1mm) 5/8"(15mm)
18-21 150-220 1/16" (1.6mm) 3/4"(19m150-220m)
Volts Amps Spray Arc Stick Out
20-27 230-300 035" (0.9mm) 1/2"(12mm)
27-30 250-325 045" (1.1mm) 5/8"(15mm)
27-30 300-375 1/16" (1.6mm) 3/4"(19m150-220m)

Welding Procedure:

Product Equivalent:

Electrode: Postalloy® 21,

Wire: Postalloy® DuraHard™ 2898-FCO

Packaging Options

Diameter Standard Packaging
.035" (0.9mm) 25 lb (11.30kg) spool
.045" (1.1mm) 25 lb (11.30kg) spool 55 lb (50kg) coil, 220 lb (99.80kg) drum
1/16" (1.6mm) 25 lb (11.30kg) spool 55 lb (50kg) coil, 220 lb (99.80kg) drum