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Postalloy®
285-MCG (formerly part 285-SPL)
Description
POSTALLOY® 285-MCG is a non-cracking high alloy austenitic manganese steel metal-cored, gas-shielded welding wire for joining, build-up or hardfacing.
  • Produces high-strength, crack-free deposits that are tough, ductile and work-harden rapidly.

  • The high yield strength reduces mushrooming from impact.

  • Unlike common manganese alloys, which should not be used for welding plain carbon steel.


  • POSTALLOY® 285-MCG can be used with full confidence to build-up or join manganese steels as well as manganese to carbon and low alloy steels.
    Specifications
    Product Type

    Wire: Metal-cored, gas-shielded.
    Deposits are slag-free.

    Electrode equivalent: POSTALLOY® 207
    Also available in a flux-cored open arc wire - POSTALLOY® 285-FCO


    Weld Deposit Properties
    Tensile Strength  
    135,000psi
    Yield Strength  
    90,000psi
    Elongation  
    30%
    Hardness as deposited  
    20Rc
    Work Hardens up to:  
    45-55Rc
    Deposits can be flamecut  
    Cannot be machined  

    Applications

    Welding manganese steel to itself
    Pulverizing hammers
    Railroad crossovers and frogs
    Clam shell buckets lips
    Crusher jaws

    Dragline and power shovel bucket lips and teeth
    Manganese cone and roll shells
    Sizing screens
    Hammer mill hammers
    Grizzly bars


    POSTALLOY® 285-MCG    Welding Parameters
     
    Current: DC Reverse Polarity
    Short Arc Amps Volts Gas Stick Out
    .045" (1.1mm) 90-20015-21Ar/CO21/2“(12mm)
    1/16" (1.6mm)150-220 18-21 Ar/CO23/4"(19mm)
    Spray Arc Amps Volts Gas Stick Out
    .045" (1.1mm) 200-32527-30Ar/Ox5/8"(15mm)
    1/16" (1.6mm)300-37527-30Ar/Ox3/4"(19mm)