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Mil-Arc 56

For joining and build up of abrasion resistant steels including: austenitic manganese, carbon, and low alloy. Machinable.

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  • High deposit electrode
  • Easy strike and restrike
  • Excellent corrosion resistance
  • Low spatter and fuming
  • High profile bead
  • Work-Hardens yet ductile
  • Good underlayment
  • Spray-transfer arc
  • Ultra smooth / machinable weld
  • Crack resistant under impact


  • Reduce weld time
  • Less stub / electrode loss
  • Extended weld life, does not rust
  • Good weldor appeal
  • Excellent visability of weld formation
  • Welds wear-resistant steels without cracking
  • Can hardface over deposit
  • Reduces base-metal heat buildup
  • Can be machined with carbide tooling
  • Withstands the most severe impact conditions


Mil-Arc 56 is an excellent joining and buildup alloy for fabricating and maintaining wear-resistant steels in the earth-moving and heavy manufacturing industries. The high alloyed flux permits welding in a flat and horizontal position. The deposit hardness is 12 to 14 RC with 40% elongation and it rapidly work-hardens up to 45 RC. Mil-Arc 56 can weld dissimilar combinations of steels such as AR plate, T-1, and other carbon steels. Mil-Arc 56 can also join stainless, austenitic manganese, and EVERWEAR wear plate to other steels. Other applications include bucket teeth, hammers, grousers, grisly bars, crusher: jaws, cones, and liners; and almost any application that suffers the effects of high impact. Multiple passes of Mil-Arc 56 will buildup fast and the deposits will not wash-down. Mil-Arc 56 is an excellent underlayment prior to hardfacing with Mil-Arc 13. When a continuous wire is needed, use Mil-Mig 516 with Mil-Mig 113.


Use Mil-Prep gouging and chamfering electrode to remove fatigued metal. Grind away any carbon deposits. Bevel heavy sections. While using Mil-Arc 56, Maintain a short arc gap and use stringer beads. You should keep amperage as low as possible that will maintain a smooth, consistent arc. When welding on 11%-14% manganese steel, do not exceed 600 F interpass temperature. Pause and quench with water or air until under the interpass temperature.


Tensile strength: up to 106,000 psi
Deposit Hardness: 12-14 RC
Work-Hardens: up to 45 RC
Heat/Scale resistance: up to 1000 F
Current and Polarity: AC/DCEP (+)
Part #DiameterAmperage
SMAW Steels

Millennium Industrial Corporation
Export, PA 15632

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