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 PROCEDURES:
TYPE: BUILDUP - ARC (FeMn A-Class 3)
On heavy sections, preheat 200- 300F. Hold a
short to medium arc and use a stringer or weaving
NSN: 9GD 3439-00-752-7818 (3/16X 14)
technique. Do not allow excessive heat buildup in
base metal. On large buildup, deposit succeeding
POSITION: All
layers across previous layer to minimize peeling.
POLARITY: AC-DC Straight or Reverse
CHARACTERISTICS: Deposits are machinable.
RECOMMENDED AMPERAGES:
Hardness: RC30
3/16 -135 to 175
USES:
Primary: On ferrous (steel) parts subject to heavy
shock loading and pounding. On hammers, sprockets,
rollers, tractor parts, excavator equipment, etc.
Excellent for heavy padding when high toughness and
resistance to deformation is needed.
(NOTE: DO NOT USE AS A BUILDUP ON
MANGANESE STEEL.)
Secondary: Can be used to join steel if steel rod is
NOT available.
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