7
*Oil
Hardening AC or
DC Reverse Polarity Electrode All-State®
Oil Hardening Electrodes are recommended for repairing die units of the oil hardening
class, and may
be used for composite fabrication of units requiring oil hardening steel. Typical
applications: cold blanking, trimming
and forming dies, cold cutting and shearing, and where shrinking and deforming
during welding must be
held at a minimum. Properties
of Weld Metal Deposit
is sound and homogeneous. “As-welded” hardness is approximately 48-50
Rc; may be annealed and reheat-treated,
drawn or tempered to a wide range of desired hardness. Use on AISI types O-1,
O-2, O-7, 6F7 and
S-1. Heat Treatment
Anneal 1425°-1450°F (774°-788°C).
Harden 1425°-1475°F (774°-802°C). Quench in oil. Draw 250°-400°F
(121°-204°C).
Procedure Follow
recommended welding procedure on pages 2 and 3 and preheat carefully. Do not exceed
maximum draw- range
temperatures. When repairing cutting edges, weld in one direction to within a
short distance of the edge end.
Then weld in the opposite direction and overlap the first bead.
Postheating or Tempering
Temper to desired hardness or toughness
to withstand condition to which unit will be subjected. Diameters
and Recommended Amperages 3/32"
(2.4mm)—60-90 1/8"
(3.2mm)—75-125 5/32"
(4.0mm)—100-150
