WELDING OPERATIONS I - OD1651 - LESSON 1/TASK 1
current (dc), straight polarity (sp), or reverse polarity (rp))
to be used with the pertinent electrode.
(e) A listing of the types of coatings, welding currents, and
polarity requirements of the fourth (or last) identifying digit
of the electrode is listed below.
(f) The number E6010 identifies an electric welding electrode
with a minimum stress relieved tensile strength of 60,000 psi
(pounds per square inch).
It can be used to weld in all
positions, preferably using direct current reverse polarity
However, alternating current and direct current
straight polarity can also be used.
(3) The electrode identification
system
for
stainless
steel
arc-welding is set up as follows:
(a) The symbol E indicates electric welding.
(b) The first three digits indicate the American Iron and Steel
Institute type of stainless steel.
(c) The last two digits indicate the current and the welding
position in which it is used.
(d) According to this system, the number E-308-16 identifies a
stainless steel electrode type 308, for use with alternating or
reverse polarity direct current in all welding positions.
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