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MIL-E-22200/10 Revision C, June 27, 1994
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Includes all amendments and changes through Amendment 1, March 27, 2003
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This specification covers iron-powder, low-hydrogen types of covered electrodes for the fabrication and repair welding of low and medium carbon, high tensile, and higher-strength low-alloy steels for as-welded and stress-relieved application.

Iron-powder, low-hydrogen electrodes shall be furnished in the types, classes, and sizes shown in table I, as specified (see 6.2). Beneficial comments (recommendations, additions, deletions) and any pertinent data which may be of use in improving this document should be addressed to: Commander, SEA 03R42, Naval Sea Systems Command, 2531 Jefferson Davis Highway, Arlington, VA 22242-5160 by using the self-addressed Standardization Document Improvement Proposal (DD Form 1426) appearing at the end of this document or by letter. TABLE I. Types, classes, and sizes.
Types  1/ 2/    Class     Positions of      Sizes (diameter)
                                                          welding           3/ (inches)

                                                 1         All             3/32, 1/8, 5/32

        MIL-7018-M                               2     Horizontal fillets  3/16, 7/32, 1/4
                                                           and flat
                                                 3           Flat          5/16

                                                 1          All            3/32, 1/8, 5/32
        MIL-12018-M2                             2    Horizontal fillets   3/16, 7/32, 1/4
                                                         and flat

1/ Type classifications of electrodes shall be determined according
to the capability of the electrode to meet the tests specified herein, when
used in the positions of welding specified in table I and in section 4. An
electrode will be approved under one type classification and an electrode will
not be approved if it differs in type from that stated in the manufacturer's
request for test. The position description indicates the maximum size
qualified under the specification. However, reference should be made to the
Qualified Products List (QPL) for the selection of electrodes for all
positions of welding.

2/ The suffix RC added to the MIL type pertains to restriction of
the copper content (see 3.5). Requirements, tests, and acceptance criteria
remain otherwise unchanged.

3/ Electrodes of other sizes or for other positions may be tested
for qualification subject to NAVSEA approval.