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MIL-E-22200G
Distance from grip
end to full thick-
ness of covering
Bare portion,
(max)
(min)
Electrode size
1-1/4 inches
5/32
inch
1/2 inch
and
smaller
1-1/2 inches
3/4 inch
3/16
inch
and
larger
Electrode identification.
3.5.10
3.5.10.1 Marking.  At least one legible electrode type designation or
classification number (see 3.1) shall be applied to the electrode covering in
such a manner that at least one complete type designation shall come within the
space 2-1/2 inches from the grip end of the electrode.  The prefix "MIL-" may be
omitted from the type designation.  When specified (see 3.1), each electrode
shall also be marked with heat or lot identification.
3.5.10.2 Size and legibility.  The imprinted designations shall be composed
of equal-size block characters, the height of which shall be 50 to 100 percent of
the overall electrode diameter (core wire plus covering) but need not exceed a
5/32 inch height.  The imprinted designations shall read from the grip-end to the
arc end.  The color of the print shall contrast the color of the electrode
covering and printed designations shall be readable under normal lighting
conditions.
3.5.10.3 Stability.
Printed type designations shall remain discernible on
electrodes rebaked at temperatures up to 850 degrees Fahrenheit
and on
unused portions of partially consumed electrodes or discarded stubs, and shall
resist effacement by contact incidental to normal handling, shipping and storing.
3.5.11 Covering composition.  The chemical composition of the coverings
except iron powder and moisture is optional with the manufacturer.  Moisture and
iron content, when required, shall be as specified (see 3.1, 4.6.8, and 4.6.9).
3.5.12 Production equipment.  When a change is made in a production run of
one MIL-type electrode to another, inspection shall be performed prior to start-
ing the new run to assure that equipment and process lines are purged of material
from the previous production run.  This inspection shall be performed for all
equipment used in manufacturing operations where the material is not segregated
and positively identified, for example cutting to length, extruding, baking and
so forth.
3.6 Core wires of electrodes.
3.6.1 Core wire dimensions.
Standard core wire diameters and lengths of
electrodes shall be as specified (see 3.1).  The diameter of the core wire shall
vary not more than plus or minus 0.003 inch.  The length shall vary not more than
plus or minus 1/8 inch.
5

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