MIL-DTL-13080E
print shall stand out in contrast to the color of the electrode covering and printed designations shall
be readable under normal lighting conditions.
3.4.8.3 Designations. Printed type designations shall remain readily discernible on electrodes
baked at temperatures up to 850°F (454°C) 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 Chemical composition.
3.5.1 Weld metal. The chemical composition of the deposited weld metal shall conform to the
requirements shown in table III (see 4.6.3).
TABLE III. Chemical composition of deposited weld metal (percent).
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Type
Carbon Manganese Silicon Chromium Nickel Molybdenum Sulfur Phosphorus
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MIL-307
0.07-
3.30-
0.80
18.00-
9.00-
0.50-
0.03
0.04
0.17
4.75
max.
21.50
10.70
1.50
max.
max.
MIL-308
0.07-
1.25-
0.80
18.00-
9.00-
1.85-
0.03
0.04
0.17
2.25
max.
21.50
10.70
2.25
max.
max.
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3.6 Core wire tolerances.
3.6.1 Length. The length of any electrode shall not vary by more than 1/8 in. (3.18 mm) from the
length specified in the contract.
3.6.2 Diameter. The diameter of the core wire shall not vary from the nominal diameter by more
than 0.003 in. (0.08 mm).
3.7 Mechanical properties. Mechanical properties for the weld metal shall be in accordance with
table IV.
TABLE IV. Mechanical properties.
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Elongation in 2 in.
Ultimate tensile
(50.8 mm) (trans-
strength: psi (kPa),
verse specimen),
Diameter: in. (mm)
minimum
percent, minimum
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5/32, 3/16, 7/32, 1/4
85,000
7
(4.0, 4.8, 5.6, 6.4)
(586,000)
5/16, 3/8 (8.0, 9.5)
85,000
10
(586,000)
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3.8 Deposit patterns. Electrodes shall be capable of depositing all types of welds in the positions
specified in table IB.
5
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