MIL-DTL-24403/1F(SH)
TABLE III. Permissible hydrogen levels in welds made with flux cored electrodes.
Hydrogen
Hydrogen
Electrode (MIL-type)
Maximum average value
Maximum single value
(mL/100 g weld metal)
(mL/100 g weld metal)
MIL-70T-1, MIL-70T-5,
MIL-70T-6, MIL-70T-8,
MIL-71T-1, MIL-71T-1A,
10.0
12.0
MIL-71T-8, MIL-71T-8A,
MIL-71T8-K6, MIL-71T8-Nil
MIL-80T1-Ni1, MIL-80T1-Ni2,
10.0
12.0
MIL-81T1-Ni1, MIL-81T1-Ni2
MIL-71T-1-HYR,
MIL-71T-1-HYN,
8.0
8.8
MIL-71T-1-HYD
MIL-7XT-X-HY,
MIL-7XTX-X-HY,
5.0
5.8
MIL-8XTX-X-HY
MIL-7XT-X-HZ,
MIL-7XTX-X-HZ,
2.0
2.3
MIL-8XTX-X-HZ
3.7 Alloy identity. For lots specified in MIL-E-24403, each end of the rod or strip to be spliced during
processing shall be sampled at the splicing station for alloy identity (see 4.4), except when splicing is done to repair
a break without removing the strip from the process line. The sample shall be tested for alloy identity prior to
shipment of the lot.
3.7.1 Coil. Both ends of each coil rolled to the final thickness shall be tested for alloy identity before further
processing into electrodes (see 4.4).
3.7.2 Testing of finished electrode and final marking. When specified (see 6.2), each electrode shall be tested
for alloy identity in accordance with 4.4 after final marking. Identification marking of each spool, coil, or container
of electrodes tested after final marking and meeting the acceptance criteria shall include the words "ALLOY
TESTED" (see 4.4.2).
3.8 Recycled, recovered, or environmentally preferable materials. Recycled, recovered, or environmentally
preferable materials should be used to the maximum extent possible, provided that the material meets or exceeds the
operational and maintenance requirements, and promotes economically advantageous life cycle costs.
3.9 Instrumentation. Instrument calibration records shall be traceable to calibration performed as specified in
NCSL Z540.1 or equivalent standard.
4. VERIFICATION
4.1 Classification of inspections. The inspection requirements specified herein are classified as follows:
a.
Qualification inspection (see 4.2).
b.
Conformance inspection (see 4.3).
4.2 Qualification inspection. Qualification inspection shall be performed on electrodes and shall include the
examinations and tests identified in Table IV.
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