MIL-DTL-24403/1F(SH)
TABLE IV. Summary of tests required for qualification and conformance inspection.
MIL-type Electrode
Test Required
Test Procedures
Requirements
Visual and dimensional
MIL-E-24403
MIL-E-24403
Alloy identity
4.4 herein
3.7 herein
Chemical
MIL-E-24403
Table I herein
All
Hydrogen
4.5 herein
3.6 herein
Soundness
3.5 herein
All weld metal tension 1/
AWS B4.0 3/
Table II herein
Impact 2/
AWS B4.0 3/
Table II herein
Footnotes:
1/
Includes ultimate tensile strength, yield strength, and elongation. For qualification testing, specimens shall
be tested in the as-welded and stress-relieved conditions. For conformance inspection, the tensile test shall
be conducted for the as-welded condition only.
2/
For qualification testing, impact tests shall be conducted for the as-welded and stress-relieved conditions at
each temperature specified in Table II. For conformance inspection, impact tests shall be conducted in the
as-welded condition only and at the lower temperature specified in Table II for the MIL-type being
evaluated. When specified (see 6.2), impact tests shall also be conducted in the stress-relieved condition
and at the lower temperature specified in Table II for the MIL-type being evaluated.
3/
Welds shall be prepared in accordance with Figure 1 herein.
4.3 Conformance inspection. Conformance inspection shall include the examinations and tests identified in
Table IV.
4.3.1 Lot. A lot of electrodes shall be as specified in MIL-E-24403.
4.3.2 Sampling for conformance. Electrodes selected in accordance with MIL-E-24403 shall be used for tests
specified in Table IV.
4.4 Alloy identity.
4.4.1 Procedure. The alloy identity test method shall include chemical analysis, metal sorting devices, other
approved methods, or a combination of methods. The test methods shall be submitted for approval to NAVSEA.
4.4.2 Rejection criteria. If the test demonstrates that the material is not of the type specified, the material shall
be rejected.
4.5 Hydrogen. Diffusible hydrogen testing shall be conducted in accordance with AWS A4.3. The samples
shall be prepared at current levels (or wire feed speeds) that are at least 75 percent of the manufacturer's
recommended range for the electrode size being tested. Minimum acceptable current (or wire feed speed) levels
shall be calculated as follows: Min current = Min recommended + 0.75 (Max recommended - Min recommended).
For diameters less than 0.0625 inch, the contact tip-to-work distance (CTWD) shall be the manufacturer's
recommended minimum or 5/8 inch, whichever is less. For 0.0625-inch diameter electrodes, the CTWD shall be the
manufacturer's recommended minimum or 3/4 inch, whichever is less. For diameters greater than 0.0625 inch, the
CTWD shall be the manufacturer's recommended minimum or 1 inch, whichever is less.
4.6 Unsatisfactory test results. Retest shall be in accordance with the following.
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