MIL-DTL-13080E
3.9 Fillet welds.
3.9.1 Soundness. Electrodes shall be capable of depositing single-pass fillets in the positions
specified in table IB. Each fillet shall have penetrated to or beyond the junction plate edges and shall
be free of slag inclusions and excessive porosity. Fillet welds shall conform to grade II of
MIL-HDBK-1264.
3.9.2 Convexity. The convexity of each fillet shall not exceed that shown on figure 2.
3.9.3 Undercut and overlap. Fillet welds shall be free from undercut and overlap.
3.10 Groove welds. As shown by radiographic examination, deposited weld metal in weldments
produced in accordance with 4.6.4 shall conform to grade II of MIL-HDBK-1264, except that
deposited weld metal in weldments produced in accordance with 4.6.4.5.2 shall conform to grade I
of MIL-HDBK-1264. In all weldments, defects within 1 in. (25.4 mm) of ends may be disregarded.
3.11 Root pass soundness. Electrodes shall be capable of meeting the requirements of the root
pass crack test specified in 4.6.6.
3.12 Workmanship. Electrodes shall be manufactured in accordance with high-grade commercial
practice. The electrodes shall be of uniform quality, clean, sound and smooth. The material shall be
free from scabs, scale, cracks, blisters, pock marks, bruises or other surface defects. The electrodes
shall be free from any substances or characteristics which would adversely affect the operation of the
electrodes or cause unsound weld metal.
4. VERIFICATION
4.1 Responsibility for inspection. Unless otherwise specified in the contract or purchase order, the
contractor is responsible for the performance of all inspection requirements (examinations and tests)
as specified herein. Except as otherwise specified in the contract or purchase order, the contractor
may use his own or any other facilities suitable for the performance of the inspection requirements
specified herein, unless disapproved by the Government. The Government reserves the right to
perform any of the inspections set forth in this specification where such inspections are deemed
necessary to ensure supplies and services conform to prescribed requirements.
4.2 Lot. A lot shall consist of all electrodes of the same heat or core wire chemical analysis, type,
and size, covered with the coating material from the same batch, and submitted at one time for
acceptance.
4.3 Classification of inspection. The examination and testing of electrodes shall be classified as
follows:
a. First article inspection (see 4.4).
b. Quality conformance inspection (see 4.5).
4.4 First article inspection. First article inspection shall consist of tests for all of the requirements
of this specification. In testing electrodes, the welder shall not use any unusual technique of
manipulating the electrode, any technique not commonly taught to, and proficiently used by, the
average welder who has been trained and qualified to use electrodes of the types covered by this
specification. The responsibility for performing first article inspection shall be as specified by the
procuring activity (see 6.2). If multiple lots are offered in a given shipment for which first
article inspection has been specified by the purchaser, only one lot shall be subject to the first article
inspection. The remaining lots shall be subject to quality conformance inspection only.
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