MIL-W-47091A (MI)
6.1 Intended use. Welding under this specification is intended for use in ground handling equipment for rockets and guided missiles and other applications where high grade commercial quality welding is required. As such, it does not come under the certification requirements of MIL-T-5021 and is not normally considered adequate for airborne structures or other applications where the highest degree of dependability with marginal design factors is of primary importance. Such certified welding is also separately covered in MIL-STD-2219.
6.2 Definition of steel grades. The three grades of steel mentioned herein are defined as follows:
a. Mild steel, AISI 1010 to AISI 1030 or other low carbon steels.
b. High strength mild steel, low carbon steel modified to increase tensile strength.
c. Low Alloy steel, heat treatable structural alloys such as AISI 4130, AISI
8630, etc., and distinguished from the high alloy, stainless and other special purpose steels.
6.3 Acquisition requirements. Acquisition documents must specify the following:
a. Title, number, and date of the specification
b. Issue of DODISS to be cited in the solicitation, and if required, the specific issue of individual documents referenced (see 2.1).
c. Types required (see 1.2 and 3.2).
6.4 Metrication. Metric equivalents in accordance with FED-STD-376 are acceptable for use in this specification.
6.5 Subject term (keyword) listing.
Aluminum alloys Electrodes and rods Magnesium alloys Weldments
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