MIL-DTL-32505
APPENDIX A
ARMOR PLATE, ALUMINUM, ALLOY 7017 WELDABLE and 7020 APPLIQUE
A.1 SCOPE
A.1.1 Scope. This appendix covers the minimum welding acceptable requirements (striking
velocities, etc.) of aluminum alloy armor plate, AA7017 (and AA7020 when the testing program
mentioned in 1.1 is completed) when welded and tested in accordance with the provisions
specified in the applicable contract. When the material specified by this specification is to be
used in a welded armor application the requirements for weldability should specify the Ground
Combat Vehicle Welding Code (GCVWC) - Aluminum 19207-12472301. In lieu of this
document (Welding Code) or a welding standard for armor and non-armor applications this
appendix and the information contained herein is intended for information only. Until the
Welding Code or a welding standard for armor and non-armor applications is updated or revised
the information contain herein should be referenced for compliance.
A.2 APPLICABLE DOCUMENTS
A.2.1 Government documents.
A.2.1.1 Other Government documents, drawings, and publications. The following other
Government documents, drawings, and publications form a part of this document to the extent
specified herein. Unless otherwise specified, the issues of these documents are those cited in the
solicitation or contract.
TACOM Drawing 19207-12472301
-
Ground Combat Vehicle Welding Code --
Aluminum, Section 10
(Copies of this document are available online at Ground Combat Vehicle Welding Code -
Aluminum, dated 6/03/2003 Drawing Number 12472301).
A.3 REQUIREMENTS
A.3.1 Base Material M Number. Alloys 7017 and 7020 shall be classified as M27 materials.
A3.2 Tensile Strength of Welded Aluminum Alloys (Table 5.1 of 19207-12472301). The
minimum tensile strength of 7017, Class I welds, shall be 46 ksi. The minimum tensile strength
of 7020, Class II welds, shall be TBD ksi.
A3.3 Base Metal Non Critical Welds. Material conforming to this specification is permitted
for non-critical welds (paragraph 8.2 of 19207-12472301).
A3.4 Base Metal - Critical Welds. Material conforming to this specification is permitted for
critical welds (paragraph 9.2 of 19207-12472301).
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