MIL-DTL-32505
APPENDIX A
A3.5 Base Metal- Ballistic Welds. Material conforming to this specification is permitted for
critical welds (paragraph 10.2 of 19207-12472301).
A.3.6 Ballistic Shock (Weldments) test. Testing shall be in accordance with TACOM Drawing
19207-12472301, Ground Combat Vehicle Welding Code -- Aluminum, Section 10, except that
nothing in that drawing shall be construed to supersede or invalidate the requirements of this
specification.
A.3.6.1 Striking Velocities.
A.3.6.1.1 Flat Weldments (Butt joints). Striking velocities and proofing projectile shall be
chosen from table A-I based on the alloy and thickness of the plate to be impacted. Striking
velocities on thicknesses not covered by these tables shall be as agreed upon in the contract or
purchase order (see 6.2).
A.3.6.2 Number of Impacts. One fair impact shall be required on the welded butt joint. Should
a second round be required, the procedure specified in the TACOM Drawing 19207-12472301
shall be followed.
TABLE A-I. Minimum required striking velocities for Flat Weldments (Butt joints)
ORDERED
Plate Proofing
THICKNESS
Class I (AA7017)
Class II (AA7020)
Projectile
(Inches)
75-mm Aluminum,
1/
1.000
925 fps
TBD
M1002A
75-mm Aluminum,
1/
1.500
1130 fps
TBD
M1002A
1/
To be determined
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