MIL-DTL-45225F(MR)
f.
Workmanship (see 3.9 and 4.6.1).
g.
Preparation for shipment (see 4.6.3 and section 5).
4.3.2.1 Chemical analyses records. When chemical analyses records are in
compliance with 4.5.2.1, certification to the alloy chemical limits of table I is
acceptable.
4.4 Lot. A lot shall consist of forgings of the same shape, alloy and
processing submitted for inspection as a unit, provided that the lot does not
exceed 25,000 pounds or 300 forgings, whichever is less.
4.5
Sampling.
4.5.1 First article testing. At least three sample forgings shall be submitted
for ballistic and mechanical testing. If the forging size is too small for
removal of tensile test specimens from the ballistic sample, three additional
forgings shall be furnished.
4.5.1.1 Chemical composition. For type I forgings, a certification of
compliance with the limits shown in table I shall be furnished with the test
forgings. For type II forgings, a certification of compliance with the chemical
composition limits stated in the contract shall be furnished with the test
forgings.
4.5.1.2 Mechanical properties. One longitudinal and one transverse tension test
specimen shall be removed from each forging. If size permits, this may be the
same forging that is used for ballistic tests. Location and type of specimens
shall be as specified in 4.7.4.
4.5.1.3 Ballistic tests. For each configuration that the manufacturer has under
contract, three or more forgings shall be submitted for ballistic tests. Prior
to submission of the forgings, the tester and the contractor will discuss, using
a drawing of the forgings, the ballistic test conditions; namely, forging
thickness, impact area and projectile type. The number of forgings, or forging
sections needed for first article ballistic acceptance testing will be
determined. Modifications, cutting, welding and bracketing will be determined as
needed for test mounting.
4.5.2
Acceptance tests.
4.5.2.1 Chemical compositions, ingot analysis. At least one sample shall be
taken from the molten metal representing one group of ingots poured as a unit
from the same source of molten metal. Complete ingot analysis records shall be
available to the government at the ingot producer's facility.
4.5.2.2 Chemical composition, finished product analysis. When sampling has not
been made in accordance with 4.5.2.1, one sample shall be taken for each 4,000
pounds or less in each lot in accordance with ASTM E34 and ASTM E716.
4.5.2.3 Mechanical properties. One forging for tension test shall be selected
from each lot. One longitudinal and one transverse tension test specimen shall
be removed from the forging. If size permits, this may be the same forging that
is used for ballistic tests.
4.5.2.4 Ballistic tests. From each lot, one forging shall be submitted for
ballistic test. (See paragraph 4.5.1.3 for supplementary information).
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