MIL-DTL-46192C(MR)
4.3.2 Conformance (acceptance) inspection.
Lot acceptance inspection shall
consist of the following:
(a)
Chemical analysis (see 3.2 and 4.7.1).
(b)
Mechanical properties (see 3.3 and 4.7.2).
(c)
Ballistic tests (see 3.4, 4.7.4 and Appendix A).
(d)
Dimensions and tolerances (see 3.7 and 4.8.1).
(e)
Identification marking (see 3.8 and 4.8.2).
(f)
Workmanship (see 3.9 and 4.8.2).
(g)
Preparation for shipment (see section 5 and 4.8.3).
4.4 Lot. For rolled plate a lot shall consist of plate of the same ordered
thickness and temper submitted for inspection as a unit, provided that the
weight of the finished plate in the lot does not exceed 50,000 pounds.
4.5 Sampling.
4.5.1 First article testing. At least three samples shall be submitted for
ballistic and mechanical testing. If the sample size is too small for removal
of tensile test specimens from the ballistic sample, three additional samples
shall be furnished.
4.5.1.1 Chemical composition. Samples for chemical analysis shall be
removed from each plate selected for ballistic testing.
4.5.1.2 Mechanical properties. A tensile test specimen for first article tests
shall be removed from the same plate material that has been selected for the
ballistic test. The location and type specimen shall be specified in 4.7.2.
4.5.1.3 Stress corrosion. Stress corrosion test specimens shall be removed
from the same plate selected for the ballistic test. The type of specimens
shall be as specified in 4.7.3.
4.5.1.4 Ballistic tests. Two plates, 12 by 36 inches (+1,- 0 inches) by the
ordered thickness, shall be submitted for ballistic testing as agreed between
the manufacturing and the procuring activity. The orientation of these plates
with respect to the rolling direction shall be at the option of the
manufacturer. The first article ballistic test may be waived at the discretion
of the procuring activity, provided that the manufacturer has produced
acceptable plate within + 0.250 inch of the ordered thickness within 18 months
and that the test conditions are the same as for previously accepted plate.
4.5.2
Acceptance tests.
4.5.2.1
Chemical composition.
(a) Ladle analysis. At least one sample shall have been 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.
(b) Check analysis. When sampling has not been made in accordance with
4.5.2.1(a), one sample shall be taken for each 4,000 pounds or less in each lot
in accordance with methods specified in 4.7.1.
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