MIL-DTL-62013E(AT)
GENERAL MOTORS CORPORATION
GM 9540P
- Accelerated Corrosion Test.
(Copies of GM publications may be obtained from General Motors Corporation,
c/o Global Engineering, 15 Inverness Way, Englewood, CO 80112.)
2.4 Order of precedence. In the event of a conflict between the text of this document and
the references cited herein, the text of this document takes precedence. Nothing in this document,
however, supersedes applicable laws and regulations unless a specific exemption has been
obtained.
3. REQUIREMENTS
3.1 First article. When specified (see 6.2), a sample shall be subjected to first article
inspection in accordance with 4.2.
3.2 Materials. Materials used shall be in accordance with the manufacturer's material
specifications for full-tracked carriers. The materials shall be capable of meeting all the
operational and environmental requirements specified herein (see 4.5.1). Materials and special
treatments should be utilized to prevent corrosion and to resist harmful effects of dust, water and
fungi. Dissimilar metals shall not be used in intimate contact without protection from galvanic
corrosion. Asbestos, cadmium, and radioactive material will not be used in this item. Radioactive
material is defined by Title 10, Code of Federal Regulations (CFR), Parts 30 and 40, and other
radioactive material in which the specific activity is greater than 0.002 microcuries per gram or
the activity per item equals or exceeds 0.01 microcuries.
3.2.1 Corrosion protection. The vehicle shall be fabricated from compatible materials
providing corrosion protection and coating adherence equal to or exceeding that provided by hot
dip galvanized 1010 steel with a minimum coating thickness of 2 mils (50 micrometers) on steel
sheet less than 0.0625 inches (in.) thick, or 0.75 mil (19 micrometers) on pre-galvanized steel
sheet 0.0625 in. thick or less. A material sample shall be capable of meeting or exceeding the
corrosion resistance provided by a galvanized sample (as described above) when subjected to the
Mandrel Bend Test of ASTM D522, and followed by the Accelerated Corrosion Test of
GM 9540P Method B, 120 cycles (see 6.2).
3.2.2 Recycled, recovered, or environmentally preferable materials. Recycled, recovered,
or environmentally preferable materials should be used to the maximum extent possible provided
that the material meets or exceeds the operational and maintenance requirements, and promotes
economically advantageous life cycle costs.
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