MIL-STD-1501 Chromium Plating, Low Embrittlement, ElectrodepositionThis standard covers the engineering requirements for electrodeposition of hard chromium on high strength steel substrates and the properties of deposit. Subsequent heat treating techniques needed to insure low hydrogen embrittlement of steel is described.

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MIL-STD-1501F

of the material for 200 hours minimum and shall meet the requirements of paragraph

4.6. Failure of any one of the specimens shall constitute failure of the test, and

production shall cease until the cause of the failure is determined and the bath requalified. Acceptance of items completed after the last successfully completed

acceptance test shall be withheld until the extent and cause of the failure have been determined.

b. The test for embrittlement shall be conducted as often as deemed

necessary with a maximum interval of every ninety days. Prior to processing with a new bath, the bath must be qualified in accordance with paragraph 5.5.

5.7 Safety and health. This document specifies the use of certain materials, which have been listed in 29 CFR 1910 (OSHA Standards) as "Toxic and Hazardous Substances." Personnel exposure of these materials during the process must be limited to the values specified in applicable portions of the OSHA Standard 1910.1000.

6. NOTES

(This section contains information of a general or explanatory in nature that may be helpful, but is not mandatory.)

6.1 Intended use. This standard provides guidance on the procedures and processes for low embrittlement chromium electro-deposition for verification of the Air Force repair process on the landing gear of all aircrafts. It is an Air Force unique manufacturing standard that will be used only the Air Force at Hill Air Force Base.

6.2 Plating options. Chrome plating is applied for wear resistance, reconditioning worn or undersized parts, and such incidental corrosion protection as the specified thickness of the

deposit may afford. Where corrosion protection is desired, and undercoat of nickel 0.025 to

0.050 millimeters (0.001 to 0.002 inches) thickness is recommended. When not specified, Class

3 plating is preferred (see paragraph 1.2.1).

6.3 Subject term (key word) listing.

Chrome Corrosion Process control

6.4 Changes from previous issue. Marginal notations are not used in this revision to identify changes with respect to the previous issue due to the extent of the changes.