SAE AMS 2417K:2020 pdf free

SAE AMS 2417K:2020 pdf free.Plating, Zinc-Nickel Alloy
Composition (3.4.1) is a periodic test and shall be performed at least quarterly unless frequency of testing is specified by the cognizant engineering organization. Adhesion (3.4.3) is a periodic test that shall be performed no less than daily for each generic class of alloy as defined by AS2390 processed during that day. Corrosion resistance (white corrosion product only) (3.4.4.2 or 3.4.4.3) is a periodic test and shall be performed at least monthly unless frequency of testing is specified by the cognizant engineering organization. Corrosion resistance (red corrosion) (3.4.4.1, 3.4.4.2, or 3.4.4.3) is a periodic test and shall be performed at least annually unless frequency of test is specified by the cognizant engineering organization.Hydrogen embrittlement (3.4.5) is a periodic test and shall be performed at least once in each month that steel parts 36 HRC and over or threaded steel fasteners 34 HRC and over are plated unless frequency of testing is specified by the cognizant engineering organization. Strike thickness (3.4.2.2) and cleaning and plating solutions are periodic tests and shall be performed at a frequency established by the processor unless frequency of testing is specified by the cognizant engineering organization (see 4.3.2).
Test samples shall be randomly selected from all parts in the lot. A lot is a group of parts, all of the same part number,processed through the same chemical solutions in the same tanks under the same conditions, which have completed the chemical processing within a period of 24 hours of each other and are presented to inspection at the same time. Unless the cognizant engineering organization provides a sampling plan, the minimum number of samples shall be as shown in Table 1.
Sample quantity shall be two for corrosion resistance. For adhesion tests, four test specimens of each generic class of alloy,as defined by AS2390, that have been be processed through the same cleaning and plating operations as the parts that they represent. These adhesion test specimens shall be processed prior to the first production lot of parts or with the first production lot of parts. For hydrogen embritlement, sample size as specified in ASTM F519 unless otherwise specified by the cognizant engineering organization. Sample quantities for other tests shall be at the discretion of the processor unless otherwise specified by the cognizant engineering organization.SAE AMS 2417K pdf free download.