SAE AMS 7882C:2020 free download

10-14-2020 comment

SAE AMS 7882C:2020 free download.The title of this standard is Tungsten Carbide-Cobalt Chrome Powder Agglomerated and Sintered.
AMS7882C prohibits unauthorized exceptions(3, 5), revises classification of tests(4.2) reports(4.5.1),and identification (5.1.3), and results from a Five-Year Review and update of this specification.
1. SCOPE
1.1 Form
This specification covers tungsten carbide-cobalt chrome in the form of powder.
1. 2 Application
2. APPLICABLE DOCUMENTS
The issue of the following documents in effect on the date of the purchase order forms a part of this specification to the extent specified herein. The supplier may work to a subsequent revision of a document unless a specific document issue is specified. When the referenced document has been cancelled and no superseding document has been specified, the last published issue of that document shall apply.
Particle size distribution shall be as shown in Tables 2 or 3. Each lot shall show the cumulative Table 2 volume percentages when measured by laser light scattering method in accordance with ASTM B822 or other method ermitted by the cognizant engineering organization. See 8.2. Alternatively, for Method 1, 2, or3 powder, each lot shall have the cumulative Table 3 weight percentages by sieve size using ASTM MNL32 as a guide or other metho permitted by the cognizant engineering organization. (Sieve size evaluation is not applicable to Method 4 powder).
Required distribution percentages vary by application method. See 8.3.

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