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Metal finishing Q&As since 1989
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What is QQ-N-290 Grade G
Can anyone tell me what FED-QQN-290 (replaced by AMSQQN290) , Class 1, Grade G represents. I cannot get through on the ASSIST web site. Need immediately. Many thanks!
Todd WestImporter - Sebastian, Florida, USA
2004
2004
QQ-N-290, Class 1, Grade G represents a 0.0002 inch (5 micron) nickel plating. It can be used for copper and copper-rich alloys (< 40% zinc).
QQ-N-290 is in fact still available from the ASSIST site, as are many other canceled specifications [just click on the document icon]. Download any of foreseeable use, since future availability is uncertain.
Ken Vlach [deceased]- Goleta, California
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Rest in peace, Ken. Thank you for your hard work which the finishing world, and we at finishing.com, continue to benefit from.
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