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QQZ325C Alive or Dead?

2003

Is QQz-325-C obsolete? Shouldn't we be using B633 instead?

Thank you,

Ron Werkheiser
- Stroudsburg, Pennsylvania, USA

2003

Ron, you are right: QQ-Z-325 was cancelled in March of 1982. The cancellation notice noted that there is a commercial standard covering the same material, ASTM B633 [affil. link] . You can find the cancellation notice on the ASSIST website, at http://assist2.daps.dla.mil/quicksearch/.

Lee Gearhart
metallurgist - E. Aurora, New York

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