New AMS-B-20148B, dated 5/24/2011, is titled “Brazing Sheet, Aluminum Alloy.” It covers aluminum alloy brazing sheet for use in brazed aluminum joints. The document is another standard that migrated from a military specification to an industry standard in the late-1990’s.
The document was originally released as MIL-B-20148 in 1951. It was cancelled at the Revision D level in 1998 and was replaced by the AMS-B-20148 at that time. Since then, the AMS version has undergone two revisions, with the Revision B being the latest.
There are no relevant Alloy or UNS numbers for this particular standard.
The new revision recognizes technical equivalency for two recently published specifications; brazing sheet #23-F is superseded by AMS-4465, brazing sheet #24-F is superseded by AMS-4460.
Additionally, paragraph 3.1 provides the complete list of superseding requirements applicable to #11-0, #12-0, #21-F, #22-F, #23-F, and #24-F.
AMS-B-20148B and all AMS Standards are available from Document Center Inc. You can also reach us by phone (650-591-7600), fax (650-591-7617) or email (info@document-center.com). These items are in stock for immediate processing.
