AMS2434E results from a Five-Year Review and update of this specification with technical changes to Ordering Information, classification (1.3, 1.3.1, 1.3.2), stress relief treatment (3.1.2, 3.1.2.1, 3.1.2.2, 3.1.2.3), activating treatment (3.1.7), type 2 treatments (3.3.2, 3.3.2.1, 3.3.2.2, 3.3.2.3), thickness (3.4.1, 3.4.1.3), hydrogen embrittlement (3.4.5), solderabilty (3.4.6), acceptance tests (4.2.1), periodic tests (4.2.2), sampling for acceptance tests (Table 2), sampling for periodic tests (4.3.2), hydrogen embrittlement test and specimens (4.3.3.3) and adhesion test specimens (4.3.3.4).