较早SAE标准和较早SAE Ex-钢

[中文适用范围]： 本 SAE 信息报告提供了因使用量减少而已从标准 SAE 手册列表中删除的 SAE 钢的列表。其中包括自 1936 年以来删除的 SAE J778 中的合金钢、自 1952 年以来删除的 SAE J118 中的碳钢以及 SAE J1081 中删除的所有防爆钢。可以根据要求从 SAE 办公室获取这些日期之前有关 SAE 钢材的信息。随着本报告的发布，SAE J778（前标准 SAE 合金钢）和 SAE J118（前标准 SAE 碳钢）将退役，因为它们现已合并在 SAE J1249 中。将来，SAE J1081（SAE 实验钢的化学成分）的新分配将采用 PS（潜在标准）编号，而不是 EX 编号。 [外文原描述]： This SAE Information Report provides a list of those SAE steels which, because of decreased usage, have been deleted from the standard SAE Handbook listings. Included are alloy steels from SAE J778 deleted since 1936, carbon steels from SAE J118 deleted since 1952, and all EX-steels deleted from SAE J1081. Information concerning SAE steels prior to these dates may be obtained from the SAE office on request. With the issuance of this report, SAE J778, Formerly Standard SAE Alloy Steels, and SAE J118, Formerly Standard SAE Carbon Steels, will be retired since they are now combined in SAE J1249. In the future, new assignments to SAE J1081, Chemical Compositions of SAE Experimental Steels, will be given “PS” (Potential Standard) numbers rather than “EX” numbers. The steels listed in Tables 1 and 2 are no longer considered as standard steels. Producers should be contacted concerning availability. Steel grades can be reinstated based on usage according to the critieria indicated in SAE J403 and J404. The last column lists the date a steel was last listed as standard in the SAE Handbook. Where applicable, the corresponding AISI and UNS numbers are given.