修订公告191，1987年8月。（本修订版是WRC手册《钢的可焊性第四版》的一部分。）《钢的可焊性》一书中的“钢成分及建议的良好焊接一般需要的实践”表已经修订和更新，包括新的和修订的钢规范。这些规范由ASTM、AISI、SAE、ABS和API发布。一些规格已停止使用，但一些钢材已保留在表格中以供参考。上述五个规范机构列出的钢材包括1985年3月1日之前采用的所有钢材，这些钢材可以通过焊接制造。

Revised Bulletin 191, August 1987. (This revision is a part of the WRC book, "Weldability of Steels-Fourth Edition")The tables of "Steel Compositions with Suggested Practices Generally Required for Sound Welding" included in the book "Weldability of Steels" have been revised and updated to include new and revised specifications for steels. These specifications have been issued by ASTM, AISI, SAE, ABS, and API. Some specifications have been discontinued but some of the steels have been retained in the tables for reference purposes. Steels listed by the five specification agencies above include all of those adopted through March 1, 1985 which may be fabricated by welding.