ASME 第9卷里面P.NO中的P英文全拼是什么？

如题有人知道吗？我的英文水平有限，看不懂，有大虾能直接告知吗？

P-Numbers are assigned to base metals for the purpose of reducing the number
of welding and brazing procedure qualifications required.
P-Numbers are alphanumeric designations: accordingly, each P-Number shall be
considered a separate P-Number.
P-No. 中的 P 英文全拼是什么?
没有全拼，就是一个英文字母。

上网搜索了下，得到下面的这段话

We had a discussion on this at the ASME Section IX Subcommittee meeting a year or two ago. Dr. D'or Doty, who probably was the longest subcommittee member at that time said that the "P" originally designated materials approved for welded "pressure" applications.  The "S" numbers were developed sometime after P-Numbers and originally referred to materials approved by Code Cases for "structural" applications.  That description would no longer be correct today, as there are many S-number materials that are used for pressure applications, such as piping.

看了LZ的帖子，我只想说一句很好很强大！

66vincent 发表于 2013-5-26 18:44
看了LZ的帖子，我只想说一句很好很强大！

希望你怀着帮助他人的心回答问题

没有创意 发表于 2013-5-26 17:19
上网搜索了下，得到下面的这段话

We had a discussion on this at the ASME Section IX Subcommittee me ...

pressure，我的英文不是很好
谢谢

P-No.不是都被理解为材料的组号的意思了吗，那是P是pressure的话，有些说不通吧？

是指用于制造pressure压力容器的钢板plate 编号，不知说对了吗？

继续努力，希望论坛越来越好。加油