国产人妖在线另类专区_午夜理日韩电影免费观看_麻豆成人在线观看视频_殴美性爱视频手机在线_丰满的大屁股一区二区_女人18片毛片60分钟630_日韩暖暖无码中文字幕视频_小草操第一次在线_99久久国产综合精品色男同_Julia中文字幕无码

QUALIFICATION DOCUMENTS
Adhering To The To Science And Technology As The Guide, Seek Levelopment By Innovation, Strives For The Survival By The Quality

ANSI/ASME B16.25

  • Categories:Product Information
  • Author:Zhongran
  • Source:Hebei Zhongran Pipeline Co., Ltd.
  • Updated:2020-09-12
  • Views:922

【Summary Description】

ANSI/ASME B16.25

【概要描述】

  • Categories:Product Information
  • Author:Zhongran
  • Source:Hebei Zhongran Pipeline Co., Ltd.
  • Updated:2020-09-12
  • Views:922
Details

ANSI/ASME B16.25, Buttwelding Ends

ANSI/ASME B16.25 Standard covers the preparation of butt welding ends of piping components to be joined into a piping system by welding.

It includes requirements forwelding bevels, for external and internal shaping of heavy-wall components, and for preparation of internal ends (including dimensions and tolerances).

Coverage includes preparation for joints with the following:
(a) no backing rings(b) split or noncontinuous backing rings(c) solid or continuous backing rings(d) consumable insert rings(e) gas tungsten arc welding (GTAW) of the root pass Details of preparation for any backing ring must be specified when ordering the component.

ANSI/ASME B16.25 Standard applies to any metallic materials for which a welding procedure can be satisfactorily qualified, but does not prescribe specific welding processes or procedures.

Unless otherwise specified by the purchaser, it does not apply towelding ends conforming to ASME B16.5, B16.9, or B16.47.

 

掃二維碼用手機(jī)看

中燃管道

Hebei Zhongran Pipefitting Co., Ltd.

Copyright:Hebei Zhongran Pipefitting Co., Ltd.