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

ANSI/ASME B16.25標準涵蓋了通過焊接連接到管道係統中的管道部件對接焊端的製備。

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).

ANSI/ASME B16.25標準涵蓋了通過焊接連接到管道係統中的管道部件對接焊端的製備。它包括焊接斜麵、厚壁部件的外部和內部成型以及內部端部製備的要求（包括尺寸和公差）。

Coverage includes preparation for joints with the following: no backing rings; split or noncontinuous backing rings; solid or continuous backing rings; consumable insert rings; gas tungsten arc welding (GTAW) of the root pass.

覆蓋範圍包括以下接縫的準備：無墊環；分裂或不連續的墊環；實心或連續的墊環；可消耗的插入環；根部焊道的氣體保護鎢極電弧焊（GTAW）。

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

ANSI/ASME B16.25標準涵蓋了通過焊接連接到管道係統中的管道部件對接焊端的製備。

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

它包括焊接斜麵、厚壁部件的外部和內部成型以及內部端部製備的要求（包括尺寸和公差）。

Coverage includes preparation for joints with the following:覆蓋範圍包括以下接縫準備：

(a) no backing rings無墊環

(b) split or noncontinuous backing rings分裂或不連續的墊環

(c) solid or continuous backing rings實心或連續墊環

(d) consumable insert rings易損插入環

(e) gas tungsten arc welding (GTAW) of the root pass Details of preparation for any backing ring must be specified when ordering the component.

(e) 根部焊道的氣體保護鎢極電弧焊（GTAW）訂購組件時，必須指定任何墊環的準備細節。

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.

ANSI/ASME B16.25標準適用於焊接工藝合格的任何金屬材料，但沒有規定具體的焊接工藝或程序。

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

除非買方另有規定，否則不適用符合ASME B16.5、B16.9或B16.47的拖纜端。

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.

ANSI/ASME B16.25標準適用於焊接工藝合格的任何金屬材料，但沒有規定具體的焊接工藝或程序。

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

除非買方另有規定，否則不適用符合ASME B16.5、B16.9或B16.47的拖纜端。