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    ASTM A358 TP304/304L不銹鋼管細致闡明

    關鍵詞:不銹鋼管,304不銹鋼管,tp304 來源:管理員 發布時間:2016-04-08

    ASTM A358 TP304/304L不銹鋼管細致闡明


    ASTM A358  TP304/304L不銹鋼管的一個規范


    包括5品種別的不銹鋼焊管  


    1.3.1 Class 1—Pipe shall be double welded by processes employing filler metal in all passes and shall be completely radiographed.   1類 鋼管采用一切焊道填充金屬的雙面焊,并完整經過射線檢查。  


    1.3.2 Class 2—Pipe shall be double welded by processes employing filler metal in all passes. No radiography is required.   2類  鋼管采用一切焊道填充金屬的雙面焊,不需求射線檢查。  1.3.3 Class 3—Pipe shall be single welded by processes employing filler metal in all passes and shall be completely radiographed.


    3類  鋼管采用一切焊道填充金屬單面焊,并完整經過射線檢查。  


    1.3.4 Class 4—Same as Class 3 except that the weld pass exposed to the inside pipe surface may be made without the addition of filler metal (see 6.2.2.1 and 6.2.2.2).  4類 和三類相同,只是焊道暴露于鋼管內壁,可能沒有填加填充金屬。  


    1.3.5 Class 5—Pipe shall be double welded by processes employing filler metal in all passes and shall be spot radiographed.  5類 鋼管采用一切焊道金屬填充的雙面焊,應停止缺陷射線檢測   1.4 Supplementary requirements covering provisions ranging from additional testing to formalized procedures for manufacturing practice are provided. Supplementary Requirements S1 through S6 are included as options to be specified when desired.  提供了補充請求,包括附加測試到消費理論的正軌程序等條款。作為細致闡明的選項,補充闡明S1-S6也包括在內。  1.5 The values stated in either inch-pound units or SI units are to be regarded separately as standard. Within the text, the SI units are shown in brackets. The values stated in each system are not exact equivalents; therefore, each system must be used independently of the other. Combining values from the two systems may result in nonconformance with the specification. The inch-pound units shall apply unless the ―M‖ designation of this specification is specified in the order.   本文中所述的值或以英寸磅為單位,或采用國際單位,應作為規范辨別看待。在本文中,國際單位在括號內表示。各系統所表示的數值不完整相等,所以每一系統必需區別于另一系統單獨運用。兩個系統的數值混在一同運用會招致標準的不分歧。應采用英寸磅單位,除非在次第上指定M為首選。


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