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About This Item

 

Full Description

1.1 This specification covers wrought stainless steel fittings for pressure piping applications.2

1.2 Several grades of austenitic stainless steel alloys are included in this specification Grades are designated with a prefix, WP or CR, based on the applicable ASME or MSS dimensional and rating standards, respectively.

1.3 For each of the WP stainless grades, several classes of fittings are covered, to indicate whether seamless or welded construction was utilized. Class designations are also utilized to indicate the nondestructive test method and extent of nondestructive examination (NDE). Table 1 is a general summary of the fitting classes applicable to all WP grades of stainless steel covered by this specification. There are no classes for the CR grades. Specific requirements are covered elsewhere.

1.4 This specification is expressed in both inch-pound units and in SI units. However, unless the order specifies the applicable “M” specification designation (SI units), the material shall be furnished to inch-pound units.

1.5 The values stated in either SI units or inch-pound units are to be regarded separately as standard. Within the text, the SI units are shown in brackets. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.

1.6 This specification does not apply to cast steel fittings. Austenitic stainless steel castings are covered in Specifications A351/A351M, A743/A743M, and A744/A744M.

1.7 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

 

Document History

  1. ASTM A403/A403M-19

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    Standard Specification for Wrought Austenitic Stainless Steel Piping Fittings

    • Most Recent
  2. ASTM A403/A403M-18a


    Standard Specification for Wrought Austenitic Stainless Steel Piping Fittings

    • Historical Version
  3. ASTM A403/A403M-18


    Standard Specification for Wrought Austenitic Stainless Steel Piping Fittings

    • Historical Version
  4. ASTM A403/A403M-16


    Standard Specification for Wrought Austenitic Stainless Steel Piping Fittings

    • Historical Version
  5. ASTM A403/A403M-15


    Standard Specification for Wrought Austenitic Stainless Steel Piping Fittings

    • Historical Version
  6. ASTM A403/A403M-14


    Standard Specification for Wrought Austenitic Stainless Steel Piping Fittings

    • Historical Version
  7. ASTM A403/A403M-13a


    Standard Specification for Wrought Austenitic Stainless Steel Piping Fittings

    • Historical Version
  8. ASTM A403/A403M-13


    Standard Specification for Wrought Austenitic Stainless Steel Piping Fittings

    • Historical Version
  9. ASTM A403/A403M-12


    Standard Specification for Wrought Austenitic Stainless Steel Piping Fittings

    • Historical Version
  10. ASTM A403/A403M-11


    Standard Specification for Wrought Austenitic Stainless Steel Piping Fittings

    • Historical Version
  11. ASTM A403/A403M-10a


    Standard Specification for Wrought Austenitic Stainless Steel Piping Fittings

    • Historical Version
  12. ASTM A403/A403M-10


    Standard Specification for Wrought Austenitic Stainless Steel Piping Fittings

    • Historical Version
  13. ASTM A403/A403M-09


    Standard Specification for Wrought Austenitic Stainless Steel Piping Fittings

    • Historical Version
  14. ASTM A403/A403M-07a


    Standard Specification for Wrought Austenitic Stainless Steel Piping Fittings

    • Historical Version
  15. ASTM A403/A403M-07


    Standard Specification for Wrought Austenitic Stainless Steel Piping Fittings

    • Historical Version
  16. ASTM A403/A403M-06


    Standard Specification for Wrought Austenitic Stainless Steel Piping Fittings

    • Historical Version
  17. ASTM A403/A403M-04


    Standard Specification for Wrought Austenitic Stainless Steel Piping Fittings

    • Historical Version
  18. ASTM A403/A403M-03a


    Standard Specification for Wrought Austenitic Stainless Steel Piping Fittings

    • Historical Version
  19. ASTM A403/A403M-03


    Standard Specification for Wrought Austenitic Stainless Steel Piping Fittings

    • Historical Version
  20. ASTM A403/A403M-02


    Standard Specification for Wrought Austenitic Stainless Steel Piping Fittings

    • Historical Version
  21. ASTM A403/A403M-01


    Standard Specification for Wrought Austenitic Stainless Steel Piping Fittings

    • Historical Version
  22. ASTM A403/A403M-00b


    Standard Specification for Wrought Austenitic Stainless Steel Piping Fittings

    • Historical Version
  23. ASTM A403/A403M-98


    Standard Specification for Wrought Austenitic Stainless Steel Piping Fittings

    • Historical Version