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About This Item

 

Full Description

1.1 This specification covers welded austenitic stainless steel feedwater heater tubes including those bent, if specified, into the form of U-tubes for application in tubular feed-water heaters.

1.2 The tubing sizes covered shall be 5/8 to 1 in. [15.9 to 25.4 mm] inclusive outside diameter, and average or minimum wall thicknesses of 0.028 in. [0.7 mm] and heavier.

1.3 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.

 

Document History

  1. ASTM A688/A688M-18(2022)


    Standard Specification for Seamless and Welded Austenitic Stainless Steel Feedwater Heater Tubes

    • Most Recent
  2. ASTM A688/A688M-18


    Standard Specification for Seamless and Welded Austenitic Stainless Steel Feedwater Heater Tubes

    • Historical Version
  3. ASTM A688/A688M-15


    Standard Specification for Seamless and Welded Austenitic Stainless Steel Feedwater Heater Tubes

    • Historical Version
  4. ASTM A688/A688M-12


    Standard Specification for Seamless and Welded Austenitic Stainless Steel Feedwater Heater Tubes

    • Historical Version
  5. ASTM A688/A688M-11

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    Standard Specification for Welded Austenitic Stainless Steel Feedwater Heater Tubes

    • Historical Version
  6. ASTM A688/A688M-10


    Standard Specification for Welded Austenitic Stainless Steel Feedwater Heater Tubes

    • Historical Version
  7. ASTM A688/A688M-08


    Standard Specification for Welded Austenitic Stainless Steel Feedwater Heater Tubes

    • Historical Version
  8. ASTM A688/A688M-07


    Standard Specification for Welded Austenitic Stainless Steel Feedwater Heater Tubes

    • Historical Version
  9. ASTM A688/A688M-04


    Standard Specification for Welded Austenitic Stainless Steel Feedwater Heater Tubes

    • Historical Version
  10. ASTM A688/A688M-03


    Standard Specification for Welded Austenitic Stainless Steel Feedwater Heater Tubes

    • Historical Version
  11. ASTM A688/A688M-02


    Standard Specification for Welded Austenitic Stainless Steel Feedwater Heater Tubes

    • Historical Version
  12. ASTM A688/A688M-01


    Standard Specification for Welded Austenitic Stainless Steel Feedwater Heater Tubes

    • Historical Version
  13. ASTM A688/A688M-00


    Standard Specification for Welded Austenitic Stainless Steel Feedwater Heater Tubes

    • Historical Version