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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 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 shall be used independently of the other. Combining values from the two systems may result in nonconformance with the specification.

 

Document History

  1. ASTM A688/A688M-18


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

    • Most Recent
  2. ASTM A688/A688M-15


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

    • Historical Version
  3. ASTM A688/A688M-12


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

    • Historical Version
  4. ASTM A688/A688M-11


    Standard Specification for Welded Austenitic Stainless Steel Feedwater Heater Tubes

    • Historical Version
  5. ASTM A688/A688M-10


    Standard Specification for Welded Austenitic Stainless Steel Feedwater Heater Tubes

    • Historical Version
  6. ASTM A688/A688M-08


    Standard Specification for Welded Austenitic Stainless Steel Feedwater Heater Tubes

    • Historical Version
  7. ASTM A688/A688M-07


    Standard Specification for Welded Austenitic Stainless Steel Feedwater Heater Tubes

    • Historical Version
  8. ASTM A688/A688M-04


    Standard Specification for Welded Austenitic Stainless Steel Feedwater Heater Tubes

    • Historical Version
  9. ASTM A688/A688M-03


    Standard Specification for Welded Austenitic Stainless Steel Feedwater Heater Tubes

    • Historical Version
  10. ASTM A688/A688M-02


    Standard Specification for Welded Austenitic Stainless Steel Feedwater Heater Tubes

    • Historical Version
  11. ASTM A688/A688M-01


    Standard Specification for Welded Austenitic Stainless Steel Feedwater Heater Tubes

    • Historical Version
  12. ASTM A688/A688M-00

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    Standard Specification for Welded Austenitic Stainless Steel Feedwater Heater Tubes

    • Historical Version