Standard Specification for Seamless and Welded Ferritic Stainless Steel Feedwater Heater Tubes
|Publication Date:||1 March 2012|
|ICS Code (Iron and steel pipes):||23.040.10|
This specification covers seamless and welded ferritic stainless steel feedwater heater tubes including those bent, if specified, into the form of U-tubes for application in tubular feedwater heaters.
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.
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.
*A Summary of Changes section appears at the end of this standard.