Standard Specification for Welded Ferritic Stainless Steel Feedwater Heater Tubes

SCOPE
1.1 This specification covers welded ferritic stainless steel feedwater heater tubes including those bent, if specified, into the form of U-tubes for application in tubular feedwater heaters.  
1.2 The tubing sizes covered shall be 5/8 to 1 in. [15.9 to 25.4 mm] inclusive, in 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 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.

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09-Jul-2002
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ASTM A803/A803M-02 - Standard Specification for Welded Ferritic Stainless Steel Feedwater Heater Tubes
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NOTICE: This standard has either been superceded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
Designation: A 803/A 803M – 02
Standard Specification for
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Welded Ferritic Stainless Steel Feedwater Heater Tubes
This standard is issued under the fixed designation A 803/A 803M; the number immediately following the designation indicates the year
of original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval.
A superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
1. Scope * 4. Ordering Information
1.1 This specification covers welded ferritic stainless steel 4.1 Orders for material under this specification should
feedwater heater tubes including those bent, if specified, into include the following as required to adequately describe the
the form of U-tubes for application in tubular feedwater desired material:
heaters. 4.1.1 Quantity (length or number of pieces),
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1.2 The tubing sizes covered shall be ⁄8 to 1 in. [15.9 to 25.4 4.1.2 Material description,
mm] inclusive, in outside diameter, and average or minimum 4.1.3 Dimensions (outside diameter, wall thickness (mini-
wall thicknesses of 0.028 in. [0.7 mm] and heavier. mum or average wall), and length),
1.3 The values stated in either inch-pound units or SI units 4.1.4 Grade (chemical composition) (Table 1), and
are to be regarded separately as standard. Within the text, the 4.1.5 U-bend requirements, if order specifies bending,
SI units are shown in brackets. The values stated in each U-bend schedules or drawings shall accompany the order.
system are not exact equivalents; therefore, each system must 4.2 Optional Requirements—Purchaser shall specify
be used independently of the other. Combining values from the whether annealing of the U-bends is required or whether tubes
two systems may result in nonconformance with the specifi- are to be hydrotested or air-tested (see 10.5).
cation. The inch-pound units shall apply unless the “M” 4.3 Supplementary Requirements—Purchaser shall specify
designation of this specification is specified in the order. on this purchase order if material is to be eddy-current tested in
accordance with Supplementary Requirement S1 or S2, and if
2. Referenced Documents
special test reports are required, under Supplementary Require-
2.1 ASTM Standards: ment S3.
A 1016/A 1016M Specification for General Requirements
5. General Requirements
for Ferritic Alloy Steel, Austenitic Alloy Steel, and Stain-
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less Steel Tubes 5.1 Material furnished to this specification shall conform to
A 480/A 480M Specification for General Requirements for the applicable requirements of the latest published edition of
Flat-Rolled Stainless and Heat Resisting Steel Plate, Sheet, Specification A 1016/A 1016M unless otherwise provided
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and Strip herein.
A 763 Practices for Detecting Susceptibility to Intergranu-
3 6. Materials and Manufacture
lar Attack in Ferritic Stainless Steels
6.1 The tube shall be made from flat-rolled steel by an
A 941 Terminology Relating to Steel, Stainless Steel, Re-
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lated Alloys, and Ferroalloys automatic welding process with no addition of filler metal.
6.2 Surface contaminants may have detrimental effects on
3. Terminology
high temperature properties or corrosion resistance of tubing.
3.1 Definitions—For definitions of terms used in this speci- Contamination by copper, lead, mercury, zinc, chlorides, or
fication, refer to Terminology A 941. sulfur may be detrimental to stainless steels. The manufacturer
shall employ techniques which minimize surface contamina-
tion by these elements.
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7. Cleaning Before Annealing
This specification is under the jurisdiction of ASTM Committee A01 on Steel,
Stainless Steel and Related Alloys and is the direct responsibility of Subcommittee
7.1 All lubricants or coatings used in the manufacture of
A01.10 on Stainless and Alloy Steel Tubular Products.
straight-length tube or in the bending shall be removed from all
Current edition approved July 10, 2002. Published July 2002. Originally
published as A 803 – 82. Last previous edition A 803/A 803M – 01.
surfaces prior to any annealing treatments. U-bends on which
2
Annual Book of ASTM Standards, Vol 01.01.
a lubricant had been applied to the inside surface during
3
Annual Book of ASTM Standards, Vol 01.03.
*A Summary of Changes section appears at the end of this standard.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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NOTICE: This standard has either been superceded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
A 803/A 803M – 02
TABLE 1 Chemical Requirements
Grade UNS UNS S 43035 UNS UNS S 44626 UNS S 44635 UNS S 44660 UNS UNS UNS S 44400 UNS S 44735
S 40900 TP439 S 44627 TP XM-33 25-4-4 2
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