ASTM A556/A556M-18
(Specification)Standard Specification for Seamless Cold-Drawn Carbon Steel Feedwater Heater Tubes
Standard Specification for Seamless Cold-Drawn Carbon Steel Feedwater Heater Tubes
ABSTRACT
This specification covers minimum-wall-thickness, seamless cold-drawn carbon steel tubes including bending into the form of U-tubes for use in tubular feedwater heaters. Mechanical tests shall be made on specimens including: tension test; flattening test; flaring test; hardness test; and hydrostatic test. Each tube shall be tested after the finish heat treatment following the final cold-drawn pass by passing through a nondestructive tester capable of detecting defects on the entire cross section of the tube.
SCOPE
1.1 This specification2 covers minimum-wall-thickness, seamless cold-drawn carbon steel tubes including bending into the form of U-tubes, if specified, for use in tubular feedwater heaters.
1.2 The tubing sizes covered shall be 5/8 to 11/4-in. [15.9 to 31.8-mm] outside diameter, inclusive, with minimum wall thicknesses equal to or greater than 0.045 in. [1.1 mm].
1.3 Optional supplementary requirements are provided, and when desired, shall be stated in the order.
1.4 The values stated in either inch-pound units or SI units are to be regarded separately as the 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.
1.5 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.
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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.
Designation:A556/A556M −18
Standard Specification for
Seamless Cold-Drawn Carbon Steel Feedwater Heater
1
Tubes
This standard is issued under the fixed designationA556/A556M; the number immediately following the designation indicates the year
of original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.
A superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope* A751Test Methods, Practices, and Terminology for Chemi-
2 cal Analysis of Steel Products
1.1 This specification covers minimum-wall-thickness,
seamless cold-drawn carbon steel tubes including bending into
3. Ordering Information
the form of U-tubes, if specified, for use in tubular feedwater
heaters.
3.1 Orders for material under this specification should
include the following as required to describe the desired
5 1
1.2 The tubing sizes covered shall be ⁄8 to 1 ⁄4-in. [15.9 to
material adequately:
31.8-mm] outside diameter, inclusive, with minimum wall
3.1.1 Quantity (feet, metres, or number of pieces),
thicknesses equal to or greater than 0.045 in. [1.1 mm].
3.1.2 Name of material (seamless steel tubing),
1.3 Optional supplementary requirements are provided, and
3.1.3 Dimensions (outside diameter and minimum wall
when desired, shall be stated in the order.
thickness),
1.4 The values stated in either inch-pound units or SI units
3.1.4 Length (specific or random),
are to be regarded separately as the standard. Within the text,
3.1.5 Manufacture (cold drawn),
the SI units are shown in brackets. The values stated in each
3.1.6 Grade (chemical composition),
system are not exact equivalents; therefore, each system must
3.1.7 Optional requirements,
beusedindependentlyoftheother.Combiningvaluesfromthe
3.1.8 Bending Requirements—If order specifies tubes to be
two systems may result in nonconformance with the specifi-
bent, the design of the U-tubes shall accompany the order.
cation. The inch-pound units shall apply unless the “M”
Purchaser must specify if stress-relief anneal of the U-bends is
designation of this specification is specified in the order.
required,
3.1.9 Test report required (see Certification Section of
1.5 This international standard was developed in accor-
dance with internationally recognized principles on standard- Specification A450/A450M),
ization established in the Decision on Principles for the 3.1.10 Specification number, and
Development of International Standards, Guides and Recom- 3.1.11 Specialrequirementsandanysupplementaryrequire-
mendations issued by the World Trade Organization Technical
ments selected.
Barriers to Trade (TBT) Committee.
4. General Requirements
2. Referenced Documents
4.1 Material furnished to this specification shall conform to
3
2.1 ASTM Standards:
the applicable requirements of the current edition of the
A450/A450MSpecification for General Requirements for
Specification A450/A450M, unless otherwise provided herein.
Carbon and Low Alloy Steel Tubes
5. Manufacture
5.1 Manufacture—Tubes shall be made by the seamless
1
This specification is under the jurisdiction ofASTM Committee A01 on Steel,
process and shall be cold drawn.
Stainless Steel and RelatedAlloys and is the direct responsibility of Subcommittee
A01.09 on Carbon Steel Tubular Products. 5.2 Heat Treatment:
Current edition approved Sept. 1, 2018. Published September 2018. Originally
5.2.1 Cold-drawn tubes shall be heat treated after the final
approved in 1965. Last previous edition approved in 2012 as A556/A556M–96
cold-drawpassatatemperatureof1200°F[640°C]orhigherto
(2012). DOI: 10.1520/A0556_A0556M-18.
2
ensure ductility satisfactory for rolling into tube sheets and to
For ASME Boiler and Pressure Vessel Code applications see related Specifi-
cation SA-556 in Section II of that Code.
meet mechanical properties as specified.
3
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
5.2.2 If stress-relief anneal of the U-bends is specified, the
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
anneal shall consist of heating the bent portion within a range
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. of 1100 to 1200°F [585 to 640°C].
*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
1
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A556/A556M−18
TABLE 2 Tensile Requirements
6. Chemical Composition
Grade A2 Grade B2 Grade C2
6.1 The steel shall conform to one of the requirements as to
Tensile strength, min, k
...
This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: A556/A556M − 96 (Reapproved 2012) A556/A556M − 18
Standard Specification for
Seamless Cold-Drawn Carbon Steel Feedwater Heater
1
Tubes
This standard is issued under the fixed designation A556/A556M; 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 (´) indicates an editorial change since the last revision or reapproval.
1. Scope Scope*
2
1.1 This specification covers minimum-wall-thickness, seamless cold-drawn carbon steel tubes including bending into the form
of U-tubes, if specified, for use in tubular feedwater heaters.
5 1
1.2 The tubing sizes covered shall be ⁄8 to 1 ⁄4-in. [15.9 to 31.8-mm] outside diameter, inclusive, with minimum wall
thicknesses equal to or greater than 0.045 in. [1.1 mm].
1.3 Optional supplementary requirements are provided, and when desired, shall be stated in the order.
1.4 The values stated in either inch-pound units or SI units are to be regarded separately as the 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.
1.5 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.
2. Referenced Documents
3
2.1 ASTM Standards:
A450/A450M Specification for General Requirements for Carbon and Low Alloy Steel Tubes
E30A751 Test Methods Methods, Practices, and Terminology for Chemical Analysis of Steel, Cast Iron, Open-Hearth Iron, and
Wrought IronSteel Products (Withdrawn 1995)
3. Ordering Information
3.1 Orders for material under this specification should include the following as required to describe the desired material
adequately:
3.1.1 Quantity (feet, metres, or number of pieces),
3.1.2 Name of material (seamless steel tubing),
3.1.3 Dimensions (outside diameter and minimum wall thickness),
3.1.4 Length (specific or random),
3.1.5 Manufacture (cold drawn),
3.1.6 Grade (chemical composition),
3.1.7 Optional requirements,
3.1.8 Bending Requirements—If order specifies tubes to be bent, the design of the U-tubes shall accompany the order. Purchaser
must specify if stress-relief anneal of the U-bends is required,
3.1.9 Test report required (see Certification Section of Specification A450/A450M),
3.1.10 Specification number, and
3.1.11 Special requirements and any supplementary requirements selected.
1
This specification is under the jurisdiction of ASTM Committee A01 on Steel, Stainless Steel and Related Alloys and is the direct responsibility of Subcommittee A01.09
on Carbon Steel Tubular Products.
Current edition approved March 1, 2012Sept. 1, 2018. Published November 2012September 2018. Originally approved in 1965. Last previous edition approved in
20052012 as A556/A556M – 96 (2005).(2012). DOI: 10.1520/A0556_A0556M-96R12. 10.1520/A0556_A0556M-18.
2
For ASME Boiler and Pressure Vessel Code applications see related Specification SA-556 in Section II of that Code.
3
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
*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
1
---------------------- Page: 1 ----------------------
A556/A556M − 18
4. General Requirements
4.1 Material furnished to this specification shall conform to the applicable requirements of the current edition of the
Specification A450/A450M, unless otherwise provided herein.
5. Manufacture
5.1 Manufacture—Tubes shall be made by the seamless process and shall be cold drawn.
5.2 Heat Treatment:
5.2.1 Cold-drawn tubes shall be heat treated after the final cold-draw pass at a temperature of 1200°F [640°C] or higher to
ensure ductility satisfactory for rolling into tube sheets and to meet mechanical properties as speci
...
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