ASTM A249/A249M-03
(Specification)Standard Specification for Welded Austenitic Steel Boiler, Superheater, Heat-Exchanger, and Condenser Tubes
Standard Specification for Welded Austenitic Steel Boiler, Superheater, Heat-Exchanger, and Condenser Tubes
SCOPE
1.1 This specification covers nominal-wall-thickness welded tubes made from the austenitic steels listed in , with various grades intended for such use as boiler, superheater, heat exchanger, or condenser tubes.
1.2 Grades TP304H, TP309H, TP309HCb, TP310H, TP310HCb, TP316H, TP321H, TP347H, and TP348H are modifications of Grades TP304, TP309S, TP309Cb, TP310S, TP310Cb, TP316, TP321, TP347, and TP348, and are intended for high-temperature service such as for superheaters and reheaters.
1.3 The tubing sizes and thicknesses usually furnished to this specification are 1/8 in. [3.2 mm] in inside diameter to 5 in. [127 mm] in outside diameter and 0.015 to 0.320 in. [0.4 to 8.1 mm], inclusive, in wall thickness. Tubing having other dimensions may be furnished, provided such tubes comply with all other requirements of this specification.
1.4 Mechanical property requirements do not apply to tubing smaller than 1/8 in. [3.2 mm] in inside diameter or 0.015 in. [0.4 mm] in thickness.
1.5 Optional supplementary requirements are provided and, when one or more of these are desired, each shall be so stated in the order.
1.6 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.
1.7 The following safety hazards caveat pertains only to the test method described in the Supplementary Requirements of this specification. This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. A specific warning statement is given in Supplementary Requirement S7, Note S7.1.
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Used in USDOE-NE Standards
Designation: A 249/A 249M – 03
Standard Specification for
Welded Austenitic Steel Boiler, Superheater, Heat-
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Exchanger, and Condenser Tubes
This standard is issued under the fixed designation A 249/A 249M; 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* responsibility of the user of this standard to establish appro-
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priate safety and health practices and determine the applica-
1.1 This specification covers nominal-wall-thickness
bility of regulatory limitations prior to use. A specific warning
welded tubes made from the austenitic steels listed in Table 1,
statement is given in Supplementary Requirement S7, Note
with various grades intended for such use as boiler, super-
S7.1.
heater, heat exchanger, or condenser tubes.
1.2 Grades TP304H, TP309H, TP309HCb, TP310H,
2. Referenced Documents
TP310HCb, TP316H, TP321H, TP347H, and TP348H
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2.1 ASTM Standards:
are modifications of Grades TP304, TP309S, TP309Cb,
A 262 Practices for Detecting Susceptibility to Intergranu-
TP310S, TP310Cb, TP316, TP321, TP347, and TP348, and are
lar Attack in Austenitic Stainless Steels
intended for high-temperature service such as for superheaters
A 480/A 480M Specification for General Requirements for
and reheaters.
Flat-Rolled Stainless and Heat-Resisting Steel Plate,
1.3 The tubing sizes and thicknesses usually furnished to
Sheet, and Strip
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this specification are ⁄8 in. [3.2 mm] in inside diameter to 5 in.
A 1016/A 1016M Specification for General Requirements
[127 mm] in outside diameter and 0.015 to 0.320 in. [0.4 to 8.1
for Ferritic Alloy Steel, Austenitic Alloy Steel, and Stain-
mm], inclusive, in wall thickness. Tubing having other dimen-
less Steel Tubes
sions may be furnished, provided such tubes comply with all
E 112 Test Methods for Determining Average Grain Size
other requirements of this specification.
E 213 Practice for Ultrasonic Examination of Metal Pipe
1.4 Mechanical property requirements do not apply to
and Tubing
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tubing smaller than ⁄8 in. [3.2 mm] in inside diameter or 0.015
E 273 Practice for Ultrasonic Examination of the Weld
in. [0.4 mm] in thickness.
Zone of Welded Pipe and Tubing
1.5 Optional supplementary requirements are provided and,
E 527 Practice for Numbering Metals and Alloys (UNS)
when one or more of these are desired, each shall be so stated
in the order.
3. Ordering Information
1.6 The values stated in either inch-pound units or SI units
3.1 It is the responsibility of the purchaser to specify all
are to be regarded separately as standard. Within the text, the
requirements that are necessary for material ordered under this
SI units are shown in brackets. The values stated in each
specification. Such requirements may include, but are not
system are not exact equivalents; therefore, each system must
limited to, the following:
be used independently of the other. Combining values from the
3.1.1 Quantity (feet, metres, or number of lengths),
two systems may result in nonconformance with the specifi-
3.1.2 Name of material (welded tubes),
cation. The inch-pound units shall apply unless the “M”
3.1.3 Grade (Table 1),
designation of this specification is specified in the order.
3.1.4 Size (outside diameter and nominal wall thickness),
1.7 The following safety hazards caveat pertains only to the
3.1.5 Length (specific or random),
test method described in the Supplementary Requirements of
3.1.6 Optional requirements (13.6),
this specification. This standard does not purport to address all
3.1.7 Test report required (see Certification Section of
of the safety concerns, if any, associated with its use. It is the
Specification A 1016/A 1016M),
3.1.8 Specification designation, and
3.1.9 Special requirements and any supplementary require-
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This specification is under the jurisdiction of ASTM Committee A01 on Steel, ments selected.
Stainless Steel, and Related Alloys and is the direct responsibility of Subcommittee
A01.10 on Stainless and Alloy Steel Tubular Products.
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Current edition approved Oct. 1, 2003. Published November 2003. Originally For referenced ASTM standards, visit the ASTM website, www.astm.org, or
approved in 1941. Last previous edition approved in 2002 as A 249/A 249M – 02. contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
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For ASME Boiler and Pressure Vessel Code applications see related Specifi- Standards volume information, refer to the standard’s Document Summary page on
cation SA-249 in Section II of that Code. the ASTM website.
*A Summary of Changes section appears at the end of this standard.
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