ASTM A249/A249M-01a
(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.
General Information
Relations
Standards Content (Sample)
NOTICE: This standard has either been superseded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
Used in USDOE-NE Standards
Designation: A 249/A 249M – 01a
An American National Standard
Standard Specification for
Welded Austenitic Steel Boiler, Superheater, Heat-
1
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-
2
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
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
3
lar Attack in Austenitic Stainless Steels
intended for high-temperature service such as for superheaters
A 450/A 450M Specification for General Requirements for
and reheaters.
4
Carbon, Ferritic Alloy, and Austenitic Alloy Steel Tubes
1.3 The tubing sizes and thicknesses usually furnished to
A 480/A 480M Specification for General Requirements for
1
this specification are ⁄8 in. [3.2 mm] in inside diameter to 5 in.
Flat-Rolled Stainless and Heat-Resisting Steel Plate,
[127 mm] in outside diameter and 0.015 to 0.320 in. [0.4 to 8.1
3
Sheet, and Strip
mm], inclusive, in wall thickness. Tubing having other dimen-
5
E 112 Test Methods for Determining Average Grain Size
sions may be furnished, provided such tubes comply with all
E 213 Practice for Ultrasonic Examination of Metal Pipe
other requirements of this specification.
6
and Tubing
1.4 Mechanical property requirements do not apply to
1 E 273 Practice for Ultrasonic Examination of Longitudinal
tubing smaller than ⁄8 in. [3.2 mm] in inside diameter or 0.015
6
Welded Pipe and Tubing
in. [0.4 mm] in thickness.
4
E 527 Practice for Numbering Metals and Alloys (UNS)
1.5 Optional supplementary requirements are provided and,
when one or more of these are desired, each shall be so stated
3. Ordering Information
in the order.
3.1 Orders for material under this specification should
1.6 The values stated in either inch-pound units or SI units
include the following, as required, to describe the desired
are to be regarded separately as standard. Within the text, the
material adequately:
SI units are shown in brackets. The values stated in each
3.1.1 Quantity (feet, metres, or number of lengths),
system are not exact equivalents; therefore, each system must
3.1.2 Name of material (welded tubes),
be used independently of the other. Combining values from the
3.1.3 Grade (Table 1),
two systems may result in nonconformance with the specifi-
3.1.4 Size (outside diameter and nominal wall thickness),
cation. The inch-pound units shall apply unless the “M”
3.1.5 Length (specific or random),
designation of this specification is specified in the order.
3.1.6 Optional requirements (13.6),
1.7 The following safety hazards caveat pertains only to the
3.1.7 Test report required (see Certification Section of
test method described in the Supplementary Requirements of
Specification A 450/A 450M),
this specification. This standard does not purport to address all
3.1.8 Specification designation, and
of the safety concerns, if any, associated with its use. It is the
3.1.9 Special requirements and any supplementary require-
ments 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
A01.10 on Stainless and Alloy Steel Tubular Products.
3
Current edition approved Sept. 10, 2001. Published December 2001. Originally Annual Book of ASTM Standards, Vol 01.03.
4
published as A 249 – 41 T. Last previous edition A 249/A 249M – 01. Annual Book of ASTM Standards, Vol 01.01.
2 5
For ASME Boiler and Pressure Vessel Code applications see related Specifi- Annual Book of ASTM Standards, Vol 03.01.
6
cation SA-249 in Section II of that Code. Annual Book of ASTM Standards, Vol 03.03.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1
---------------------- Page: 1 ----------------------
A 249/A 249M
2
A
TABLE 1 Chemical Requirements, %
Compos
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.