ASTM A210/A210M-96(2001)
(Specification)Standard Specification for Seamless Medium-Carbon Steel Boiler and Superheater Tubes
Standard Specification for Seamless Medium-Carbon Steel Boiler and Superheater Tubes
SCOPE
1.1 This specification covers minimum-wall-thickness, seamless medium-carbon steel, boiler tubes and boiler flues, including safe ends (Note 1), arch and stay tubes, and superheater tubes.
Note 1—This type is not suitable for safe ending by forge welding.
1.2 The tubing sizes and thicknesses usually furnished to this specification are 1/2 in. to 5 in. [12.7 to 127 mm] in outside diameter and 0.035 to 0.500 in. [0.9 to 12.7 mm], inclusive, in minimum wall thickness. Tubing having other dimensions may be furnished, provided such tubes comply with all other requirements of this specification.
1.3 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.
1.4 When these products are to be used in applications conforming to ISO Recommendations for Boiler Construction, the requirements of Specification A520, shall supplement and supersede the requirements of this specification.
1.5 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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An American National Standard
Designation: A 210/A 210M – 96 (Reapproved 2001)
Standard Specification for
Seamless Medium-Carbon Steel Boiler and Superheater
Tubes
This standard is issued under the fixed designation A 210/A 210M; 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 Tubular Products for High-Temperature Service Conform-
ing to ISO Recommendations for Boiler Construction
1.1 This specification covers minimum-wall-thickness,
seamless medium-carbon steel, boiler tubes and boiler flues,
3. Ordering Information
including safe ends (see Note 1), arch and stay tubes, and
3.1 Orders for material under this specification should
superheater tubes.
include the following, as required, to describe the desired
NOTE 1—This type is not suitable for safe ending by forge welding.
material adequately:
3.1.1 Quantity (feet, metres, or number of lengths),
1.2 The tubing sizes and thicknesses usually furnished to
this specification are ⁄2 in. to 5 in. [12.7 to 127 mm] in outside 3.1.2 Name of material (seamless tubes),
3.1.3 Grade,
diameter and 0.035 to 0.500 in. [0.9 to 12.7 mm], inclusive, in
minimum wall thickness. Tubing having other dimensions may 3.1.4 Manufacture (hot-finished or cold-finished),
3.1.5 Size (outside diameter and minimum wall thickness),
be furnished, provided such tubes comply with all other
requirements of this specification. 3.1.6 Length (specific or random),
3.1.7 Optional requirements (Sections 7 and 10),
1.3 Mechanical property requirements do not apply to
tubing smaller than ⁄8 in. [3.2 mm] in inside diameter or 0.015 3.1.8 Test report required, (see Certification Section of
Specification A 450/A 450M),
in. [0.4 mm] in thickness.
1.4 When these products are to be used in applications 3.1.9 Specification designation, and
3.1.10 Special requirements.
conforming to ISO Recommendations for Boiler Construction,
the requirements of Specification A 520, shall supplement and
4. General Requirements
supersede the requirements of this specification.
4.1 Material furnished under this specification shall con-
1.5 The values stated in either inch-pound units or SI units
form to the applicable requirements of the current edition of
are to be regarded separately as standard. Within the text, the
Specification A 450/A 450M, unless otherwise provided
SI units are shown in brackets. The values stated in each
herein.
system are not exact equivalents; therefore, each system must
be used independently of the other. Combining values from the
5. Manufacture
two systems may result in nonconformance with the specifi-
5.1 Steelmaking Practice—The steel shall be killed.
cation. The inch-pound units shall apply unless the “M”
5.2 The tubes shall be made by the seamless process and
designation of this specification is specified in the order.
shall be either hot-finished or cold-finished, as specified.
2. Referenced Documents
6. Heat Treatment
2.1 ASTM Standards:
6.1 Hot-finished tubes need not be heat treated. Cold-
A 450/A 450M Specification for General Requirements for
finished tubes shall be given a subcritical anneal, a full anneal,
Carbon, Ferritic Alloy, and Austenitic Alloy Steel Tubes
or a normalizing heat treatment after the final cold finishing
A 520 Specification for Supplementary Requirements for
process.
Seamless and Electric-Resistance-Welded Carbon Steel
7. Surface Condition
This specification is under the jurisdiction of ASTM Committee A01 on Steel,
7.1 If pickling or shot blasting or both are required, this
Stainless Steel, and Related Alloys and is the direct responsibility of Subcommittee
A01.09 on Carbon Steel Tubular Products. shall be specifically stated in the order.
Current edition approved Oct. 10, 1996. Published November 1997. Originally
published as A 210 – 38 T. Last previous edition A 210/A 210M – 95.
8. Chemical Composition
For ASME Boiler and Pressure Vessel Code applications see related Specifi-
8.1 The steel shall conform to the requirements as to
cation SA-210 in Section II of that Code.
Annual Book of ASTM Standards, Vol 01.01.
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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.
A 210/A 210M
TABLE 2 Number of Tubes in a Lot Heat Treated by the
chemical composition prescribed in Table 1.
Continuous Process
8.2 When a grade is ordered under this specification, sup-
Size of Tube Size of Lot
plying an alloy grade that specifically requires the addition of
any element other than those listed for the ordered grade in 2 in. (50.8 mm) and over in outside diameter and not more than 50 tubes
0.200 in. (5.1 mm) and over in wall thickness
Table 1 is not permitted.
2 in. (50.8 mm) and over in outside diameter and not more than 75 tubes
under 0.200 in. (5.1 mm) in wall thickness
9. Product Analysis
Less than 2 in. (50.8 mm) but over 1 in. (25.4 mm) not more than 75 tubes
in outside diameter
9.1 When requested on the purchase order, a product analy-
1 in. (25.4 mm) or less in outside diameter not more than 125 tubes
sis shall be made by the supplier from one tube or billet per
heat. The chemical composition thus determined shall conform
to the requirements specified.
TABLE 3 Tensile Requirements
9.2 If the original test for product analysis fails, retests of
Grade A-1 Grade C
two additional billets or tubes shall be made. Both retests for
Tensile strength, min, ksi [MPa] 60 [415] 70 [485]
the elements in question shall meet the requirements of the
Yield strength, min, ksi [MPa] 37 [255] 40 [275]
Elongation in 2 in. or 50 mm, min, % 30 30
specification; otherwise, all remaining material in the heat or
A A
For longitudinal strip tests, a deduction shall be 1.50 1.50
lot ( see Note 2) shall be rejected or, at the option of the
made for each ⁄32-in. [0.8-mm] decrease in
producer, each billet or tube may be individually tested for 5
wall thickness under ⁄16in. [8 mm] from the
basic minimu
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