ASTM A1020/A1020M-02(2012)
(Specification)Standard Specification for Steel Tubes, Carbon and Carbon Manganese, Fusion Welded, for Boiler, Superheater, Heat Exchanger and Condenser Applications (Withdrawn 2017)
Standard Specification for Steel Tubes, Carbon and Carbon Manganese, Fusion Welded, for Boiler, Superheater, Heat Exchanger and Condenser Applications (Withdrawn 2017)
ABSTRACT
This specification covers steel tubes, carbon and carbon manganese, fusion welded, for boiler, superheater, heat exchanger and condenser application. After welding, all tubes shall be heat treated and followed by cooling in air or in the cooling chamber of a controlled atmosphere furnace. The steel shall conform to the required chemical compositions. The tensile and hardness test requirements to all tube prior to cutting are presented. Mechanical testing requirements indicates that, one flattening test shall be made on specimens from each of two tubes from each lot or fraction thereof, one flange test shall be made on specimens from each of two tubes from each lot or fraction thereof, one crush test shall be made on specimens from each of two tubes from each lot or fraction thereof, and one reverse flattening test shall be made on each 1500 ft [450 m] of finished tubing. Finally, each tube shall be subjected to either the hydrostatic or the non-destructive electric test.
SCOPE
1.1 This specification covers minimum wall thickness welded tubes made from carbon and carbon manganese steels listed in Table 1, with various grades intended for use in boiler, superheater, heat exchanger, or condenser applications.TABLE 1 Chemical Requirements, Composition, %
Element
Grade A
Low Carbon
Steel
Grade C
Medium Carbon
Steel
Grade D
Carbon Manganese
Steel
Carbon
0.06–0.18
0.30 max
0.27 max
Manganese
0.27–0.63
0.80 max
1.00–1.50
Phosphorus
0.035 max
0.035 max
0.030 max
Sulfur
0.035 max
0.035 max
0.015 max
Silicon
No Requirement
No Requirement
0.10 min
1.2 The tubing sizes and thicknesses usually furnished to this specification are 1/4 to 5 in. [6.3 to 127 mm] in outside diameter and 0.015 to 0.375 in. [0.4 to 9.5 mm], inclusive, in 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 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 the specification is specified in the order.
1.5 Optional supplementary requirements are provided and when desired, shall be so stated on the purchase order.
1.6 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 requirements prior to use.
WITHDRAWN RATIONALE
This specification covered minimum wall thickness welded tubes made from carbon and carbon manganese steels, with various grades intended for use in boiler, superheater, heat exchanger, or condenser applications.
Formerly under the jurisdiction of Committee A01 on Steel, Stainless Steel and Related Alloys, this specification was withdrawn in September 2017. This standard is being withdrawn without replacement due to its limited use by industry.
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Designation:A1020/A1020M −02 (Reapproved 2012)
Standard Specification for
Steel Tubes, Carbon and Carbon Manganese, Fusion
Welded, for Boiler, Superheater, Heat Exchanger and
1
Condenser Applications
This standard is issued under the fixed designation A1020/A1020M; 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 2. Referenced Documents
2
1.1 This specification covers minimum wall thickness 2.1 ASTM Standards:
welded tubes made from carbon and carbon manganese steels A450/A450M Specification for General Requirements for
listed in Table 1, with various grades intended for use in boiler, Carbon and Low Alloy Steel Tubes
superheater, heat exchanger, or condenser applications. E213 Practice for Ultrasonic Testing of Metal Pipe and
Tubing
1.2 The tubing sizes and thicknesses usually furnished to
E273 Practice for Ultrasonic Testing of the Weld Zone of
1
this specification are ⁄4 to 5 in. [6.3 to 127 mm] in outside
Welded Pipe and Tubing
diameter and 0.015 to 0.375 in. [0.4 to 9.5 mm], inclusive, in
wall thickness. Tubing having other dimensions may be fur-
3. Ordering Information
nished provided such tubes comply with all other requirements
3.1 Orders for material under this specification should
of this specification.
include the following, as required, to describe the desired
1.3 Mechanical property requirements do not apply to
material adequately:
1
tubing smaller than ⁄8 in. [3.2 mm] in inside diameter or 0.015
3.1.1 Quantity (feet, metres, or number of lengths).
in. [0.4 mm] in thickness.
3.1.2 Name of material (welded tubes).
3.1.3 Grade (Table 1).
1.4 The values stated in either inch-pound units or SI units
3.1.4 Size (outside diameter and minimum wall thickness).
are to be regarded separately as standard. Within the text, the
3.1.5 Length (specific or random).
SI units are shown in brackets. The values stated in each
3.1.6 Optional requirements (product analysis, hydrostatic
system are not exact equivalents; therefore, each system must
or nondestructive electric test, crush test, and bar coding).
be used independently of the other. Combining values from the
3.1.7 Test report required (see Certification Section of
two systems may result in nonconformance with the specifi-
Specification A450/A450M).
cation. The inch-pound units shall apply unless the “M”
3.1.8 Specification designation.
designation of the specification is specified in the order.
3.1.9 Optional supplementary requirements are provided
1.5 Optional supplementary requirements are provided and
and when desired, shall be designated on the order.
when desired, shall be so stated on the purchase order.
4. General Requirements
1.6 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the
4.1 Material furnished under this specification shall con-
responsibility of the user of this standard to establish appro-
form to the applicable requirements of the current edition of
priate safety and health practices and determine the applica-
Specification A450/A450M, unless otherwise provided herein.
bility of regulatory requirements prior to use.
5. Materials and Manufacture
5.1 All steels shall be killed.
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
2
A01.09 on Carbon Steel Tubular Products. For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Current edition approved Sept. 1, 2012. Published November 2012. Originally contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
approved in 2001. Last previous edition approved in 2007 as A1020/ Standards volume information, refer to the standard’s Document Summary page on
A1020M - 02(2007). DOI: 10.1520/A1020_A1020M-02R12. the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
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A1020/A1020M−02 (2012)
TABLE 1 Chemical Requirements, Composition, %
9.2 For Grade A tubes, hardness test shall be made on
Element Grade A Grade C Grade D specimens from each of two tubes from each lot and shall not
Low Carbon Medium Carbon Carbon Manganese
have a hardness number exceeding 72 HRB.
Steel Steel Steel
9.3 Grade C and D tubes, one tension test shall be made on
Carbon 0.06–0.18 0.30 max 0.27 max
Manganese 0.27–0.63 0.80 max 1.00–1.50
specimens from each of two tubes from each lot and shall
Phosphorus 0.035 max 0.035 max 0.030 max
conform to properties prescribed in Table 2.
Sulfur 0.035
...
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