ASTM A1020/A1020M-02(2007)
(Specification)Standard Specification for Steel Tubes, Carbon and Carbon Manganese, Fusion Welded, for Boiler, Superheater, Heat Exchanger and Condenser Applications
Standard Specification for Steel Tubes, Carbon and Carbon Manganese, Fusion Welded, for Boiler, Superheater, Heat Exchanger and Condenser Applications
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.
1.2 The tubing sizes and thicknesses usually furnished to this specification are ¼ 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.
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Designation:A1020/A1020M −02(Reapproved 2007)
Standard Specification for
Steel Tubes, Carbon and Carbon Manganese, Fusion
Welded, for Boiler, Superheater, Heat Exchanger and
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
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
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:
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.
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. For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Current edition approved Nov. 1, 2007. Published January 2008. Originally contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
approved in 2001. Last previous edition approved in 2002 as A1020/A1020M - 02. Standards volume information, refer to the standard’s Document Summary page on
DOI: 10.1520/A1020_A1020M-02R07. the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
A1020/A1020M−02 (2007)
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 max 0.035 max 0.015 max
Silicon No Requirement No Requirement 0.10 min
9.4 Table 3 gives the computed minimum elongation values
foreach ⁄32-in,[0.8-mm]decreaseinwallthickness.Wherethe
wall thickness lies between two values shown above. The
minimum elongation value shall be determined by the follow-
5.2 The tubes shall be made by an automatic fusion welding
ing equation:
process with no addition of filler metal.
E 5 48t115.00 E 5 1.87t115.00
@ #
6. Heat Treatment
where:
6.1 After welding, all tubes shall be heat treated at a
E = elongation in 2 in. or 50 mm, min, %, and
temperature of 1650°F [900°C] or higher and followed by
t = actual wall thickness of specimen, in. [mm].
cooling in air or in the cooling chamber of a controlled
atmosphere furnace. Cold drawn tubes shall be heat treated
10. Crush Test
after the final cold-draw pass at a temperature of 1200°F
10.1 Where specified in the purchase order, crushing tests
[650°C] or higher.
shall be made. The test specimens shall be sections of tube
having a length that is at least 2 ⁄2 times the specified outside
7. Chemical Composition
diameter of the tube for tubes that are less than 1 in. [25.4 mm]
7.1 The steel shall conform to the requirements as to
in specified outside diameter, and at least 2 ⁄2 in. [63 mm] for
chemical composition prescribed in Table 1.
tubes that are 1 in. [25.4 mm] or larger in specified outside
diameter. Slight surface checks shall not be cause for rejection.
7.2 When a grade is ordered under this specification, sup-
The test specimens shall withstand crushing longitudinally
plying an alloy grade that specifically requires the addition of
without cracking, splitting, or opening at the weld, as follows:
any element other than those listed in Table 1 is not permitted.
Wall Thickness of Tubes,Height of Crushed
8. Product Analysis in. [mm] Section,
in. [mm]
8.1 For the purpose of product analysis, a lot consists of 250
Grade A Tubes Grades C and D Tubes
0.135 in. [3.4] and under ⁄4 in. [19] or until outside Crush tests not required
pieces for sizes up to and including 3 in. [76.2 mm] OD and
folds are in contact
100 pieces for sizes over 3 in. [76.2 mm] OD; or when tubes
Over 0.135 in. [3.4] 1 ⁄4 [32]
are identified by heat number, all tubes within that heat.
11. Mechanical Tests Required
8.2 When requested on the purchase or
...
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:A1020/A1020M–01 Designation: A 1020/A 1020M – 02 (Reapproved 2007)
Standard Specification for
Steel Tubes, Carbon and Carbon Manganese, Fusion
Welded, for Boiler, Superheater, Heat Exchanger and
Condenser Applications
This standard is issued under the fixed designation A 1020/A 1020M; 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
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.
1.2 Thetubingsizesandthicknessesusuallyfurnishedtothisspecificationare ⁄4in.[6.3mm]to5in.[6.3to127mm]inoutside
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 ⁄8 in. [3.2 mm] in inside diameter or 0.015 in. [0.4
mm] in thickness.
1.4 Thevaluesstatedineitherinch-poundunitsorSIunitsaretoberegardedseparatelyasstandard.Withinthetext,theSIunits
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.
2. Referenced Documents
2.1 ASTM Standards:
A 450/A 450M SpecificationforGeneralRequirementsforCarbon,FerriticAlloy,CarbonandAusteniticLowAlloySteelTubes
E 213 Practice for Ultrasonic Examination of Metal Pipe and Tubing
E 273 Practice for Ultrasonic Examination of Longitudinalthe Weld Zone of Welded Pipe and Tubing
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, meters,metres, or number of lengths).
3.1.2 Name of material (welded tubes).
3.1.3 Grade (Table 1).
3.1.4 Size (outside diameter and minimum wall thickness).
3.1.5 Length (specific or random).
3.1.6 Optional requirements (product analysis, hydrostatic or nondestructive electric test, crush test, and bar coding).
3.1.7 Test report required (see Certification Section of Specification A 450/A 450M).
3.1.8 Specification designation.
3.1.9 Optional supplementary requirements are provided and when desired, shall be designated on the order.
This specification is under the jurisdiction ofASTM CommitteeA01 on Steel, Stainless Steel and RelatedAlloys and is the direct responsibility of SubcommitteeA01.09
on Carbon Steel Tubular Products.
Current edition approved June 10, 2001. Published August 2001.
This specification is under the jurisdiction ofASTM CommitteeA01 on Steel, Stainless Steel and RelatedAlloys and is the direct responsibility of SubcommitteeA01.09
on Carbon Steel Tubular Products.
Current edition approved Nov. 1, 2007. Published January 2008. Originally approved in 2001. Last previous edition approved in 2002 as A 1020/A 1020M - 02.
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at service@astm.org. For Annual Book ofASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
A 1020/A 1020M – 02 (2007)
TABLE 1 Chemical Requirements, Composition, %
Element Grade A Grade C Grade D
Low Carbon Medium Carbon Carbon Manganese
Steel Steel 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
4. General Requirements
4.1 Material furnished under this specification shall conform to the applicable requirements of the current edition of
Specification A 450/A 450M, unless otherwise provided herein.
5. Materials and Manufacture
5.1 All steels shall be killed.
5.2 The tubes shall be made by an automatic fusion welding process with no addition of filler metal.
6. Heat Treatment
6.1 After welding, all tubes shall be heat treated at a temperature of 1650°F [900°C] or higher and followed by cooling in air
or in the cooling chamber of a controlled atmosphere furnace. Cold drawn tubes shall be heat treated after the final cold-draw pass
at a temperature of 1200°F [650°C] or higher.
7. Chemical Composition
7.1 The steel shall conform to the requirements as to chemical composition prescribed in Table 1.
7.2 When a grade is ordered under this specification, supplying an alloy grade that specifically requires the addition of any
element other than those listed in Table 1 is not permitted.
8. ProductAnalysis
8.1 For the purpose of product analysis, a lot consists of 250 pieces for sizes up to and including 3 in. [76.2 mm] OD and 100
pieces for sizes over 3 in. [76.2 mm] OD; or when tubes are identified by heat number, all tubes within that heat.
8.2 When requested on the purchase order, a product analysis shall be made by the manufacturer or supplier from one tube per
lot. The chemical composition thus determined shall conform to the requirements specified.
8.3 If the original test for product analysis fails, retest of two additional tubes per lot shall be made. Both retests, for the
elements in question, shall meet the requirements of the specification; otherwise all remaining material in the heat or lot shall be
rejected; or at the option of the producer, each tube may be individually tested for acceptance and those pieces that do not meet
the requirements of the specification shall be rejected.
9. Tensile and Hardness Requirements
9.1 The term lot for tension and hardness tests applies to all tubes prior to cutting, of the same specified outside diameter and
wall thickness, which are produced from the same heat of steel. When final heat treatment is in a batch-type furnace, a lot shall
include only those tubes of the same size and the same heat which are heat treated in the same furnace charge. When the final heat
treatment is in a continuous furnace, a lot shall include all tubes of the same size and heat, heat treated in the same furnace, at the
same temperature, time at heat, and furnace speed.
9.2 For Grade A tubes, hardness test shall be made on specimens from each
...
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