1、Designation:A1020/A1020M02(Reapproved 2012)Standard Specification forSteel Tubes,Carbon and Carbon Manganese,FusionWelded,for Boiler,Superheater,Heat Exchanger andCondenser Applications1This standard is issued under the fixed designation A1020/A1020M;the number immediately following the designation
2、indicates theyear of original adoption or,in the case of revision,the year of last revision.A number in parentheses indicates the year of lastreapproval.A superscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope1.1 This specification covers minimum wall thickn
3、esswelded tubes made from carbon and carbon manganese steelslisted 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 tothis specification are14to 5 in.6.3 to 127 mm in outsidediameter
4、and 0.015 to 0.375 in.0.4 to 9.5 mm,inclusive,inwall thickness.Tubing having other dimensions may be fur-nished provided such tubes comply with all other requirementsof this specification.1.3 Mechanical property requirements do not apply totubing smaller than18in.3.2 mm in inside diameter or 0.015in
5、.0.4 mm in thickness.1.4 The values stated in either inch-pound units or SI unitsare to be regarded separately as standard.Within the text,theSI units are shown in brackets.The values stated in eachsystem are not exact equivalents;therefore,each system mustbe used independently of the other.Combinin
6、g values from thetwo systems may result in nonconformance with the specifi-cation.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 andwhen desired,shall be so stated on the purchase order.1.6
7、 This standard does not purport to address all of thesafety concerns,if any,associated with its use.It is theresponsibility of the user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory requirements prior to use.2.Referenced Documen
8、ts2.1 ASTM Standards:2A450/A450M Specification for General Requirements forCarbon and Low Alloy Steel TubesE213 Practice for Ultrasonic Testing of Metal Pipe andTubingE273 Practice for Ultrasonic Testing of the Weld Zone ofWelded Pipe and Tubing3.Ordering Information3.1 Orders for material under thi
9、s specification shouldinclude the following,as required,to describe the desiredmaterial adequately:3.1.1 Quantity(feet,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
10、 Optional requirements(product analysis,hydrostaticor nondestructive electric test,crush test,and bar coding).3.1.7 Test report required(see Certification Section ofSpecification A450/A450M).3.1.8 Specification designation.3.1.9 Optional supplementary requirements are providedand when desired,shall
11、be designated on the order.4.General Requirements4.1 Material furnished under this specification shall con-form to the applicable requirements of the current edition ofSpecification A450/A450M,unless otherwise provided herein.5.Materials and Manufacture5.1 All steels shall be killed.1This specificat
12、ion is under the jurisdiction of ASTM Committee A01 on Steel,Stainless Steel and Related Alloys and is the direct responsibility of SubcommitteeA01.09 on Carbon Steel Tubular Products.Current edition approved Sept.1,2012.Published November 2012.Originallyapproved in 2001.Last previous edition approv
13、ed in 2007 as A1020/A1020M-02(2007).DOI:10.1520/A1020_A1020M-02R12.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards volume information,refer to the standards Document Summary page onthe ASTM website
14、.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1Copyright by ASTM Intl(all rights reserved);5.2 The tubes shall be made by an automatic fusion weldingprocess with no addition of filler metal.6.Heat Treatment6.1 After welding,all tubes sha
15、ll be heat treated at atemperature of 1650F 900C or higher and followed bycooling in air or in the cooling chamber of a controlledatmosphere furnace.Cold drawn tubes shall be heat treatedafter the final cold-draw pass at a temperature of 1200F650C or higher.7.Chemical Composition7.1 The steel shall
16、conform to the requirements as tochemical composition prescribed in Table 1.7.2 When a grade is ordered under this specification,sup-plying an alloy grade that specifically requires the addition ofany element other than those listed in Table 1 is not permitted.8.Product Analysis8.1 For the purpose of product analysis,a lot consists of 250pieces for sizes up to and including 3 in.76.2 mm OD and100 pieces for sizes over 3 in.76.2 mm OD;or when tubesare identified by heat number,all tubes within th
