ASTM_A_192_-_A_192M_-_02_2012.pdf

Designation:A192/A192M02(Reapproved 2012)Standard Specification forSeamless Carbon Steel Boiler Tubes for High-PressureService1This standard is issued under the fixed designation A192/A192M;the number immediately following the designation indicates the yearof 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.This standard has been approved for use by agencies of the Department of Defense.1.Scope1.1 This specification2covers minimum-wall-thickness,seamless carbon steel boiler and superheater tubes for high-pressure service.1.2 The tubing sizes and thicknesses usually furnished tothis specification are12in.to 7 in.12.7 to 177.8 mm outsidediameter and 0.085 to 1.000 in.2.2 to 25.4 mm,inclusive,inminimum wall thickness.Tubing having other dimensions maybe furnished,provided such tubes comply with all otherrequirements of this specification.1.3 Mechanical property requirements do not apply totubing smaller than18in.3.2 mm inside diameter or 0.015 in.0.4 mm 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.Combining values from thetwo systems may result in nonconformance with the specifi-cation.The inch-pound units shall apply unless the“M”designation of this specification is specified in the order.2.Referenced Documents2.1 ASTM Standards:3A450/A450M Specification for General Requirements forCarbon and Low Alloy Steel Tubes3.Ordering Information3.1 Orders for material under this 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(seamless tubes),3.1.3 Manufacture(hot-finished or cold-finished),3.1.4 Size(outside diameter and minimum wall thickness),3.1.5 Length(specific or random),3.1.6 Optional requirements(Section 8),3.1.7 Test report required(see section on Certification ofSpecification A450/A450M),3.1.8 Specification designation,and3.1.9 Special requirements.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.Manufacture5.1 Tubes shall be made by the seamless process and shallbe either hot-finished or cold-finished,as specified.6.Heat Treatment6.1 Hot-finished tubes need not be heat treated.Cold-finished tubes shall be heat treated after the final cold-finishingat a temperature of 1200F 650C or higher.7.Chemical Composition7.1 The steel shall conform to the following requirements asto chemical composition:Carbon,%0.060.18Manganese,%0.270.63Phosphorus,max,%0.035Sulfur,max,%0.035Silicon,max,%0.257.2 Supplying an alloy grade of steel that specificallyrequires the addition of any element other than those listed in7.1 is not permitted.1This specification 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 1936.Last previous edition approved in 2007 as A192/A192M02(2007).DOI:10.1520/A0192_A0192M-02R12.2For ASME Boiler and Pressure Vessel Code applications see related Specifi-cation SA-192 in Section II of that Code.3For 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.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1Copyright by ASTM Intl(all rights reserved);8.Product Analysis8.1 When requested on the purchase order,a product analy-sis shall be made by the supplier from one tube per 100 piecesfor sizes over 3 in.76.2 mm and one tube per 250 pieces forsizes 3 in.76.2 mm and under;or when tubes are identifiedby heat,one tube per heat shall be analyzed.The chemicalcomposition thus determined shall conform to the requirementsspecified.8.2 If the original test for product analysis fails,retests oftwo additional billets or tubes shall be made.Both retests,forthe elements in question,shall meet the requirements of thespecification;otherwise all remaining material in the heat or lot(see Note 1)shall be rejected or,at the option of the producer,each billet or tube may be individually tested for acceptance.Billets or tubes which do not meet the requirements of thespecification shall be rejected.NOTE1Alot consists of 250 tubes for sizes 3 in.76.2 mm and underand of 100 tubes for sizes over 3 in.76.2 mm,prior to cutting to le