1、Designation:A63204(Reapproved 2014)Standard Specification forSeamless and Welded Austenitic Stainless Steel Tubing(Small-Diameter)for General Service1This standard is issued under the fixed designation A632;the number immediately following the designation indicates the year oforiginal adoption or,in
2、 the case of revision,the year of last revision.A number in parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope1.1 This specification covers grades of stainless steel tubingin sizes under12down to 0.050 i
3、n.(12.7 to 1.27 mm)in outsidediameter and wall thicknesses less than 0.065 in.down to 0.005in.(1.65 to 0.13 mm)for general corrosion-resisting and low-or high-temperature service,as designated in Table 1.NOTE1The grades of austenitic stainless steel tubing furnished inaccordance with this specificat
4、ion have been found suitable for low-temperature service down to 325F(200C)in which Charpy notched-bar impact values of 15 ftlbf(20 J),minimum,are required and thesegrades need not be impact tested.1.2 Optional supplementary requirements are provided and,when desired,shall be so stated in the order.
5、1.3 The values stated in inch-pound units are to be regardedas standard.The values given in parentheses are mathematicalconversions to SI units that are provided for information onlyand are not considered standard.2.Referenced Documents2.1 ASTM Standards:2A262 Practices for Detecting Susceptibility
6、to IntergranularAttack in Austenitic Stainless SteelsA380 Practice for Cleaning,Descaling,and Passivation ofStainless Steel Parts,Equipment,and SystemsE165 Practice for Liquid Penetrant Examination for GeneralIndustryE527 Practice for Numbering Metals and Alloys in theUnified Numbering System(UNS)2.
7、2 SAE Standard:SAE J 1086 Practice for Numbering Metals and Alloys(UNS)33.Ordering Information3.1 Orders for product under this specification should in-clude the following,as required,to describe the desiredmaterial adequately:3.1.1 Quantity(feet or number of lengths),3.1.2 Name of product(seamless
8、or welded tubes),3.1.3 Grade(see Table 1),3.1.4 Size(only two of the following:outside diameter,inside diameter,and average wall),3.1.5 Length(specific or random),3.1.6 Optional requirements(check analysis,see Section 7;hydrostatic,air underwater pressure test,or nondestructiveelectric test,see Sect
9、ion 13),3.1.7 Test report required,3.1.8 Specification designation,and3.1.9 Special requirements or any supplementary require-ments selected,or both.4.General Requirements4.1 Tubing furnished under this specification shall conformto the applicable requirements of the current edition of Speci-ficatio
10、n E165,unless otherwise provided herein.5.Manufacture5.1 ManufactureThe tubes shall be cold finished and shallbe made by the seamless or welded process.5.2 Heat TreatmentAll material shall be furnished in theheat-treated condition.The heat-treatment procedure shallconsist of heating the material to
11、a minimum temperature of1800F(980C)and quenching in water or rapidly cooling byother means.6.Chemical Composition6.1 The steel shall conform to the requirements as tochemical composition as specified in Table 1.7.Product Analysis7.1 When specified on the purchase order,an analysis ofeither one bille
12、t or one length of flat-rolled stock or one tubeshall be made from each heat.The chemical composition thusdetermined shall conform to the specified requirements.1This specification is under the jurisdiction of ASTM Committee A01 on Steel,Stainless Steel and Related Alloys and is the direct responsib
13、ility of SubcommitteeA01.10 on Stainless and Alloy Steel Tubular Products.Current edition approved Oct.1,2014.Published October 2014.Originallyapproved in 1969.Last previous edition approved in 2009 as A632 04(2009).DOI:10.1520/A0632-04R14.2For referenced ASTM standards,visit the ASTM website,www.as
14、tm.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.3Available from SAE International(SAE),400 Commonwealth Dr.,Warrendale,PA 15096-0001,http:/www.sae.org.Copyright ASTM Internat
15、ional,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1Copyright by ASTM Intl(all rights reserved);7.2 If the analysis made in accordance with 7.1 does notconform to the specified requirements,an analysis of eachbillet or length of flat-rolled stock or tube from the sa
16、me heatmay be made and all billets,stock,or tubes thus conforming tothe requirements shall be accepted so far as chemical compo-sition is concerned.8.Mechanical Properties8.1 Tensile RequirementsThe material shall conform tothe requirements as to tensile properties specified in Table 2.These mechanical properties apply to tubing18in.(3.2 mm)and larger in outside diameter by 0.015 in.(0.38 mm)in wallthickness and heavier.Smaller sizes are available meeting theminimum tensile strength specified in
