1、Designation: A 269 08Standard Specification forSeamless and Welded Austenitic Stainless Steel Tubing forGeneral Service1This standard is issued under the fixed designation A 269; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the
2、year of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon (e) 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. Scope*1.1 This specification covers g
3、rades of nominal-wall-thickness, stainless steel tubing for general corrosion-resistingand low- or high-temperature service, as designated in Table 1.1.2 The tubing sizes and thicknesses usually furnished tothis specification are14 in. (6.4 mm) in inside diameter andlarger and 0.020 in. (0.51 mm) in
4、 nominal wall-thickness andheavier.1.3 Mechanical property requirements do not apply totubing smaller than18 in. (3.2 mm) in inside diameter or 0.015in. (0.38 mm) in thickness.NOTE 1Additional testing requirements may apply for use in AS-ME B31.3 applications.1.4 Optional supplementary requirements
5、are provided and,when one or more of these are desired, each shall be so statedin the order.1.5 The values stated in inch-pound units are to be regardedas the standard.2. Referenced Documents2.1 ASTM Standards:2A 262 Practices for Detecting Susceptibility to Intergranu-lar Attack in Austenitic Stain
6、less SteelsA 370 Test Methods and Definitions for Mechanical Testingof Steel ProductsA 480/A 480M Specification for General Requirements forFlat-Rolled Stainless and Heat-Resisting Steel Plate,Sheet, and StripA 632 Specification for Seamless and Welded AusteniticStainless Steel Tubing (Small-Diamete
7、r) for General Ser-viceA 1016/A 1016M Specification for General Requirementsfor Ferritic Alloy Steel, Austenitic Alloy Steel, and Stain-less Steel TubesE 527 Practice for Numbering Metals and Alloys in theUnified Numbering System (UNS)2.2 ASME Piping Code:ASME B31.3 Process Piping32.3 Other Standard
8、:SAE J1086 Practice for Numbering Metals and Alloys(UNS)43. 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 o
9、r welded tubes),3.1.3 Grade (Table 1),3.1.4 Size (outside diameter and nominal wall thickness),3.1.5 Length (specific or random),3.1.6 Optional requirements (heat treatment, see Section 6;hydrostatic or nondestructive electric test, see Section 10),3.1.7 Test report required (see Section on Inspecti
10、on ofSpecification A 1016/A 1016M),3.1.8 Specification designation, and1This specification is under the jurisdiction of ASTM Committee A01 on Steel,Stainless Steel and Related Alloys and is the direct responsibility of SubcommitteeA01.10 on Stainless and Alloy Steel Tubular Products.Current edition
11、approved March 1, 2008. Published April 2008. Originallyapproved in 1944. Last previous edition approved in 2007 as A 269 07a.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,
12、 refer to the standards Document Summary page onthe ASTM website.3Available from American Society of Mechanical Engineers (ASME), ASMEInternational Headquarters, Three Park Ave., New York, NY 10016-5990, http:/www.asme.org.4Available from Society of Automotive Engineers (SAE), 400 CommonwealthDr., W
13、arrendale, PA 15096-0001, http:/www.sae.org.1*A Summary of Changes section appears at the end of this standard.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.TABLE1ChemicalRequirements%GradeComposition,%TP201TP201LNTP304TP304LTP304LN
14、TP 316TP316LTP316LNTP317TP 321TP 347TP348TPXM-10TPXM-11TPXM-15TPXM-19UNS DesignationAS20100S20153S30400S30403S30453S3160031603S31653S31700S32100S34700S34800S21900S21904S38100S20910Carbon0.15 max0.03 max0.08 max0.035 maxB0.035 maxB0.08 max0.035 maxB0.035 maxB0.08 max0.08 max0.08 max0.08 max0.08 max0.
15、04 max0.08 max0.06 maxManganese,maxC5.57.56.47.52.002.002.002.002.002.002.002.002.002.008.0010.008.0010.002.004.06.0Phosphorus,max.0.0600.0450.0450.0450.0450.0450.0450.0450.0450.0450.0450.0450.0450.0450.0300.045Sulfur,max.0.0300.0150.0300.0300.0300.0300.0300.0300.0300.0300.0300.0300.0300.0300.0300.0
16、30SiliconC1.000.751.001.001.001.001.001.001.001.001.001.001.001.001.502.501.00Nickel3.55.54.05.08.011.08.012.08.011.010.014.010.015.010.013.011.015.09.012.09.012.09.012.05.57.55.57.517.518.511.513.5Chromium16.018.016.017.518.020.018.020.018.020.016.018.016.018.016.018.018.020.017.019.017.019.017.019
17、.019.021.519.021.517.019.020.523.5Molybdenum.2.003.002.003.002.003.003.04.0.1.503.00Titanium.D.Columbium.103Cmin1.10 maxE.0.100.30Tantalum,max.0.10.NitrogenF0.250.100.25.0.100.16.0.100.16.0.150.400.150.40.0.200.40Vanadium.0.100.30Copper.1.00.Others.Co0.20max.A269082TABLE1ContinuedGradeComposition,%T
18、PXM-29.UNS DesignationAS24000S31254S31725S31726S31727S32053S30600AS32654S34565S35045N08367N08926N08904Carbon0.08 max0.020max0.035max0.035max0.030max0.030max0.018max0.020max0.030max0.060.100.030max0.020max0.020maxManganese,maxC11.514.51.002.002.001.001.002.02.0 4.05.07.01.502.002.002.00Phosphorus,max
19、.0.0600.0300.0450.0450.0300.0300.0200.0300.0300.0450.0400.0300.040Sulfur,max.0.0300.0150.0300.0300.0300.0100.0200.0050.0100.0150.0300.0100.030SiliconC1.000.801.001.001.001.003.74.30.501.001.001.000.501.00Nickel2.33.717.518.513.517.514.517.514.516.524.026.014.015.521.023.016.018.032.037.023.525.524.0
20、26.023.028.0Chromium17.019.019.520.518.020.017.020.017.519.022.024.017.018.524.025.023.025.025.029.020.022.019.021.019.023.0Molybdenum.6.06.54.05.04.05.03.84.55.06.00.20 max7.08.04.05.06.07.06.07.04.05.0Titanium.0.150.60.Columbium.0.10 max.Tantalum,max.NitrogenF0.200.400.180.220.20max0.100.200.150.2
21、10.170.220.450.550.400.60.0.180.250.150.250.10maxVanadium.Copper.0.501.00.2.84.0.0.50 max0.300.60.0.750.75max0.501.501.002.00Others.Al0.150.60.ANewdesignationestablishedinaccordancewithPracticeE527andSAEJ1086.BForsmalldiameterorthinwalls,orboth,wheremanydrawingpassesarerequired,acarbonmaximumof0.040
22、%isnecessaryingradesTP304L,TP304LN,316Land316LN.Smalloutsidediametertubesaredefinedasthosewithlessthan0.500in.12.7mminoutsidediameterandlightwallsarethoselessthan0.049in.1.2mminminimumwallthickness.CMaximum,unlessotherwiseindicated.DGradeTP321shallhaveatitaniumcontentofnotlessthanfivetimesthesumofth
23、ecarbonandnitrogencontentandnotmorethan0.70%.EGradeTP348shallhaveacolumbiumplustantalumcontentofnotlessthantentimesthecarboncontentandnotmorethan1.10%.FThemethodofanalysisfornitrogenshallbeamatterofagreementbetweenthepurchaserandmanufacturer.A2690833.1.9 Special requirements and any supplementary re
24、quire-ments selected.4. General Requirements4.1 Material furnished under this specification shall con-form to the applicable requirements of the current edition ofSpecification A 1016/A 1016M, unless otherwise providedherein.5. Manufacture5.1 The tubes shall be made by the seamless or weldedprocess.
25、5.2 At the manufacturers option, tubing may be furnishedeither hot finished or cold finished.6. Heat Treatment6.1 All material shall be furnished in the heat-treatedcondition. Except as provided in 6.2, the heat-treatment pro-cedure shall, except for S31254 and S32654 (see 6.3), S34565(see 6.4), N08
26、367 (see 6.8), N08904 (see 6.5) and N08926 (see6.7), consist of heating the material to a minimum temperatureof 1900 F (1040 C) and quenching in water or rapidlycooling by other means. Alternatively, for seamless tubes,immediately following hot forming while the temperature ofthe tubes is not less t
27、han the specified minimum solutiontreatment temperature, tubes may be individually quenched inwater or rapidly cooled by other means.6.2 Controlled structural or special service characteristicsshall be specified as a guide for the most suitable heattreatment. If the final heat treatment is at a temp
28、erature under1900 F and is so specified on the order, each tube shall bestenciled with the final heat treatment temperature in degreesFahrenheit after the suffix “HT”.6.3 S31254 and S32654 shall be heat-treated to a minimumtemperature of 2100 F (1150 C) followed by quenching inwater or rapidly cooli
29、ng by other means.6.4 S34565 shall be heat-treated in the range 2050 F (1120C) to 2140 F (1170 C) followed by quenching in water orrapidly cooling by other means.6.5 N08904 shall be heat treated to a minimum temperatureof 2000 F (1100 C) followed by quenching in water orrapidly cooling by other mean
30、s.6.6 A solution annealing temperature above 1950 F (1065C) may impair the resistance to intergranular corrosion aftersubsequent exposure to sensitizing conditions in TP321,TP347, and TP348. When specified by the purchaser, a lowertemperature stabilization or re-solution anneal shall be usedsubseque
31、nt to the initial high temperature solution anneal (seeSupplementary Requirement S3).6.7 N08926 shall be heat-treated to a minimum temperatureof 2010 F (1100 C) followed by quenching in water orrapidly cooling by other means.6.8 UNS N08367 should be solution annealed from 2025 F(1107 C) minimum foll
32、owed by rapid quenching.6.9 Solution annealing of S35045 shall consist of heatingthe material to a temperature of 2000 F (1093 C) minimumfor an appropriate time, followed by cooling in still air or at afaster rate.6.10 S31727 and S32053 shall be solution annealed in therange 1975 to 2155 F (1080 to
33、1180 C) followed byquenching in water or rapidly cooling by other means.7. Chemical Composition7.1 The steel shall conform to the requirements as tochemical composition as prescribed in Table 1.8. Product Analysis8.1 An analysis of either one billet or one length offlat-rolled stock or one tube shal
34、l be made from each heat. Thechemical composition thus determined shall conform to therequirements specified.8.2 A product analysis tolerance of Table number A1.1 inSpecification A 480/A 480M shall apply. The product analysistolerance is not applicable to the carbon content for materialwith a specif
35、ied maximum carbon of .04 % or less.8.3 If the original test for product analysis fails, retests oftwo additional billets, lengths of flat-rolled stock, or tubes shallbe made. Both retests for the elements in question shall meetthe requirements of the specification; otherwise all remainingmaterial i
36、n the heat or lot shall be rejected or, at the option ofthe producer, each billet, length of flat-rolled stock, or tubemay be individually tested for acceptance. Billets, lengths offlat-rolled stock, or tubes which do not meet the requirementsof the specification shall be rejected.9. Mechanical Test
37、s Required9.1 Flaring Test (Seamless Tubes) One test shall be madeon specimens from one end of one tube from each lot (Note 2)of finished tubes.NOTE 2The term lot applies to all tubes prior to cutting to length ofthe same nominal size and wall thickness which are produced from thesame heat of steel.
38、 When final heat treatment is in a batch-type furnace, aheat-treatment lot shall include only those tubes of the same size and fromthe same heat which are heat treated in the same furnace charge. When thefinal heat treatment is in a continuous furnace or when the heat-treatedcondition is obtained di
39、rectly by quenching after hot forming, the numberof tubes of the same size and from the same heat in a heat-treatment lotshall be determined from the size of the tubes as prescribed in Table 2.9.2 Flange Test (Welded Tubes)One test shall be made onspecimens from one end of one tube from each lot (No
40、te 2)offinished tubes.9.3 Hardness TestBrinell or Rockwell hardness determi-nation shall be made on specimens from two tubes from eachlot. The term lot applies to all tubes prior to cutting, of the sameTABLE 2 Number of Tubes in a Lot Heat Treated by theContinuous Process or by Direct Quench After H
41、ot FormingSize of Tube Size of Lot2 in. and over in outside diameter and0.200 in.(5.08 mm) and over in wall thicknessnot more than 50tubesLess than 2 in. but over 1 in. in outsidediameteror over 1 in. in outside diameter andunder0.200 in. (5.08 mm) in wall thicknessnot more than 75tubes1 in. or less
42、 in outside diameter not more than 125tubesA269084nominal diameter and wall thickness that are produced fromthe same heat of steel. When final heat treatment is in abatch-type furnace, a lot shall include only those tubes of thesame size and the same heat which are heat treated in the samefurnace ch
43、arge. When the final heat treatment is in a continuousfurnace or when the heat-treated condition is obtained directlyby quenching after hot forming, a lot shall include all tubes ofthe same size and heat, heat treated in the same furnace at thesame temperature, time at heat, and furnace speed, or al
44、l tubesof the same size and heat, hot formed and quenched in the sameproduction run.9.4 When more than one heat is involved, the flaring,flanging, and hardness test requirements shall apply to eachheat.9.5 Reverse Flattening TestFor welded tubes, one reverseflattening test shall be made on a specime
45、n from each 1500 ft(460 m) of finished tubing. Coiled tubing greater than 1500 ft(450 m) in length shall be sampled at both ends. A coil must becontinuous without any circumferential butt welds.10. Hydrostatic or Nondestructive Electric Test10.1 Each tube shall be subjected to the nondestructiveelec
46、tric test or the hydrostatic test. The type of test to be usedshall be at the option of the manufacturer, unless otherwisespecified in the purchase order.11. Hardness Requirements11.1 Grades TPXM-29, S34565, N08367, and N08926tubes shall have a hardness number not exceeding 256 HB/270HV or 100 HRB.
47、Grades TPXM-10, TPXM-11, and TPXM-19tubes shall have a hardness number not exceeding 269 HB/285HV or 25 HRC. S20100 and S31254 shall have a hardnessnumber not exceeding 220 HB/230 HV or 96 HRB. S20153and S32654 shall have a hardness number not exceeding 250HB/263 HV or 100 HRB. Tubes made from all o
48、ther gradesshall have a hardness number not exceeding 192 HB/200 HVor 90 HRB.11.2 For tubing less than 0.065 in. (1.65 mm) in wallthickness, it is permissible to use the Rockwell superficialhardness test or the Vickers hardness test. When the Vickerstest is used, the values of 11.1 will apply. The superficialhardness number for Grade TPXM-29 and S20153 tubes shallnot exceed 80 on the 30 T scale or 92 on the 15 T scale. Thehardness number for Grades TPXM-10, TPXM
