1、Designation: A943/A943M 01 (Reapproved 2009)Standard Specification forSpray-Formed Seamless Austenitic Stainless Steel Pipes1This standard is issued under the fixed designation A943/A943M; the number immediately following the designation indicates the yearof original adoption or, in the case of revi
2、sion, 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. Scope1.1 This specification covers spray-formed seamless auste-nitic stainless steel pipe intended for high-t
3、emperature andgeneral corrosive service.1.2 Grades TP304H, TP309H, TP309HCb, TP310H,TP310HCb, TP316H, TP321H, TP347H, and TP348H aremodifications of Grades TP304, TP309Cb, TP309S, TP310Cb,TP310S, TP316, TP321, TP347, and TP348, and are intendedfor high-temperature service.1.3 Optional supplementary
4、requirements are provided forpipe where a greater degree of testing is desired. Thesesupplementary requirements call for additional tests to be madeand, when desired, one or more of these may be specified in theorder.1.4 Appendix X1 lists the dimensions of seamless stainlesssteel pipe as shown in AN
5、SI B36.19. Pipe having otherdimensions may be furnished provided such pipe complieswith all other requirements of this specification.1.5 The values stated in either SI units or inch-pound unitsare to be regarded separately as standard. The values stated ineach system may not be exact equivalents; th
6、erefore, eachsystem shall be used independently of the other. Combiningvalues from the two systems may result in non-conformancewith the standard.1.5.1 Within the text, the SI units are shown in brackets.1.5.2 The inch-pound units shall apply unless the “M”designation of this specification is specif
7、ied in the order.NOTE 1The dimensionless designator NPS (nominal pipe size) hasbeen substituted in this standard for such traditional terms as “nominaldiameter,” “size,” and “nominal size.”2. Referenced Documents2.1 ASTM Standards:2A262 Practices for Detecting Susceptibility to IntergranularAttack i
8、n Austenitic Stainless SteelsA450/A450M Specification for General Requirements forCarbon and Low Alloy Steel TubesA941 Terminology Relating to Steel, Stainless Steel, Re-lated Alloys, and FerroalloysA999/A999M Specification for General Requirements forAlloy and Stainless Steel PipeE112 Test Methods
9、for Determining Average Grain SizeE381 Method of Macroetch Testing Steel Bars, Billets,Blooms, and ForgingsE527 Practice for Numbering Metals and Alloys in theUnified Numbering System (UNS)2.2 ANSI/ASME Standards:3B1.20.1 Pipe Threads, General PurposeB36.10 Welded and Seamless Wrought Steel PipeB36.
10、19 Stainless Steel Pipe2.3 Other Standard:4SAE J1086 Practice for Numbering Metals and Alloys(UNS)3. Terminology3.1 For definitions of terms used in this specification, referto Terminology A941.3.2 Definitions of Terms Specific to This Standard:3.2.1 sprayformeddenotes the fabrication of differentsh
11、apes of a metallic material by deposition of a spray,consisting of droplets, solid particles, and particles that arepartially solid, onto a moving substrate.3.2.1.1 DiscussionThe spray is produced by gas atomiza-tion of the liquid metal or alloy. On impingement with thesubstrate, the species of the
12、spray consolidate and solidifycompletely to produce a product that is essentially free ofporosity. The metallurgical characteristics of the spray-formedproduct are controlled primarily by the thermal condition of thespray, and that of the surface of the metallic deposit formed onthe substrate.4. Ord
13、ering Information4.1 Orders for material to this specification should includethe following, as required, to describe the desired materialadequately:1This specification is under the jurisdiction of ASTM Committee A01 on Steel,Stainless Steel and Related Alloys and is the direct responsibility of Subc
14、ommitteeA01.10 on Stainless and Alloy Steel Tubular Products.Current edition approved Oct. 1, 2009. Published February 2010. Originallyapproved in 1995. Last previous edition approved in 2005 as A943/A943M 01(2005). DOI: 10.1520/A0943_A0943M-01R09.2For referenced ASTM standards, visit the ASTM websi
15、te, 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.3Available from American National Standards Institute (ANSI), 25 W. 43rd St.,4th Floor, New York, NY 10036, http:
16、/www.ansi.org.4Available from SAE International (SAE), 400 Commonwealth Dr., Warrendale,PA 15096-0001, http:/www.sae.org.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.4.1.1 Quantity (feet, centimetres, or number of lengths),4.1.2 N
17、ame of material (austenitic steel pipe),4.1.3 Grade (Table 1),4.1.4 Size (NPS or outside diameter and schedule number oraverage wall thickness or other),4.1.5 Length (specific or random) (Section 11),4.1.6 End finish (Section on Ends of Specification A999/A999M),4.1.7 Optional requirements (Section
18、8),4.1.8 Test report required (Certification Section of Specifi-cation A999/A999M),4.1.9 Specification number, andTABLE 1 Chemical RequirementsGrade UNSDesigna-tionAComposition, % ColumbiumplusTantalumComposition, %Carbon,maxBManga-nese,maxBPhospho-rus,maxSulfur,maxSilicon,maxBNickel Chromium Molyb-
19、denumTitanium Tantalum,maxNitrogenCVanadium Copper CeriumTP304 S30400 0.08 2.00 0.045 0.030 0.75 8.011.0 18.020.0 . . . . . . . . . . . . . . . . . . . . . . . .TP304H S30409 0.040.10 2.00 0.045 0.030 0.75 8.011.0 18.020.0 . . . . . . . . . . . . . . . . . . . . . . . .TP304L S30403 0.030 2.00 0.045
20、 0.030 0.75 8.013.0 18.020.0 . . . . . . . . . . . . . . . . . . . . . . . .TP304N S30451 0.08 2.00 0.045 0.030 0.75 8.011.0 18.020.0 . . . . . . . . . . . . 0.100.16 . . . . . . . . .TP304LN S30453 0.030 2.00 0.045 0.030 0.75 8.011.0 18.020.0 . . . . . . . . . . . . 0.100.16 . . . . . . . . .TP309C
21、b S30940 0.08 2.00 0.045 0.030 0.75 12.016.0 22.024.0 0.75 max . . . 10 3 Cmin1.10max. . . . .TP309H S30909 0.040.10 2.00 0.045 0.030 0.75 12.015.0 22.024.0 . . . . . . . . . . . . . . . . . . . . . . . .TP309HCb S30941 0.040.10 2.00 0.045 0.030 0.75 12.016.0 22.024.0 0.75 max . . . 10 3 Cmin1.10max
22、. . . . .TP309S S30908 0.08 2.00 0.045 0.030 0.75 12.015.0 22.024.0 0.75 max . . . . . . . . . . . . . . . . . . . . .TP310Cb S31040 0.08 2.00 0.045 0.030 0.75 19.022.0 24.026.0 0.75 max . . . 10 3 Cmin1.10max. . . . .TP310H S31009 0.040.10 2.00 0.045 0.030 0.75 19.022.0 24.026.0 . . . . . . . . . .
23、 . . . . . . . . . . . . . .TP310HCb S31041 0.040.10 2.00 0.045 0.030 0.75 19.022.0 24.026.0 0.75 max . . . 10 3 Cmin1.10max. . . . .TP310S S31008 0.08 2.00 0.045 0.030 0.75 19.022.0 24.026.0 0.75 max . . . . . . . . . . . . . . . . . . . . . . . S31272D0.080.121.502.00 0.030 0.015 0.30.7 14.016.0 1
24、4.016.0 1.001.0 0.30.6 . . . . . . . . . . . . . . . . . .TP316 S31600 0.08 2.00 0.045 0.030 0.75 11.014.0 16.018.0 2.003.00 . . . . . . . . . . . . . . . . . . . . .TP316H S31609 0.040.10 2.00 0.045 0.030 0.75 11.014.0 16.018.0 2.003.00 . . . . . . . . . . . . . . . . . . . . .TP316L S31603 0.030 2
25、.00 0.045 0.030 0.75 10.015.0 16.018.0 2.003.00 . . . . . . . . . . . . . . . . . . . . .TP316N S31651 0.08 2.00 0.045 0.030 0.75 11.014.0 16.018.0 2.003.00 . . . . . . . . . 0.100.16 . . . . . . . . .TP316LN S31653 0.030 2.00 0.045 0.030 0.75 11.014.0 16.018.0 2.003.00 . . . . . . . . . 0.100.16 .
26、. . . . . . . .TP317 S31700 0.08 2.00 0.045 0.030 0.75 11.014.0 18.020.0 3.04.0 . . . . . . . . . . . . . . . . . . . . .TP317L S31703 0.030 2.00 0.045 0.030 0.75 11.015.0 18.020.0 3.04.0 . . . . . . . . . . . . . . . . . . . . .TP321 S32100 0.08 2.00 0.045 0.030 0.75 9.013.0 17.019.0 . . .E. . . .
27、. .TP321H S32109 0.040.10 2.00 0.045 0.030 0.75 9.013.0 17.019.0 . . .F. . . . . .TP347 S34700 0.08 2.00 0.045 0.030 0.75 9.013.0 17.019.0 . . . . . .G. . . . .TP347H S34709 0.040.10 2.00 0.045 0.030 0.75 9.013.0 17.019.0 . . . . . .H. . . . .TP348 S34800 0.08 2.00 0.045 0.030 0.75 9.013.0 17.019.0
28、. . . . . .G0.10 . . . .TP348H S34809 0.040.10 2.00 0.045 0.030 0.75 9.013.0 17.019.0 . . . . . .H0.10 . . . .TPXM-10 S21900 0.08 8.010.0 0.045 0.030 1.00 5.57.5 19.021.5 . . . . . . . . . . . . 0.150.40 . . . . . . . . .TPXM-11 S21903 0.04 8.010.0 0.045 0.030 1.00 5.507.5 19.021.5 . . . . . . . . .
29、 . . . 0.150.40 . . . . . . . . .TPXM-15 S38100 0.08 2.00 0.030 0.030 1.502.50 17.518.5 17.019.0 . . . . . . . . . . . . . . . . . . . . . . . .TPXM-19 S20910 0.06 4.06.0 0.045 0.030 1.00 11.513.5 20.523.5 1.503.00 . . . 0.100.30 . . . 0.200.40 0.100.30 . . . . . .TPXM-29 S24000 0.08 11.514.5 0.060
30、0.030 1.00 2.23.7 17.019.0 . . . . . . . . . . . . 0.200.40 . . . . . . . . . . . S31254 0.020 1.00 0.030 0.010 0.80 17.518.5 19.520.5 6.06.5 . . . . . . . . . 0.180.22 . . . 0.501.00 . . . . . S30815 0.050.10 0.80 0.040 0.030 1.402.00 10.012.0 20.022.0 . . . . . . . . . . . . 0.140.20 . . . . . . 0
31、.030.08. . . S31050 0.030 2.00 0.020 0.015 0.4 20.523.5 24.026.0 1.02.0 . . . . . . . . . 0.090.15 . . . . . . . . . . . S30600 0.018 2.00 0.02 0.02 3.74.3 14.015.5 17.018.5 0.20 max . . . . . . . . . . . . . . . 0.50 max . . . . . S31725 0.030 2.00 0.045 0.030 0.75 13.517.5 18.020.0 4.05.0 . . . .
32、. . . . . 0.10 max . . . 0.75 max . . . . . S31726 0.030 2.00 0.045 0.030 0.75 13.517.5 17.020.0 4.05.0 . . . . . . . . . 0.100.20 . . . 0.75 max . . . . . S32615 0.07 2.00 0.045 0.030 4.86.0 19.022.0 16.519.5 0.301.50 . . . . . . . . . . . . . . . 1.502.50 . . . . . S34565 0.030 5.07.0 0.030 0.010
33、1.00 16.018.0 23.025.0 4.05.0 . . . 0.1 max . . . 0.400.60 . . . . . . . . .ANew designation established in accordance with Practice E527 and SAE J1086, Practice for Numbering Metals and Alloys (UNS).BMaximum, unless otherwise indicated.CThe method of analysis for nitrogen shall be a matter of agree
34、ment between the purchaser and manufacturer.DThe boron content shall be in the range 0.0040.008.EThe titanium content shall be not less than five times the carbon content and not more than 0.70 %.FThe titanium content shall be not less than four times the carbon content and not more than 0.60 %.GThe
35、 columbium (niobium) plus tantalum content shall be not less than ten times the carbon content and not more than 1.00 %.HThe columbium (niobium) plus tantalum content shall be not less than eight times the carbon content and not more than 1.0 %.A943/A943M 01 (2009)24.1.10 Special requirements or any
36、 supplementary require-ments selected, or both.5. General Requirements5.1 Material furnished under this specification shall con-form to the applicable requirements of the current edition ofSpecification A999/A999M unless otherwise provided herein.6. Materials and Manufacture6.1 MeltingThe steel shal
37、l be made by the electric-furnace process or by other similar processes. The primarymelting may incorporate separate degassing or refining andmay be followed by secondary melting, using electroslagremelting or vacuum-arc remelting. If secondary melting isemployed, the heat shall be defined as all of
38、 the ingots remeltedfrom a single primary heat.6.1.1 If a specified type of melting is required by thepurchaser, it shall be stated on the purchase order.6.1.2 When specified on the purchase order, or when aspecific type of melting has been specified, the materialmanufacturer shall include with the
39、report required by the HeatAnalysis section of this specification or the Certificationsection of Specification A999/A999M the type of melting usedto produce the material.6.2 Pipe Manufacture:6.2.1 The pipe shall be made by the spray forming processusing the steel from the electric steel process or o
40、ther similarprocesses as in 6.1.6.2.2 The pipe shall be made by spraying the melt on to athin-walled collector tube. The as-spray formed pipe shall bemachined on both the inner and outer surfaces. The remainingmetal shall be homogeneous, sound, and meet the requirementsof Section 11.6.2.3 Unless spe
41、cified by the purchaser, pipe may be fur-nished as-spray formed or as-spray formed and cold finished.6.2.4 All pipe shall be furnished in the descaled conditionand be free of contaminating iron particles. Pickling, blastingor surface finishing is not mandatory when pipe is brightannealed. The purcha
42、ser may request that a passivating treat-ment be applied.6.3 Heat Treatment:6.3.1 All pipe shall be furnished in the heat-treated condi-tion. The heat-treatment procedure, except for “H” grades,S30815 and S31254, shall consist of heating the pipe to aminimum temperature of 1900F 1040C and quenching
43、inwater or rapidly cooling by other means.6.3.2 All H grades shall be furnished in the solution-treatedcondition. If cold working is involved in processing, theminimum solution treating temperature for Grades TP321H,TP347H, and TP348H shall be 2000F 1100C and forGrades TP304H, and TP316H, 1900F 1040
44、C. If the HGrade is furnished in the spray-formed condition only, theminimum solution treating temperatures for Grades TP321H,TP347H, and TP348H shall be 1925F 1050C, and forGrades TP304H, and TP316H, 1900F 1040C. The mini-mum solution treating temperature for S30815 shall be 1920F1050C. The minimum
45、 solution treating temperature forTP309H, TP309HCb, TP310H, and TP310HCb shall be1900F 1040C.6.3.3 The heat-treatment procedure for S31254 shall consistof heating the pipe to a minimum temperature of 2100F1150C and quenching in water or rapidly cooling by othermeans.6.3.4 A solution annealing temper
46、ature above 1950F1065C may impair the resistance to intergranular corrosionafter subsequent exposure to sensitizing conditions inTP309HCb, TP310HCb, TP321, TP321H, TP347, TP347H,TP348, and TP348H. When specified by the purchaser, a lowertemperature stabilization or re-solution anneal shall be usedsu
47、bsequent to the initial high temperature solution anneal (seeSupplementary Requirement S6).6.4 Grain Size:6.4.1 The grain size of TP304H, TP316H, TP321H,TP347H and TP348H, as determined in accordance with TestMethods E112, shall be ASTM No. 7 or coarser.6.4.2 The grain size of TP309H, TP309HCb, TP31
48、0H andTP310HCb, shall be ASTM No. 6 or coarser.7. Chemical Composition7.1 The steel shall conform to the requirements as tochemical composition prescribed in Table 1.8. Product Analysis8.1 At the request of the purchaser, an analysis of two pipesfrom each lot shall be made by the manufacturer. A lot
49、 of pipeshall consist of the following number of lengths of the samesize and wall thickness from any one heat of stainless steel:NPS Designator Lengths of Pipe in LotUnder 22 to 5 200 or fraction thereof6 and over 100 or fraction thereof8.2 The results of these analyses shall be reported to thepurchaser or the purchasers representative, and shall conformto the requirements specified in Section 7.8
