1、Designation: A 943/A 943M 01 (Reapproved 2005)Standard Specification forSpray-Formed Seamless Austenitic Stainless Steel Pipes1This standard is issued under the fixed designationA 943/A 943M; the number immediately following the designation indicates the yearof original adoption or, in the case of r
2、evision, the year of last revision. A number in parentheses indicates the year of last reapproval.A superscript epsilon (e) 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 hi
3、gh-temperature 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 supplement
4、ary 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 i
5、n ANSI 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 inch-pound units or SI unitsare to be regarded separately as standard. Within the text, theSI units are shown in brackets. The valu
6、es 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 i
7、n 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:2A 262 Practices for Detecting Susceptibility to Intergranu-lar Attack in
8、Austenitic Stainless SteelsA 450/A 450M Specification for General Requirements forCarbon, Ferritic Alloy, and Austenitic Alloy Steel TubesA 941 Terminology Relating to Steel, Stainless Steel, Re-lated Alloys, and FerroalloysA 999/A 999M Specification for General Requirements forAlloy and Stainless S
9、teel PipeE112 Test Methods for Determining Average Grain SizeE 381 Method of Macroetch Testing Steel Bars, Billets,Blooms, and ForgingsE 527 Practice for Numbering Metals and Alloys (UNS)2.2 ANSI/ASME Standards:3B1.20.1 Pipe Threads, General PurposeB36.10 Welded and Seamless Wrought Steel PipeB36.19
10、 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 A 941.3.2 Definitions of Terms Specific to This Standard:3.2.1 sprayformeddenotes the fabrication of differentsha
11、pes 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 s
12、pray 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. Orde
13、ring Information4.1 Orders for material to this specification should includethe following, as required, to describe the desired materialadequately:4.1.1 Quantity (feet, centimetres, or number of lengths),1This specification is under the jurisdiction of ASTM Committee A01 on Steel,Stainless Steel, an
14、d Related Alloys and is the direct responsibility of SubcommitteeA01.10 on Stainless and Alloy Steel Tubular Products.Current edition approved Sept. 1, 2005. Published October 2005. Originallyapproved in 1995. Last previous edition approved in 2001 as A 943/A 943M 01.2For referenced ASTM standards,
15、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.3Available from American National Standards Institute (ANSI), 25 W. 43rd St.,4th Floor, New Y
16、ork, NY 10036.4Available from Society of Automotive Engineers (SAE), 400 CommonwealthDr., Warrendale, PA 15096-0001.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.4.1.2 Name of material (austenitic steel pipe),4.1.3 Grade (Table 1),
17、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 A 999/A 999M),4.1.7 Optional requirements (Section 8),4.1.8 Test report required (Certification Section of Spec
18、ifi-cation A 999/A 999M),TABLE 1 Chemical RequirementsGrade UNSDesigna-tionAComposition, % ColumbiumplusTantalumComposition, %Carbon,maxBManga-nese,maxBPhospho-rus,maxSulfur,maxSilicon,maxBNickel Chromium Molyb-denumTitanium Tantalum,maxNitrogenCVanadium Copper CeriumTP304 S30400 0.08 2.00 0.045 0.0
19、30 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 0.030 0.75 8.013.0 18.020.0 . . . . . . . . . . . . . . . . . . . . . . . .TP304N S30451
20、 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 . . . . . . . . .TP309Cb S30940 0.08 2.00 0.045 0.030 0.75 12.016.0 22.024.0 0.75 max . . . 10 3 Cmin1.10max. .
21、. . .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. . . . .TP309S S30908 0.08 2.00 0.045 0.030 0.75 12.015.0 22.024.0 0.75 max . . . . . .
22、. . . . . . . . . . . . . . .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 . . . . . . . . . . . . . . . . . . . . . . . .TP310HCb S31041 0.040.10 2.00 0.045 0.030 0.75 19.022.0 24.02
23、6.0 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 14.016.0 1.001.0 0.30.6 . . . . . . . . . . . . . . . . . .TP316 S31600 0.08 2.00 0.045 0.
24、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 2.00 0.045 0.030 0.75 10.015.0 16.018.0 2.003.00 . . . . . . . . . . . . . . . . . . . . .
25、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 . . . . . . . . .TP317 S31700 0.08 2.00 0.045 0.030 0.75 11.014.0 18.020.0 3.04.0 . . . . .
26、 . . . . . . . . . . . . . . . .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. . . . . .TP321H S32109 0.040.10 2.00 0.045 0.030 0.75 9.013.0 17.019.0 . . .F. . . . . .TP347 S
27、34700 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 . . . . . .G0.10 . . . .TP348H S34809 0.040.10 2.00 0.045 0.030 0.75 9.013.0 17.019.0 . .
28、 . . . .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 . . . . . . . . . . . . 0.150.40 . . . . . . . . .TPXM-15 S38100 0.08 2.00 0.030 0.030 1.502.50 17.518.5 1
29、7.019.0 . . . . . . . . . . . . . . . . . . . . . . . .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 0.030 1.00 2.23.7 17.019.0 . . . . . . . . . . . . 0.200.40 . . . . . . . . . . . S31254
30、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 . . . . . . 0.030.08. . . S31050 0.030 2.00 0.020 0.015 0.4 20.523.5 24.026.0 1.02.0 . . . . . . . . .
31、 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 . . . . . . . . . 0.10 max . . . 0.75 max . . . . . S31726 0.030 2.00 0.045 0.030 0.75 13.517.5 1
32、7.020.0 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 1.00 16.018.0 23.025.0 4.05.0 . . . 0.1 max . . . 0.400.60 . . . . . . . . .ANew designat
33、ion established in accordance with Practice E 527 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 agreement between the purchaser and manufacturer.DThe boron content shall be in the range 0.0
34、040.008.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 columbium (niobium) plus tantalum content shall be not less than ten times the carbon c
35、ontent 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 %.A 943/A 943M 01 (2005)24.1.9 Specification number, and4.1.10 Special requirements or any supplementary require-ments selected, or both.5. Gener
36、al Requirements5.1 Material furnished under this specification shall con-form to the applicable requirements of the current edition ofSpecification A 999/A 999M unless otherwise provided herein.6. Materials and Manufacture6.1 MeltingThe steel shall be made by the electric-furnace process or by other
37、 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 the ingots remeltedfrom a single primary heat.6.1.1
38、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 report required by the HeatAnalysis section of this s
39、pecification or the Certificationsection of Specification A 999/A 999M the type of meltingused to 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 other similarprocesses as in 6.1.6.2.2 The pipe shal
40、l 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 specified by the purchaser, pipe may be fur-nished as-
41、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 purchaser may request that a passivating treat-ment be ap
42、plied.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 inwater or rapidly cooling by other means.6.3.2 All
43、 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 1040C. If the HGrade is furnished in the spray-formed c
44、ondition 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 solution treating temperature forTP309H, TP309HCb,
45、 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 temperature above 1950F1065C may impair the resistance to
46、 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 usedsubsequent to the initial high temperature solution a
47、nneal (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, TP310H andTP310HCb, shall be ASTM No. 6 or coarser.7. C
48、hemical 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 of pipeshall consist of the following number of le
49、ngths 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 7.8.3 If the analysis of one of the tests specified in 8.
