1、Designation:A376/A376M06 (Reapproved 2011) Designation: A376/A376M 12Used in USDOE-NE standardsStandard Specification forSeamless Austenitic Steel Pipe for High-TemperatureCentral-Station Service1This standard is issued under the fixed designation A376/A376M; the number immediately following the des
2、ignation 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.1. Scope*1.1 This specification2covers se
3、amless austenitic steel pipe intended for high-temperature central-station service. Among thegrades covered are five H grades and two nitrogen grades (304N and 316N) that are specifically intended for high-temperatureservice.1.2 Optional supplementary requirements (S1 through S10) are provided. Thes
4、e supplementary requirements specify additionaltests that will be made only when stated in the order, together with the number of such tests required.1.3 Grades TP321 and TP321H have lower strength requirements for nominal wall thicknesses greater than38 in. 9.5 mm.1.4 The values stated in either in
5、ch-pound units or SI units are to be regarded separately as standard. Within the text, the SI unitsare shown in brackets. The values stated in each system may not be exact equivalents; therefore, each system shall be usedindependently of the other. Combining values from the two systems may result in
6、 non-conformance with the standard. Theinch-pound units shall apply unless the “M” designation of this specification is specified in the order.NOTE 1The dimensionless designators NPS (nominal pipe size) hasand DN (Diametre Nominel) have been substituted in this standard for suchtraditional terms as
7、“nominal diameter,” “size,” and “nominal size.”2. Referenced Documents2.1 ASTM Standards:3A262 Practices for Detecting Susceptibility to Intergranular Attack in Austenitic Stainless Steels A941Terminology Relating toSteel, Stainless Steel, Re-lated Alloys, and Ferroal-loysA999/A999M Specification fo
8、r General Requirements for Alloy and Stainless Steel PipeE112 Test Methods for Determining Average Grain SizeE213 Practice for Ultrasonic Testing of Metal Pipe and TubingE381 Method of Macroetch Testing Steel Bars, Billets, Blooms, and ForgingsE426 Practice for Electromagnetic (Eddy-Current) Examina
9、tion of Seamless and Welded Tubular Products,Austenitic StainlessSteel and Similar Alloys2.2 Other Standards:SNT-TC-1A Personnel Qualification and Certification in Nondestructive Testing43. Terminology3.1DefinitionsFor definitions of terms used in this specification, refer to Terminology A941.4.Orde
10、ring Information43.1 Orders for material to this specification should include the following, as required to describe the desired materialadequately:43.1.1 Quantity (feet, centimetres, or number of lengths),43.1.2 Name of material (seamless austenitic steel pipe),1This specification is under the juri
11、sdiction ofASTM CommitteeA01 on Steel, Stainless Steel and RelatedAlloys and is the direct responsibility of SubcommitteeA01.10on Stainless and Alloy Steel Tubular Products.Current edition approved Oct.May 1, 2011.2012. Published MarchJune 2012. Originally approved in 1954. Last previous edition app
12、roved in 2006 as A376/A376M06.DOI: 10.1520/A0376_A0376M-06R11.10.1520/A0376_A0376M-12.2For ASME Boiler and Pressure Vessel Code applications see related Specification SA-376 in Section II of that Code.3For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Serv
13、ice at serviceastm.org. For Annual Book of ASTM Standardsvolume information, refer to the standards Document Summary page on the ASTM website.4Available from American Society for Nondestructive Testing (ASNT), P.O. Box 28518, 1711 Arlingate Ln., Columbus, OH 43228-0518.1This document is not an ASTM
14、standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Becauseit may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all
15、cases only the current versionof the standard as published by ASTM is to be considered the official document.*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.43.1.3 Grad
16、e (Table 1),43.1.4 Size (nominal size, or outside diameter and schedule number or average wall thickness),43.1.5 Lengths (specific or random), (Permissible Variations in Length Section of Specification A999/A999M),4.1.6End3.1.6 End finish (Ends Section of Specification A999/A999M),4.1.7Optional requ
17、irements (Section 93.1.7 Optional requirements (Section 8) (see Hydrostatic Test Requirements Section and the Permissible Variation in Weight forSeamless Pipe Section for weighing individual lengths, of Specification A999/A999M), (see 10.69.6, repairing by welding;14.313.3, die stamping),43.1.8 Test
18、 report required (Certification Section of Specification A999/A999M),43.1.9 Specification designation, and43.1.10 Special requirements or any supplementary requirements selected, or both.5.4. General Requirements54.1 Material furnished to this specification shall conform to the applicable requiremen
19、ts of the current edition of SpecificationA999/A999M unless otherwise provided herein.6.5. Materials and Manufacture6.1TABLE 1 Chemical RequirementsGradeUNSDesig-nationComposition,%ACarbon Man-ganese,maxPhos-phorus,maxSul-fur,maxSili-con,maxNickel Chromium Molyb-denumTita-niumColum-biumTan-talumNitr
20、o-genABOthersTP304 S30400 0.08 max 2.00 0.045 0.030 0.75 8.011.0 18.020.0 . . . . . .TP304 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 . . . . . . . . . . . . . . . . . .TP304N S30451 0.08 max 2.00 0.045 0.030 0.75 8.011
21、.0 18.020.0 . . . . 0.100.16 .TP304N S30451 0.08 2.00 0.045 0.030 0.75 8.011.0 18.020.0 . . . . 0.100.16 .TP304LN S30453 0.035 max 2.00 0.045 0.030 0.75 8.011.0 18.020.0 . . . . 0.100.16 .TP304LN S30453 0.035 2.00 0.045 0.030 0.75 8.011.0 18.020.0 . . . . 0.100.16 .TP316 S31600 0.08 max 2.00 0.045 0
22、.030 0.75 11.014.0 16.018.0 2.003.00 . . . . .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 . . . . . . . . . . . . . . .TP316N S31651 0.08 max 2.00 0.045 0.030 0.75 11.014.0 16.018.0 2.003.00 . . .
23、 0.100.16 .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 0.035 max 2.00 0.045 0.030 0.75 11.014.0 16.018.0 2.003.00 . . . 0.100.16 .TP316LN S31653 0.035 2.00 0.045 0.030 0.75 11.014.0 16.018.0 2.003.00 . . . 0.100.16 .TP321 S32100 0.08 max 2.00 0.
24、045 0.030 0.75 9.013.0 17.019.0 .B. . . .TP321 S32100 0.08 2.00 0.045 0.030 0.75 9.013.0 17.019.0 .C. . . .TP321H S32109 0.040.10 2.00 0.045 0.030 0.75 9.013.0 17.019.0 .C. . . .TP321H S32109 0.040.10 2.00 0.045 0.030 0.75 9.013.0 17.019.0 .D. . . .TP347 S34700 0.08 max 2.00 0.045 0.030 0.75 9.013.0
25、 17.019.0 . .D. . .TP347 S34700 0.08 2.00 0.045 0.030 0.75 9.013.0 17.019.0 . .E. . .TP347H S34709 0.040.10 2.00 0.045 0.030 0.75 9.013.0 17.019.0 . .E. . .TP347H S34709 0.040.10 2.00 0.045 0.030 0.75 9.013.0 17.019.0 . .F. . .TP347LN S34751 0.005-0.0202.00 0.045 0.030 1.00 9.013.0 17.0 19.0 . . 0.2
26、00.50G. 0.060.10 .TP348FS34800 0.08 max 2.00 0.045 0.030 0.75 9.013.0 17.019.0 . .D0.10 . Co 0.20 maxTP348HS34800 0.08 2.00 0.045 0.030 0.75 9.013.0 17.019.0 . .E0.10 . Co 0.20TP348H S34809 0.040.10 2.00 0.045 0.030 1.00 9.013.0 17.019.0E0.10TP348H S34809 0.040.10 2.00 0.045 0.030 1.00 9.013.0 17.01
27、9.0F0.1016-8-2H S16800 0.050.10 2.00 0.045 0.030 0.75 7.59.5 14.516.5 1.502.00 . . . . . . . . . . . . . . . S31725 0.030 max 2.00 0.045 0.030 0.75 13.517.5 18.020.0 4.05.0 . . . 0.20 max Cu 0.75 max. S31725 0.030 2.00 0.045 0.030 0.75 13.517.5 18.020.0 4.05.0 . . . 0.20 max Cu 0.75. S31726 0.030 ma
28、x 2.00 0.045 0.030 0.75 14.517.5 17.020.0 4.05.0 . . . 0.100.20 Cu 0.75 max. S31726 0.030 2.00 0.045 0.030 0.75 14.517.5 17.020.0 4.05.0 . . . 0.100.20 Cu 0.75. S34565 0.030 max 5.07.0 0.030 0.010 1.0 16.018.0 23.025.0 4.05.0 . . . 0.0400.060 Cb 0.10 max. S34565 0.030 5.07.0 0.030 0.010 1.0 16.018.0
29、 23.025.0 4.05.0 . . . 0.0400.060 Cb 0.10AThe method ofMaximum, unalyesis f otherwise indicatrogen sd. Whaere ell bipses (. . .) a mppear in this table, there is nof ag requirement be and analysis for twheelementh ne purchaser ad not be determainufactued or reported.BThe metithod of analysium cs for
30、 nitrogent shall be no a mat lessther of agreemen fivt betimwesen the ca purbonconthasentr and manoufact moure than 0.70%r.CThe titanium content shall be not less than fourive times the carbon content and not more than 0.70 %.DThe columb titanium content shall be not less than four ten times the car
31、bon content and not more than 1 0.170 %.EThe columbium content shall be not less than eigh ten times the carbon content and not more than 1.10 %.FThe columbium content shall be not less than eight times the carbon content and not more than 1.10 %.GThe columbium content shall not be less than 15 time
32、s the carbon content.HThis grade is intended for special purpose applications.A376/A376M 1225.1 ManufactureAt the manufacturers option, pipe may be either hot finished or cold finished, with a suitable finishingtreatment, where necessary.6.25.2 Heat Treatment:6.2.1All5.2.1 All pipe shall be furnishe
33、d in the heat-treated condition unless the order specifically states that no final heattreatment shall be applied. When the order is furnished without final heat treatment, each pipe shall be stenciled “HT-O.”6.2.2As5.2.2 As an alternate to final heat treatment in a continuous furnace or batch-type
34、furnace, immediately following hotforming while the temperature of the pipes is not less than the specified minimum solution treatment temperature, pipes may beindividually quenched in water or rapidly cooled by other means.6.2.35.2.3 Grades TP304, TP304N, TP304LN, TP316, TP316N, TP316LN, TP321, TP3
35、47, TP347LN, TP348, 16-8-2H,S 31725, and S 31726 Unless otherwise stated in the order, heat treatment shall consist of heating to a minimum temperatureof 1900 F 1040 C and quenching in water or rapidly cooling by other means.65.2.3.1 The purchaser may specify controlled structural or special service
36、 characteristics which shall be used as a guide for themost suitable heat treatment. If the final heat treatment is at a temperature under 1900 F 1040 C, each pipe shall be stenciledwith the final heat treatment temperature in degrees Fahrenheit or Celsius after the suffix “HT.”6.2.45.2.4 Grades TP3
37、04H, TP316H, TP321H, TP347H, TP348H, and 16-8-2HIf cold working is involved in processing, theminimum solution-treating temperature for Grades TP321H, TP347H, and TP348H shall be 2000 F 1100 C, for Grades TP304Hand TP316H, 1900 F 1040 C, and for Grade 16-8-2H, 1800 F 980 C. If the material is hot-ro
38、lled, the minimumsolution-treating temperatures for Grades TP321H, TP347H, and TP348H shall be 1925 F 1050 C, for Grades TP304H andTP316H, 1900 F 1040 C, and for Grade 16-8-2H, 1800 F 980 C.6.2.55.2.5 Grade S34565Heat treatment shall consist of heating to a temperature in the range of 2050 F 1120 C
39、minimum and2140 F 1170 C maximum, and quenching in water or rapidly cooling by other means.6.3A5.3 A solution annealing temperature above 1950 F 1065 C may impair the resistance to intergranular corrosion aftersubsequent exposure to sensitizing conditions in TP321, TP321H, TP347, TP347H, TP348, and
40、TP348H. When specified by thepurchaser, a lower temperature stabilization or re-solution anneal shall be used subsequent to the initial high temperature solutionanneal (see Supplementary Requirement S9).6.45.4 The grain size of grades 304H, 316H, 321H, 347H, and 348H as determined in accordance with
41、 Test Methods E112, shallbe No. 7 or coarser.7.6. Chemical Composition7.1The6.1 The steel shall conform to the requirements as to chemical composition prescribed in Table 1.8.7. Product Analysis8.1At the request of the purchaser, an analysis of one billet from each heat or two pipes from each lot (N
42、ote 2) shall be madeby the manufacturer. A lot of pipe shall consist of the following:7.1 At the request of the purchaser, an analysis of one billet from each heat or two pipes from each lot shall be made by themanufacturer. A lot of pipe shall consist of the number of lengths as a function of size,
43、 as shown below, of the same size and wallthickness from any one heat of steel:NPS Designator Lengths of Pipe in LotNPS DN Designator Lengths of Pipe in LotUnder NPS 2 400 or fraction thereofUnder NPS 2 DN 50 400 or fraction thereofNPS 2 to NPS 5, incl 200 or fraction thereofNPS 2 DN 50 to NPS 5DN 1
44、25, incl200 or fraction thereofOver NPS 5 100 or fraction thereofOver NPS 5 DN 125 100 or fraction thereofNote2A lot shall consist of the number of lengths specified in 8.1 of the same size and wall thickness from any one heat of steel.8.2The results of these analyses shall be reported to the purcha
45、ser or the purchasers representative, and shall conform to therequirements specified in7.2 The results of these analyses shall be reported to the purchaser or the purchasers representative, and shall conform to therequirements specified in Table 1.8.3If7.3 If the analysis of one of the tests specifi
46、ed in Section 98 does not conform to the requirements specified in Section 76,an analysis of each billet or pipe from the same heat or lot may be made, and all billets or pipe conforming to the requirementsshall be accepted.A376/A376M 1239.8. Tensile Requirements9.1The8.1 The material shall conform
47、to the requirements as to tensile properties prescribed in Table 2.10.9. Workmanship, Finish, and Appearance10.19.1 The pipe manufacturer shall explore a sufficient number of visual surface imperfections to provide reasonable assurance thatthey have been properly evaluated with respect to depth. Exp
48、loration of all surface imperfections is not required but may benecessary to assure compliance with 10.29.2.10.29.2 Surface imperfections that penetrate more than 1212 % of the nominal wall thickness or encroach on the minimum wallthickness shall be considered defects. Pipe with such defects shall b
49、e given one of the following dispositions:10.2.1The9.2.1 The defect may be removed by grinding provided that the remaining wall thickness is within specified limits.10.2.2Repaired9.2.2 Repaired in accordance with the repair welding provisions of 10.69.6.10.2.3The9.2.3 The section of pipe containing the defect may be cut off within the limits of requirements on length.10.2.4Rejected.9.2.4 Rejected.10.3To9.3 T
