ASTM A803 A803M-2016 Standard Specification for Seamless and Welded Ferritic Stainless Steel Feedwater Heater Tubes《无缝和焊接铁素体不锈钢给水加热器管件的标准规格》.pdf

《ASTM A803 A803M-2016 Standard Specification for Seamless and Welded Ferritic Stainless Steel Feedwater Heater Tubes《无缝和焊接铁素体不锈钢给水加热器管件的标准规格》.pdf》由会员分享，可在线阅读，更多相关《ASTM A803 A803M-2016 Standard Specification for Seamless and Welded Ferritic Stainless Steel Feedwater Heater Tubes《无缝和焊接铁素体不锈钢给水加热器管件的标准规格》.pdf（10页珍藏版）》请在麦多课文档分享上搜索。

1、Designation: A803/A803M 12A803/A803M 16Standard Specification forSeamless and Welded Ferritic Stainless Steel FeedwaterHeater Tubes1This standard is issued under the fixed designation A803/A803M; the number immediately following the designation indicates the yearof original adoption or, in the case

2、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 specification covers seamless and welded ferritic stainless steel feedwater heater tube

3、s including those bent, ifspecified, into the form of U-tubes for application in tubular feedwater heaters.1.2 The tubing sizes covered shall be 58 to 1 in. 15.9 to 25.4 mm inclusive outside diameter, and average or minimum wallthicknesses of 0.028 in. 0.7 mm and heavier.1.3 The values stated in eit

4、her SI units or inch-pound 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 res

5、ult in non-conformance with the standard.2. Referenced Documents2.1 ASTM Standards:2A480/A480M Specification for General Requirements for Flat-Rolled Stainless and Heat-Resisting Steel Plate, Sheet, and StripA763 Practices for Detecting Susceptibility to Intergranular Attack in Ferritic Stainless St

6、eelsA941 Terminology Relating to Steel, Stainless Steel, Related Alloys, and FerroalloysA1016/A1016M Specification for General Requirements for Ferritic Alloy Steel, Austenitic Alloy Steel, and Stainless SteelTubes3. Terminology3.1 DefinitionsFor definitions of terms used in this specification, refe

7、r to Terminology A941.4. Ordering Information4.1 It is the responsibility of the purchaser to specify all requirements that are necessary for material under this specification.Such requirements may include, but are not limited to, the following:4.1.1 Quantity (length or number of pieces),4.1.2 Mater

8、ial description (seamless or welded),4.1.3 Dimensions (outside diameter, wall thickness (minimum or average wall), and length),4.1.4 Grade (chemical composition) (Table 1), and4.1.5 U-bend requirements, if order specifies bending, U-bend schedules or drawings shall accompany the order.4.2 Optional R

9、equirementsPurchaser shall specify whether annealing of the U-bends is required or whether tubes are to behydrotested or air-tested (see 10.6).4.3 Supplementary RequirementsPurchaser shall specify on this purchase order if material is to be eddy-current tested inaccordance with Supplementary Require

10、ment S1 or S2, and if special test reports are required, under Supplementary RequirementS3, and,4.4 Any additional special requirements.1 This specification is under the jurisdiction ofASTM Committee A01 on Steel, Stainless Steel and RelatedAlloys and is the direct responsibility of Subcommittee A01

11、.10on Stainless and Alloy Steel Tubular Products.Current edition approved March 1, 2012March 1, 2016. Published April 2012March 2016. Originally approved in 1982. Last previous edition approved in 20112012 asA803/A803M11.12. DOI: 10.1520/A0803_A0803M-12.10.1520/A0803_A0803M-16.2 For referencedASTM s

12、tandards, visit theASTM website, www.astm.org, or contactASTM Customer Service at serviceastm.org. For Annual Book of ASTM Standardsvolume information, refer to the standards Document Summary page on the ASTM website.This document is not an ASTM standard and is intended only to provide the user of a

13、n 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 cases only the current versionof the standard as publi

14、shed by ASTM is to be considered the official document.*A Summary of Changes section appears at the end of this standardCopyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States15. General Requirements5.1 Material furnished to this specificatio

15、n shall conform to the applicable requirements of the latest published edition ofSpecification A1016/A1016M unless otherwise provided herein.6. Materials and Manufacture6.1 The tubing shall be manufactured by either the seamless or welded process.6.2 Seamless Tubing:6.2.1 Seamless tubing shall be su

16、pplied from a cold finish process. Hot finishing as the final sizing process is not allowed.6.3 Welded Tubing:6.3.1 The tube shall be made from flat-rolled steel by an automatic welding process with no addition of filler metal.TABLE 1 Chemical RequirementsGrade UNSS 40900TP409UNS S 43035TP439UNSS 44

17、627TP XM-27UNS S 44626TP XM-33UNS S 4463525-4-4UNS S 4466026-3-3UNSS 4470029-4UNSS 4480029-4-2UNS S 4440018-2UNS S 4473529-4CElement Composition, %C, max 0.08 0.07 0.01A 0.06 0.025 0.030 0.010 0.010 0.025 0.030Mn, max 1.00 1.00 0.40 0.75 1.00 1.00 0.30 0.30 1.00 1.00P, max 0.045 0.040 0.02 0.040 0.0

18、40 0.040 0.025 0.025 0.040 0.040S, max 0.030 0.030 0.02 0.020 0.030 0.030 0.020 0.020 0.030 0.030Si, max 1.00 1.00 0.40 0.75 0.75 1.00 0.20 0.20 1.00 1.00Ni 0.50 max 0.50 max 0.5B max 0.50 max 3.54.5 1.03.5 0.15 max 2.02.5 1.00 max 1.00 maxCr 10.5 17.019.0 25.027.5 25.027.0 24.526.0 25.028.0 28.030.

19、0 28.030.0 17.519.5 28.030.011.7Mo . . . . . . 0.751.50 0.751.50 3.54.5 3.04.0 3.54.2 3.54.2 1.752.50 3.64.2Al . . . 0.15 max . . . . . . . . . . . . . . . . . . . . . . . .Cu . . . . . . 0.20 max 0.20 max . . . . . . 0.15 max 0.15 max . . . . . .N . . . 0.04 max 0.015max0.040 max 0.035 0.040 max 0.

20、020 0.020 0.035 max 0.045 maxmaxC maxCTi 6 Cmin; 0.75max0.20 + 4 (C +N) min; 1.10max. . . 7 (C + N) butno less than0.20 min;(Ti + Cb) = 0.2+ 4 (C + N)min; 0.80Ti + Cb = 6 (C + N) but noless than 0.20min;(Ti + Cb) =0.20 + 4 (C +N) min; 0.80Ti + Cb = 6 (C + N) but noless than 0.20min; 1.00 max1.00 max

21、 max 1.00 max maxCb . . . . . . 0.050.20 . . . . . . . . . . . . . . . . . . . . .TABLE 1 Chemical RequirementsGrade UNSS 40900TP409UNS S 43035TP439UNSS 44627TP XM-27UNS S 44626TP XM-33UNS S 4463525-4-4UNS S 4466026-3-3UNSS 4470029-4UNSS 4480029-4-2UNS S 4440018-2UNS S 4473529-4CElement Composition,

22、 %C, max 0.08 0.07 0.01A 0.06 0.025 0.030 0.010 0.010 0.025 0.030Mn, max 1.00 1.00 0.40 0.75 1.00 1.00 0.30 0.30 1.00 1.00P, max 0.045 0.040 0.02 0.040 0.040 0.040 0.025 0.025 0.040 0.040S, max 0.030 0.030 0.02 0.020 0.030 0.030 0.020 0.020 0.030 0.030Si, max 1.00 1.00 0.40 0.75 0.75 1.00 0.20 0.20

23、1.00 1.00Ni 0.50 max 0.50 max 0.5B max 0.50 max 3.54.5 1.03.5 0.15 max 2.02.5 1.00 max 1.00 maxCr 10.5 17.019.0 25.027.5 25.027.0 24.526.0 25.028.0 28.030.0 28.030.0 17.519.5 28.030.011.7Mo . . . . . . 0.751.50 0.751.50 3.54.5 3.04.0 3.54.2 3.54.2 1.752.50 3.64.2Al . . . 0.15 max . . . . . . . . . .

24、 . . . . . . . . . . . . . .Cu . . . . . . 0.20 max 0.20 max . . . . . . 0.15 max 0.15 max . . . . . .N . . . 0.04 max 0.015max0.040 max 0.035 0.040 max 0.020 0.020 0.035 max 0.045 maxmaxC maxCTi 6 Cmin; 0.75max0.20 + 4 (C +N) min; 1.10max. . . 7 (C + N) butno less than0.20 min;(Ti + NbD ) =0.2 + 4

25、(C + N)min; 0.80Ti + NbD = 6 (C + N) but noless than 0.20min;(Ti + NbD ) =0.20 + 4 (C +N) min; 0.80Ti + NbD = 6 (C + N) but noless than 0.20min; 1.00 max1.00 max max 1.00 max maxNbD . . . . . . 0.050.20 . . . . . . . . . . . . . . . . . . . . .A For small diameter or thin walls, or both, tubing, whe

26、re many drawing passes are required, a carbon maximum of 0.015 % is necessary. Small outside diameter tubesare defined as those less than 0.500 in. 12.7 mm in outside diameter and light wall tubes as those less than 0.049 in. 1.2 mm in average wall thickness (0.040 in. 1mm in minimum wall thickness)

27、.B Nickel + copper.C Carbon + nitrogen = 0.025 max.DThe term Niobium (Nb) and Columbium (Cb) are alternate names for the same element.A803/A803M 1626.4 Surface contaminants may have detrimental effects on high temperature properties or corrosion resistance of tubing.Contamination by copper, lead, me

28、rcury, zinc, chlorides, or sulfur may be detrimental to stainless steels. The manufacturer shallemploy techniques which minimize surface contamination by these elements.7. Cleaning Before Annealing7.1 All lubricants or coatings used in the manufacture of straight-length tube or in the bending shall

29、be removed from allsurfaces prior to any annealing treatments. U-bends on which a lubricant had been applied to the inside surface during bendingshall have the cleanness of their inside surface confirmed by blowing close-fitting acetone-soaked felt plugs through 10 % of thetubes of each bend radius.

30、 Dry, oil-free air or inert gas shall be used to blow the plugs through the tubes. If the plugs blown throughany tube show more than a light gray discoloration, all tubes that have had a lubricant applied to the inside surface during bendingshall be recleaned. After recleaning 10 % of the tubes of e

31、ach bend radius whose inside surface had been subjected to bending,lubricants shall be retested.8. Heat Treatment8.1 All finished straight tubing or straight tubing ready for U-bending shall be furnished in the solution-annealed condition. Theannealing procedure shall consist of heating the material

32、 to a temperature of 1200F 650C or higher and cooling (as appropriatefor the grade) to meet the requirements of this specification.8.2 If heat treatment of U-bends is specified, it shall satisfy the annealing procedure described in 8.1 and shall be done asfollows:8.2.1 The heat treatment shall be ap

33、plied to the U-bend area plus approximately 6 in. 150 mm of each leg beyond the tangentpoint of the U-bend.8.2.2 If the heat treatment specified in 8.2 is accomplished by resistance-heating methods wherein electrodes are clamped to thetubes, the clamped areas shall be visually examined for arc burns

34、. Burn indications shall be cause for rejection unless they can beremoved by local polishing without encroaching upon minimum wall thickness.8.2.3 Temperature control shall be accomplished through the use of optical or emission pyrometers, or both. No temperature-indicating crayons, lacquers, or pel

35、lets shall be used.8.2.4 The inside of the tube shall be purged with a protective or an inert gas atmosphere during heating and cooling to below700F 370C to prevent scaling of the inside surface. The atmosphere should be noncarburizing.9. Chemical Composition9.1 Product Analysis:9.1.1 The steel shal

36、l conform to the chemical composition in Table 1.9.1.2 When specified on the purchase order, a product analysis shall be supplied from one tube or coil of steel per heat. Theproduct analysis tolerance of Specification A480/A480M shall apply.9.1.3 If the original test for product analysis fails, rete

37、sts of two additional lengths of flat-rolled stock or tubes shall be made.Both retests, for the elements in question, shall meet the requirements of this specification; otherwise all remaining material in theheat or lot shall be rejected or, at the option of the producer, each length of flat-rolled

38、stock or tube may be individually tested foracceptance. Lengths of flat-rolled stock or tubes that do not meet the requirements of this specification shall be rejected.10. Mechanical Requirements10.1 Tensile Properties:10.1.1 The material shall conform to the tensile properties shown in Table 2.10.1

39、.2 One tension test shall be made on a specimen for lots of not more than 50 tubes.Tension tests shall be made on specimensfrom two tubes for lots of more than 50 tubes.10.1.3 Table 3 gives the computed minimum elongation values for each 132 in. 0.8 mm decrease in wall thickness.10.2 Hardness:10.2.1

40、 The tubes shall have a hardness number not to exceed those prescribed in Table 4. This hardness requirement is not toapply to the bend area of U-bend tubes which are not heat treated after bending.10.2.2 Brinell or Rockwell hardness tests shall be made on specimens from two tubes from each lot.10.3

41、 Reverse Flattening Test (for Welded Product) Product)One reverse flattening test shall be made on a specimen fromeach 1500 ft 460 m of finished tubing.10.4 Flange Test (for Welded Product)Flange tests shall be made on specimens from each end of one finished tube, not theone used for the flattening

42、test, from each lot.10.5 Flaring Test (for Seamless Tubes)One test shall be made on specimens from one end of one tube from each lot of finishedtubes. The minimum expansion of the inside diameter shall be 10 %.10.6 Pressure TestEach straight tube, or each U-tube after completion of the bending and p

43、ost-bending heat treatment, shallbe pressure-tested in accordance with one of the following paragraphs as specified by the purchaser:A803/A803M 16310.6.1 Hydrostatic TestEach tube shall be given an internal hydrostatic test in accordance with Specification A1016/A1016M.10.6.2 Pneumatic TestEach tube

44、 shall be examined by a pneumatic test (either air underwater or pneumatic leak test) inaccordance with Specification A1016/A1016M.10.7 Lot Definitions:10.7.1 For flange and flaring test requirements, the term “lot” applies to 125 tube groupings, prior to cutting to length, of thesame nominal size a

45、nd wall thickness, produced from the same heat of steel and annealed in a continuous furnace.10.7.2 For tension and hardness requirements, the term “lot” applies to all tubes, prior to cutting to length, of the same nominaldiameter and wall thickness, produced from the same heat of steel and anneale

46、d in a continuous furnace at the same temperature,time at temperature, and furnace speed.11. Corrosion Resisting Properties11.1 One full section sample 1 in. 25 mm long from the center of a sample tube of the smallest radius bend that is heat treatedshall be tested in the heat treated condition in a

47、ccordance with the appropriate practice in Practices A763 for the specified grade,or as agreed upon for TP409.TABLE 2 Tensile RequirementsCOLSPEC/colnum=“1“Grade Tensile Strength, min, ksiMPa Yield Strength,min, ksi MPaElongationAin 2 in.or 50 mm,min, %TP 409 55 380 30 205 20TP 439 60 415 30 205 20T

48、P XM-27 65 450 40 275 20TP XM-33 68 470 45 310 2025-4-4 90 620 75 515 2026-3-3 85 585 65 450 2029-4 80 550 60 415 2029-4-2 80 550 60 415 2018-2 60 415 35 240 2029-4C 75 515 60 415 18A For longitudinal strip tests, a deduction of 0.90 % for 29-4C and 1 % for all othergrades shall be made from the bas

49、ic minimum elongation for each 132 in. 0.8 mmdecrease in wall thickness below 516 in. 8 mm. Table 3 gives the computedminimum values.TABLE 3 Minimum Elongation ValuesACOLSPEC/colnum=“1“Wall ThicknessB Elongation in 2 in. or 50 mm, min, %in. mm 29-4C All Other516 (0.312) 8 18 20932 (0.281) 7.2 17 1914 (0.250) 6.4 16 18732 (0.219) 5.6 15 17316 (0.188) 4.8 14 16532 (0.156) 4 13 1518 (0.125) 3.2 13 14332 (0.094) 2.4 12 13116 (0.062)