1、Designation: B423 11Standard Specification forNickel-Iron-Chromium-Molybdenum-Copper Alloy(UNS N08825, N08221, and N06845) Seamless Pipe andTube1This standard is issued under the fixed designation B423; the number immediately following the designation indicates the year oforiginal adoption or, in th
2、e case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.1. Scope*1.1 This specification2covers nickel-iron-chromium-molybdenum-copper alloys (UNS N08825,
3、N08221, andN06845)3in the form of cold-worked and hot-finished seam-less pipe and tube intended for general corrosive service. Thegeneral requirements for pipe and tube are covered in Speci-fication B829.1.2 The values stated in inch-pound units are to be regardedas standard. The values given in par
4、entheses are mathematicalconversions to SI units that are provided for information onlyand are not considered standard.1.3 The following precautionary caveat pertains only to thetest methods portion, Section 9, of this specification: Thisstandard does not purport to address all of the safety concern
5、s,if any, associated with its use. It is the responsibility of the userof this standard to become familiar with all hazards includingthose identified in the appropriate Material Safety Data Sheet(MSDS) for this product/material as provided by the manufac-turer, to establish appropriate safety and he
6、alth practices, anddetermine the applicability of regulatory limitations prior touse.2. Referenced Documents2.1 ASTM Standards:4B829 Specification for General Requirements for Nickeland Nickel Alloys Seamless Pipe and Tube3. General Requirement3.1 Material furnished under this specification shall co
7、n-form to the applicable requirements of Specification B829unless otherwise provided herein.4. Ordering Information4.1 It is the responsibility of the purchaser to specify allrequirements that are necessary for the safe and satisfactoryperformance of material ordered under this specification.Example
8、s of such requirements include, but are not limited to,the following:4.1.1 Alloy name or UNS number,4.1.2 ASTM designation,4.1.3 Condition (see Appendix X2),4.1.4 Finish (see Appendix X2),4.1.5 Dimensions:4.1.5.1 TubeSpecify outside diameter and nominal orminimum wall,4.1.5.2 PipeSpecify standard pi
9、pe size and schedule,4.1.5.3 LengthCut to length or random,4.1.6 QuantityFeet (or metres) or number of pieces,4.1.7 Hydrostatic Test or Nondestructive Electric TestSpecify type of test (see 6.2).4.1.8 Hydrostatic Pressure RequirementsSpecify testpressure if other than required by 9.1.1,4.1.9 Certifi
10、cationState if certification is required,4.1.10 Samples for Product (Check) AnalysisStatewhether samples for product (check) analysis should be fur-nished (see 5.2),4.1.11 Purchaser InspectionIf purchaser wishes to wit-ness tests or inspection of material at place of manufacture, thepurchase order m
11、ust so state indicating which tests or inspec-tions are to be witnessed, and4.1.12 Small-Diameter and Light-Wall Tube (ConverterSizes)See Appendix X1.1This specification is under the jurisdiction of ASTM Committee B02 onNonferrous Metals and Alloys and is the direct responsibility of SubcommitteeB02
12、.07 on Refined Nickel and Cobalt and Their Alloys.Current edition approved Oct. 1, 2011. Published November 2011. Originallyapproved in 1964. Last previous edition approved in 2009 as B423 - 05 (2009).DOI: 10.1520/B0423-11.2For ASME Boiler and Pressure Vessel Code applications see related specifica-
13、tion SB-423 in Section II of that code.3New designation established in accordance with Practice E527 and SAEJ 1086, Practice for Numbering Metals and Alloys (UNS).4For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book
14、 of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.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.5. Chemical Compo
15、sition5.1 The material shall conform to the composition limitsspecified in Table 1. One test is required for each lot as definedin Specification B829.5.2 If a product (check) analysis is performed by thepurchaser, the material shall conform to the product (check)analysis variations of Specification
16、B829.6. Mechanical Properties and Other Requirements6.1 Tension TestThe material shall conform to the tensileproperties specified in Table 2. The sampling and specimenpreparation are as covered in Specification B829.6.1.1 Tensile properties for material specified as small-diameter and light-wall tub
17、e (converter sizes) shall be asprescribed in Table X1.1.6.2 Hydrostatic or Nondestructive Electric TestEach pipeor tube shall be subjected to either the hydrostatic test or thenondestructive electric test. The type of test to be used shall beat the option of the manufacturer, unless otherwise specif
18、ied inthe purchase order.7. Dimensions and Permissible Variations7.1 Diameter and Wall ThicknessThe permissible varia-tions in the outside diameter and wall thickness shall conformto the permissible variations prescribed in Tables 3, 4, and 5 ofSpecification B829.7.2 Permissible variations for mater
19、ial specified as small-diameter and light-wall tube (converter size) shall conform tothe permissible variations prescribed in Table X1.2.8. Number of Tests8.1 Chemical AnalysisOne test per lot.8.2 TensionOne test per lot.8.3 Hydrostatic or Nondestructive Electric TestEachpiece in each lot.9. Test Me
20、thods9.1 Hydrostatic TestEach pipe or tube with an outsidediameter18 in. (3 mm) and larger and with wall thickness of0.015 in. (0.38 mm) and over shall be tested in accordance withSpecification B829. The allowable fiber stress, for material inthe condition furnished, is as follows:UNS N08825 hot fin
21、ished, annealed: 16 600 psi (114 MPa)UNS N08825 cold-worked, annealed: 21 200 psi (146 MPa)UNS N08221 cold finished, annealed: 19 700 psi (138 MPa)9.1.1 When so agreed upon between the manufacturer andpurchaser, pipe or tube may be tested to 112 times theallowable fiber stress given in 9.1.9.1.2 If
22、any pipe or tube shows leaks during hydrostatictesting, it shall be rejected.9.2 Nondestructive Electric TestEach pipe or tube shall beexamined with a nondestructive electric test in accordance withSpecification B829.10. Keywords10.1 N08221; N08825; N06845; seamless pipe; seamlesstubeTABLE 1 Chemica
23、l RequirementsAElement UNS N08825 UNS N08221 UNS N06845Nickel 38.046.0 39.046.0 44.050.0Chromium 19.523.5 20.022.0 20.025.0Iron 22.0 minB22.0 minBremainderBManganese 1.0 1.0 0.5Carbon 0.05 0.025 0.05Copper 1.53.0 1.53.0 2.04.0Silicon 0.5 0.5 0.5Sulfur 0.03 0.03 0.010Aluminum 0.2 0.2 .Titanium 0.61.2
24、 0.61.0 .Molybdenum 2.53.5 5.06.5 5.07.0Tungsten . . 2.05.0AMaximum unless range or minimum is given. Where ellipses (.) appear in this table, there is no requirement and analysis for the element need not be determinedor reported.BElement shall be determined arithmetically by difference.TABLE 2 Mech
25、anical Properties of Pipe and TubeAlloy Condition and SizeTensile Strength,min, ksi (MPa)Yield Strength0.2 % Offset, min,ksi (MPa)Elongation in2 in. or 50mm (4D),min,%UNS N08825 hot-finished annealed 75 (517) 25 (172) 30UNS N08825 cold-worked annealed 85 (586) 35 (241) 30UNS N08825 hot-forming quali
26、ty (hot-finished or cold-drawnannealed)AAAUNS N08221 cold-finished, annealed 79 (545) 34 (234) 30UNS N06845 cold-finished, annealed 100 (690) 40 (276) 30AHot-forming quality is furnished to chemical requirements and surface inspection only. No mechanical properties are required.B423 112APPENDIXES(No
27、nmandatory Information)X1. CONVERTER SIZESX1.1 Small-diameter and light-wall tube in outside diam-eters 114 in. (31.8 mm) and under may be furnished in theconditions listed in Table X1.1 when so specified. The materialis furnished in a limited range of sizes and the manufacturershould be consulted a
28、s to the various outside diameters andwall thicknesses that may be furnished. Material will have aright finish. Such material shall conform to the applicablerequirements in Table X1.1 and Table X1.2.TABLE X1.1 Mechanical PropertiesAof Small-Diameter and Light-Wall Tubing (Converter Sizes)Condition T
29、ensile Strength, ksi (MPa)Yield Strength (0.2 % offset) min,ksi (MPa)Elongation in 2 in. or 50 mm,min, %AnnealedBC85115 (586793) 35 (241) 30Half-hardD105 (724) min 75 (517) 15Full-hardE125 (862) min 100 (689) 5ANot applicable to outside diameters under18 in. (3.2 mm) and wall thickness under 0.015 i
30、n. (0.381 mm).BThis condition is sometimes designated as “No. 1 Temper.”CThe minimum tensile strength value applies only to tubing in straight lengths.DThis condition is sometimes designated as “No. 2 Temper.”EThis condition is sometimes designated as “No. 3 Temper.”TABLE X1.2 Permissible Variations
31、 for Small-Diameter and Light-Wall Tube (Converter Sizes)ABCDEFGSpecified Outside Diameter, in.(mm)Outside Diameter, in. (mm) Inside Diameter, in. (mm) Wall Thickness, %+ +Under332 (2.4) 0.002 (0.05) 0 0 0.002 (0.05) 10 10332 to316 (2.4 to 4.8), excl 0.003 (0.08) 0 0 0.003 (0.08) 10 10316 to12 (4.8
32、to 12.7), excl 0.004 (0.10) 0 0 0.004 (0.10) 10 1012 to 114 (12.7 to 31.8), incl 0.005 (0.13) 0 0 0.005 (0.13) 10 10AOvality, Normal Wall TubeAs-Drawn (No. 2 and 3) TempersOvality will be held within the outside diameter tolerances shown in the table.Annealed (No. 1) TemperOvality will be held withi
33、n 2 % of the theoretical average outside diameter.BOvality, Light Wall TubeAs-Drawn (No. 2 and 3) TempersUp to but not including 114 in. (31.8 mm) in outside diameter, ovality will be held within 2 % of thetheoretical average outside diameter.Annealed (No. 1) TemperOvality will be held within 3 % of
34、 the theoretical average outside diameter.CWall Tolerances, Light Wall TubeThe plus and minus wall tolerance shown in the table shall apply down to and including 0.005 in. (0.13 mm) in wall thickness. Forwall thicknesses less than 0.005 in. (0.13 mm), the tolerance shall be 60.0005 in. (0.013 mm).DR
35、andom Lengths:Where nominal random lengths on tubing18 in. (3.2 mm) and larger in outside diameter are specified, a length tolerance of 6312 ft (1.06 m) applies to the nominal length.This is a total spread of 7 ft (2.10 m).Random lengths in sizes18 in. (3.2 mm) and larger in outside diameter shall b
36、e subject to a length range of 5 to 24 ft (1.50 to 7.30 m). Long random lengths are subjectto a range of 15 to 22 ft (4.57 to 6.70 m).Random lengths in sizes up to, but not including,18 in. (3.2 mm) in outside diameter and fragile light-wall tubes over this outside diameter are subject to the length
37、 rangeof 1 to 15 ft (0.30 to 4.57 m).ECut LengthsTolerances on cut lengths shall be in accordance with Table X1.3.FStraightnessRound tubing is subject to a straightness tolerance of one part in 600 equivalent to a depth of arc of 0.030 in. (0.76 mm) in any 3 ft (0.91 m) on length.GWhen specified, th
38、e tolerance spreads of this table may be applied as desired. However, when not specified, the tolerances in this table will apply. It should be notedthat inside diameter tolerances are based upon the outside diameter range.TABLE X1.3 Tolerances on Cut Lengths of Light-Wall TubeLength, ft (m) Tube Si
39、ze, in. (mm)Permissible Variations, in. (mm)Over UnderUnder 1 (0.30) up to 1.250 (31.8), incl132 (0.8) 0 (0)1 to 4 (0.30 to 1.22), incl up to 1.250 (31.8), incl116 (1.6) 0 (0)Over 4 to 10 (1.22 to 3.0), incl up to 1.250 (31.8), incl332 (2.4) 0 (0)Over 10 (3.0) up to 1.250 (31.8), incl316 (4.8) 0 (0)
40、B423 113X2. CONDITIONS AND FINISHES NORMALLY SUPPLIEDX2.1 ScopeX2.1.1 This appendix lists the conditions and finishes inwhich pipe and tube (other than converter sizes) are normallysupplied. These are subject to change, and the manufacturershould be consulted for the latest information available.X2.
41、2 Cold-Worked Tube and PipeX2.2.1 Cold-Worked, Annealed, with Ground OutsideDiameterThe inside diameter may have a bright finish whenmaterial is annealed in a protective atmosphere; otherwise, theinside diameter is supplied descaled as necessary. It is availablein sizes12 to 4 in. (12.7 to 102 mm),
42、inclusive, in outsidediameter in both normal and heavy-wall tube, and pipe sizes,all schedules, of corresponding outside-diameter dimensions.X2.2.2 Cold-Worked, Annealed, and Pickled (NotGround)Outside and inside diameter will have dull, matte(pickled) surfaces. It is available in sizes12 to 658 in.
43、 (12.7 to168 mm), inclusive, in outside diameter in both normal andheavy-wall tube, and pipe sizes, all schedules, of correspond-ing outside-diameter dimensions.X2.3 Hot-Worked TubeX2.3.1 Hot-Worked-Annealed (Not Pickled) TubeHas anoxide surface resulting from the hot-working operation. In-tended ge
44、nerally for machined parts where the oxide surfacewill be removed.X2.3.2 Hot-Worked-Annealed (Pickled) TubeHas the ox-ide surface removed on both outside and inside diameters bypickling. Surface may be spot ground for removal of minorsurface imperfections at the manufacturers option.X2.3.3 Hot-Worke
45、d-Annealed (Machined Outside and In-side Diameters) TubesThe outside and inside diametersurfaces are machined to specified dimensions. Minor surfaceimperfections may be spot ground for removal, at the manu-facturers option.SUMMARY OF CHANGESCommittee B02 has identified the location of selected chang
46、es to this standard since the last issue(B423 - 05 (2009) that may impact the use of this standard. (Approved October 1, 2011.)(1) Revised Title, subsection 1.1, Section 10, Table 1, andTable 2 to add UNS N06845.(2) Revised Table 1 to add footnotes A and B, and to addfootnote B to the iron contents
47、of N08825 and N08221.ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentionedin this standard. Users of this standard are expressly advised that determination of the validity of any such patent rights, and the riskof infringemen
48、t of such rights, are entirely their own responsibility.This standard is subject to revision at any time by the responsible technical committee and must be reviewed every five years andif not revised, either reapproved or withdrawn. Your comments are invited either for revision of this standard or f
49、or additional standardsand should be addressed to ASTM International Headquarters. Your comments will receive careful consideration at a meeting of theresponsible technical committee, which you may attend. If you feel that your comments have not received a fair hearing you shouldmake your views known to the ASTM Committee on Standards, at the address shown below.This standard is copyrighted by ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959,United States. Individ
