1、Designation: B444 161Standard Specification forNickel-Chromium-Molybdenum-Columbium Alloys(UNS N06625 and UNS N06852) and Nickel-Chromium-Molybdenum-Silicon Alloy (UNS N06219) Pipe and Tube1This standard is issued under the fixed designation B444; the number immediately following the designation ind
2、icates the year oforiginal adoption or, in the 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.This standard has been approved for use by agencies o
3、f the U.S. Department of Defense.1NOTETable 2 was editorially corrected in August 2016.1. Scope*1.1 This specification2covers nickel-chromium-molybdenum-columbium alloys (UNS N06625 and UNSN06852) and nickel-chromium-molybdenum-silicon alloy(UNS N06219)3in the form of cold-worked seamless pipe andtu
4、be. The general requirements for pipe and tube are coveredby Specification B829.1.1.1 UNS N06625 products are furnished in two grades ofdifferent heat-treated conditions:1.1.1.1 Grade 1 (annealed)Material is normally employedin service temperatures up to 1100F (593C).1.1.1.2 Grade 2 (solution anneal
5、ed)Material is normallyemployed in service temperatures above 1100F (593C) whenresistance to creep and rupture is required.NOTE 1Hot-working or reannealing may change propertiessignificantly, depending on working history and temperatures.1.1.2 Alloys UNS N06219 and UNS N06852 are supplied inthe solu
6、tion annealed condition only.1.2 The values stated in inch-pound units are to be regardedas standard. The values given in parentheses are mathematicalconversions to SI units that are provided for information onlyand are not considered standard.1.3 The following precautionary caveat pertains only to
7、thetest methods portion, Section 9, of this specification: Thisstandard does not purport to address all of the safety concerns,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 Safety
8、 Data Sheet (SDS) forthis product/material as provided by the manufacturer, toestablish appropriate safety and health practices, and deter-mine the applicability of regulatory limitations prior to use.2. Referenced Documents2.1 ASTM Standards:4B829 Specification for General Requirements for Nickel a
9、ndNickel Alloys Seamless Pipe and TubeE112 Test Methods for Determining Average Grain SizeG28 Test Methods for Detecting Susceptibility to Inter-granular Corrosion in Wrought, Nickel-Rich, Chromium-Bearing AlloysG48 Test Methods for Pitting and Crevice Corrosion Resis-tance of Stainless Steels and R
10、elated Alloys by Use ofFerric Chloride Solution3. General Requirement3.1 Material furnished under this specification shall con-form to the applicable requirements of Specification B829unless otherwise provided herein.4. Ordering Information4.1 Orders for material to this specification shall includei
11、nformation with respect to the following:4.1.1 Alloy name or UNS number,4.1.2 ASTM designation,4.1.3 Condition (temper) (see 1.1.1, 1.1.2, Section 6, andAppendix X1 and Appendix X2),4.1.3.1 If neither grade of N06625 is specified, Grade 1 willbe supplied.4.1.4 Finish (See Appendix X2),4.1.5 Dimensio
12、ns:1This specification is under the jurisdiction of ASTM Committee B02 onNonferrous Metals and Alloys and is the direct responsibility of SubcommitteeB02.07 on Refined Nickel and Cobalt and Their Alloys.Current edition approved June 1, 2016. Published June 2016. Originallyapproved in 1966. Last prev
13、ious edition approved in 2011 as B444 06 (2011).DOI: 10.1520/B0444-16E01.2For ASME Boiler and Pressure Vessel Code applications see related Specifi-cation SB-444 in Section II of that Code.3New designation established in accordance with Practice E527 and SAEJ 1086, Practice for Numbering Metals and
14、Alloys (UNS).4For referenced ASTM standards, 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.*A Summary of Changes section appears at the end
15、 of this standardCopyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States14.1.5.1 TubeSpecify outside diameter and nominal orminimum wall,4.1.5.2 PipeSpecify standard pipe size and schedule,4.1.5.3 LengthCut to length or random,4.1.6 QuantityF
16、eet (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 CertificationState if certification is required,4.1.10 Samples for Product (Check
17、) 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 must so state indicating which tests or inspec-tions are to be witnessed, a
18、nd4.1.12 Small-Diameter and Light-Wall Tube (ConverterSizes)See Appendix X1 and Table 1.4.1.13 Supplementary Ordering Requirements: Grain SizeTest (S1): Intergranular Corrosion Test (S2); Pitting andCrevice Corrosion Test (S3) may be ordered as an option by thepurchaser in the purchase order indicat
19、ing which tests are to beincluded.5. Chemical Composition5.1 The material shall conform to the composition limitsspecified in Table 2. 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 p
20、roduct (check)analysis variations in Table 2 of Specification B829.6. Mechanical Properties and Other Requirements6.1 Tension TestThe material shall conform to the tensileproperties specified in Table 1. The sampling and specimenpreparation are as covered in Specification B829.6.2 Hydrostatic or Non
21、destructive Electric TestEach pipeor tube shall be subjected to either the hydrostatic test or to thenondestructive electric test. The type of test to be used shall beat the option of the manufacturer, unless otherwise specified inthe purchase order.7. Dimensions and Permissible Variations7.1 Permis
22、sible variations for material specified as small-diameter and light-wall tube (converter size) shall conform tothe permissible variations prescribed in Table X1.1 and TableX1.2.8. Number of Tests8.1 Chemical AnalysisOne test per lot.8.2 TensionOne test per lot.8.3 Hydrostatic or Nondestructive Elect
23、ric TestEach piecein each lot.9. Test Methods9.1 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 furn
24、ished, is as follows:UNS N06625:Grade 130 000 psi (207 MPa)Grade 225 000 psi (172 MPa)UNS N06219:All24 000 psi (165 MPa)UNS N06852:All21 000 psi (145 MPa)9.1.1 When so agreed upon by the manufacturer andpurchaser, pipe or tube may be tested to 112 times theallowable fiber stress given above.9.1.2 If
25、 any pipe or tube shows leak during hydrostatictesting, it shall be rejected.TABLE 1 Room Temperature Tensile Properties and HeatTreatment Including Small Diameter and Light-Wall Tubing(Converter Sizes)A,BConditionTensileStrength,min, ksi(MPa)CYieldStrength(0.2 %offset),min, ksi(MPa)CElongationin2in
26、.or 50.8 mm(or 4 D),min, %Alloy N06625Grade 1 (annealed)D120 (827) 60 (414) 30Grade 2 (solution annealed)E100 (690) 40 (276) 30Alloy N06219All (solution annealed) 96 (660) 39 (270) 30Alloy N06852All (solution annealed) 85 (586) 35 (241) 30ANot applicable to outside diameters under18 in. (3.2 mm) and
27、 to wall thicknessesunder 0.015 in. (0.38 mm).BHot forming quality pipe and tubing is furnished to chemical requirements andsurface inspection only. No tensile properties are required.CThe minimum strength values apply only to tubing in straight lengths.DAnnealed at 1600F (871C) minimum.ESolution an
28、nealed at 2000F (1093C) minimum, with or without subsequentstabilization anneal at 1800F (982C) minimum to increase resistance tosensitization.TABLE 2 Chemical RequirementsElementComposition Limits, %N06852 N06625 N06219Carbon 0.05 max 0.10 max 0.05 maxManganese 0.50 max 0.50 max 0.50 maxSilicon 0.5
29、0 max 0.50 max 0.70-1.10Phosphorus 0.015 max 0.015 max 0.020 maxSulfur 0.015 max 0.015 max 0.010 maxChromium 20.0-23.0 20.0 min 18.0-22.0. 23.0 max .Columbium + tantalum . 3.15 min . 4.15 max .Columbium 0.51-1.00 . .Cobalt (if determined) . 1.0 max 1.0 maxMolybdenum 8.0-10.0 8.0 min 7.0-9.010.0 max
30、.Iron 15.0-20.0 5.0 max 2.0-4.0Aluminum 0.40 max 0.40 max 0.50 maxTitanium 0.40 max 0.40 max 0.50 maxCopper . . 0.50 maxNickelABal. 58.0 min Bal.AElement shall be determined arithmetically by difference.B444 16129.2 Nondestructive Electric TestEach pipe or tube shall beexamined with a nondestructive
31、 electric test as per prescribedin Specification B829.10. Keywords10.1 seamless pipe; seamless tube; N06219; N06625SUPPLEMENTARY REQUIREMENTSOne or more of the following supplementary requirements shall apply only when specified in thepurchase order. The purchaser may specify a different frequency o
32、f test or analysis than is providedin the supplementary requirement. Subject to agreement between the purchaser and manufacturer,retest and retreatment provisions of these supplementary requirements may also be modified.S1. Grain Size TestS1.1 Grain SizeGrain size determinations shall be made inacco
33、rdance with Test Methods E112 using an intercept proce-dure or using a procedure agreed upon by purchaser and seller.Alloys UNS N06625; UNS N06852; UNS N06219 shall be 5.0or finer average Grain size. Grain size determinations shall bemade on each heat treatment lot. In the event of a dispute orquest
34、ion an E112 intercept procedure or test method must beused.S.2 Intergranular Corrosion TestS2.1 Intergranular Corrosion DeterminationsSusceptibility to Intergranular Corrosion shall be tested inaccordance with Test Methods G28 Method A with an accep-tance criteria of a maximum corrosion rate of 0.00
35、3 ipm(0.914 mmyr.).S3. Pitting and Crevice Corrosion TestS3.1 Susceptibility to pitting corrosion shall be tested inaccordance with Test Methods G48 Method C. The testtemperature shall be 75C (167F) 6 1C and the exposuretime 72 h. The acceptance criteria shall be no visible pittinggreater than 0.001
36、-in. (.025-mm) depth at 20 magnificationand a weight loss less than 1.0 g/m2(1.422 10-6 lb/in2). Endgrain or edge grain attacks invalidate the tests. In the event thetest is invalidated, a retest of the material may be made withoutpenalty. If the material is invalidated by the retest, then themateri
37、al is deemed unacceptable and may no longer be tested,and a new material test shall be made from a different heattreatment lot.APPENDIXES(Nonmandatory 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 a limite
38、drange of sizes and the manufacturer should be consulted as tothe various outside diameters and wall thicknesses that may befurnished. Material will have a bright finish. Such materialshall conform to the requirements in Tables X1.1 and X1.2.X2. CONDITIONS AND FINISHES NORMALLY SUPPLIEDX2.1 ScopeX2.
39、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.X2.2 Cold-Worked Tube and PipeX2.2.1 ColdDrawn, Annealed or Solution
40、Annealed withGround Outside DiameterThe inside diameter may have abright finish when material is annealed or solution annealed ina protective atmosphere; otherwise, the inside diameter issupplied descaled as necessary. It is available in sizes12 to 4 in.(12.7 to 102 mm), incl, in outside diameter in
41、 both normal andheavy-wall tube, and pipe sizes, all schedules, of correspond-ing outside-diameter dimensions.X2.2.2 ColdDrawn, Annealed or Solution Annealed andPickled (Not Ground)Outside and inside diameter will havedull, matte (pickled) surfaces. Available in sizes12 to 658 in.(12.7 to 168 mm), i
42、ncl, in outside diameter in both normal andheavy-wall tube, and pipe sizes, all schedules, of correspond-ing outside-diameter dimensions.B444 1613SUMMARY OF CHANGESCommittee B02 has identified the location of selected changes to this standard since the last issue(B44406(2011) that may impact the use
43、 of this standard. (Approved June 1, 2016.)(1) Addition of Supplemental testing requirements at option ofpurchaser, S1.1; S2.1; S3.1.ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentionedin this standard. Users of this standar
44、d are expressly advised that determination of the validity of any such patent rights, and the riskof infringement 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
45、not revised, either reapproved or withdrawn. Your comments are invited either for revision of this standard or for additional standardsand should be addressed to ASTM International Headquarters. Your comments will receive careful consideration at a meeting of theresponsible technical committee, whic
46、h 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,Un
47、ited States. Individual reprints (single or multiple copies) of this standard may be obtained by contacting ASTM at the aboveaddress or at 610-832-9585 (phone), 610-832-9555 (fax), or serviceastm.org (e-mail); or through the ASTM website(www.astm.org). Permission rights to photocopy the standard may
48、 also be secured from the Copyright Clearance Center, 222Rosewood Drive, Danvers, MA 01923, Tel: (978) 646-2600; http:/ X1.1 Permissible Variations for Small-Diameter and Light-Wall Tube (Converter Sizes)A,B,C,D,E,F,GSpecified Outside Diameter, in. (mm)Outside Diameter Inside Diameter Wall Thickness
49、, %PlusMinus, in.(mm)Plus Minus Plus MinusUnder332 (2.4)332 to316 (2.4 to 4.8), excl0.002 (0.05)0.003 (0.08)00000.002 (0.05)0.003 (0.08)10101010316 to12 (4.8 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 TubeOvality will be held within 2 % of the theoretical average outside diameter.BOvality, Light-Wall TubeOvality will be held within 3 % of the theoretical average outside diameter.CWall Toleranc
