1、Designation:B444161Standard 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 indicates
2、 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 of the U.S.De
3、partment of Defense.1NOTETable 2 was editorially corrected in August 2016.1.Scope*1.1 Thisspecification2coversnickel-chromium-molybdenum-columbium alloys(UNS N06625 and UNSN06852)and nickel-chromium-molybdenum-silicon alloy(UNS N06219)3in the form of cold-worked seamless pipe andtube.The general req
4、uirements 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 annealed)Material is normall
5、yemployed in service temperatures above 1100F(593C)whenresistance to creep and rupture is required.NOTE1Hot-working or reannealing may change propertiessignificantly,depending on working history and temperatures.1.1.2 Alloys UNS N06219 and UNS N06852 are supplied inthe solution annealed condition on
6、ly.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 thetest methods portion,Sec
7、tion 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 Data Sheet(SDS)forthis product/
8、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 andNickel Alloys Seamless Pipe and Tub
9、eE112 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 Related Alloys by Use ofFerric Chloride
10、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 includeinformation with respect to the following:
11、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 Dimensions:1This specification is under the jurisdiction
12、 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 previous edition approved in 2011 as B444 06(2011).DOI:1
13、0.1520/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 Alloys(UNS).4For referenced ASTM standards,visit the AS
14、TM 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 of this standardCopyright ASTM International,100 Barr Harbor
15、 Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 4.1.5.1 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 QuantityFeet(or metres)or number of pieces,4.1.7 Hydrostatic Test or Nonde
16、structive 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)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-ti
