ASTM_B_474_-_B_474M_-_15.pdf

Designation:B474/B474M15Standard Specification forElectric Fusion Welded Nickel and Nickel Alloy Pipe1This standard is issued under the fixed designation B474/B474M;the number immediately following the designation 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 specification covers electric fusion welded pipesuitable for high-temperature or corrosive service as listed inTable 1.(Although no restrictions are placed on the sizes ofpipe that may be furnished under this specification,commercialpractice is commonly limited to sizes not less than 8 in.203mm nominal diameter.)1.2 Five classes of pipe are covered as follows:1.2.1 Class 1Pipe shall be double welded by processesemploying filler metal in all passes and shall be completelyradiographed.1.2.2 Class 2Pipe shall be double welded by processesemploying filler metal in all passes.No radiography is re-quired.1.2.3 Class 3Pipe shall be single welded by processesemploying filler metal in all passes and shall be completelyradiographed.1.2.4 Class 4Same as Class 3 except that the weld passexposed to the inside pipe surface may be made without theaddition of filler metal.1.2.5 Class 5Pipe shall be double welded by processesemploying filler metal in all passes and shall be spot radio-graphed.1.3 The values stated in either SI units or inch-pound unitsare to be regarded separately as standard.The values stated ineach system may not be exact equivalents;therefore,eachsystem shall be used independently of the other.Combiningvalues from the two systems may result in non-conformancewith the standard.1.4 This standard does not purport to address all of thesafety concerns,if any,associated with its use.It is theresponsibility of the user of this standard to become familiarwith all hazards including those identified in the appropriateSafety Data Sheet(SDS)for this product/material as providedby the manufacturer,to establish appropriate safety and healthpractices,and determine the applicability of regulatory limi-tations prior to use.2.Referenced Documents2.1 ASTM Standards:2A262 Practices for Detecting Susceptibility to IntergranularAttack in Austenitic Stainless SteelsA370 Test Methods and Definitions for Mechanical Testingof Steel ProductsB127 Specification for Nickel-Copper Alloy(UNS N04400)Plate,Sheet,and StripB162 Specification for Nickel Plate,Sheet,and StripB168 Specification for Nickel-Chromium-Iron Alloys(UNSN06600,N06601,N06603,N06690,N06693,N06025,N06045,andN06696),Nickel-Chromium-Cobalt-Molybdenum Alloy(UNS N06617),and Nickel-Iron-Chromium-Tungsten Alloy(UNS N06674)Plate,Sheet,and StripB333 Specification for Nickel-Molybdenum Alloy Plate,Sheet,and StripB424 Specification for Ni-Fe-Cr-Mo-Cu Alloy(UNSN08825,UNS N08221,and UNS N06845)Plate,Sheet,and StripB435 Specification for UNS N06002,UNS N06230,UNSN12160,and UNS R30556 Plate,Sheet,and StripB443 Specification for Nickel-Chromium-Molybdenum-Columbium Alloy(UNS N06625)and Nickel-Chromium-Molybdenum-SiliconAlloy(UNS N06219)Plate,Sheet,and StripB463 Specification for UNS N08020 Alloy Plate,Sheet,andStripB536 Specification for Nickel-Iron-Chromium-Silicon Al-loys(UNS N08330 and N08332)Plate,Sheet,and StripB575 Specification for Low-Carbon Nickel-Chromium-Molybdenum,Low-CarbonNickel-Chromium-Molybdenum-Copper,Low-Carbon Nickel-Chromium-Molybdenum-Tantalum,Low-Carbon Nickel-Chromium-Molybdenum-Tungsten,andLow-CarbonNickel-Molybdenum-Chromium Alloy Plate,Sheet,and Strip1This 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 Oct.1,2015.Published November 2015.Originallyapproved in 1968.Last previous edition approved in 2009 as B474 03(2009).DOI:10.1520/B0474_B474M-15.Designation established in accordance with ASTM E527 and SAE J 1086,Practice for Numbering Metals and Alloys(UNS).2For 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 of this standardCopyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 B582 SpecificationforNickel-Chromium-Iron-Molybdenum-Copper Alloy Plate,Sheet,and StripB880 Specification for General Requirements for ChemicalCheck Analysis Limits for Nickel,Nickel Alloys andCobalt AlloysB899 Terminology Relating to Non-ferrous Metals and Al-loysE8 Test Methods for Tension Testing of Metallic MaterialsE29 Practice for Using Significant Digits in Test Data toDetermine Conformance with SpecificationsE1473 Test Methods for Chemical Analysis of Nickel,Cob