ASTM_A_961_-_A_961M_-_16a.pdf

Designation:A961/A961M16aStandard Specification forCommon Requirements for Steel Flanges,Forged Fittings,Valves,and Parts for Piping Applications1This standard is issued under the fixed designation A961/A961M;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 a group of common require-ments that shall apply to steel flanges,forged fittings,valves,and parts for piping applications under any of the followingindividual product specifications:Title of SpecificationASTM DesignationForgings,Carbon Steel,for Piping ComponentsA105/A105MForgings,Carbon Steel,for General-Purpose PipingA181/A181MForged or Rolled Alloy-Steel Pipe Flanges,ForgedA182/A182MFittings,and Valves and Parts for High TemperatureServiceForgings,Carbon and Low Alloy Steel,Requiring NotchA350/A350MToughness Testing for Piping ComponentsForged or Rolled 8 and 9%Nickel AlloyA522/A522MSteel Flanges,Fittings,Valves,and Partsfor Low-Temperature ServiceForgings,Carbon and Alloy Steel,for Pipe Flanges,A694/A694MFittings,Valves,and Parts for High-PressureTransmission ServiceFlanges,Forged,Carbon and Alloy Steel for LowA707/A707MTemperature ServiceForgings,Carbon Steel,for Piping Components withA727/A727MInherent Notch ToughnessForgings,Titanium-Stabilized Carbon Steel,forA836/A836MGlass-Lined Piping and Pressure Vessel Service1.2 In case of conflict between a requirement of the indi-vidual product specification and a requirement of this generalrequirement specification,the requirements of the individualproduct specification shall prevail over those of this specifica-tion.1.3 By mutual agreement between the purchaser and thesupplier,additional requirements may be specified(see Section4.1.2).The acceptance of any such additional requirementsshall be dependent on negotiations with the supplier and mustbe included in the order as agreed upon between the purchaserand supplier.1.4 The values stated in either SI units or inch-pound unitsare to be regarded separately as standard.Within the text andthe tables,the SI units are shown in brackets.The values statedin each 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.The inch-pound units shall apply,unless the“M”designation(SI)of the product specification is specified inthe order.2.Referenced Documents2.1 ASTM Standards:2A105/A105M Specification for Carbon Steel Forgings forPiping ApplicationsA181/A181M Specification for Carbon Steel Forgings,forGeneral-Purpose PipingA182/A182M Specification for Forged or Rolled Alloy andStainless Steel Pipe Flanges,Forged Fittings,and Valvesand Parts for High-Temperature ServiceA275/A275M Practice for Magnetic Particle Examination ofSteel ForgingsA350/A350M Specification for Carbon and Low-Alloy SteelForgings,Requiring Notch Toughness Testing for PipingComponentsA370 Test Methods and Definitions for Mechanical Testingof Steel ProductsA522/A522M Specification for Forged or Rolled 8 and 9%Nickel Alloy Steel Flanges,Fittings,Valves,and Parts forLow-Temperature ServiceA694/A694M Specification for Carbon and Alloy SteelForgings for Pipe Flanges,Fittings,Valves,and Parts forHigh-Pressure Transmission ServiceA700 Guide for Packaging,Marking,and Loading Methodsfor Steel Products for ShipmentA707/A707M Specification for Forged Carbon and AlloySteel Flanges for Low-Temperature ServiceA727/A727M Specification for Carbon Steel Forgings forPiping Components with Inherent Notch ToughnessA751 Test Methods,Practices,and Terminology for Chemi-cal Analysis of Steel Products1This specification is under the jurisdiction of ASTM Committee A01 on Steel,Stainless Steel and Related Alloys and is the direct responsibility of SubcommitteeA01.22 on Steel Forgings and Wrought Fittings for Piping Applications and BoltingMaterials for Piping and Special Purpose Applications.Current edition approved Dec.1,2016.Published December 2016.Originallyapproved in 1996.Last previous edition approved in 2016 as A961/A961M 16.DOI:10.1520/A0961_A0961M-16A.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 A836/A836M Specification for Titanium-Stabilized CarbonSteel Forgings for Glass-Lined Piping and Pressure VesselServiceA941 Terminology Relating to Steel,Stainless Steel,RelatedAlloys,and FerroalloysA967/A967M Specification for Chemical Passivation Treat-ments for