ASTM_F_1311_-_90_2012.pdf

Designation:F131190(Reapproved 2012)An American National StandardStandard Specification forLargeDiameter Fabricated Carbon Steel Flanges1This standard is issued under the fixed designation F1311;the number immediately following the designation indicates 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.1.Scope1.1 This specification provides design and constructioncriteria for large diameter flanges sizes 14 to 144 NPS,for usein high temperature(1000F),low pressure service(25 psig),such as internal combustion engine exhaust and forced venti-lation systems.1.2 Values stated in inch-pound units are to be regarded asthe standard.2.Referenced Documents2.1 ASTM Standards:2A36/A36M Specification for Carbon Structural SteelF1155 Practice for Selection and Application of PipingSystem Materials2.2 American Water Works Association:3AWWA C207 Steel Pipe Flanges for Waterwork Service4 in.through 144 in.2.3 Other Documents:American Bureau of Shipping Rules for Building andClassing of Steel Vessels,ABS Grade A4American Welding Society Publication,AWS D 1.1 Struc-tural Welding Code5Code of Federal Regulations Title 46,Subpart 56.3010(b)(5)6ASME Boiler and Pressure Vessel Code,Section IX,Weld-ing Qualifications73.Classification3.1 Type IPlate flanges,for sizes 14 in.inside diameter upto and including 144 in.inside diameter(see Fig.1).3.2 Type IIRolled angle flanges,for sizes 14 in.up to andincluding 108 in.inside diameter(see Fig.1).4.Ordering Information4.1 Flanges ordered under this specification shall includethe following:4.1.1.ASTM designation,title,number,and date of thisspecification,4.1.2 Type and material,4.1.3 Nominal pipe size,4.1.4 Quantity,and4.1.5 Inspection of items shall be agreed upon between thepurchaser and the supplier.5.Dimensions and Tolerances5.1 DimensionsDimensions shall be in accordance withTable 1.5.2 Tolerances:5.2.1 Plus or minus14in.on outside and inside diametersshall apply on flanges of 22 in.nominal pipe size and above.The tolerance for flanges for 20 in.nominal size and belowshall be 618in.5.2.2 Plus or minus116in.on bolting circle.6.Drilling6.1 Number of holes,hole diameter,and bolt circle areidentical for both Type I and Type II flanges.6.2 Bolt holes shall be equally spaced on the bolt circle.6.3 Bolt holes provide for18in.diameter clearance on bolts.6.4 Drilling of flanges shall be in accordance with Table 1.1This specification is under the jurisdiction of ASTM Committee F25 on Shipsand Marine Technology and is the direct responsibility of Subcommittee F25.11 onMachinery and Piping Systems.Current edition approved May 1,2012.Published May 2012.Originallyapproved in 1990.Last previous edition approved in 2006 as F1311 90(2006).DOI:10.1520/F1311-90R12.2For 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.3Available from American Water Works Association(AWWA),6666 W.QuincyAve.,Denver,CO 80235,http:/www.awwa.org.4Available from American Bureau of Shipping(ABS),ABS Plaza,16855Northchase Dr.,Houston,TX 77060,http:/www.eagle.org.5Available from American Welding Society(AWS),550 NW LeJeune Rd.,Miami,FL 33126,http:/www.aws.org.6Available from Standardization Documents Order Desk,DODSSP,Bldg.4,SectionD,700RobbinsAve.,Philadelphia,PA19111-5098,http:/dodssp.daps.dla.mil.7Available from American Society of Mechanical Engineers(ASME),ASMEInternational Headquarters,Three Park Ave.,New York,NY 10016-5990,http:/www.asme.org.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 7.Workmanship,Finish,and Appearance7.1 Flanges manufactured under this specification shall befree of all sharp edges,burrs,projections,weld spatter,andother defects that might be hazardous to personnel orequipment,or both.7.2 Welding shall be in accordance with the AmericanBureau of Shipping Rules for Building and Classing of SteelVessels,ABS GradeA,American Welding Society PublicationsD1.1,or ASME Code Section IX.7.3 Flange faces shall be smooth and free of projections orindentations that would prevent effective gasket seals.7.4 Flanges when completed shall have no distortion,roundness,or flatness exceeding a tolerance of 618in.7.5 The surface finish shall be a minimum of 500 in.toensure proper sealing surface for the gasket.7.6 The material to be used for this specification shall be inaccordance with Specification A36/A36M,unless prolongedhigh temperatures will be required;in that case ABS Grade Asteel shall be specified in Section 4.For further guidance forselection of materials,see Practice F1155 and CFR 56.30-10(b)(5).8.Rejection and Rehearing8.1 Flanges that fail to conform to the requirements of thisspecification