1、Designation:A 694/A 694M 00An American National StandardStandard Specification forCarbon and Alloy Steel Forgings for Pipe Flanges,Fittings,Valves,and Parts for High-Pressure Transmission Service1This standard is issued under the fixed designationA 694/A 694M;the number immediately following the des
2、ignation 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(e)indicates an editorial change since the last revision or reapproval.1.Scope1.1 This specification covers forged o
3、r rolled steel pipeflanges,forged fittings,valves,and parts suitable for use withhigh-strength transmission-service pipe.Included are flanges,fittings,and similar parts ordered either to dimensions specifiedby the purchaser or toASME dimensional standards referencedin Section 2.1.2 Several grades of
4、 material,based on minimum yieldstrength requirements,are covered,as indicated in Table 1.1.3 Supplementary Requirements are provided.Supplemen-tary Requirement S 1 is provided for use when purchaserapproval is required for repair welding.1.4 This specification is expressed in both inch-pound unitsa
5、nd in SI units.However,unless the order specifies theapplicable“M”specification designation(SI units),the mate-rial shall be furnished to inch-pound units.1.5 The values stated in either inch-pound units or SI unitsare to be regarded separately as standard.Within the text,theSI units are shown in br
6、ackets.The values stated in eachsystem are not exact equivalents;therefore,each system mustbe used independently of the other.Combining values from thetwo systems may result in nonconformance with the specifi-cation.2.Referenced Documents2.1 In addition to those reference documents listed inSpecific
7、ation A 961,the following list of standards apply tothis specification:2.2 ASTM Standards:A 53/A 53M Specification for Pipe,Steel,Black and Hot-Dipped,Zinc-Coated,Welded and Seamless2A 106 Specification for Seamless Carbon Steel Pipe forHigh-Temperature Service2A 381 Specification for Metal-Arc-Weld
8、ed Steel Pipe forUse with High-Pressure Transmission Systems2A 707/A 707M Specification for Forged Carbon and AlloySteel Flanges for Low-Temperature Service2A 788 Specification for Steel Forgings,General Require-ments3A 961 Specification for Common Requirements for SteelFlanges,Forged Fittings,Valve
9、s,and Parts for PipingApplications22.3ASME Standards:ASME B 16.5 Steel Pipe Flanges and Flanged Fittings4ASME B 16.9 Steel Butt-Welding Fittings4ASME B 16.10 Face-to-Face and End-to-End Dimensionsof Ferrous Valves4ASME B 16.11 Forged Steel Fittings,Socket Welding andThreaded4ASME B 16.28 Wrought Ste
10、el Butt-Welding Short RadiusElbows4ASME B 16.47 Large Diameter Steel Flanges4B and PV Code Section IX,Welding Qualifications42.4MSS Standards:5MSS SP-44 Standard for Steel Pipe Line FlangesMSS SP-75 Specification for High-Test Welding FittingsMSS SP-95 Swage(d)Nipples and Bull PlugsMSS SP-97 Integra
11、lly Reinforced Forged Branch OutletFittings2.5API Standard:5L Specification for Line Pipe61This specification is under the jurisdiction of ASTM Committee A-1 on Steel,Stainless Steel,and RelatedAlloys,and is the direct responsibility of SubcommitteeA01.22 on Valves and Fittings.Current edition appro
12、ved March 10,2000.Published May 2000.Originallypublished as A 694 74.Last previous edition A 694/A694M 99.2Annual Book of ASTM Standards,Vol 01.01.3Annual Book of ASTM Standards,Vol 01.05.4Available from American Society of Mechanical Engineers,Three ParkAvenue,New York,NY 10016-5990.5Available from
13、 the Manufacturers Standardization Society of the Valve andFittings Industry,127 Park St.,Northeast,Vienna,VA 22180.6Available from American Petroleum Institute,1801 K St.N.W.,Washington,DC 20037.TABLE 1Tensile RequirementsGradeYield Strength(0.2%Offset),min,ksi MPaTensile Strength,min,ksi MPaElonga
14、tion in 2in.or 50 mm,min%F4242 29060 41520F4646 31560 41520F4848 33062 42520F5050 34564 44020F5252 36066 45520F5656 38568 47020F6060 41575 51520F6565 45077 53020F7070 48582 565181Copyright ASTM,100 Barr Harbor Drive,West Conshohocken,PA 19428-2959,United States.3.Ordering Information3.1 It is the pu
15、rchasers responsibility to specify in thepurchase order all ordering information necessary to purchasethe needed material.In addition to the ordering guidelines inSpecification A 961,orders should include the following infor-mation:3.1.1 Additional requirements(see 8.1 and 10.1).4.General Requiremen
16、ts4.1 Product furnished to this specification shall conform tothe requirements of Specification A 961,including any supple-mentary requirements that are indicated in the purchase order.Failure to comply with the general requirements of Specifica-tion A 961 constitutes nonconformance with this specification.In case of conflict between the requirements of this specifica-tion and Specification A 961,this specification shall prevail.5.Manufacture5.1 Melting Process:5.1.1The steel shall be made by an