1、Designation:A795/A795M13Standard Specification forBlack and Hot-Dipped Zinc-Coated(Galvanized)Welded andSeamless Steel Pipe for Fire Protection Use1This standard is issued under the fixed designation A795/A795M;the number immediately following the designation indicates the yearof original adoption o
2、r,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 black and hot-dipped galva-nized welded and seamless stee
3、l pipe in NPS 1/2 to NPS 10,inclusive DN 15 to DN 250,inclusive(Note 1),with wallthicknesses as given in Table 1 and Table 2.Pipe having otherwall thicknesses may be furnished provided such pipe complieswith all other requirements of this specification and the outsidediameter is as given in Table 2.
4、Pipe ordered under thisspecification is intended for use in fire protection systems.Thepipe may be bent,but it is not intended for bending made atambient temperature wherein the inside diameter of the bend isless than twelve times the outside diameter of the pipe beingbent(Note 2).NOTE1The dimension
5、less designators NPS(nominal pipe size)andDN(nominal diameter)have been substituted in this standard for suchtraditional terms as“nominal diameter,”“size,”and“nominal size.”NOTE2Successful bending of pipe is a function of equipment andtechnique as well as pipe properties.1.2 This pipe is suitable fo
6、r joining by the followingmethods:1.2.1 Light-Weight Fire Protection Pipe Rolled groove,welding,and fittings for plain end pipe.See Table 1 fordimensions.1.2.2 Standard-Weight Fire Protection PipeCut or rolledgroove,threading,welding,and fittings for plain end pipe.SeeTable 2 for dimensions.1.2.3 Fo
7、r pipe having dimensions other than those of Table1 and Table 2,the joining method must be compatible with thepipe dimensions.A complete listing of standard light weightdimensions appears in ASME B36.10 and B36.19.1.3 The following safety hazards caveat pertains only to thetest method portion,Sectio
8、ns 8,9,and 10,of this specification:This standard does not purport to address all of the safetyconcerns,if any,associated with its use.It is the responsibilityof the user of this standard to establish appropriate safety andhealth practices and determine the applicability of regulatorylimitations pri
9、or to use.1.4 The values stated in either SI units or inch-pound unitsare to be regarded separately as standard.Within the text,theSI units are shown in brackets.The values stated in eachsystem may not be exact equivalents;therefore,each systemshall be used independently of the other.Combining value
10、sfrom the two systems may result in non-conformance with thestandard.2.Referenced Documents2.1 ASTM Standards:2A90/A90M Test Method for Weight Mass of Coating onIron and Steel Articles with Zinc or Zinc-Alloy CoatingsA700 Practices for Packaging,Marking,and Loading Meth-ods for Steel Products for Sh
11、ipmentA751 Test Methods,Practices,and Terminology for Chemi-cal Analysis of Steel ProductsA865 Specification for Threaded Couplings,Steel,Black orZinc-Coated(Galvanized)Welded or Seamless,for Use inSteel Pipe JointsB6 Specification for ZincE213 Practice for Ultrasonic Testing of Metal Pipe andTubing
12、E309 Practice for Eddy-Current Examination of Steel Tubu-lar Products Using Magnetic SaturationE570 Practice for Flux Leakage Examination of Ferromag-netic Steel Tubular Products2.2 ASME Standards:B1.20.1 Pipe Threads,General Purpose,Inch3B36.10 Welded and Seamless Wrought Steel Pipe3B36.19 Stainles
13、s Steel Pipe32.3 Federal Standard:Fed.Std.No.123 Marking for Shipments(Civil Agencies)41This specification is under the jurisdiction of ASTM Committee A01 on Steel,Stainless Steel and Related Alloys and is the direct responsibility of SubcommitteeA01.09 on Carbon Steel Tubular Products.Current editi
14、on approved May 1,2013.Published June 2013.Originallyapproved in 1982.Last previous edition approved in 2012 as A795/A795M08(2012).DOI:10.1520/A0795_A0795M-13.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTM
15、Standards volume information,refer to the standards Document Summary page onthe ASTM website.3Available from American Society of Mechanical Engineers(ASME),ASMEInternational Headquarters,Three Park Ave.,New York,NY 10016-5990,http:/www.asme.org.4Available from Standardization Documents Order Desk,Bl
16、dg.4 Section D,700Robbins Ave.,Philadelphia,PA 19111-5094,Attn:NPODS.*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 States1Copyright by ASTM Intl(all rights reserved);2.4 Military Standards:MIL-STD-129 Marking for Shipment and Storage4MIL-STD-163 Steel Mill Products,Preparation for Ship-ment and Storage43.Terminology3.1 Definitions of Terms Specific to This Standard:3.1.1defect
