1、Designation:F837131Standard Specification forStainless Steel Socket Head Cap Screws1This standard is issued under the fixed designation F837;the number immediately following the designation indicates the year of originaladoption or,in the case of revision,the year of last revision.Anumber in parenth
2、eses indicates the year of last reapproval.Asuperscriptepsilon()indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the U.S.Department of Defense.1NOTES9 Mechanical Property Requirements was editorially corrected in March 2014.1.
3、Scope*1.1 This specification covers the chemical and mechanicalrequirements for stainless steel inch socket head cap screw(SHCS)with nominal thread 0.060 through 1.500 in.andintended for use in applications requiring general corrosionresistance.1.2 Three groups of stainless steel alloys are covered,
4、austenitic Group 1 and 2 and martensitic Group 5.1.3 Four property conditions are covered:austenitic AlloyGroups 1 and 2 in an annealed condition(AF)at 85 ksimaximum,in two cold worked conditions(CW)at 80 ksiminimum,(CW1)at 102 ksi minimum,and martensitic AlloyGroup 5 in a heat treated condition(HT)
5、at 160 ksi minimum.1.4 The values stated in inch-pound units are to be regardedas standard.No other units of measurement are included in thisstandard.1.5 The following precautionary caveat pertains only to thetest method portion,Section 13,of this specification:Thisstandard does not purport to addre
6、ss all of the safety concerns,if any,associated with its use.It is the responsibility of the userof this standard to establish appropriate safety and healthpractices and determine the applicability of regulatory limita-tions prior to use.2.Referenced Documents2.1 ASTM Standards:2A262 Practices for D
7、etecting Susceptibility to IntergranularAttack in Austenitic Stainless SteelsA342/A342M Test Methods for Permeability of WeaklyMagnetic MaterialsA380 Practice for Cleaning,Descaling,and Passivation ofStainless Steel Parts,Equipment,and SystemsA555/A555M Specification for General Requirements forStai
8、nless Steel Wire and Wire RodsA751 Test Methods,Practices,and Terminology for Chemi-cal Analysis of Steel ProductsA967 Specification for Chemical Passivation Treatments forStainless Steel PartsD3951 Practice for Commercial PackagingE18 Test Methods for Rockwell Hardness of Metallic Ma-terialsE92 Tes
9、t Method for Vickers Hardness of Metallic Materials(Withdrawn 2010)3E384 Test Method for Knoop and Vickers Hardness ofMaterialsF606 Test Methods for Determining the Mechanical Proper-ties of Externally and Internally Threaded Fasteners,Washers,Direct Tension Indicators,and RivetsF788/F788M Specifica
10、tion for Surface Discontinuities ofBolts,Screws,and Studs,Inch and Metric SeriesF1470 Practice for Fastener Sampling for Specified Me-chanical Properties and Performance Inspection2.2 ASME Standard:ASME B18.3 Socket Cap,Shoulder,and Set ScrewsInchSeries42.3 JIS Standard:JIS G 4311 Heat Resisting Ste
11、el Bar and Wire Rods43.Classification3.1 The austenitic stainless steel socket head cap screw shallbe designated F837 Group 1 or 2 Condition AF,F837 Group 1or 2 Condition CW,or F837 Group 1 or 2 Condition CW1.3.2 The martensitic stainless steel socket head cap screwshall be designated F837 Group 5 C
12、ondition HT.1This specification is under the jurisdiction of ASTM Committee F16 onFasteners and is the direct responsibility of Subcommittee F16.04 on NonferrousFasteners.Current edition approved Nov.1,2013.Published December 2013.Originallyapproved in 1988.Last previous edition approved in 2008 as
13、F837 08.DOI:10.1520/F0837-13E01.2For 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.3The last approved version of this
14、 historical standard is referenced onwww.astm.org.4Available from Global Engineering Documents,15 Inverness Way,EastEnglewood,CO 80112-5704,http:/.*A Summary of Changes section appears at the end of this standardCopyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 1942
15、8-2959.United States1 4.Ordering Information4.1 Orders for socket head cap screws under this specifica-tion shall include:4.1.1 Quantity(number of pieces of each item).4.1.2 Name of the item(socket head cap screws,SHCS).4.1.3 Size(nominal diameter,thread pitch,thread class,screw length)or part numbe
16、r.4.1.4 Alloy Group(see 7.1)and Condition(Group 1 or 2AF,Group 1 or 2 CW,Group 1 or 2 CW1,or Group 5 HT).4.1.5 ASTM specification and year of issue.When year ofissue is not specified,fasteners shall be furnished to the latestissue.4.1.6 Supplementary requirements,if any,(see S1 throughS7).4.1.7 Additional special requirements,if any,to be specifiedon the purchase order:4.1.7.1 Forming(see 5.1).4.1.7.2 Threading(see 5.2).4.1.7.3 Surface finish(see 11.1).4.1.7.4 Alloy selection(see 7.2).4.1.7.5 Te
