1、IEmI!ElPIIL-S-2LlfJ9C(SH)ch 1989“SUPERSEDING1IMIL-s-2.i149B1 June 1981(See 6.8)MILITARY sPECIFICATIONSTUDS , WELDING, AND ARC SHIELDS (FSRRULES),GSNSRAL SPECIFICATION FORThis specification is approved for use by the Naval Sea SystemsCommand, Department of the Navy, and is available for use by allDep
2、artments and Agenties of the Department of Defanse.1. SCOPE1.1 -. This specification covers studs for welding with stud weldingequipment and arc shields (ferrules) for shielding studs where applicable.12 c a. Studs and arc shields (ferrules) shall be of thefollowing types, as specified (see 6.2). Cl
3、asses and styles shall be as speci-fied on the applicable speciflcation sheet.Type I -Type II -Type III -Type IV -Type V - Type VI -Type VII -Type VIII -Carbon steel studs, fluxless weld-end:Carbon steel.studs, solid flux or aluminum flux coatedweld-end.Aluminum alloy studs, bulb weld-end.Aluminum a
4、lloy studs, cone protection weld-end.Corrosion-resistant steel studs, solid flux weld-end.Carbon steel studs, tipped or pointed weld-end.AluMinUIn alloy studs, tipped or pointed weld-end.Corrosion-resistant steel studs , tipped or pointed weld-end.2. APPLICABLE DOCUMENTS2.1 Government documents.2.1.
5、1 d. catin d sca The following specifications andstandards form a part of this document to che extent “specifiedherein. Unlessothervise specified, the issues of these documents are those “listed in the issueof the Department of Defense Index of Specifications and Standards (DoDISS) andsupplement the
6、reto, cited in the solicitation (see 6.2).Beneficial commencs (recommendations , additions , deletions) and any pertinentdata which may be of use in improving this document should be addressed to:Commander, Naval Sea SysternsCommand, SEA 55Z3, Department of the Navy,Washington, DC 20362-5101 by usin
7、g the self-addressed Standardization DocumentImprovement Proposal (DD Form 1426) appearing at the end of thfs document orby letter.AUSC N/A FSC 5307p . Approved for public release; distribution is unlimited.Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS
8、-,-,-uIL-S-2.4149C(SH)SPECIFICATIONSFEDERALQQ-P-35 -PPP-F-320 .PPP-H-1581 .nILrTARYMIL-c-lf4550 -!41L-L-191L0 -NIL-C-87115 -(See supplementSTANDARDSMILITARYPassivation Treatments for Corrosion-ResistingSteel.Fiberboard; Corrugated and Solid, Sheet Stock(Concainez Grade) , and Cut Shapes.Hardware (Fa
9、steners and Related Items), PackagingofCopper Plating (Electrodeposited)Lumber and Plywood, Fire-Retardant Treated.Coating, Immersion Zinc Flake/Chromste Dispersion.1 for list of associated specification sheets.)MIL-STD-248 - Welding and Brazing Procedure and PerfonnenceQualification.MIL-STO-1318 -
10、Fastener Test Methods Method 8, Tensile Strength.(Unless othervise indicated, copies of federal and military specificationsand standards are available from the Naval Publications and Forms Center, (ATTN:NPODS) , 5801 Tabor Avenue, Philadelphia, PA 19120-5099) .2.2 Non -Government uublicati ons. The
11、following documents form a part ofchfs document to che extent specified herein. Unless othervise specified, theissues of the documents which are DoD adopted are those listed in the issue ofche DoDISS cited in the solicitation. Unless othervise specified, the issues ofdocuments not listed in the DoDI
12、SS are the issues of the documents citsd in thesolicitation (see 6.2)AUERICAN SOCIETY FQR TESTING AND MATERIAM (ASTH)A 380 -A 75L -B 633 -B 695 -E3k -E 353 -Standard Practice for Cleaning and Descaling StainlessSteel Parts, Equipment, and Systems. (DoD adopted)Standard Methods, Practicas, and Defini
13、tions for ChemicalAnalysis of Sreel Products,Standard Specification for Electrodeposited Coatings ofZinc on Iron and Steel. (DOD adopted)Standard Specification for Coatings of Zinc MechanicallyDeposited on Iron and Steel. (DoD admpted)Standard Test Methods for Chemical AIwlysis of Aluminumand Alumin
14、um Base Alloys. (DoD adopted)Standard Methods for Chemical Analysis of Stainless Heat-Resisting, !4araging and Other Similar Chromium - Nickel -Iron Alloys.(Application for copies should be addressed to the American Sociecy for1Testing and Materials , 1916 Race Street, Philadelphia, PA 19103.)I 2Pro
15、vided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-S-24149C(SH)AHSRICAN NATIONAL STANDARDS INSTITUTE (ANSI)B1.1 - Unified Inch Screw Threads (UN and UNR Thread Fotm) .(Application for copies should be addressed to the American Society ofMechanical Engi
16、neers, 345 East 47th Street. New York, NY 10017 or the AmericanNational Scandsrds Institute, 1430 Broadway, New York, NY 1001B.)(Non-Goverrunent standards and other publications are normally available fromthe organizations that prepare or distribute the documents. These documents alsomay be availabl
17、e in or through libraries or other informational services. )2.3 9 ecedenc . In tbe event of a conflict between the text ofthis document and the references cited herein (except for related specificationsheets) , the text of this document takes precedence. Nothing in this document,however, supersedes
18、applicable laws and regulations unless a specific exemptionhas been obtained.3. RECJJIRENSNTS3.1 s. The individual item requirements shall be asspecified herein and in accordance with the applicable specification sheets. Inthe event of any conflict between requirements of this specification and theI
19、 specification sheet, the latter shall govern.3.2 First article. When specified (see 6.2), a ssmple shall be subjectedto first article inspection (see 6.4) in accordance with 4.3.3.3 rnaterial.3.3.1.1 Studs twes I. II. and VI) Studs shall be manufactured fromcarbon “steel of chemical composition ind
20、icated in the appropriate specificationsheet.3.3.1.2 Studs (tvu es IV. and VIII. Studs shall be manufactured fromaluminum alloy of chemical composition indicated in the appropriate specificationsheet.3.3.1.3 Studs (CVDes V and VIII1. Studs shall be manufactured fromcorrosion-resistant steel (GRES) o
21、f chemical composition indicated in theappropriate specification sheet. Studs shall be fabricated from annealed barstock (90 Rockvall B msximum hardness) .3.3.2 Arc shields (ferrules Arc shields (ferrules) , as applicable, shallbe formed of heat-resistant ceramic a75aterial capable of maintaining th
22、eirdesigned shape when subjected co the heat of the metallic arc. The number ofvents is optional.3.3.3 w u. Solid flux for use on solid flux studs and aluminumflux for use on aluminum flux coated weld-ends shall be commercially pure alum-inum of suitable size and shape to assure satisfactory welding
23、 characteristics.3Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-S-2L1L9C(SH)3.3.4 Recovered materia. Unless otherwise specified herein, all materialand articles incorporated in the products covered by this specification shall benew and may be f
24、abricated using materials produced fram recovered materials tothe maximum extent practicable without jeopardizing the intended use. The term“recovered a75aterials - means materials which have been collected or recovered fromsolid waste and reprocessed co become a source of raw materials , as opposed
25、 tovirgin raw materials None of the above shall be interpreted to mean that theuse of used or rebuilt products is allowed under this specification unlessotherwise specifically specified.3.43.4.1 readq. All threads shall be in accordance with ANSI B1.1 asspecified on individual specification sheet.3.
26、6.2 Grooves (annular . i%egrooves (annular rings) of the studshall be made by rolling or machining.3.4.3 . I%e concentricity of the scud diameter of thethreaded parts, shank, collar, shoulders and weld-ends to each other and co theinserted flux or slag points shall not vary more than 0.050 inch.3.4.
27、4 F1ux components. Flux components, as applicable, shall be tightlyfitted and secured to the scud.3.4.5 Arc shields. Arc shields shall be supplied with studs as applicable.The arc shield dimensions shall be compatible with standard stud-welding equip-ment.3.5 r acte st CS. The studs shall meet the f
28、ollowingperformance reuiens, when subjected to the applicable tests specified in 6.5and 4.6.3.5.1 Chemical analYsis. The chemical composition of the studs shall be inaccordance with that specified on the applicable specification sheet (see 4.5.2) .3.5.2 w. The studs shall withstand the bend tests wi
29、th no visualevidence of cracking in the weld zone (see 4.6.1) .3.5.3 le streno b The studs shall meet the tensile strength require -ments specified on the appiable specification sheet (see 4.6.2) .3.5.4 loroue. If the torque test of 4.6.3 is conducted in lieu of tensiletesting, scud r.breadsshall be
30、 free of any lubricant and shall meet the minimumtorque value specified in table 1.IProvided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-S-24149C(SH)TABLE 1. Ui um t raue reuu ements (ft-lbl.Stud thread Carbon steelsize Aluminum or CRESNo, 10 . 2.6l/&
31、 5 6.55/16 9.6 12.53/8 16 237/16 24 371/2 36 575/8 - 1153/4 . 2073.6 fiOtecti ve cOat&g or tre. Unless otherwise specified in thecontract (see 6.2), all studs shall be furnished vithout protective coating ortreatment.3.6.1 Zinc coat. When specified (see 6.2), carbon steel studs shall bezinc coated i
32、n accordance with ASTM B 633, type II, clsss Fa/Zn 13. AS B 695,class 12, or 141L-C-87115, class 3.3.6.2 j When specified (see 6.2) , carbon steel studs shallbe copper coatedein accordnce with 141L-C-14550.3.6.3 PassiVa tion. When specified (see 6.2), corrosion-resistant steelstuds shall be cleaned
33、and descsled in accordance with ASTM A 380, and passivatedin accordance with QQ-P-35.3.7 Workmanship. The workmanship shall be uniform in quality and chesurface shall not concain any foreign matter, corrosion, or detrimental defects,such as perforations, sharp edges or corners, seams, cracks, laps,
34、dents, raisedmetal, nicks, scratches, burrs, or other irregularities which a75ight adverselyaffect performance, reliability, maintainability, or safety.4. QUALITY ASSURANCE PROVISIONS.4.1 Jlesr.onsibilitvfor insnect. Unless othervise specified in thecontract or purchase order, the contractor is resp
35、onsible for the performance ofall inspection requirement (examinations and tests) as specified herein. Exceptas otherwise 5pecified in the contract or purchase order, the contractor may usehis own or any other facilities suitable for the performance of the inspectionrequtremencs specified herein, un
36、less disapproved by the Government. lheGovernment reserves the right to perform any of the inspections set forth in thisspecification where such inspections are deemed necessary to ensure supplies andservices conform to prescribed requirements.4.1.1 esponsibilitv for compliance. All items shall meet
37、 all requirementsof sections 3 and 5. The inspection set forth in this specification shall becomea pare of che contractors overall inspection system or quality program. Theabsence of any inspection requirements in the specification shall not relieve thecontractor of the responsibility of ensuring th
38、at all products or supplies5Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-HIL-S-24149C(SH)submitted to the Government for acceptance comply with all requirernencs of thecontract Ssmpling inspection, as part of the manufacturing operations, is anacc
39、eptable praccice to ascertain conformance to requirements, however, this doesnot authorize submission of knwn defective material, either indicated or actual,nor does it commit the Governmsnc to accept defective material.!4.2assification of insuectiom. The inspection requirements specifiedherein are
40、classified as follows:(a) First article inspection (see 4.3).(b) Quality conformance inspection (see 6.4) .4.3 F t ecticn1. First article inspection shall consist ofthe examinations and tests specified in 4.5 and 1+.6(see 6.3 and 6.6).4.3.1 First articl unit. Forty studs of each type and class havin
41、g thessme weld-end geometry, lus, and arc shield for vhich first article approval isrequired shall be subjected to first article inspection. The 40 studs shall besubjected to the visusl and dimensional examinations speclfied in 4.5. Twentywelded scud samples shall be bend tested in accordance with 4
42、.6.1 and 20 weldedstud samples shall be tensile tested in accordance with 4.6.2.4.3.2 Retest. If failure occurs in the weld zone for any bend test or acless than specified minimum tensile strength of the stud in any of the tensfIetests, a new first article unit shall be prepared and tested. Repetiti
43、on of suchfailures shall be cause for refusal to grant first article approval.4.3.3 AcceDtanc. For a stud and arc shield to be first article approved,each stud of each group of 40 studs shall, by test or retest, meet all firstarticle inspection requirements.4.3.4 Duration of first article avnroV+ll.
44、 A type and class of stud witharc shield, once first article inspected, is considered first article approveduntil the stud manufacturer makes any change in the weld-end geometry, a75aterial ,flux, or arc shield which affects the welding characteristics (see 6.3) .Ii.11 gual itv Cdorm ante inspection
45、s.4.4.1 . A lot shall consisr of all sLuds and arc shields of one heat fstud material (ssme type and class covered by a single specification sheet) andproduced under essentially the same conditioms (see 6.3),L.4.2 b Dection conditio=. Unless otherwise specified in the contract(see 6.2), allsinspecti
46、ons shall be performed in accordance with the testconditions specified in the applicable test method paragraph.1+.4,3 Sam ling.4.4.3.1 Samvles for visual and dimensional inspection. Ssmplea shall beselected for visual and dimensional inspection as shown in table 11. Thefollowing discrepancies shall
47、be considered defective for rejection purposes:6Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-S-2L149C(SH)I!I1(a)(b)(c)(d)(e)TABLS II.Material failing to meet specified requirements.Dimensions not within specified tolerances.Protective coaxings
48、 or treatment failing to meet specifiedrequirements.Flux inserts (as applicable) , nonconforming, missing, or nottightly fitted.Arc shields, improper size, chipped or cracked.SemDline for visual and dimensional examination.Number of studsin inspection lot2-1516 - 2526 - 90- 1501: - 280281 - 500501 -
49、 12001201 - 32003201 - 1000010001 - 3500035001 - 150000150001 - 500000500001 & overNumber of scudsin Szmple23581320325080125200315.5004.4.3.2 lvsis. One sample shall be selecr.ed fromeach heat or lot (see 6.3)6.6.3.3 0IXL$l e test. Sample size shallspecified in table 111.TABLE 111. amullnz for bend and tensile teSts.I Number of sc,uds I Number of studgin inspection lot in sample2 - 50 251 - 500 3501 - 35000 535001 an
