1、,.,”1I.;.MIL-S-50783(MU)20 September1973, MILITARYSPECIFICATIONSTEELAIJJOY,SPECIALPURPOSEFOR .AMMUNITIONCOMFONENTS(lIF-l)1. SCOPE 1.1 Scope.-This specification covers hot rooled bars and semi-finishedbillets of a specific composition to be used in the manufacture of Artillery,Warhead and Mortar Ammu
2、nition Components.2. APPLICABLE DOCUMENTS2.1 The followingdocumentsof the issuein effecton date of invitationforbids or requestfor proposal,form a part of this specificationto theextentspecifiedherein.SPECIFICATIONSMilitaryMIL-A-2550 - Ammunition and Special Weapons General SpecificationsforSTANDARD
3、S 1.,)MilitaryMIL-STD-109 - Quality Assurance Terms and Definitions2.2 Otherpublications.-Thefollowingdocumentsforma part ofspecificationto the extentspetiifiedherein. Unlessotherwiseindicated,the;.,;,.thisisue in effect on date of invitation for bids or request for proposal shallapply.ASTM-A29ASTM-
4、A27JASTM-A317AsTM-A322SpecificationforGeneralRequirementsforHotRolledand ColdFinishedCarbonandAlloy SteelBarsAlloy SteelBlooms,Billets,and SlabsforGorging,SpecificationforMacroEtchTesting and Inspectionof SteelForgingsHot RolledAlloy SteelBars, Specificationfor(Applicationfor copiesshouldbe addresse
5、dtothe; SocietYfor TestingandMaterials,1916 Race Street,Philadelphia,Pa. .FSC 1395Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-3, REQUIREMENTS )I3.1 Melti .w Process.-Thesteel sbll be made by oneofthe followingprocesses:BasicOxygenProcessOpen Hear
6、thElectricFurnace3.1.1 DeoxidationPractice.-Alumim shallnot be used in the meltingteemingof this alloy for any purpose.3.2 ChemicalAnalysis.-Thechemistryshallbe uniformthrhmt theheat of steelas determinedby checkanalysis.3.3 ChemicalComposition.-Thealloy shallcomplywith the compositioncontainedin Ta
7、ble I.CarbonManganeseSiliconSulphurPhosphorusNickelchromiumMolybdenumCopperAluminumTABLE ILadleAnalysis1.OO -1.151.60 - 1.$XI0.70-1.00.040 max.).25 .20 max.a71O6 max.a7135 max.020 max.3.4 InternalSness.-The steelshallbe of sucha qualityas to meetthe macroetchrequirementsapplicableto SpecificationAsT
8、M-A274or ASTM-AjZ2.2, .)Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-S-50783(MU) 3.5 Dimensions.-The material shall conform to the nominal size specifiedin the contract or purchase order.3.5.1 Permissiblevariationsforthe applicableASTM specifi
9、cations.dimensions shallbe as specified in3.6 Workmanshi.-Thesteel shallbe on uniformqualityand conditionwithinthe limitsof goodmanufacturingand inspectionpractices;freefrompipe,deep seamsor cracks,excessiveporosity,segregationof non-metallicinclusions,and otherdefectswhichdue to theirnature,degree,
10、or Special Purpose for Ammunition Components *HAMEOF ORGANIZATION AND ADDRESS CONTRACT NUMBERMATERIAL PROCURED UNDER AODIREcT G0vERNMENTc0N7RAcT 0suBcoN7Rc1HAS ANY PART OF THE DOCUMENT CREATED PROBLEMSOR REOUIREO INTERPRETATIONIN PROCUREMENTUSE?A, GIVE PARAGRAPH NUM8ER AND wORDING.B. RECOMMENDATIONS
11、 FOR CORRECTING THE DEFICIENCIESCOMMENTSON ANYOOCUMENT REQuIREMENT CONSIDEREOTOO RIGIO(1. IS TI+E DOCUMENT RESTRICTIVE?O YES n No (lftYe.-*, Intiat Way?)REMARKSUBMITTED BY Prinfe dortype dnamean deddress-opflonaf) TELEPHONE NO.DATE-1)REPLACES EOITION OF 1 JAN 66 wHICH MAY 6E USED)Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
