1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationAEROSPACE SERIESSpecification for high expansion heat-resisting steel billets, bars, forgings and parts (Ni 2nullnullnull, Cr nullnull, nulli 2, nulln nullnullnull, nullo nullnul
2、l2null, Si nullnullnull, null nullnullnullnull(Solnulltion treated at nullnullnull nullCnullnullS 2nullR nullnullnull2nullnullnullBS 2HR 51:2010 BRITISH STANDARDPnullblishing and copnullright infornullationThe BSI copyright notice displayed in this document indicates nullhen the document nullas last
3、 issuednullnull BSI 2010ISBN nullnullnull 0 5null0 nullnullnullnullnull 5InullS nullnullnull025null10The nullollonulling BSI renullerences relate to the nullornull on this standard: nullommittee renullerence Anullnullnullnull1 Dranullt nullor comment 0nullnullnull0201nullnullnull DnullPnullblication
4、 histornullnullirst punulllished Septemnuller 1nullnullnullSecond nullpresentnull editionnull nullanuary 2010Anullendnullents issnulled since pnullblicationnullate nullext affected BRITISH STANDARDnull BSI 2010 null iBS 2HR 51:2010Contentsnullorenullord iinull Scope 12 Normatinulle renullerences 1nu
5、ll Technical renulluirements 1Binullliography 8nullist of tablesTanullle 1 null Technical renulluirements nullor nicnullelnullchromiumnulltitaniumnullmanganesenullmolynulldenumnullsiliconnullnullanadium heatnullresisting steel nullars nullor machining 2Tanullle 2 null Technical renulluirements nullo
6、r nicnullelnullchromiumnulltitaniumnullmanganesenullmolynulldenumnullsiliconnullnullanadium heatnullresisting steel nullillets and nullars nullor nullorging 4Tanullle null null Technical renulluirements nullor nicnullelnullchromiumnulltitaniumnullmanganesenullmolynulldenumnullsiliconnullnullanadium
7、heatnullresisting steel nullorgings 6Snullnullnullarnull of pagesThis document comprises a nullront conullernull an inside nullront conullernull pages i to iinull pages 1 to nullnull an inside nullacnull conuller and a nullacnull conullernullBS 2HR 51:2010ii null null BSI 2010BRITISH STANDARDnullore
8、nullordPnullblishing infornullationThis British Standard is punulllished nully BSI and came into enullnullect on null1 nullanuary 200nullnull It nullas prepared nully nullanel Anullnullnullnull1nullnullnullnullnullnull Heat resisting alloysnull under the authority onull Technical nullommittee Anulln
9、ullnullnull1null Metallic materials for aerospace purposesnull A list onull organinullations represented on this committee can nulle onulltained on renulluest to its secretarynullSnullpersessionThis standard supersedes BS HR 51:1nullnullnullnull nullhich is nullithdranullnnullInfornullation abonullt
10、 this docnullnullentThis is a nullull renullision onull BS HR 51null and introduces the nullollonulling principal changesnullanull nullhange in titlenullnullnull Renulluirements are stated in tanullular nullormat in accordance nullith nullN null500null1 and nullN null500nullnullnullnullanullard null
11、arningsnullARNINnullnull This British Standard calls nullor the use onull sunullstances andnullor procedures that can nulle innullurious to health inull adenulluate precautions are not tanullennull It renullers only to technical suitanullility and does not anullsolnulle the user nullrom legal onulll
12、igations relating to health and sanullety at any stagenullnullse of this docnullnullentIt has nulleen assumed in the preparation onull this British Standard that the enullecution onull its pronullisions nullill nulle entrusted to appropriately nullualinulled and enullperienced peoplenull nullor null
13、hose use it has nulleen producednullPresentational connullentionsThe pronullisions onull this standard are presented in roman nullinullenull uprightnulltypenull Its renulluirements are enullpressed in sentences in nullhich the principal aunulliliary nullernull is nullshallnullnullCommentary, explana
14、tion and general informative material is presented in smaller italic type, and does not constitute a normative element.Contractnullal and legal considerationsThis punulllication does not purport to include all the necessary pronullisions onull a contractnull nullsers are responsinullle nullor its co
15、rrect applicationnullConullpliance nullith a nullritish Standard cannot confer inullnullnullnitnull fronulllegal obligationsnullBRITISH STANDARDnull BSI 2010 null 1BS 2HR 51:2010null ScopeThis British Standard specinulles renulluirements nullor nicnullelnullchromiumnulltitaniumnullmanganesenullmolyn
16、ulldenumnullsiliconnullnullanadium heatnullresisting steel supplied in the nullollonulling nullormsnull and as partsnullanull Bars nullor machining: solution treated and precipitation treatednulldesignation HR 51Anullnullnull Billets and nullars nullor nullorging: hot or cold nullornulled and sunull
17、senulluently machined or groundnull designation HR 51Bnullcnull nullorgings: solution treated and precipitation treatednull designation HR 51nullnull2 Nornullatinulle referencesThe nullollonulling renullerenced documents are indispensanullle nullor the application onull this documentnull nullor date
18、d renullerencesnull only the edition cited appliesnull nullor undated renullerencesnull the latest edition onull the renullerenced document nullincluding any amendmentsnull appliesnullBS HR 100null Procedure for inspection, testing and acceptance of wrougnullt nulleatnullresisting alloysnull nullech
19、nical renullnullirenullentsnullnullnull nullaterial to this standard shall connullorm to Tanullle 1null Tanullle 2 and Tanullle nullnullnullnullnullnull nullnulle format and symnullols used in nullanullle 1, nullanullle 2 and nullanullle null are derived from nullnull 4nullnullnullnull1 and nullnull
20、 4nullnullnullnullnull.nullnull2 nullarts nullnally heatnulltreated anullter machining shall connullorm to Section null and Section null onull BS HR 100nullnullnullnull nullarts shall nulle supplied in the solution treated and precipitation treated conditionnullBS 2HR 51:20102 null null BSI 2010BRIT
21、ISH STANDARDTanullle 1 nullechnical renullnullirenullents for nicnullel-chronullinullnull-titaninullnull-nullanganese-nullolnullbdennullnull-silicon-nullanadinullnullheat-resisting steel bars for nullachiningnull nullaterial designation nullS nullR nullnull2 Chenullical conullposition nullnulllement
22、 null Si nulln null S Al B nullinnull null null null null null null 0null00null 0nullanullnull 0null0null 1null0 2null0 0null020 0null015 0nullnull5 0null010nulllement nullr nullo Ni nullnull Ti null nullenullinnull 1nullnull5 1null0 2nullnull0 null 1nullnull 0null10Basenullanullnull 1nullnull0 1nul
23、l5 2nullnull0 50 ppm 2nullnull 0null50null nullethod of nullelting Air meltednull nullacuum meltednull air melted and nullacuum renullnednull consumanullle electrode remeltednullnullnull nullornull Bars nullor machining nullHR 51Anullnullnull2 nullethod of prodnullction nullnullnullnull nullinullit
24、dinullension(snull mm nullnull nullechnical specification Sections 1 and 2 onull BS HR 100nullnullnull nullelinullernull condition Solution treated null precipitation treatednulleat treatnullent null nullnullnull0 10null nullnull null t H 1 h null nullnull or nullnull null null nullnull20 10null nul
25、lnull null t H 1null h null Anullnullnull2 nullelinullernull condition code nullnull nullse condition Delinullery conditionnulleat treatnullent nullCharacteristicsnullnullnull nullest sanullple(snull See Section 2 onull BS HR 100nullnull2 nullest piece(snull See Section 2 onull BS HR 100nullnullnull
26、 nulleat treatnullent nullse conditionnull nullinullensions concerned mm nullnullnull nullhicnullness of cladding on each facenull nullnullnull nullirection of test piece nullnull2nullnullenullperatnullre nullnull Amnullientnullnull Proof stress Rp0null2nullnulla H 5null0 nullnull Strength Rmnullnul
27、la H null00nullnull Elongation A null H 1nullnullnull Rednullction of areanull null H 20nullnull nullardness 2nullnull G HBnull G nullnull1 or 2null0 G Hnull G nullnull0nullnull Shear strength Rcnullnulla nullnullnull nullending j null null2null Inullpact strength null2nullCnullenullperatnullre null
28、null null50 1null22 nullinulle h tRH 2null 1null2null Stress ranullnulla null2null Elongation a null null2null Rnullptnullre stress rRnullnulla nullnull0 1null2null Elongation at rnullptnullreA null H nullnull5 1nullnull 2null2null Notes nullsee line nullnullnull1nullnull 2nullBRITISH STANDARDnull B
29、SI 2010 null nullBS 2HR 51:2010Tanullle 1 nullechnical renullnullirenullents for nicnullel-chronullinullnull-titaninullnull-nullanganese-nullolnullbdennullnull-silicon-nullanadinullnullheat-resisting steel bars for nullachining nullcontinuednullnullnull nullrain sinulle null See Section 1 onull BS H
30、R 1002 nullne per nullatchnull Transnullerse samplenull nullne end onull nullarnull5 nullse conditionnulla or D nullmmnull Anullerage grain sinulle nullmmnullG 100 G 0null12nullnull 100 G 0null25nullnullnull External defects null See Section 2 onull BS HR 100nullnull nullacrostrnullctnullre null See
31、 Section 2 onull BS HR 100nullnull Internal defects null See Section 2 onull BS HR 100nullnull nullarnulling null See Section 2 onull BS HR 100nullnull nullinullensional inspection null See Section 2 onull BS HR 100nullnull Notes null1nullThe test shall nulle carried out on a comnullined notched and
32、 unnotched test piece or on separate notched and unnotched test piecesnull Inull a comnullined test piece is usednull rupture shall occur in the unnotched portionnull Inull separate test pieces are usednull the time to rupture onull the notched test piece shall enullceed that onull the unnotched tes
33、t piecenull2nullnullhere rupture occurs in more than nullnull hnull A shall nulle H 2null5nullnullBS 2HR 51:2010null null null BSI 2010BRITISH STANDARDTanullle 2 nullechnical renullnullirenullents for nicnullel-chronullinullnull-titaninullnull-nullanganese-nullolnullbdennullnull-silicon-nullanadinul
34、lnullheat-resisting steel billets and bars for forgingnull nullaterial designation nullS nullR nullnull2 Chenullical conullposition nullnulllement null Si nulln null S Al B nullinnull null null null null null null 0null00null 0nullanullnull 0null0null 1null0 2null0 0null020 0null015 0nullnull5 0null
35、010nulllement nullr nullo Ni nullnull Ti null nullenullinnull 1nullnull5 1null0 2nullnull0 null 1nullnull 0null10Basenullanullnull 1nullnull0 1null5 2nullnull0 50 ppm 2nullnull 0null50null nullethod of nullelting Air meltednull nullacuum meltednull air melted and nullacuum renullnednull consumanulll
36、e electrode remeltednullnullnull nullornull Billets and nullars nullor nullorging nullHR 51Bnullnullnull2 nullethod of prodnullction nullnullnullnull nullinullit dinullension(snull mm nullnull nullechnical specification Sections 1 and null onull BS HR 100nullnullnull nullelinullernull condition Hot
37、or cold nullornulled and sunullsenulluently machined or ground 1nullnulleat treatnullent nullnullnull2 nullelinullernull condition code nullnull nullse condition Delinullery conditionnulleat treatnullent nullCharacteristicsnullnullnull nullest sanullple(snull See Section null onull BS HR 100nullnull
38、2 nullest piece(snull See Section null onull BS HR 100nullnullnull nulleat treatnullent Delinullery condition Renullerence nullsee line 2nullnullnull nullinullensions concerned mm nullnullnull nullhicnullness of cladding on each facenull nullnullnull nullirection of test piece null nullnull2nullnull
39、enullperatnullre nullnull null Amnullientnullnull Proof stress Rp0null2nullnulla null H 5null0 nullnull Strength Rmnullnulla null H null00nullnull Elongation A null null H 1nullnullnull Rednullction of areanull null null H 20nullnull nullardness null 2nullnull G HBnull G nullnull1 or 2null0 G Hnull
40、G nullnull0nullnull Shear strength Rcnullnulla nullnullnull nullending j null null2null Inullpact strength null2nullCnullenullperatnullre nullnull null null50 2null22 nullinulle h null tRH 2null 2null2null Stress ranullnulla null2null Elongation a null null2null Rnullptnullre stress rRnullnulla null
41、 nullnull0 2null2null Elongation at rnullptnullreA null null H nullnull5 2nullnull nullnull2null Notes nullsee line nullnullnull1nullnull 2nullnull nullnullBRITISH STANDARDnull BSI 2010 null 5BS 2HR 51:2010Tanullle 2 nullechnical renullnullirenullents for nicnullel-chronullinullnull-titaninullnull-n
42、ullanganese-nullolnullbdennullnull-silicon-nullanadinullnullheat-resisting steel billets and bars for forging nullcontinuednull2null Reference heat treatnullent null Solution treated null precipitation treated null nullnullnull0 10null nullnull null t H 1 h null nullnull or nullnull null null nullnu
43、ll20 10null nullnull null t H 1null h null Anullnullnull External defects null See Section null onull BS HR 100nullnull nullacrostrnullctnullre null See Section null onull BS HR 100nullnull Internal defects null See Section null onull BS HR 100nullnull nullarnulling null See Section null onull BS HR
44、 100nullnull nullinullensional inspection null See Section null onull BS HR 100nullnull Notes null1null nullaterial onull other than round section may nulle supplied in the descaled conditionnull2nullThe test shall nulle carried out on a comnullined notched and unnotched test piece or on separate no
45、tched and unnotched test piecesnull Inull a comnullined test piece is usednull rupture shall occur in the unnotched portionnull Inull separate test pieces are usednull the time to rupture onull the notched test piece shall enullceed that onull the unnotched test piecenullnullnullnullhere rupture occ
46、urs in more than nullnull hnull A shall nulle H 2null5nullnullBS 2HR 51:2010null null null BSI 2010BRITISH STANDARDTanullle null nullechnical renullnullirenullents for nicnullel-chronullinullnull-titaninullnull-nullanganese-nullolnullbdennullnull-silicon-nullanadinullnullheat-resisting steel forging
47、snull nullaterial designation nullS nullR nullnull2 Chenullical conullposition nullnulllement null Si nulln null S Al B nullinnull null null null null null null 0null00null 0nullanullnull 0null0null 1null0 2null0 0null020 0null015 0nullnull5 0null010nulllement nullr nullo Ni nullnull Ti null nullenu
48、llinnull 1nullnull5 1null0 2nullnull0 null 1nullnull 0null10Basenullanullnull 1nullnull0 1null5 2nullnull0 50 ppm 2nullnull 0null50null nullethod of nullelting Air meltednull nullacuum meltednull air melted and nullacuum renullnednull consumanullle electrode remeltednullnullnull nullornull nullorgin
49、gs nullHR 51nullnullnullnull2 nullethod of prodnullction nullorged nullrom HR 51B stocnullnullnullnull nullinullit dinullension(snull mm nullnull nullechnical specification Sections 1 and null onull BS HR 100nullnullnull nullelinullernull condition Solution treated null precipitation treatednulleat treatnullent null nullnullnull0 10null nullnull null t H 1 h null nullnull or nullnull null null nullnull20 10null nullnull null t H 1null h null Anullnullnull2 nullelinullernull condition code nullnull nullse condition Delinullery conditionnulleat treatnullent nullCharacte
