1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI British StandardsWB9423_BSI_StandardColCov_noK_AW:BSI FRONT COVERS 5/9/08 12:55 Page 1AEROSPACE SERIESSpecification for forging stock of titanium-aluminium-molybdenum-tin-silicon alloy (Tensile stren
2、gtnullnull nullnullnullnullnull nullnullnull nullPanull (nullimiting ruling section onuller nullnullnull mm up to and including nullnullnull mmnullnullS nullTA nullnullnullnullnullnullnullBS 2TA 50:2009 BRITISH STANDARDPublisnulling and copyrignullt informationThe BSI copyright notice displayed in t
3、his document indicates nullhen the document nullas last issuednullnull BSI 2009ISBN 9nullnull 0 5null0 null5null59 nullInullS null9null025nullnull0The nullollonulling BSI renullerences relate to the nullornull on this standard: nullommittee renullerence Anullnullnullnullnull Dranullt nullor comment
4、09nullnull0null9null5null5 DnullPublication nullistorynullirst punulllished nullenullruary null9nullnullSecond nullpresentnull editionnull Nonullemnuller 2009Amendments issued since publicationnullate Tenullt affected BRITISH STANDARDnull BSI 2009 null iBS 2TA 50:2009Contentsnullorenullord iinull Sc
5、ope 1null Normatinulle renullerences 1null Technical renulluirements 1Binullliography 4nullist of tablesTanullle null null Technical renulluirements nullor titaniumnullaluminiumnullmolynulldenumnulltinnullsilicon nullorging stocnull 2Summary of pagesThis document comprises a nullront conullernull an
6、 inside nullront conullernull pages i to iinull pages null to nullnull an inside nullacnull conuller and a nullacnull conullernullBS 2TA 50:2009ii null null BSI 2009BRITISH STANDARDnullorenullordPublisnulling informationThis British Standard is punulllished nully BSI and came into enullnullect on nu
7、ll0 Nonullemnuller 2009null It nullas prepared nully nullanel Anullnullnullnullnullnullnullnullnull9null Titanium and its alloysnull under the authority onull Technical nullommittee Anullnullnullnullnullnull Metallic materials for aerospace purposesnull A list onull organinullations represented on t
8、his committee can nulle onulltained on renulluest to its secretarynullSupersessionThis British Standard supersedes BS TA 50:null9nullnullnull nullhich is nullithdranullnnullInformation about tnullis documentThis is a nullull renullision onull BS TA 50null and introduces the nullollonulling principal
9、 changes:anull renulluirements stated in tanullular nullormat in accordance nullith nullN null500nullnull and nullN null500nullnullnullnullnull chemical composition amended to add renulluirements nullor nullothernullelementsnullcnull melting method details deleted and replaced nully renullerence to
10、Section null onull BS TA null00nullnullanullard nullarningsnullARnullInullnullnull 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 suitanullilit
11、y and does not anullsolnulle the user nullrom legal onullligations relating to health and sanullety at any stagenullnullse of tnullis documentIt has nulleen assumed in the preparation onull this British Standard that the enullecution onull its pronullisions nullill nulle entrusted to appropriately n
12、ullualinulled and enullperienced peoplenull nullor nullhose 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 aunullil
13、iary nullernull is nullshallnullnullCommentary, explanation and general informative material is presented in smaller italic type, and does not constitute a normative element.Contractual and legal considerationsThis punulllication does not purport to include all the necessary pronullisions onull a co
14、ntractnull nullsers are responsinullle nullor its correct applicationnullnullompliance nullitnull a nullritisnull Standard cannot confer immunity from legal obligationsnullBRITISH STANDARDnull BSI 2009 null nullBS 2TA 50:2009null ScopeThis standard specinulles renulluirements nullor titaniumnullalum
15、iniumnullmolynulldenumnulltinnullsilicon alloy nullorging stocnull nullith a tensile strength onullnull 000 to null 200 nullnullanullnull nullormatinulle referencesThe nullollonulling renullerenced documents are indispensanullle nullor the application onull this documentnull nullor dated renullerenc
16、esnull only the edition cited appliesnull nullor undated renullerencesnull the latest edition onull the renullerenced document nullincluding any amendmentsnull appliesnullBS TA null00null Procedure for inspection, testing and acceptance of wrought titanium and titanium alloysnull Tecnullnical renull
17、uirementsnullaterial to this standard shall connullorm to Tanullle nullnullNnullTnull The format and symnullols used in Tanullle 1 are derived from nullN 4nullnullnullnull1 and nullN 4nullnullnullnull4.BS 2TA 50:20092 null null BSI 2009BRITISH STANDARDTanullle null Tecnullnical renulluirements for t
18、itanium-aluminium-molybdenum-tin-silicon forging stocknull nullaterial designation nullS TA nullnullnull Cnullemical composition nullnulllementAl nullo Sn Si nulle null2N2 H2 null2 null2null N2nullthersTinullach Totalnullinnull nullnull0 nullnull0 nullnull5 0nullnull null null null null null null nu
19、llBasenullanullnull 5null0 5null0 2null5 0nullnull 0null2 0null25 0null0null 0null0null2 5 0null2null 0nullnull 0nullnullnull nulletnullod of melting See Section null onull BS TA null00nullnullnull nullorm nullorging stocnull nullnullnullnullnull nulletnullod of production nullnullnullnull nullimit
20、dimension(snull mm null00 null a or D G null50null Tecnullnical specification Sections null and null onull BS TA null00 nullnullnull nullelinullery condition Asnullnullorgednull hot rolled or enulltruded 2null null centreless ground or machinednulleat treatment nullnullnullnull nullelinullery condit
21、ion code nullnull nullse condition Delinullery conditionnulleat treatment nullCnullaracteristicsnullnullnull Test sample(snull See Section null onull BS TA null00nullnullnull Test piece(snull See Section null onull BS TA null00nullnullnull nulleat treatment Renullerence nullsee line 29nullnull nulli
22、mensions concerned mm null00 null a or D G null50 nullnullnull2null5 mm thicnull slice prepared nully machining or nullorging nullnullnullnull Tnullickness of cladding on eacnull facenull nullnullnull nullirection of test piece null null or TnullnullTTemperature h nullnull Amnullient Amnullientnulln
23、ull Proof stress Rp0null2nullnulla H nullnull0 H 9null0nullnull Strengtnull Rmnullnulla null 000 G RmG null 200 null null00 G RmG null 2null0 nullnull Elongation A null H 9 H 9nullnull Reduction of areanull null H 20 H 20nullnull nullardness nullnullnull Snullear strengtnull Rcnullnulla nullnullnull
24、 nullending j null nullnullnull Impact strengtnull nullnullnullCTemperature h nullnull null00 nullnullnullnull Time h null00nullnull Stress ranullnulla nullnull5nullnull Elongation a null G 0nullnull0 nulltotal plastic strainnull nullnullnullnull Rupture stress rRnullnulla nullnullnull Elongation at
25、 ruptureA null nullnullnull nullotes nullsee line 9nullnullnullnullnull 2nullnull nullnullnull nullnullBRITISH STANDARDnull BSI 2009 null nullBS 2TA 50:2009Tanullle null Tecnullnical renulluirements for titanium-aluminium-molybdenum-tin-silicon forging stock nullcontinuednullnullnull Reference nulle
26、at treatment null Solution treated null precipitation treated:h null 900 nullnull null0 nullnull null t null null h per 25 mm nullH 20 minnull null Anull null h null 500 nullnull 5 nullnull null t null 2null h null Anullnullnull Enullternal defects null See Section null onull BS TA null00nullnull Su
27、rface contamination null See Section null onull BS TA null00nullnull nullarking null See Section null onull BS TA null00nullnull nullimensional inspection null See Section null onull BS TA null00nullnull nullotes nullnullnullBritish Standards conullering other nullorms onull material onull similar c
28、omposition are:Rm nullnullnullanull minnull null null00 null 050 null 050 null 050 null 000manullnull null 2null0 null 220 null 220 null 200 null 200nullimiting ruling section nulllrsnull nullmmnulllrs G 25 25 null lrs G null00 lrs G null00 lrs G null00 null00 null lrs G null50nullorm British Standa
29、rdBar and section nullor machiningBS TA null5 BS TA nullnull null null BS TA null9nullorging stocnull null null BS TA nullnull null nullnullorgings null null null BS TA nullnull BS TA 5null2null At the discretion onull the manunullacturer the material may nulle stress relienulled nullnull00 nullnull
30、 G h G null00 nullnull null t G null hnullnullnullnull At heat treatment stagenullnullnull nullhen specinulled on the dranullingnull order or inspection schedulenullBS 2TA 50:2009null null null BSI 2009BRITISH STANDARDnullibliograpnullyStandards publicationsnullor dated renullerencesnull only the ed
31、ition cited appliesnull nullor undated renullerencesnull the latest edition onull the renullerenced document nullincluding any amendmentsnull appliesnullBS TA null5null nullpecinullcation for nullar and section of titaniumnullaluminiumnullmolynulldenumnulltinnullsilicon alloy nullTensile strength 1
32、1nullnullnull1 2nullnull MPanullnullnullimiting ruling section 2null mmnull BS TA nullnullnull nullpecinullcation for nullar and section for machining of titaniumnullaluminiumnullmolynulldenumnulltinnullsilicon alloy nullTensile strength 1 nullnullnullnull1 22null MPanull nullnullimiting ruling sect
33、ion over 2null mm up to and including 1nullnull mmnullBS TA nullnullnull nullpecinullcation for forging stocnull of titaniumnullaluminiumnullmolynulldenumnulltinnullsilicon alloy nullTensile strength 1 nullnullnullnull1 22null MPanullnullnullimiting ruling section 1nullnull mmnullBS TA nullnullnull
34、nullpecinullcation of titaniumnullaluminiumnullmolynulldenumnulltinnullsilicon alloy nullTensile strength 1 nullnullnullnull1 22null MPanull nullnullimiting ruling section 1nullnull mmnullBS TA null9null nullpecinullcation for nullar and section for machining of titaniumnullaluminiumnullmolynulldenu
35、mnulltinnullsilicon alloy nullTensile strength 1 nullnullnullnull1 2nullnullMPanull nullnullimiting ruling section over 1nullnull mm up to and including 1nullnull mmnullBS TA 5nullnull nullpecinullcation for forgings of titaniumnullaluminiumnullmolynulldenumnulltinnullsilicon alloy nullTensile stren
36、gth 1 nullnullnullnull1 2nullnull MPanullnullnullimiting ruling section over 1nullnull mm up to and including 1nullnull mmnullnullN null500nullnullnull Metallic materials null nullules for the drafting and presentation of material standards null Part 1null nulleneral rules nullnullnullN null500nulln
37、ullnull Metallic materials null nullules for the drafting and presentation of material standards null Part 4null nullpecinullc rules for titanium and titanium alloys nullnullnullnullnullunulllished as ASDnullSTAN nullrestandard at the date onull punulllication onullthis standardnullThis page deliber
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