Is-00305_aluminium Bronze Ingots & Casting

7/30/2019 Is-00305_aluminium Bronze Ingots & Casting

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IS : 3Q5 - 1981hdian Standard

(Second Revision)

UDC 669*35*71-412-14

1N:DIAN STANDARDS LNSTITUTIONjM@$AIC BHAVAN, .? BAHADUR SHAH ZAEAR MAR CNEW rlT?.T.FTT llfxm


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IS:305 - 1981Indian Standard

SPECIFICATION FORALUMINIUM BRONZE INGOTS AND CASTINGS

( Second Revision )Copper and Copper Alloys Sectional Committee, SMDC 11

Chairman RepresentingDR L. R. VAIDYANATH Indian Copper Information Centre, Calcutta

MembersSHRI DE V KUXAI I . AGGARWAL Bralco Metal Industries Pvt Ltd, BombaySHRI V. R. GADRE ( Alternate )SHRI S. N. B A F N A

SHRI N. M. B A F N A ( Alternate ) Coventary Metals Rajasthan Pvt Ltd, JodhpurSHRI J. NAGESR BHATT Indian Telephone Industries Ltd, Bangalore

SHRI A. DWA KEANA TH ( Al ternate )SHRI V. N. BHIDE Directorate General of Ordnance Factories,CalcuttaSmr S. K. MOHANTY ( Alternotc )SHRI S. N. CHANDA Beng al Ingot Co Ltd, CalcuttaS H X I S. K . D A S Ministry of Defence ( DGI )/DPI ( N )SHRI S. C. P A U L ( Alternate )SHRI P. GHOBH Indian Cable Co, Jamshedpur

SHR I Trzr~m SINGI~ ( Alternate )SHRI A. K. GUHA Direc;p;;:c General of Supplies & Disposals, NewSHRI A. V. H A R N E BharateHeavy Electricals Ltd, Secunderabad

SHRI T . MUE~HBRJEE (Alternate I )SHRI K. N. WADHWA ( Alternate II )SRRI D. P. JAIN Saru Sme lting Pvt Ltd, Meerut

SHRI D . N . CHAKRABOETY (Alternate)San1 S. L. JAIN Alcobex Metals ( P ) Ltd, MeerutS R R I S . R A M A X R I S E N A N ( Alternate )

SHRI F . A . A . JASDANWALLA Indian Standard Metal Co Ltd, BombaySHRI C. CHATTERJE E ( Alternate )S m u S . K . K H A N D E K A R Vanaz Engineers ( P ) Ltd, Pune

SRRI A . S . STJRYANARAIN ( Alternate )( Continued on page 2 :

0 Copyrighf 1981INDIAN STAN DARD S INSTITUTION

This publication is protected under the Indian Copyright Act (XIV of 1957) andreproduction in whole or in part by any means except with written permission of thepu-kher shall be deemed to be an infringement of copyright under the said Act.-


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IS : 305 - 1981( Continuedfrom page 1 )

Menhers RepresentingMinistry of Steel & Mines, New Delhi; nudHindustan Copper Ltd, GhatsilaDa S. K. Brswas ( Alter&e )

SHRI LASAJlAX MISHI~:L- -

Directorate General of Technical Developm ent,New DelhiSHRI T. R. MORAN RAO ( Alternate )

&RI R. M. bblRY Ministry of FinanceSHRI A. K. blITRA Nation al Pipes & Tubes Co Ltd, CalcuttaSFLIZI S. V. N A D K A R N I Advani Oerlikon Ltd, Bombay

&IRI S. K. SENG UPTA ( Ahrt~ate )SHRI A. T. PA L Ministry of Defence ( R & D )

SHRI I. N. BHAT IA (rlltemale)SIULI H. S. PARGIII Kaman i Metals and Alloys Ltd, BombaySrrnr A. H. SABH ACHA NDAN I (Alternate)DR E.G.RA~IACHANDRAN Indian Institute of Technology, MadrasSHRI P. S. RA~IASWAMY Bhandary Metallurgical Corporation Pvt Ltd,SRRI M. K. R-40 BombayIndian Non-Ferrous Metals ManufacturersAssociation. Calcutta: and The Binani MetalWorks Ltd,*C alcu tta SERI B. NAGCHAUDIIURI (Alternate)REPR ESEN TATIV E Institution of Engineers ( India ), Calcutta; arzdKhetri Copper Complex, JodhpurSERI S. K. ROY Ministry of Defence ( DGI )SHHI P. K. L. P. NIXANKAR ( Alternate)SHRI D.K. SEHG AL Leader Engin eering Works, Jullundur

S H R I V. K. CHOUDHURY (Alternate )SENIORCHE~ IIST & METALLU RGIST, Ministry of RailwaysCENTRAL RAILWAY, BO&ZDAYDEPU TY DIRECTOR (MET)-II,RDSO, Lucxxow ( Alterna6e )SHRI S.C. SIVAR A~ILKR ISHNA N Nation al Metallurg ical Laboratory ( CSIR),

SHRIN.S.SURANA Mu%~%?% CalcuttaSnnr S.S. VAIDYANATUAN J. B. Metal Induitr ies Pvt Ltd, BombaySIIRI C. R. RAM A RAO, Director General, ISI ( Ex-oficio Member)Director ( Strut & Met )

SecretarySRRI O.N.DASGUPTADeputy Director ( Met ), IS1


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Indian StandardSPECIFICATION FOR

ALUMINIUM BRONZE INGOTS AND( Second Revision )

0. FOREWORD

IS:305 - 1981

CASTINGS

0.1 This Indian Standard ( Second Revision ) was adopted by the IndianStandards Institution on 24 April 1981, after the draft finalized by theCopper and Copper Alloys Sectional Committee had been approved abythe Structural and Metals Division Council.0.2 Copper-aluminium alloys ( aluminium bronzes ) are preferable tocopper because of their excellent resistance to corrosion and oxidation,wear by sea water and their superior mechanical properties at room andelevated temperatures. These alloys find extensive use in pump castings,fluid control valves, deck and underwater fittings, propellers, gear blanks,deep drawing dies, non-sparking tools, pickling equipment, worm-wheels,etc.0.3 This standard was first published in 1952 and revised in 1961.In this revision Grade 3 has been deleted and Grades 1 and 2 redesig-nated as AB2 and ABl, respectively. Slight modifications have beenmade in the composition for Grade 1 particularly with regard to alloyingelements contents specified earlier. Besides, elongation values for thegrades have been revised.0.4 For the purpose of deciding whether a particular requirement of thisstandard is complied with, the final value, observed or calculated,expressing the result of a test or analysis, shall be rounded off inaccordance with IS : 2-1960. The number of significant pIaces retainedin the rounded off value should be the same as that of the specified valuein this standard.

1. SCOPE1.1 This standard covers the requirements for two grades of aluminiumbronze ingots and castings.

*Rule s for round ing off nume rical values ( revised).3


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IS :305 - 19812. SUPPLY OF MATERIAL2.1 The general requirements relating to supply of material are laiddown in IS : 1387-1967.3. CHEMICAL COMPOSITION3.1 The material when analyzed in accordance with IS : 4027-1967tshall have the chemical composltion as given in Table 1.

TABLE 1 CHEMICAL COMPOSITIONPERCENT

r - . - - - - h - . - - - - - ~Grade An 1 Grade AB 2

AluminiumIronh4anganese, a40.Y

NickelZinc, A/lax

*Tin, M UX*Lead, M ax*Silicon, 114a.Y*Magnesium, I\4cis

Total of Sn, Pb, Si and Mg,copper

M U

8.5 to 10.5 8.8 to 10-oI-5 to 3.5 4.0 to 5.5

1.0 1.51.0 h4ax 4.0 to 5.50.50 o-500.10 0.10.05 0.050.25 0.100.05 0.050.30 0.30

Remainder Remainder*The chemica l analysis for these elemen ts is not required if the supplier undertakesand certifirs that tlrc mate rial does not contain these clctncnts in cxccss of the limit s

stated.

4. MECHANICAL PROPERTIES4.1 The material, when tested in accordance with IS : 2654-19642, sha llhave the mechanical properties as given in Table 2.

4.1.1 Should a tensile test piece break outside the middle third of its~~gc length and the elongation percentage obtained is lower than thei)minimum specified, the test may at the option of the manufacturer bediscarded and another test performed.*Genera l requirements for the supply of metal lurgic al materials (Jirst revisiott).$Methods of chemica l analysis of bronzes.ZMcthod for tensile testing of copper and copper alloys,

4


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IS : 305 - 1981

TABLE 2 MECHANICAL PROPERTIES( Clause 4.1 )

MODE OF CASTIXQTEST PIECESPROIERTY REQUIRE~IENT FORr-wM--h---

Grade AR 1 Grade AB 2r Tensile strength, MPa ,J MinI *0.2 percent, proof< stress, MP a, MinI Elongation percent on

gauge length of1 565+fsO, Mi n

500 640

17D 25 0

18 I3

Sand cast( separately cast )

Tens!;e Strength, MPa, 540 65 0

$Chill cast 0.2 percent proof stress, 200 25 0Ji MPa, Min1 El;;;;;ion pexr;tyt on 18 13of1 5.65 UsMin

NOTE - 1MP a = 0.102 kgf/mms.*For informa tion only and not a requirement.tChil1 cast test specimen is applicab le for ingots when they are required for chillcasting purposes.

5. PRESSURE TEST5.1 If the purchaser requires castings to be tested for pressure tightness,this shall be stated in the enquiry and order. The number of tests, thenature of the test, the test pressure and the testing fluid shall be subjectto the agreement between the manufacturer and the purchaser.6. FREEDOM FRQM DEFECTS6.1 Ingots - The ingots shall be of uniform quality and reasonably freefrom slag, dross and other harmful contaminations.6.2 Castings - The castings shall be free from harmful inclusions andcracks. Defects shall be repaired only if agreed to between the purchaserand the supplier. Any casting may be subsequently rejected for faults inmanufacture revealed by machining operation notwithstanding that ithas passed previously for chemical and mechanical properties.


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IS:305- 19817. SIZE AND SHAPE7.1 The ingots shall be of 10 -& 1 kg in weight unless otherwise agreed tobetween the supplier and the purchaser.7.2 The dimensions of the castings shall be in accordance with thedrawing. Al l surfaces marked for machining shall have sufficientallowance for that purpose but shall not be too excessive resulting inmore machining and in unnecessary increase in the weight of the casting.For surfaces which are not to be machined and unless otherwise specifiedin the contract, the sectional thickness shall not exceed by more than5 percent of the specified thickness, or by 2 mm, whichever is more.8. MARKING8.1 The name, initia ls or trade-mark of the manufacturer and the castnumber and grade of the material shall be cast or otherwise legiblymarked by stamping on each ingot or casting, by which the manufac-turer and the grade of the material may be identified. In case of smallcastings where it is difficult to cast on or stamp all the details, themarking shall be shown in the drawings or as agreed to between thesupplier and the purchaser.8.2 The material may also be marked with the ISI Certification Mark.

NOTE- The use of the IS1 Certification Mark is governed by the provisions ofthe Indian Standards Institution ( Certification Marks) Act, and the Rules andRegulations made thereunder. The ISI Mark on products covered by an IndianStand ard conveys the assurance that they have been produced to comply with therequirements of that standard under a well-defined system of inspection, testing andquality control which is devised and supervised by IS1 and operated by the producer.IS1 marked products are also continuous ly checked by IS1 for conformity to TNstandard as a further safeguard. Detail s of conditio ns under which a liccnce fov/use of the ISI Certifica tion Mark may be granted to manufacturers or processors,may be obtained from the Indian Standards Institution.9. SAMPLING AND CRITERIA FOR CONFORMITY9.1 Lot - In any consignment, ingots/castings of the same grade( seeTable 1 ) manufactured at the same place shall be grouped togetherto constitute a lot.9.2 Sampling for Chemical Ana lysis - One sample shall he takenand analysed from each cast of 1000 kg or part thereof of the ingots/castings. However, in case more frequent chemical analysis is required,the same shall be agreed to between the supplier and the purchaser. Thesample for chemical analysis shall be taken by drilling or sawing insuch a manner as to be representative of the entire cross-section.


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KS:305 -1981Dril lings and sawings from ingots/castings shall be obtained in accor-dance with the appropriate procedure specified in IS : 1817-1961.9.3 Sampling for Mechanical Properties - Three test bars shal l beseparately cast along with the castings for tensile strength for every1 000 kg or part thereof of the casting. These test bars shall be cast toshape in accordance with 4.3.1 and Appendix B of IS : 1408-1968t.These test bars shall be of suitable size for turning them to the standarddimensions of the test piece as laid down in IS : 2654-1964:.9.4 Re-test

9.4.1 If the sample drawn for chemical analysis fails to meet therequirements stipulated in the standard, 2 more tests shall be conductedon the same sample in order to confirm that the analysis has been doneproperly. If both the test results satisfy the relevant requirements, thelot shall be accepted; and if either of the re-test fails, the lot representedshal l be deemed as not complying with. the standard.

9.4.2 Should a test piece fail to meet the requirements of the tensiletest requirements specified in the standard, two further test pieces whichrepresent the same cast may be tested in the same manner. Should oneof the further test pieces meet the requirements of the tensile test, theingots or castings represented thereby shal l be deemed to comply withthe standard otherwise the lot shall be rejected.10. INFORMATION TO BE GIVEN BY THE PURCHASER10.1 This standard contains a number of clauses in which the purchaseris allowed to exerc ise an option. The lis t of information to be given bythe purchaser in respect to these clauses is given in Appendix A.

APPENDIX A( Clause 10.1)

INFORMATION TO BE GIVEN BY THE PURCHASERA-l. Whether the purchaser wishes to inspect the material at thesupplier works ( see2 and IS : 1387- 19679 ).

*Methods for sampling non-ferrous metals for chemical analysis.iReco mme nded procedure for inspection of copper-base alloy sand castings (J;rsfreoisio tl ) .SMetho d for tensile testing of copper and copper alloys.$General requirements for the supply of metallurgical materials (jirst revision ),


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IS : 305 - 1981A-2. The alloy grade required.A-3. Whether information is required covering the works analysis.A-4, Detailed drawings of castings.A-5. In the case of in.gots, whether purchaser prefers any special size,shape and mass of the mgots.A-6. Preparation of test piece for tensile testing.A-7. Whether a pressure test is required. Details are subject to agree-ment with the supplier.A-8. Marking details.


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INfERNATIOMAL SYSTEM, 0F;iTNITS ( SI::uNlTS ).Base Units

QuANTIT,~ UNIT S Y X B O LLength metreMS.9 kilogram k;Time secorid !IElect& cm-rim ampereThertiodynamic kelvid!emperaturelLuminous i&,nsity harid$ li 6;Ani6~ti~~of substance .r;io$ mol,; ,.:, . . 1. -: )!Sqiplkmeniaiy Unitd

: QcJ iN& , , . UNIT SY;UBOii. ,Planeangle radia;i radSolid angle steradian ?r ,Derived Units

QUANTITY -UNIT S 5& 30LF&a/,: . newton .:.,lr;r:;: @Fg$i, joule \~~J-.$Power wait :), w :Fldx ,:,: weber .WbFlti%,$&sity tesla- : T, -,:F#.t i&ncy hertz t Hz,El&tr?cconductance siemenS: &: :El&tro& oti?e for& volt ,-,i .:.v, ,.1Press&, s&s. , Pascal j_ Pi2. ,lND1A.N ,eTAND+?DS INSTI fUT16r i l~

NEW DELHI 110002

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Is-00305_aluminium Bronze Ingots & Casting

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