INTERNATIONAL STANDARD INTERNATIONAL ORGANIZATION FOR STANDARDIZATION ORGANISATION INTERNATIONALE DE NORMALISATION MEX/JYHAPOAHAR OPTAHM3AL(MR n0 CTAHAAPTI43A~kfkl Seamless wrought copper and copper a[.]
I S0 I N TERN ATI ON AL 635- STAN DARD Fi rst edi ti on 987-06- 01 I N TERN ATI ON AL ORGAN I ZATI ON ORGAN I SATI ON I N TERN ATI ON ALE MEX/J YH APOAH AR Seaml ess Part wrought and DE OPTAH M3 AL( MR n0 copper al l oy N ORMALI SATI ON CTAHAAPTI 43A~ kfkl tube - : Techni cal condi ti ons heat-exchanger Tu bes copper FOR STAN DARDI ZATI ON sans soudure Pat-ti e : Condi ti ons of del i very for condenser and tubes en cui vre techni ques et en al l i ages de l i vrai son de cu i vre des tubes corroyks pour - condenseurs et Bchangeu rs thermi ques Reference nu mber I S0 I n tern ati o n al Org an i z ati o n fo r S tan d ard i z ati o n 635-2 : 987 ( E) Foreword IS0 (the International Organization for Standardization) is a worldwide federation of national standards bodies (IS0 member bodies) The work of preparing International Standards is normally carried out through IS0 technical committees Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work Draft International Standards adopted by the technical committees are circulated to the member bodies for approval before their acceptance as International Standards by the IS0 Council They are approved in accordance with IS0 procedures requiring at least 75 % approval by the member bodies voting International Standard IS0 635-2 was prepared by Technical Committee ISO/TC 26, Copper and copper alloys Users should note that all International Standards undergo revision from time to time and that any reference made herein to any other International Standard implies its latest edition, unless otherwise stated International Organization for Standardization, Printed in Switzerland I n tern ati o n al Org an i z ati o n fo r S tan d ard i z ati o n 987 IS0 635-2: 967 (E) INTERNATIONAL STANDARD Seamless wrought copper and copper alloy tube Part : Technical conditions of delivery for condenser and heat-exchanger tubes Scope and field of application This part of IS0 635 specifies the technical conditions of delivery of seamless wrought copper and copper alloy tube for condenser and heat-exchanger applications, currently available in commercial quantities For the purpose of this part of IS0 635, the definitions for copper and copper alloys in IS0 97-I and for tube in IS0 97-3 as well as the principles for designation in IS0 1 90-I and IS0 1 90-2 apply For technical conditions of delivery for seamless tubes - for water, gas and sanitation, see IS0 635-I;‘) - for general purposes, see IS0 635-3.2) References 2.1 Definitions IS0 97, Copper and copper alloys - Part I : Materials - Part : Wrought products Terms and definitions 2.2 Designations IS0 1 90, Copper and copper alloys - Code of designation - Part : Designation of materials - Part : Designation of tempers 2.3 Chemical composition IS0 426, Wrought copper-zinc alloys - Chemical composition and forms of wrought products - Part I : Non-leaded and special copper-zinc alloys - Part : Leaded copper-zinc alloys IS0 429, Wrought copper-nickel alloys - Chemical composition and forms of wrought products IS0 337, Wrought coppers (having minimum copper content of 9995 %I - Chemical composition and forms of wrought products 2.4 Technical conditions of delivery IS0 635, Seamless wrought copper and copper alloy tubes - Part I : Technical conditions of delivery for tubes for water, gas and sanitation 3, - Part : Technical conditions of delivery for tubes for general purposes 3, 2.5 Methods of test 2.5.1 Sampling IS0 4799, Wrought copper and copper alloy products - Selection and preparation of specimens and test pieces for mechanical testing 2.5.2 Tensile testing IS0 6692, Metallic materials - Tensile testing 2.5.3 Hardness testing I SO 6567, Metallic materials - Part : HV to HV IS0 6506, Metallic materials (scales A - B - C - D - - Hardness tests - Vickers test 00 - Hardness test - Rockwell test E - F - G - H - K) 2.5.4 Technological testing IS0 96, Wrought copper and copper alloys - Detection of residual stresses - Mercury(lJ nitrate test I) At present at the stage of draft (Revision of IS0 274 : 975.) 2) At present at the stage of draft (Revision of IS0 635 : 974.) 3) At present at the stage of draft I n tern ati o n al Org an i z ati o n fo r S tan d ard i z ati o n 635- : 987 (E) I S0 I S0 2624, grai n Copper and copper Metal l i c materi al s al l oys - Esti mati on Tube - Dri ft of average Mandatory I S0 6493, I S0 6957, Copper corrosi on and resi stance - copper al l oys - expandi ng Ammon i a test for Thi s part of I S0 Orderi ng stress 1) i nformati on Th e pu rch aser i nformati on - h ardn ess - mech ani cal b) desi gnati on an d order th e fol l owi ng of th e man datory mechan i cal th e tu be materi al an d temper requ i red ( see an d 21 ; the d) properti es properti es : h ardn ess an d expan si on ( see tabl e an d 2) ; i n case of h ardn ess, wh eth er wel di n g th e - ou tsi de i s requ i red, wh eth er Vi ckers or Rockwel l - wal l - tu bes i) are mech an i cal n ot requ i red to be su i tabl e Rockwel l a ( see tabl e 3) (i f al l mi nu s (ei ther or mi n i mu m) pu rch aser’s exampl e i ntenti on to i nspect th e out, i ncl udi ng a certi fi cate tests of compl i an ce Th e chemi cal as speci fi ed th ose to be ag reed h ardn ess mech an i cal Tabl e Materi al I - compl y referred Chemi cal wi th the requ i remen ts to i n tabl e Al l Chemi cal I S0 wi th 337 I S0 I) At present I S0 condi ti on tests Di mensi ons by the pu rchaser, the expan di n g or copper- al l oy i n tabl e tu be sel ected for test shal l to 0, 05 mm agreemen t bet ween al l oy tu be an d be su bj ect to thi s the pu rch aser may be su ppl i ed to the stress test shal l fai l the test, not an d the i n th e stresscorrosi on test crack th e su ppl i er shal l h ave the i t to al l th e rel - an d tol erances Di ameter no poi nt shal l exceed the ou tsi de di ameter th e tol erances of speci fi ed th e tu be (i ncl u di ng i n tabl e 429 appl i cati ons Wal l thi ckness and so speci fi ed P, S and C appl y as i ndi cated in Un l ess su ppl i ed I n tern ati o n al Org an i z ati o n fo r S tan d ard i z ati o n wi thou t ei ther si ze of 0, Ol a l ot of materi al wel di ng at the stage of draft to copper- zi n c ci rcul ari ty) for di ameter eye 426-l Cu Ni 30Fe2Mn21 the restri cti ons for test shal l wi th- ou tsi de are n ot speci fi ed are speci fi ed grai n evan t At Cu Ni 30Mnl Fel ’ 429 sel ected I Cu Ni l OFel Mn ’ ) I S0 of to restress rel i eve th e l ot an d to resu bmi t Cu Zn28Snl by the purchaser, or composi ti on i n accordance I i s for subsequent th e Vi ckers properti es pi eces su bj ected opti on Cu Zn BOAs I f the tube wh eth er i s man datory to the u n ded an d dri ft heat- treated Su bj ect Sh ou l d Cu Zn20A1 I) or composi ti on desi gnati on Cu - DHP the i s requ i red Test shal l Stan dards al l tu bes to meet properti es h ave an averag e suppl i er, composi ti on meth od expan si on properti es - 2 ( see cl au se 6) ; composi ti on i n I S0 test vi si bl e - rel i eved Chemi cal expan di n g i t shal l be i ndi cated may ch oose Mechan i cal works; technol ogi cal of ( see ( see tabl e 4) ; i t i s the properti es properti es, expan di n g, cracks I f man datory averag e man datory tol erance be stated) , the tests to be carri ed for an d dri ft mi n i mu m exhi bi ti ng Requi rements I i s n ot for i.e di ameter pu rch aser, h ardn ess I n case of dri ft at th e su ppl i er’ s wh eth er of th e materi al an d h ardn ess both stan d thi s shal l l en gth of the h ardn ess 4 the condi ti on tensi l e stren gth h ard- ); thi ckness wh eth er h) opti on su ppl i er u pon, or may be ei ther - bu t 21 , g) to defi ne between I n case of h ardn ess, ( see tabl e di mensi on s, tu bes suffi ci ent - th e f) expan di n g properti es or n ess i s man datory; e) that ei ther possi bl e At quanti ty; c) th e pri nci pl e : a) tabl es an d dri ft Exact conversi on shal l state on hi s i nqu i ry 635 embodi es test ‘ ) are general l y properti es si ze otherwi se speci fi ed, averag e wal l thi ckness shal l be IS0 635-2 : 987 (E) 4.3.2.1 6.3 Estimation Average wall thickness of average grain size The estimation shall be made in accordance with IS0 2624 The average wall thickness shall not vary from the specified thickness by more than + % (including concentricity) when measured at any point at the ends (see table 3) 6.4 Draft expanding 4.3.2.2 The test shall be made in accordance with IS0 8493 Minimum wall thickness If a minimum wall thickness is specified, the wall thickness at any point shall not be less than the specified thickness The maximum deviation from the specified wall shall not exceed twice the plus tolerance stated in table 4.3.3 Tubes ordered to be a specified length shall not vary from that length by more than the tolerances specified in table 4, when measured at ambient temperature 4.3.4 Straightness The tubes shall be such straight as to easily slip them into tube plate Surface quality The tubes shall be clean, smooth, and defects and deleterious films in the bore may have a superficial, dull, iridescent oxide side and outside surfaces Drawn temper superficial film of drawing lubricant on the Methods 6.5 Tensile test The test shall be made in accordance with IS0 6892 6.6 Stress corrosion Length free from harmful Heat-treated tubes film on both the intubes may have a surfaces of test 6.1 Sampling Sampling shall be carried out in accordance with the procedures in IS0 4739 The lot size for sampling shall be 600 tubes or 000 kg, whichever is greater If not otherwise specified, the rate of sampling for condenser shall be two individual tubes per lot for each of the tests referred to in 6.2 to 6.6, as appropriate 6.2 Hardness test 6.2.1 Vickers hardness The test shall be made in accordance with IS0 6507-I 6.2.2 Rockwell hardness The test shall be made in accordance with IS0 6508 test test If required, the test is only carried out on copper-zinc alloys as listed in table The method shall be the mercury(l) nitrate test according to IS0 196 By agreement between supplier and purchaser, an ammonia test according to IS0 6957 may be specified instead of the mercury(l) nitrate test 6.7 Non-destructive tests Each tube shall be subjected to an eddy current test The test shall be performed on the tubes either in the final drawn or annealed temper The method of test and levels of calibration shall be agreed between supplier and purchaser until such time as an International Standard covering this test is published By agreement between purchaser and supplier, a hydrostatic or pneumatic test may be specified as an alternative to the eddy current test 6.8 Retests 6.8.1 If both test pieces which were originally taken from a lot fail to meet the specification for any reason, the lot shall be deemed not to comply with this part of IS0 635 6.8.2 If one of the two test pieces taken originally from the lot fails to meet the specification for any reason, two further test pieces shall be taken One of these two test pieces shall be taken from the plate, sheet or strip from which the failed test piece was originally taken, unless that plate, sheet or strip has been withdrawn from the lot by the supplier The other test piece shall be taken from another sample from the same lot All appropriate tests shall be carried out 6.8.3 Should both new test pieces pass the tests, the lot represented by the test pieces shall be deemed to comply with this part of IS0 635 Should either of the additional test pieces fail, then the lot represented by the test pieces shall be deemed not to comply with this part of IS0 1635 3’ I n tern ati o n al Org an i z ati o n fo r S tan d ard i z ati o n IS0 6352 : 987 (E) Table I Designation I Alloy I CuZnBOAs HA Hardness Vickers HV5 I I and mechanical Hardness I Temper I CU-DHP - I Rockwell 70to 00 F 60 to 83 Minimum expansion of diameter % I I I 60 to 250 I &l I N/mm2 250 % I 25 I 50 to 240 320 40 20 to 80 31 50 25 60 to 250 370 40 B 25 to 60 25 00 to 230 300 30 00 to 30 B 60 to 75 20 240 to 31 320 20 OS-35 90 to 20 B 40 to 70 25 20 to 250 370 30 OS-35 00 to 30 B 40 to 72 25 50 to 260 420 30 F 70 to 85 65 to 90 F 65 to 80 30 OS-25 85 to 1 B 45 to 65 OS-35 75 to 1 HA CuNi30MnlFe CuNi30Fe2Mn2 Table - Dimensions 25 25 and tolerances over Outside diameter Size range mm up to and incl Tolerance’) including circularity mm - 12 * 0,07 12 18 18 25 * 0,lO 2k 0.1 25 35 rt 0,1 35 50 k 0.1 Wall thickness Size range Tolerance mm mm from 0,7 up to and incl 2,5 + % (including concentricity) ) Minus tolerances instead of plus and minus tolerances can be supplied by agreement between purchaser and supplier When all minus tolerances are specified, they shall be twice the minus tolerance stated in the table Table - Tolerances on length ; ,.Qj?$yJ:::, ToI; 5.0 65 I n tern ati o n al Org an i z ati o n fo r S tan d ard i z ati o n A5 40 OS-35 CuNilOFelMn I I properties 320 F 65 to 85 CuZn20Al2 R P 0.2 N/mm2 50 to 240 80 to 05 OS-25 OS-25 CuZn28Snl Mechanical I 25 80 to 05 properties 6,5 +4 10 +5 10 20 +9 20 30 +1 0 I I S0 635- : 987 (E) U DC 669 3- 41 Descri ptors : 621 : wrou ght Pri ce based on pages I n tern ati o n al Org an i z ati o n fo r S tan d ard i z ati o n produ cts, copper products, copper tu bes, speci fi cati ons, di men si on s