EN 10139-1997 6250 Cold Rolled Uncoated Mild Steel Narrow Strip for Cold Forming - Technical Delivery Conditions《冷成型加工用无涂层低碳钢制冷轧窄钢带 技术交货条件》.pdf

《EN 10139-1997 6250 Cold Rolled Uncoated Mild Steel Narrow Strip for Cold Forming - Technical Delivery Conditions《冷成型加工用无涂层低碳钢制冷轧窄钢带 技术交货条件》.pdf》由会员分享，可在线阅读，更多相关《EN 10139-1997 6250 Cold Rolled Uncoated Mild Steel Narrow Strip for Cold Forming - Technical Delivery Conditions《冷成型加工用无涂层低碳钢制冷轧窄钢带 技术交货条件》.pdf（27页珍藏版）》请在麦多课文档分享上搜索。

1、STD-CEN EN 10137-ENGL 1777 3404587 017OLLiO 772 RATIFIED EUROPEAN TEXT EN10139: 1997 European Standards only exist formally as national transpositions e. a BS EN for the K) of a commonly agreed “ratified“ text. This document is a ratified text which wiil shortly be published as a BS EN. It is being

2、made available in advance of its formal publication to give interested parties early access to the technical information which the BS EN will contain. When the BS EN is formally published it will be supplied to you automatically, without any additional charge. Purchasers of this ratified text should

3、 be aware of the following limitations when using the document. O The BS EN may contain additional information in the national foreword or national -x, Fuil rights conferred by compliance with the standard may oniy be granted by reference to the formal national transposition of the text as a BS EN.

4、This ratified text was approved by CENXENELEC in its three officiai languages on the date given below. Under CEN/CENELEC mies. BSI is obliged to publish its national transposition within six months of this date. This ratified text was approved on 1996-11-24 U- NO COPYING WITHOUT BSI PERMISSION EXCEP

5、T AS PERMITTED BY COPYRIGHT LAW Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 10139 November 1997 ICs .140.50 Descriptors:

6、cold idled products, strips, low carbon steels, unalloyed steels, cold-working, classifications, grades:quality, delivery conditions, designation, characteristics, tests English version Cold rolled uncoated mild steel narrow strip for cold forming - Technical delivery conditions Feuillards non revtu

7、s lamins froid en aciers doux pour formage froid - Condions techniques de livraison Kakband ohne berzug aus weichen Stahlen zum Kaitumformen - Technische Lieferbedingungen This European Standard was approved by CEN on 24 November 1996. CEN members are bound lo comply with lhe CENKENELEC Internal Reg

8、ulations which stipulate the conditions for giving this European Standard lhe slalus of a national standard without any aiteration. Uplwiale lisls and bibliographical references concerning such national standards may be obtained on application lo the Central Secretarial or lo any CEN member. This Eu

9、ropean Standard exisls in three offiicial versions (English, French, Qerman). A version in any dher language made by translation under lhe responsibility of a CEN member into its own language and notified lo lhe Central Secretariat has the same status as the official versions. CEN members are lhe na

10、tional standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Qreece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMEE H)R STANDARDIZATION COMIT8 EUROPCEN DE NORMALISATION EUROPISCHES

11、KOMITEE FOR NORMUNG Central Secretariat: rue de Starrart, 36 8-1050 Brursels Q 1997 CEN All rights of exploitation in any form and uy any means resewed worldwide for CEN nalional Members. Ref. No. EN 10139:1997 E Copyright European Committee for Standardization Provided by IHS under license with CEN

12、Not for ResaleNo reproduction or networking permitted without license from IHS-,-,- STD.CEN EN LO139-ENGL 1997 3404589 0170142 7b5 page2 EN 10139: 1997 Contents Fareword 1 2 3 4 5 6 6.1 6.2 6.3 6.4 6.5 6.6 6.7 6.8 7 7.1 7.2 7.3 7.4 7.5 8 9 10 11 12 scope Normative =fenmas Ikfhitions Classfication of

13、 grades and eliveg dtim Designation prapeata produdion processes and chemical composition Choice of propeities IvlahmiCal and tebnological praperties S*characteristi - cs Stretdlerstrains suitability for the application of surfice coatings Weldability Dimensians, masses, permissible tolerances Testi

14、ng 4F=-laccePtance- Acceptanceunitsandniniberoftests sampling and prepation of test pieces Test methods to be followed Re-tem Marking Oiling packing Mdonto be suppliedby the purchaser Du page 3 7 7 7 7 8 9 9 10 10 10 10 10 11 11 11 12 12 12 13 13 A (n0rmative)Mehdofdeterminati * onoftheplasticstrain

15、ratior 18 C (iive) List of national standards complying with the EURONORMS B (narmative)Melaodof- onofthestrainhardenuign 22 given in the references Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without li

16、cense from IHS-,-,- STD-CEN EN 30337-ENGL 1797 3404587 0370343 bT3 pw 3 EN 10139: 1997 Foreword This European Standard has been prepared by Technical Committee ECISSITC 13 “Flat products for cold working - Qualities, dimensions, tolerances and specific tests“, the secretariat of which is held by IBN

17、IBIN. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by May 1998, and conflicting national standards shall be withrawn at the latest by May 1998. According to the CENICENELEC Internal Regulations, t

18、he national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Nomay, Portugal, Spain, Sweden, Switzerland and the United King

19、dom. I Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- STDOCEN EN 10139-ENGL 1997 3YOLi587 0170144 538 D page 4 EN 10139: 1997 1.1 ?his European standard applies to cold rolled

20、narrow strip in coils and cut lengths in alloyed steels in auxdame with table 1. thi-upto 1ommandofwilessthan6oomm,mild,unalloyedand ”hese produds are suitable for cold forming. They are also suitable for surfttue coating. n the other hand, they are not suitable for hardenllig treatment followed by

21、temperin - #.phorid magnetic steel sheet and strip (EN 10107); - semi- steel strip for the COflStNCtion of magfietic circuits ( EN 10126 and EN 10165); - cold rolled narrw dp for the m8niifitcture of spring (nJRONORM 132); - high yield strength steels for cold farming (EN 10268); - dd rolled i.rncaa

22、ted low carbon steel flat - cold blaclimensions, mass, permissible tolerances 48.1 Forthe dimeaisians and the tolerances on dimensions and shape, see EN 10140. a82 A derisity of 7,85 kg/dm3 shall be assumed for calculating the masses far all types of steel covebed by this Eurapean standard 7 Testing

23、 7.1 Agreement of awptance testing 7.1.1If a test is specified by a purchaser, he shall specisl at the time of tendering and ordaing. - the type of test (specific or non-specific) (see EN 10021); -the type oftest (kxumea (see EN 10204). 7.1.2 Thespecific test shall be camedout inconformity withthe-

24、of 7.2 to 7.5. 7.2 Acceptm units and number of tesQ 7.21 The -unit is 5 t or fiaction of 5 t ofpmducts of the same steel grade, the same delivery ccmdition and with the same surfce characteristics and nominai hickness. Coils weighing mare than 5 t shall be regarded as one acceptance unit. All produd

25、s belonging to one accqmce unit shall be finln the same ast. Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-page 11 EN 10139: 1997 7.22For each acceptance unit a tensile test sh

26、all be Carried out and where appraPiate a deCamination of n and r (see table 1 and annexes A and B). Aitmnatively if specified at the time of ordering ahardness test shall be canled out. 7.3 Sampng and preparation of test pieces 7.3.1 A sample of adequate size for all the tests to be carried out sha

27、ll be taken bm the produds comprisinghe acceptance unit hmany position on the strip or cut length. In cases of dispiite, this sample shall be taken hm a position at least 3 m hm one of the ends of the coil. 7.3.2 nie tensile test pieces shall be taken hm sarriples Compiying with 7.3.1, parallel to t

28、he direction in which the product was rolled. he test pieces should not be finther worked on either surfke. 7.33 When Cutting the test pieces hm the samples, as little deformation as possible shall be then be fiirther ded (see EXJRONORM 18). caused. If shears orcirttingw are an adequate surplus shal

29、l be allo* which will - 7.4 Test methods to be followed - = - 7.4.1 All mechanical and technological tests shall be Carried out at ambient tempei*ature. - - l+ m * 7.4.2 The tensile test shall be carried out in accordance with EN 10002-1. 7.43 If agreed separately at the time of orQerin IIhiCW pitti

30、ng small defects and saatches are permitted. mditim pitting paves and saatches are permitted as long as the uniform 12,o mm“ all treatment smooth appeat.ance is not substantially conditions impairedwhenviewedwiththenaked exceptA eye- Mc Bright, metallically clean surface; llliCW pitting grooves and

31、ScxBICIKs are permitted as long as the iaiiform 1 l,o mm) all treatment appearance of the mirror sirrface is not condifions impaited except A Page 17 EN 10139: 1997 ShfniSh (see 6.4.3) wwRL2) RL2) F“ Table 2: Surface appearances and finishes 2, nie code letters need not be given in the designation.

32、I Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Page 18 EN 10139: 1997 Annexes Annex A (normative Method of determination of the plastic strain ratio r NOTE: his annex is based

33、upon the procedures being developed by IS/TC 164/SC2. A1 Definitions, symbols and designations kl.1 Plastic strain ratio r is defbed as the ratio of true width and thickness strains in a test piece hat has been submitted to uniaxial tensile stress. b)to detennine the widih values at the prescribed s

34、train level (autmdc lekdmion). Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Page 21 EN 10139: 1997 k5.6 For manual de exmnent ) In som countries a. is used instead of n. mm mm

35、 N.d N N.d Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-page 24 EN 10139: 1997 K4 Test piece 84.1 The sampling and Preparation of the test piece shall be in accordance with EN

36、 10002: Part 1, the test piece type is no 2 (80 d20 mm). E42 ?he gauge length shall be between SO mm and 80 mm but pfdly 80 mm. he wge length shall be measured within f 0,Oi mm using a evice having rsdequate accuracy. 85 Procedure E51 In general, the test is canid out at ambient temperature between

37、10 OC and 35 OC. Testscamedoutundercontrolledconditionsshailbemadeatatemperatureof23 OC*5 OC. 85.2 The test piece shall be mounted in the testing machine so that the force can be applied axiaily in accordance with EN 10002: Part 1. 853 le speed of the machine, as defined by the speed of sepration of

38、the cms-heads of the machine, expI?essed as a vge of the parallel length per minute, shall in no case excee 50. This speed shall be kept coflst8nt in the time interval over which the tensile hardening exponent is calculated 85.4le farce and canrespondin * g strain shail be remxde at a minimum of Spi

39、nts, distnbutedatequaldistanceswithintheStrainranjpof 10 %to20 %(lo %to 15 %. 18 % refer to B.2) fop which the strain hardening exponent is calculated. BSSFrom the values of the farce and the corresponding strain, the true stress shall be calailatedushgthefomwla: and the true strain shall be calcula

40、ted using the fmdx and the logarithms of these values shall be obtained. Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- STD-CEN EN LOL37-ENGL 1777 D 3404589 OL70Lb5 2b2 D Page

41、25 EN 10139: 1997 85.6 e n value is calculated ushg the fomula given below, the standard formula for calculating the inclination of a straight line using the statistical method of least squares: where y =k+B with y=lno x=lne A=n B=lnK * * 85.7 Calculd values of the Strain hardening exponent, n, shal

42、l be rounded to 0,005. u) B.5.8In the case of dispute the testing shail be carried out with three test pieces of the specified orientation relative to the rolling direction. ?he average value of the 3 tests shall be considered 3.6 Test report The orientation of the applied sain relative to the rolli

43、ng direction shall be added as an index figure x, the upper limit of the applied strain range, if not 20 %, shall be given as an index figure Y. Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without licens

44、e from IHS-,-,-Page 26 EN 10139 1997 Emnorm Aunex C (informative) List of national standards compiying wib the eumnonus given in the derences (see ciause 2) Genriany France united Italy Kingdom DIN NF BS UNI Ud they are transfarmed into European StandaKls, either the EURONORM!3 or the correspondingn

45、atidstandardsgivenintableC.1 maybeused. Table C1: Euronotm d corresparding national standards Is- 10G3 1 AO3-154 I427 I 195s I l8 I- I A 03-111 I 144911 I UNI- Eu 18 I49 I- l- I- l- Is* I Belgium peden NBN ISS IUNE I All-107 I - I7423 I I 36-300 I I 11 0105 A03-001 11 0120 Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-