1、STD-AECMA PREN 2Ub-4-ENGL 1774 1012311 001bb09 2T 9 AECMA STANDARD NORME AECMA AECMA NORM prEN 2069-4 Edition 2 April 1994 EDIT PAR LASSOCIATION EUROPEENNE DES CONSTRUCTEURS DE MATERIEL Al!ROSPATIAL Technopolis - 175, rue Jean-Jacques Rousseau - F-92138 Issy-les-Moulineaux Cedex - Tl. (1) 47.36.98.7
2、6 Supersedes Edition 1 August 1980 ENGLISH VERSION INSPECTION AND TESTING REQUIREMENTS FOR STEEL WROUGHT PRODUCTS PART 4 - INSPECTION AND TESTING REQUIREMENTS FOR TUBES AEROSPACE SERIES CONDITIONS DE CONTRLE ET DESSAI DES PRODUITS CORROYS EN ACIERS PARTIE 4 CONTRLES ET ESSAIS SUR TUBES SRIE AROSPATI
3、ALE LUFT-U N D RAUM FAHRT KONTROLL-UND PRFFORDERUNGEN FR KNET-HALBZEUGE AUS STAHL PRFFORDERUNGEN FR ROHRE TEIL 4 - KONTROLL-UND Arospatial) and has been cir Official Services and not resolved in this issue, panied this prEN to CEN. It is published receive, under the same presentation and Replace pag
4、e 1 of the previous edition by this page Declassification approved 1994-04-29 The equivalent versions in French and German can be supplied by B.N.A.E. - Technopolis 54 - 199, rue Jean-Jacques Rousseau 921 38 ISSY - LES - MOULINEAUX CEDEX - FRANCE aecma 1994 Copyright Association Europeene des Constr
5、ucteurs de Materiel Aerospatial Provided by IHS under license with AECMANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-c prEN2069-4 Poge 2 CQ NTENTS o INTRODCTION 1 SCOPE AND FIELD OF APPLICATION 2 REFEXENCES 3 MECHANICAL TESTS ON PRODUCTS BEFORE DELIVERY 4 TESTS
6、SPECIFIC TO CERTAIN CATEGDRIEC OF MATERIAL 5 DIMENSIONS, TOLEXANCES AND SURFACE DEFECTS ! 6 MARKING AND PACKAGING 1 - 1 Copyright Association Europeene des Constructeurs de Materiel Aerospatial Provided by IHS under license with AECMANot for ResaleNo reproduction or networking permitted without lice
7、nse from IHS-,-,-O O 1 O 2 O 3 prEN2649-4 Page 3 DRAFT EUROPEAN STANDARD AEROSPACE SEKIES pr EN20 49 -4 INSPECTION AND TESTING REQUIREmNTS . PART 4 - INSPECTION AND TESTING REQUIREME“IS FOR TUBES FOR STEEL WROUGHT PRODUCTS INTRODUCTION The general requirements for inspection and testing of wrought p
8、roducts in steels are given in EN2069-1. SCOPE AND FIELD OF APPLICATION This standard specifies the inspection and testing requirements for steel tubes : stfuctural tubes, - tubular blanks obtained by extruding, rolling and/or cold drawing, - tubular blanks obtained by drilling forged, or rolled bar
9、 with a machine tool, used in aerospace constructions. REFERENCES IS0 83-1976, Steel. GHARPY impact test (U-notch) EN2002-1, EN2092-7, Test methods for metallic materials. Part 7 : hardness test ,EN2002-9, EN2002-10, Test methods for metallic materials. Part 10 : flattening test EN2003-2, Test metho
10、ds for skeel. products. Part 2 : IZOD impact test EN2069-1, Test methods for metallic materials. Part 1 : roon temperature tensile test 1) I Test methods for metallic materials. Part 9 : drifting test on tubes ! on tubes 1 Inspection and testing requirements for steel wrought products, Part 1 : gene
11、ral requirements. MECHANICAL TESTS ON PRODUCTS BEFORE DELIVERY The frequency of testing is given in table 1 of this standard. 3.1 Hardness test (see EN200Z-7 The hardness tests shal be-conducted only to check batch uniformity by compa- rison with the hardness test done on the tensile test piece. It
12、is made on the surface of the tube or a portion of the tube, after grinding i this is necessary eo insure an accurate measurement, The method of testing used shall be that given in the material standard depending on the thickness. light, - 3.2 Tensile and impact tests (See EN2002-1 I), IS0 83 and EN
13、2003-2) “he test pieces to be selected for the tensile and impact tests shall be of max- mum cross section compatible with the cross section of the product. The impact test pieces shall be extracted EQ that the notches are perpendicular to the grain flow. 1) in preparation. Copyright Association Eur
14、opeene des Constructeurs de Materiel Aerospatial Provided by IHS under license with AECMANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-prEN2069-4 Page 4 3.3 Flattening (See EN2002-1 Flattening shall be carried out in accordance with the relevant standard and the
15、acceptance criteria are those of the material standard, Drift test (See EN2002-9 I) The drift test shall be used only for tubes of a wall thickness of .C 2 mm. mis test shall be carried out in accordance with the appropriate standard and the acceptance criteria are to be those of the material standa
16、rd, 3.4 4 TESTS SPECIFIC TO CERTAIN CATEGORIES OF MATERIAL 4.1 Decarburization Unless specially required by the material standards, products supplied hear. treated or annealed shall not exhibit decarburization of more than S% of the thickness, This decarburization shall however not exceed 0,2 mm. Th
17、is limit may be reduced by agreement between producer and customer as recorded in the test schedule. The measurement shall be made on a sample of the product in the as de 1 ived condit ion, Decarburization shall be checked according to the appropriate standard. 4.2 Intergranular corrosion This test
18、is required on tubes in austenitic corrosion resisting steels as indicated in the material standards, This test shall be carried out according to the appropriate standard. 4.3 Additional tests (see EN2069-1) i Other checks or further tests may be carried out, provided that they are included: in the
19、test schedule following agreement: between producer and customer. I 5 DIMENSIONS, TOLERANCES AND SURFACE DEFECTS 5.1 These parameters shall be inspected at a rate of 100%. 5.2 Dimensions and tolerances shall conform to the appropriate standards, 5.3 The surface of the products shall generally be cle
20、an, smooth and free from defects harmful to use such as cracks., pitting, score marks, inclusions and incrus tations , The surface of all rolled and extruded products shall be examined visually called for on the order and/or the test schedule, Unless otherwise specified in the order, cold drawn prod
21、ucts shall exhibit a surface free from traces of oxidation and score marks, the product remains within the limits of dimensional tolerances, 5.4 i without magnification, in the as heat treated and as delivered condition ! i i 5.5 5.6 Dressing by the producer to remove surface defects is permimed pro
22、vided that 5.7 ! i i t i I : The use of a set of acceptable surface finishes presented by the producer and . agreed by the customer is strongly recommended. 6 MARKING AND PACKAGING In addition to the general requirements of EN2069-1 , products of maxi- muni transverse dimensions of less than 20 mm m
23、ay be supplied in bundles, 1) in preparation, Copyright Association Europeene des Constructeurs de Materiel Aerospatial Provided by IHS under license with AECMANot for ResaleNo reproduction or networking permitted without license from IHS-,-,- prEN2069-4 Page 5 L O r o c- B L o c- 2 E; L a: o i- 8 I
24、 L al Q Y k P s O c s o o s O I I 0 N I a P L m s O F I I L o +J B L a) Q L o a c-4 U m 01 c I- h I I Fi; -. Copyright Association Europeene des Constructeurs de Materiel Aerospatial Provided by IHS under license with AECMANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
