1、INTERNATIONAL STANDARD IS0 6208 First edition 1992-07-I 5 Nickel and nickel alloy plate, sheet and strip Plaques, fdles et bandes en nickel et alliages de nickel Reference number IS0 6208:1992(E) Copyright International Organization for Standardization Provided by IHS under license with ISONot for R
2、esaleNo reproduction or networking permitted without license from IHS-,-,-IS0 6208:1992(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 o
3、ut 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, govern- mental and non-governmental, in liaison with ISO, also take part in the work. IS0
4、 collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an Inter- national Standard requires app
5、roval by at least 75% of the member bodies casting a vote. International Standard IS0 6208 was prepared by Technical Committee ISO/TC 155, Nickel and nickel alloys, Sub-Committee SC 2, Wrought and cast nickel and nickel alloys. Annex A of this International Standard is for information only. 0 IS0 19
6、92 All rights reserved. No part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from the publisher. International Organization for Standardization Case Postale 56 l CH-1211 Ge
7、neve 20 l Switzerland Printed in Switzerland ii Copyright International Organization for Standardization Provided by IHS under license with ISONot for ResaleNo reproduction or networking permitted without license from IHS-,-,-INTERNATIONAL STANDARD IS0 6208:1992(E) Nickel and nickel alloy plate, she
8、et and strip 1 Scope This international Standard specifies requirements for hot-rolled or cold-rolled nickel and nickel alloy plate, sheet and strip, for general applications in the following size ranges: - plate over 4 mm up to and including 100 mm; - sheet up to and including 4 mm; - strip up to a
9、nd including 4 mm. 2 Normative references The following standards contain provisions which, through reference in this text, constitute provisions of this International Standard. At the time of publi- cation, the editions indicated were valid. All stan- dards are subject to revision, and parties to a
10、greements based on this International Standard are encouraged to investigate the possibility of ap- plying the most recent editions of the standards in- dicated below. Members of IEC and IS0 maintain registers of currently valid International Standards. ISO/R 204:1961, Non-interrupted creep testing
11、of steel at elevated temperatures. ISO/R 206:1961, Creep stress rupture testing of steel at elevated temperatures. IS0 6372-1:1989, Nickel and nickel alloys - Terms and definitions - Part 1: Materials. IS0 6372-3:1989, Nickel and nickel alloys - Terms and definitions - Part 3: Wrought products and c
12、astings. IS0 6507-1:1982, Metallic materials - Hardness test - Vickers test - Part 1: HV 5 to HV 100. 1) To be published. IS0 6508:1986, Metallic materials - Hardness test - Rockwell test (scales A - B - C - D - E - F - G - H - K). IS0 6892:1984, Metallic materials - Tensile testing. ISO/TR 7003:199
13、0, Unified format for the designation of metals. ISO/TR 9721:-l), Nickel and nickel alloys - Code of designation based on chemical symbols (To be pub- lished as an ISOITR type 2). IS0 9722:1992, Nickel and nickel alloys - Composi- tion and forms of wrought products. ASTM E 112:1988, Standard methods
14、 for determining the average grain size. 3 Definitions For the purposes of this International Standard, the definitions for nickel and nickel alloys in IS0 6372-l and for plate, sheet and strip in IS0 6372-3 apply. 3.1 heat: The product of a furnace melt or a number of melts that are mixed prior to
15、casting. 3.2 lot: Plate, sheet or strip of the same thickness, from the same heat, heat treated together or sequentially heat treated in a continuous furnace, but in no case for longer than 16 h of production. 4 Alloy identification For the purposes of this International Standard, the principles for
16、 alloy identification in ISO/TR 7003 and in ISO/TR 9721 apply. 1 Copyright International Organization for Standardization Provided by IHS under license with ISONot for ResaleNo reproduction or networking permitted without license from IHS-,-,-IS0 6208:1992(E) 5 Ordering information Orders for plate,
17、 sheet or strip according to this international Standard shall include the following information: 5.1 The number of this international Standard. 5.2 Quantity (mass or number of pieces). 5.3 Alloy identification (see table 1). NOTE 1 For alloy identification either the number or the description may b
18、e used. 5.4 Alloy temper (see tables 2 and 3) NOTE 2 Precipitation-hardenable alloys are normally ordered in the non-precipitation-hardened condition. 5.5 Dimensions: thickness, width, and length (or coil dimensions in the case of strip). 5.6 Edges (see 6.7.6). 5.7 Optional requirements: a) tensile
19、properties of strain-hardened conditions (see table 2, footnote 4); b) samples for product analysis (see 7.1.2); c) determination of 1 % proof stress (A,) (see 9.2.4); d) purchaser or third-party inspection (see clause 11); e) declaration of conformity (see clause 12). 6 Requirements Plate, sheet, a
20、nd strip shall meet the following re- quirements. 6.1 Composition Heat analysis shall meet the composition limits specified in table 1. The composition limits do not preclude the possible presence of other elements that are not specified. If the purchasers requirements necessitate limits for any oth
21、er element that is not specified, these shall be agreed upon between the purchaser and the supplier. The percentage content of elements shown as “remainder” shall be calculated by difference from 100 %. 6.2 Tensile properties Plate, sheet and strip shall have the tensile proper- ties specified in ta
22、ble 2. 6.3 Hardness Plate, sheet and strip shall meet the hardness re- quirements specified in table 2. The type of hardness test shall be at the option of the supplier. 6.4 Grain size Plate, sheet and strip shall meet the grain size re- quirements specified in table 2. 6.5 Creep or stress rupture P
23、late, sheet and strip shall meet the creep or stress rupture requirements specified in table 4. 6.6 Surface quality Plate, sheet and strip shall be clean and free from detrimental surface imperfections. NOTE 3 Where appropriate, the acceptance criteria should be agreed upon by the purchaser and the
24、supplier. 6.7 Dimensional tolerances 6.7.1 Thickness The tolerance on thickness shall be as specified in tables 5 to 8. For use with table5, hot-rolled plate shall be assumed to possess the density shown in table 1. 6.7.2 Width and length 6.7.2.1 The tolerance on width and length of hot- rolled plat
25、e shall be as specified in tableg. 6.7.2.2 For hot-rolled sheet, cold-rolled plate and cold-rolled she:; ordered in specific cut lengths, a tolerance of 0 mm over the specified length is permitted. 6.7.2.3 For cold-rolled strip ordered in specific cut lengths, a .tolerance of 0 mm over the specified
26、 length is permitted. For the width of cold-rolled strip, the tolerances specified in table 10 apply. 2 Copyright International Organization for Standardization Provided by IHS under license with ISONot for ResaleNo reproduction or networking permitted without license from IHS-,-,-IS0 6208:1992(E) 6
27、.7.3 Straightness (edgewise curvature) The edgewise curvature (depth of chord) of plate and sheet shall not exceed 5 mm multiplied by the length in metres. NOTE 4 The edgewise curvature for strip should be agreed upon by the purchaser and the supplier. 6.7.4 Flatness The flatness tolerance for hot-r
28、olled plate shall be as specified in table 11. 6.7.5 Squareness The adjacent sides of hot-rolled and cold-rolled sheet and cold-rolled plate shall be square within 3 mm in 1 000 mm. 6.7.6 Edges Material shall have edges as specified in the order. When no description of any required form of edge is g
29、iven, the practice of the supplier shall apply. 7 Sampling 7.1 Chemical analysis 7.1.1 Representative heat analysis samples shall be taken during pouring or subsequent processing. 7.1.2 Product analysis samples shall be taken from the finished product. 7.2 Tensile and creep or stress rupture tests T
30、ensile and creep or stress rupture test samples shall be taken from material in the final heat-treated condition, and tested transverse to the direction of rolling where the width permits this. 8 Number of tests 8.1 Chemical analysis, one test per heat. 8.2 Tensile test, one test per lot. 8.3 Creep
31、or stress rupture test, one test per lot. 8.4 Hardness test, one test per lot. 8.5 Grain size determination, one test per lot. 9 Test procedures 9.1 Chemical analysis 9.1.1 The method of chemical analysis shall be at the option of the supplier, however in cases of dis- pute the method specified in t
32、he relevant Inter- national Standard shall be used. If no International Standard exists, an analytical method that can be calibrated to a reference stan- dard agreed upon by the purchaser and the supplier shall be used. 9.1.2 For a list of IS0 analytical standards, see an- nex A. 9.2 Tensile testing
33、 9.2.1 Testing shall be carried out in accordance with IS0 6892. 9.2.2 Test pieces to be used for sheet and strip between 0,l mm and 3 mm thick shall be in accord- ance with annex B of IS0 6892:1984. 9.2.3 Test pieces to be used for plate, sheet and strip which is 3 mm or greater thick shall be in a
34、c- cordance with annex D of IS0 6892:1984. 9.2.4 The offset method shall be used for the de- termination of proof stress. An offset of 0,2 % (I$,) shall be standard. However, a 1 % proof stress (R, J shall be determined and reported for infor- matjon when requested by the purchaser. 9.3 Creep and st
35、ress rupture testing 9.3.1 Creep testing shall be carried out in accord- ance with ISO/R 204, except that only the final total plastic strain need be reported. 9.3.2 Stress rupture testing shall be carried out in accordance with ISO/R 206. 9.4 Hardness testing 9.4.1 Vickers hardness Testing shall be
36、 carried out in accordance with IS0 6507-I. 9.4.2 Rockwell hardness Testing shall be carried out in accordance with 1SO 6508. 3 Copyright International Organization for Standardization Provided by IHS under license with ISONot for ResaleNo reproduction or networking permitted without license from IH
37、S-,-,-IS0 6208:1992(E) 9.5 Grain size determination 9.7 Retests A transverse sample representative of the full thick- ness shall be examined in accordance with ASTM E 112. 9.6 Rounding-off For the purpose of determining compliance with the specified limits of the properties listed below, an observed
38、 or calculated value shall be rounded as follows When the figure immediately after the last figure to be retained is lower than 5, the last figure to be retained remains unchanged. When the figure immediately after the last figure to be retained is 5 or greater, the last figure to be retained is inc
39、reased by one. Composition, creep, grain size, hardness, and dimensions Tensile strength R,) 0,2 % -Proof stress Nearest unit to the last right-hand place of fig- ures of the specified limit Nearest 10 N/mm 2 Nearest 5 N/mm 2 (Rpcd Elongation (A) Nearest 1 % If any one of the test pieces first selec
40、ted fails to pass the specified tests, two further samples from the same lot shall be selected for testing, one of which shall be from the original product tested, un- less that product has been withdrawn by the sup- plier. If the test pieces from both these additional samples pass the tests, the lo
41、t represented by the test samples shall be deemed to comply with the requirements of this International Standard. If the test pieces from either of these additional samples fail, the lot represented by these samples shall be deemed not to comply with the requirements of this International Standard.
42、10 Marking Each piece of plate and sheet and each coil of strip shall be marked in at least one place with the num- ber of this International Standard, the alloy identifi- cation (either the number or the description), the heat number and the manufacturers name. 11 Purchaser and third party inspecti
43、on On-site inspection of plate, sheet and strip shall be in accordance with the agreement made between the purchaser and the supplier as part of the pur- chase contract. 12 Declaration of conformity When requested by the purchaser in the contract or order, the supplier shall certify that the plate,
44、sheet and strip were manufactured and tested in accord- ance with this International Standard. The declar- ation of conformitiy shall detail the results of all tests required by this International Standard and the or- der. I j / I , I 1 , I g i 1 ;: : I 1 i i, i: 6 i L ! I I I I F I 1 /, / 1 / I I /
45、 I I 4 Copyright International Organization for Standardization Provided by IHS under license with ISONot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Alloy identificationl) Number Description Al B Composition, % (m/m)21 Density31 c Co4 Cr Cu Fe Mn MO Ni P S Si Ti W
46、 Otherf Copyright International Organization for Standardization Provided by IHS under license with ISONot for ResaleNo reproduction or networking permitted without license from IHS-,-,-co Thickness Tensile 0,2 %-Proof strength stress2) Elongations) Grain size Alloy identificationl) Number Descripti
47、on Temper Hardness Corre- Average mm R sponding m, min. Rp0,2, min. AS, md40, min. ASTM grain NO. diameter up to over and N/mm2 N/mm2 % Vickers Rockwell mm including NW6617 NiCr22Co12Mo9 Annealed All 650 240 35 - - - - NW7750 NiCrlSFe7Ti2Al Hot-roiled, solution ( treated All 6) 6) 6) - - - - Hot-rol
48、led, solution 4 25 1 100 720 18 - - - - and precipitation treated Cold-rolled, solution treated All 6) 6) 6) - - - - Cold-rolled solution O,l 0.4 1 100 and precipitation 0,4 1 170 790 18 - - - - treated NW6600 NiC;I5Fe8 Annealed All 550 240 30 - - - - Hot-rolled, as rolled41 All 580 240 30 - - - - C
49、old-rolled, hard51 Cold-rolled, half- harda) All 860 620 2 min. 248 min. 23 HRC - - All - - - 200 to 228 93 to 98 - - Cold-rolled, deep - 0,25 - - - max. 179 max. 68 7,5 max. 0,027 drawing quality strip 0.25 0,5 - - - max. 170 max. 85 6 max. 0,045 0,5 3.0 - - - max. 170 max. 85 4 max. 0,09 Cold-rolled, deep drawing quality sheet 0.25 0.5 0.5 - - - - - - - max. 170 max. 170 max. 85 6 max. 0.045 max. 85 4 max. 0,09 NW6602 NiCrlSFeB-LC Annealed Al
