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1、 STD-JIS G 5705-ENGL 2000 W 4933608 O567235 594 = JIS JAPANESE INDUSTRIAL STANDARD Translated and Published by Japanese Standards Association Malleable iron castings ICs 77.140.80 Descriptors : malleable cast-iron, ferrous alloys Reference number : JIS G 5705 : 2000 (E) 7s Copyright Japanese Standar
2、ds Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/12/2007 20:52:30 MDTNo reproduction or networking permitted without license from IHS -,-,- STDmJIS G 5705-ENGL 2000 W 4933608 0567236 420 G 5705 : 2000 Foreword This translati
3、on has been made based on the original Japanese Industrial Standard established by the Minister of International Trade and Industry through deliberations at the Japanese Industrial Standards Committee in accordance with the Industrial Standardization Law. Consequently JIS G 5702 : 1988, JIS G 5703 :
4、 1988 and JIS G 5704 : 1988 were abolished and thus have been replaced with JIS G 5705 : 2000. Date of Establishment: 2000-02-20 Date of Public Notice in Official Gazette: 2000-02-21 Investigated by: Japanese Industrial Standards Committee Divisional Council on Iron and Steel JIS G 5705 :2000, First
5、 English edition published in 2000-11 Translated and published by: Japanese Standards Association 4-1-24, Akasaka, Minato-ku, Tokyo, 107-8440 JAPAN I n the event of any doubts arising as to the contents, the original JIS is to be the final authority. O JSA 2000 All rights reserved. Unless otherwise
6、specified, 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. Printed in Japan Copyright Japanese Standards Association Provided by IHS under license
7、with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/12/2007 20:52:30 MDTNo reproduction or networking permitted without license from IHS -,-,- STD.JIS G 5705-ENGL 2000 4933608 05b7237 367 JAPANESE INDUSTRIAL STANDARD JIS G 5705 : 2000 Malleable iron castings . I* . Introd
8、uction This Japanese Industrial Standard has been prepared based on the first edition of IS0 5922 Malleable cast iron, published in 1981, in order to conform the corresponding parts (marking, mechanical properties, and test methods) with the International Standard without any modification of the tec
9、hnical contents. How- ever, the specified contents, which are relating to the mechanical characteristics and test methods but are not specified in the corresponding International Standard, have been supplemented as the Japanese Industrial Standard and furthermore, the specified items (dimensions, ap
10、pearance, and test method), which are not specified in the cor- responding International Standard, have been supplemented as the Japanese Industrial Standard. In this Standard, the portions underlined with dots are the items not specified in the corresponding International Standard. 1 Scope This Jap
11、anese Industrial Standard specifies requirements by malleable iron castings. It also gives a classification on the basis of mechanical properties. This Standard is applicable only to malleable iron castings that were cast into sand moulds or moulds with comparable thermal diffusivity. Remarks : The
12、International Standard corresponding to this Standard is as fol- lows. IS0 5922 : 1981 Malleable cast iron 2 Normative references The following standards contain provisions which, through reference in this Standard, constitute provisions of this Standard. The most recent editions of the normative re
13、ferences shall apply. JIS G 1211 Iron and steel-Methods for determination of carbon content JIS Z 2202 Test pieces for impact test for metallic materials JIS Z 2241 Method of tensile test for metallic materials JIS Z 2242 Method of impact test for metallic materials JIS Z 2243 Brinell hardness test-
14、Test method 3 Definition and characteristics 3.1 malleable iron castings The material of malleable iron castings is a heat- treated iron-carbon alloy, which solidifies in the as-cast condition with a graphite- free structure. That is, the total carbon content is present in the combined form as cemen
15、tite (Fe b) large section size: - surface zone = ferrite - intermediate zone = pearlite + ferrite + temper carbon - core zone = pearlite (+ ferrite) + temper carbon The microstructure shall not contain flake graphite. 3.2.2 blackheart and pearlitic malleable iron castings The microstructure of black
16、heart malleable iron casting has a matrix essentially of ferrite. The micro- structure of pearlitic malleable iron castings has a matrix, according to the grade specified, of pearlite or other transformation products of austenite. Graphite is present in the form of temper carbon nodules. The microst
17、ructure shall not contain flake graphite. 3.3 Designation The types of malleable iron castings covered by this Standard shall be designated as follows: a) The types of malleable iron castings are designated by a letter string as follows. FCMW for whiteheart malleable iron castings FCMB for blackhear
18、t malleable iron castings FCMP for pearlitic malleable iron castings This designation shall be followed by one space. The minimum tensile strength given by the test piece with 12 mm diameter shall be designated using two figures, which can be obtained by dividing the value measured with the unit of
19、N/mm2 by ten. For instance, if the minimum tensile strength is 350 N/mm2, the designation would become 35. These figures shall be followed by a hyphen (-1. The minimum elongation shall be designated with two figures given by the test piece with 12 mm diameter. If the minimum elongation is less than
20、10 %, a naught (O) should be prefixed. For instance, if it is 4 %, the designation should be 04, and if 12 %, the designation be 12. Example of actual designation b) c) When the test piece of whiteheart malleable iron castings, measuring 12 mm in diameter, is measured 400 N/mm2 of the minimum tensil
21、e strength and measured 5 % minimum elongation, the designation shall be as follows. FCMW 40-05 4 Production The method of producing malleable iron castings and its chemical composition and heat treatment are left to the discretion of the manufacturer, and he/she shall ensure compliance with the pro
22、perty requirements given in this Stan- dard for the grade required in the order. However, for malleable iron castings to be used in special applications, the chemical composition and heat treatment may be the subject of agreement between the par- ties concerned with delivery. , Copyright Japanese St
23、andards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/12/2007 20:52:30 MDTNo reproduction or networking permitted without license from IHS -,-,- STD-JIS G 5705-ENGL 2000 4933b08 0567239 L3T m Division of draft Classification
24、 Tolerance . Outside Inside Accurate class Ordinary class Accurate class Ordinary class w100 31100 31100 51100 3 G 5705 : 2000 Table 1 Tolerance on dimension unit: mm Division Dirnen- Wall Accurate sional thickness toler- ance Ordinary Length Accurate class ordinary I b) The tolerance on draft shall
25、 be as mecified in Table 2. 7 Mechanical property The mechanical properties of the test piece prepared from malleable iron castings shall be in accordance with the values listed in Table 3 and Table 4. The proof stress of 0.2 T O shall be determined only when purchaser required in the order. Copyrig
26、ht Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/12/2007 20:52:30 MDTNo reproduction or networking permitted without license from IHS -,-,- STDmJIS G 5705-ENGL 2000 4933b08 0567240 951 Tensile strength (4)
27、 N/mm2 min. 4 G 5705 : 2000 0.2 % proof Elonga stress tion N/mm2 min. % min. The Brinell hardness values in the Table are for information only. If they are considered to be mandatory, this shall be agreed between the parties concerned with delivery, based on the values listed in Table 3 and Table 4.
28、 Designation Table 3 Mechanical properties of whiteheart malleable iron castings Diameter of test piece (9 FCMW 38-07 _._._ FCMW 35-04 6 (less than 5) 10 (5 or over to and excl. 9) 12 (9 or more) . 9 12 15 ?CMW 38-12 (5) 360 400 420 WMW 40-05 200 8 220 5 230 4 ?CMw 45-07 (main size mm) B (2) I 9 12
29、1 5 9 12 15 9 12 15 340 - 350 - 360 - 350 - 185 370 200 380 320 170 380 200 400 210 -. - - -. . ._._._. _ ._. _._ Hardnesi HB max. 230 220 220 (3) For whiteheart malleable iron castings, the test piece diameter should have the closest possible relationship to the section thickness of the casting. Th
30、e test piece diameter should be agreed between the parties concerned with delivery. Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/12/2007 20:52:30 MDTNo reproduction or networking permitted witho
31、ut license from IHS -,-,- STD.JIS G 5705-ENGL 2000 4933608 0567243 898 m Designation A(7) B (7) FC-FB.2710 5 G 5705 : 2000 Diam. Tensile 0.2 % Elonga- Hardness Charpy absorbed oftest strength proof tion energy piece stress mm N/mmz N/mm2 % I Mean of Each HB 3 pieces value min. mia. min. (8) (9) (9)
32、(14) J J 5 163 max. - - ._ _. 120r 15 270 165 .-_._. Table 4 Mechanical properties of blackheart malleable iron castings and pearlitic malleable iron castings FCMP 45-06 12or15 450 270 6 150to200 - - - FCMP. 49-04 -_. 12or15 . . . _._. _. 490 . . . -. 305 _ 4 1 5 ! . t 0 2 2 ? . - FCMP 50-05 12or15
33、500 300 5 160t.0220 - - I FCMP 55-04 12or15 550 340 4 180t.0230 - - - FCMPS9:03 _ 120r ._._ 15 _. 590 _. -_ 390 _ 3 2o!-tO.?s9 - FCMP 65-02 FCMP 60-03 12or15 600 390 3 200to250 - - - 12or15 650 430 2 210to260 - I FCMP80-01(=) I 120r 15 1 800 I 600 I 1 /270to310 1 - 1 - FCMP 70-02 (2) (3) Notes (7) T
34、he designation in A column shows the grade which will continue on coming revision, and B column shows the grade to be discussed about integration in future. (8) Of the two diameters given for the test pieces, the manufacturer shall have the option of choosing either size if this is not specified by
35、the purchaser. (9) 1 N/mm2= 1 MPa (10) Grade FCMB 30-06 is intended particularly for applications in which pressure tightness is more important than a high degree of strength or ductility. (19 Grade FCMB 35-10s is intended particularly for applications in which shock resistance is important, and her
36、e impact strength is specified. (12) Oil quenched and subsequently tempered. (13) If this material is air quenched and subsequently tempered, the 0.2 % proof stress shall be 430 N/mm2 min. (14) Proof stress shall be judged when permanent elongation is 0.2 %, but total elon- gation of 0.5 % under loa
37、d may be available. -_-.-._._.-.-.- _._-_._-._- . . . _._._ _ ._._ _. . ._._._._.-._. _._._._._._ _._._._._ _._._._ ._._._._._. _._._._._._._._ ._ ._._-_. _._._._._-_-.- . .-.-_._-._-.-.-.- ._._._._ 12or15 700 530 2 240to290 - - Copyright Japanese Standards Association Provided by IHS under license
38、with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/12/2007 20:52:30 MDTNo reproduction or networking permitted without license from IHS -,-,- STD*JIS G 5705-ENGL 2000 4933b08 0567242 724 Main wall thickness mm Less than 5 5 or over to and excl. 9 Amount of residual carbo
39、n % 0.6 max. 0.8 max. 6 G 5705 : 2000 9 or over to and excl. 15 1 . 6 max. 8 . 3 The analysis for the residual carbon shall be performed for the material to which brazing or welding is to be applied and only when the purchaser makes an appoint- ment. ._._._ _._.-.-.-.- _._._._._. _-._ _._._._ ._-_._
40、._. _.-_._-_._._-.- -.-_._._-_ _._-. . ._-_._. . . . -. . - -. - -. 9 Mechanical test and other tests 9.1 Tensile test Follow JIS Z 2241. For the strain measurement to get total elongation under load a divider can be employed. ._ _._._._ * _ _._. . . ? _._. .-._._ _ ._.-. _ ._-. _ . -. Test pieces s
41、hall be the test bars prepared as described in 10. Remarks : In case of grades with an apparent (natural) yield point, it is ad- visable to determine the yield strength(15) instead of the 0.2 % proof stress subject to the following conditions: The test piece shall not be prestressed. In the case of
42、the continuous loading procedure, the loading velocity shall not exceed 2 N/mm2*s, in the range from 0.5 times the yield point to 1.2 times the yield point. In the case of the procedure with repeated unloading, a rest time of 0.5 min per load level shall apply. Note (15) For further information on t
43、he determination of yield strength of mal- leable iron castings, see CIATF-Report No. 2. The report can be ob- tained from CIATF Secretariat, Verein Deutscher Giessereifachleute, Sohnstrasse 70, D-4000, Dsseldorf, Germany, F.R. 9.2 Brinell hardness test The Brinell hardness test, when specified by t
44、he pur- chaser, follow JIS Z 2243. This test shall be carried out on test pieces or at point(s) on the casting as agreed between the parties concerned with delivery. Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie No
45、t for Resale, 03/12/2007 20:52:30 MDTNo reproduction or networking permitted without license from IHS -,-,- . STD-JIS G 5705-ENGL 2000 4933608 0567243 660 7 G 5705 : 2000 9.3 Impact test For impact test 2. use No. 3 test piece specified in JIS Z 2202. Test method shall be according to “Test by Charp
46、y impact tester” specified in JIS Z 2242. Set the temperature for test at (23 +- 5) OC. When it is used at lower tempera- ture . than -10 O C Y however, set the temperature at the lowest temperature at which it . is used I and press the degree of the test temperature on the products. . . . 9.4 Hamme
47、ring test Test the malleable iron casings by means of hammering and . examine the condition of thermal treatment 1 the P resence of cavity cracking-,. and other defects. 2 . . ? . . 9.5 Destructive test Carry out destructive test of malleable iron castings as speci- fied in respective standards, and in other cases than above pick up a test sample from the batch of products with the same shape and same grade, break it, and check the condition of destru