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1、IS JAPANESE INDUSTRIAL STANDARD Translated and Published by Japanese Standards Association Magnesium alloy castings ICs 77.150.20 Descriptors : magnesium alloys, non-ferrous alloys, light alloys, castings Reference number : JIS H 5203 : 2000 (E) Copyright Japanese Standards Association Provided by I
2、HS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/14/2007 07:19:10 MDTNo reproduction or networking permitted without license from IHS -,-,- H 5203 : 2000 Foreword This translation has been made based on the original Japanese Industrial Standard revised
3、 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 H 5203 : 1992 is replaced with JIS H 5203 : 2000. In this revision, an emphasis is placed on achievement o
4、f conformation of Japanese Industrial Standard with International Standard, and all specified contents of the corresponding International Standard are adopted, and contents of the classes, symbols, shapes, dimensions, mass, inspection and markings of the former Japanese Industrial Standard are added
5、 and integrated. Date of Establishment: 1958-04-26 Date of Revision: 2000-06-20 Date of Public Notice in Official Gazette: 2000-06-20 Investigated by: Japanese Industrial Standards Committee Divisional Council on Non-Ferrous Metals TIS H 5203: 2000, First English edition published in 2001-06 Transla
6、ted and published by: Japanese Standards Association 4-1-24, Akasaka, Minato-ku, Tokyo, 107-8440 JAPAN In the event of any doubts arising as to the contents, the original JIS is to be the final authoiity. O JSA2001 All rights reserved. Unless otherwise specified, no part of this publication may be r
7、eproduced 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 with JSALicensee=IHS Employees/1111111001, User
8、=Wing, Bernie Not for Resale, 03/14/2007 07:19:10 MDTNo reproduction or networking permitted without license from IHS -,-,- JAPANESE INDUSTRIAL STANDARD Magnesium alloy castings JIS H 5203 : 2000 Introduction This Japanese Industrial Standard has been prepared, without changing technical contents by
9、 conforming the corresponding parts to the corresponding Interna- tional Standards, based on three Standards : IS0 121 issued in 1980, Magnesium- aluminium-zinc alloy ingots and alloy castings-Chemical composition and mechanical properties of sand cast reference test bars, IS0 2377 issued in 1972, M
10、agnesium alloy sand castings-Reference test bar, and IS0 3115 issued in 1981, Castings in magnesi- um alloys containing zirconium-Chemical composition and mechanical properties. The contents of the classes and symbols, shapes, dimensions and mass, inspection and markings which have been conventional
11、ly specified in Japanese Industrial Standards are additively specified. 1 Scope This Japanese Industrial Standard specifies the magnesium alloy castings (hereafter referred to as “castings”) of sand mold castings, metal mold castings, preci- sion castings or the like. Remarks The International Stand
12、ards corresponding to this Standard are shown as follows. IS0 121 Magnesium-aluminium-zinc alloy ingots and alloy castings- Chemical composition, and mechanical properties of sand cast reference test bars IS0 2377 Magnesium alloy sand castings-Reference test bar IS0 3 11 5 Castings in magnesium allo
13、ys containing zirconium-Chemi- cal composition and mechanical properties 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 standards indicated below shall be applied. JI
14、S B 0403 Cas tings-System of dimensional tolerances and machining allow- ances Aluminium, magnesium and their alloys-Temper designa tion General rules for inspection of non-ferrous metal materials General rules for chemical analysis of magnesium alloys Methods for determination of aluminium in magne
15、sium and magnesi- um alloys JIS H 0001 JIS H 0321 JIS H 133 1 JIS H 1332 JIS H 1333 Methods for determination of zinc in magnesium and magnesium al- loys Methods for determination of manganese in magnesium and magnesi- um alloys JIS H 1334 Copyright Japanese Standards Association Provided by IHS und
16、er license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/14/2007 07:19:10 MDTNo reproduction or networking permitted without license from IHS -,-,- 2 H 5203 : 2000 Class Symbol Correspond- ing IS0 sym- hnl JIS H 1335 Classifica- Informative reference tion of mold I
17、Corresponding I Characteristics of alloy I Example of use JIS H 1336 class 1 Precision toughness. Poor casta- TV camera parts, weav- bility. Suitable for rela- tively simple shapes. like. ing machine parts or the Casting MCZC - Sand mold AZ9lC Good toughness with Castings for general use, class 2C M
18、etal mold good castability. Suitable crank case, transmission Precision for pressure resisting case, gear box, TV camera parts, jig for tools, motor castings. Casting MCZE - Sand mold AZ91E Better corrosion resis- tools or the like. class 2E Metal mold tance than MCZA. Other Precision properties are
19、 equal to MCSA. Casting MC3 MgAl9Zn2 Sand mold AZ92A Good strength but poor Castings for general use, class 3 Metal mold toughness. Good casta- engine parts or the like. Casting MC5 - Sand mold AMlOOA Having strength and Castings for general use, class 5 Metal mold toughness. Suitable for engine par
20、ts or the like. Precision bility. Precision pressure resisting cast- ings. Casting MC6 MgZnBZr Sand mold ZK51A Applicable to when both High strength castings, class 6 strength and toughness wheel for racing cars or Casting MC7 MgZn6Zr Sand mold ZK61A Applicable to when both High strength castings, c
21、lass 7 strength and toughness inlet housing or the like. Casting MC8 - Sand mold EZ33A Having castability, Heat resisting castings, class 8 are required. the like. are required. weldability, and pressure engine parts, gear box, resistance. Low strength compressor case or the at normal temperature li
22、ke. but little drop in strength at high temperature. Casting MC9 MgAg3REZZr Sand mold QE22A Having strength, tough- Heat resisting castings, class 9 ness and good castability. pressure resisting hous- high temperature. Metal mold Precision Metal mold Precision Excellent strength at ings, gear box or
23、 the like. JIS H 1337 JIS H 1338 JIS H 1340 JIS H 1345 JIS Z 2201 JIS Z 2241 Methods for determination of silicon in magnesium and magnesium alloys Methods for determination of copper in magnesium and magnesium alloys Method for determination of nickel in magnesium and magnesium al- loys loys Method
24、s for determination of iron in magnesium and magnesium al- Method for determination of zirconium in magnesium alloys Method for determination of rare earths in magnesium alloys Test pieces for tensile test for metallic ma terials Method of tensile test for metallic materials 3 cording to chemical co
25、mposition. Classes and symbols The classes and symbols shall be as given in Table 1 ac- I I“- I a i i o y I Casting (MC1 I - ISand mold I AZ63A /Having strength and ICastings for general use, Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/111111
26、1001, User=Wing, Bernie Not for Resale, 03/14/2007 07:19:10 MDTNo reproduction or networking permitted without license from IHS -,-,- 3 H 5203 2000 :orrespond- ng Is0 sym- io1 dgZn4REZr - - - dgAl6Zn3 dgAl8Znl 4gA18Zn bgAl9Zn 4gRE2Zn2Zr I Table 1 Class and symbol (concluded) Classifica- tion of mold
27、 Sand mold Precision Sand mold Metal mold Precision Sand mold Metal mold Precision Sand mold Metal mold Precision Sand mold Sand mold Sand mold Sand mold Metal mold Sand mold class 10 Casting class 11 :orresponding S T M alloy ZE41A ZC63A WE43A WE54A - - - - - + Casting Informative reference Charact
28、eristics of alloy Example of use Having castability, Pressure resisting cast- weldability and pressure ings, heat resisting resistance. Low drop in strength at high tem- like. perature. Having similar charac- teristics to MCi0. the like. Castability is equal. Can be used at 200 M or Parts for aerosp
29、ace, higher. When held at high temperature for long time, little strength drops. The highest strength at Parts for racing cars es- high temperature, among pecially cylinder block, the existing magnesium head and valve cover or alloys. the like. The constituent ranges of Castings for general use. Al
30、and Zn are broader than MCi. It is not necessary to specify the ranges of con- stituents strictly in order to conform to various uses. An alloy of which the constituent range is more controlled than that of MgAlSZnl. The constituent ranges of Castings for general use. Al and Zn are broader than thos
31、e of MC2C. The constituent range of Heat resisting casting Zn is broader than that of parts. MC8. housings, gear box or the Cylinder block, oil pan or transmission of helicop- ter or the like. Castings for general use. class 12 Casting class 13 r IS0 class 1 IS0 class Casting IS0 class IS0 class 3 I
32、S0 class 4 lymbol - IC10 - IC11 - IC12 - IC13 4 Quality Quality of castings shall be as follows. a) Quality of castings Castings shall be free from flaws, blow holes, inclusion or the like detrimental to use. Chemical composition The chemical composition shall be as given in Table 2. b) Copyright Ja
33、panese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/14/2007 07:19:10 MDTNo reproduction or networking permitted without license from IHS -,-,- 4 H 5203 : 2000 Table 2 Chemical composition Unit : % main- Ider 1.35
34、10.02 10.05 I - I - IRe- max. max. max. main- der 3.2 0.01 0.05 Re- - - max. max. max. main- der 3.2 0.01 0.05 - Re- - max. max. max. main- der 1.10 0.01 Re- max. max. max. main- der - 0.30 - Notes () RE indicates rare earth elements. (2) If the ratio in content of iron to manganese does not exceed
35、0.032, the content of iron may exceed 0.005 % as agreed upon between the pur- Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/14/2007 07:19:10 MDTNo reproduction or networking permitted without lic
36、ense from IHS -,-,- 5 H 5203 : 2000 chaser and the supplier. Remarks 1 When existence of detrimental impurities excepting those specified in this table is perceived, the permissible limit of the impurities may be specified as agreed upon between the purchaser and the supplier. RE of classes 8 and 10
37、 is principally cerium (Ce). RE of class 9 is added by Di : Didymium metal consists of not less than 70 % of neodymium (Nd) and praseodymium (Pr) for most of the remain- der. RES of classes 12 and 13 are principally neodymium (Nd) and heavy rare earth elements. 2 3 4 c) Mechanical properties The mec
38、hanical properties shall be as follows. i) Unless otherwise specified, the mechanical properties of the castings shall be represented by separate cast test pieces. When a tensile test is carried out in accordance with 6.2, the resulting mechani- cal properties shall conform to Table 3. 2) Table 3 Me
39、chanical properties lass Temper desig- Corre- Tensile test Informative reference l ) , 2) nation (3) sponding . Age hardening treatment rime Tempera- Time ISOsYm- Tensile Yield Elon- Solution treatment bol strength strength ture i t 6 I I I N/mm2 I Nmmz treatment after 391 3 min. 385 391 - - - 7 min
40、. 413 3) 418 2 min. - - 3 min. 413 3) 418 + 7 min. 413 3 ) 3 min. 413 3 ) 3 min. 413 3 ) -I-+ I I Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/14/2007 07:19:10 MDTNo reproduction or networking p
41、ermitted without license from IHS -,-,- 6 H 5203 2000 :lass Temper desig Corre- nation 3) sponding Tensile test IC3 -F Nimm2 Ascast MgAi9Zn2- 140 min. -T4 -T5 -T6 IC5 -F -T4 -T5 -T6 Ic6 -T5 M- Solution MgA9Zn2- 230 min treatment TB Age hardening 160 min treatment Age hardening MgAl9Zn2- 235 min trea
42、tment after TF solution treat- ment Ascast 140 min Solution 240 min treatment Age hardening 160 min treatment Age hardening 240 min treatment after solution treat- ment Age hardening MgZn5Zr- 235 min -T6 IC8 -T5 IC9 -T6 treatment Age hardening MgZn6Zr- 275 min. treatment after TF solution treat- men
43、t Age hardening 140 min treatment Age hardening MgAg 240 min treatment after RE2Zr-TF solution treat- IC11 -T6 IC12 -T6 IC13 -T6 - treatment - ZrITE Age hardening - 190 min treatment after solution treat- ment Age hardening - 220 min treatment after solution treat- ment Age hardening - 255 min treat
44、ment after solution treat- ment Ascast MgAl6Zn3- 160 min Solution treatment Age hardening treatment after solution treat- ment M MgAl8Zn- TB MgAl8Zn- TF Table 3 Mechanical properties (continued) - - Informative reference i), 2) Solution treatment Age hardening Yield strength Nlmm2 75 min. 75 min. El
45、on- gation % 1 min. 6 min. - treatn rempera- ture i 6 (U - I I Istrength empera- Ure f 6 (“cl - 407 4) daximum emperature (“cl - 413 80 min. 260 218 - 16 to 24 - 407 4) 110 min. 1 min. 413 70 min. 70 min. 80 min. - 16 to 24 - 16 to 24 - - 2 - 432 6 min. - 2 min. 424 3) - 232 232 - 424 3) - 432 110 m
46、in. 140 min. 4 min. 5 min. 4 min. 2 min. 177 5) 149 Itreatment ITE IC7 -T5 (Age hardening 1 1270 min. 180 min. - 502 180 min. 129 499 6) 100 min. 175 175 min. 525 7) 538 8 - 2 2 min. 2 min. 4 to 8 - 4 to 8 4 to 8 204 329 8) (ment IC10 -T5 IAge hardening lMgZn4RE 1200 min 135 min. 125 min. 170 min. 1
47、75 min. 440 7 527 7) 527 7) 16 - 16 - 16 2 min. 2 min. 200 250 250 445 535 2 min. 4 to 8 535 75 min. 3 min. - 330 I IM - IAscast IMgAl8Znl- 1140 min 75 min. - - 16 to 24 - I I M - IAscast IMgAl8Zn- 1140 min 75 min. 1 6 min. 2 min. - 413 413 75 min. 95 min. 230 min 235 min 418 330 Copyright Japanese
48、Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/14/2007 07:19:10 MDTNo reproduction or networking permitted without license from IHS -,-,- 7 H 5203 2000 Class Temper desig- Corre- Tensile test nation (3) sponding r IS0 sym- bol Tensile Yield Elon- strength strength gation N/mm2 N/mmz % MgAiSZn- 140 min. 75 min. 1 min. M MgAiSZn- 230min. 75min. 6min. - Ascast Solution treatment TB Age hardening MgAlSZn- 235 min. 110 min. 1 min. treatment after TF sol