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1、JIS JAPANESE I NDUSTRIAL STA N DA R D Translated and Published by Japanese Standards Association JIS G 4109:20*3 Chromium-molybdenum alloy steel plates for boilers and pressure vessels ICs 77.140.20; 77.140.30; 77.140.50 Reference number : JIS G 4109 : 2003 (E) PROTECTED BY COPYRIGHT 9s Copyright Ja
2、panese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/14/2007 19:59:32 MDTNo reproduction or networking permitted without license from IHS -,-,- G 4109 : 2003 Foreword This translation has been made based on the ori
3、ginal Japanese Industrial Standard revised by the Minister of Economy, Trade and Industry through deliberations at the Japanese Industrial Standards Committee, as the result of proposal for revision of Japanese Industrial Standard submitted by The Japan Iron and Steel Federation (JISF) with the draf
4、t being attached, based on the provision of Article 12 Clause 1 of the Industrial Standardization Law applicable to the case of revision by the provision of Article 14. Consequently JIS G 4109 : 1987 is replaced with this Standard. In this revision it is revised to correspond to the newest technolog
5、y development and to the market demands: for example, to make the thickness allowance of plate more strict to match JIS G 3193, to reexamine the chemical composition restriction with a mind to match ASTM A 387, which corresponds to the this Standard, and so on. Attention is drawn to the possibility
6、that some parts of this Standard may conflict with a patent right, application for a patent after opening to the public, utility model right or application for registration of utility model after opening to the public which have technical properties. The relevant Minister and the Japanese Industrial
7、 Standards Committee are not responsible for identifying the patent right, application for a patent after opening to the public, utility model right or application for registration of utility model after opening to the public which have the said technical properties. Date of Establishment: 1974-03-0
8、1 Date of Revision: 2003-05-20 Date of Public Notice in Official Gazette: 2003-05-20 Investigated by: Japanese Industrial Standards Committee Standards Board Technical Committee on Iron and Steel JIS G 4109 : 2003, First English edition published in 2003-11 Translated and published by: Japanese Stan
9、dards 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 authority. O JSA 2003 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form
10、or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from the publisher. Printed in Japan PROTECTED BY COPYRIGHT Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bern
11、ie Not for Resale, 03/14/2007 19:59:32 MDTNo reproduction or networking permitted without license from IHS -,-,- G 4109 : 2003 Contents Introduction . 1 2 3 4 4.1 4.2 5 6 7 8 9 9.1 9.2 9.3 9.4 9.5 10 Scope Normative references Classification, strength divisions and symbols Chemical composition . Pro
12、duct analysis value . Austenitic grain size . Mechanical properties . Shape, dimensions, mass and tolerances thereon . Ladle analysis value . Appearance . Manufacturing method and heat treatment . Designation of heat treatment Heat treatment for steel plates Symbol for heat treatment . Manufacturing
13、 method . Heat treatment for test piece Tests . 10.1 Analytical tests 10.2 Mechanical tests 10.3 Austenitic grain size test . 11 Inspection 12 Retest . 13 Marking . 14 Report Attached Table 1 Normative references Annex (normative) Upper limits of alloy elements other than the specification 1 1 1 1 2
14、 2 2 2 3 5 6 6 6 6 6 7 7 8 8 8 9 9 9 9 10 11 12 PROTECTED BY COPYRIGHT Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/14/2007 19:59:32 MDTNo reproduction or networking permitted without license fr
15、om IHS -,-,- JIS G 4109 : 2003 JAPANESE INDUSTRIAL STANDARD Symbol of classification Chromium-molybdenum alloy steel plates for boilers and pressure vessels Strength division Applied thickness mm Introduction This Japanese Industrial Standard has been prepared to correspond to the newest technology
16、development and to the market demands: for example, to make the thickness allowance of plate more strict to match JIS G 3193, to reexam- ine the chemical composition restriction with a mind to match ASTM A 387-99 Pressure vessel plates, Alloy Steel, Chromium-Molybdenum, which corresponds to the this
17、 Standard, and so on. 1 Scope This Standard specifies hot-rolled chromium-molybdenum steel plates (hereafter referred to as “steel plates”) to be used for boilers and pressure vessels, excluding those to be used at low temperature. 2 Normative references The standards listed in Attached Table 1 cont
18、ain pro- visions which, through reference in this Standard, constitute provisions of this Standard. The most recent editions of the standards (including amendments) shall be applied. 3 Classification, strength divisions and symbols The classification, strength divisions and symbols of steel plates s
19、hall be as follows: a) Symbols of classification Steel plates shall be classified into six classifca- tions, and the classification symbols shall be as given in Table 1. Strength division Steel plates of each classification symbol specified in a) shall be further divided into two divisions depending
20、 upon mechanical proper- ties. Those with lower tensile strength shall be designated as strength divi- sion 1 and those with higher shall be designated as strength division 2, and the classification symbol shall be followed by “-1” and “-2”, respectively. b) Table 1 Symbol of classification and stre
21、ngth division K-i SCMV 3 SCMV 4 6 and over up to and incl. 300 ” SCMV 6 2 PROTECTED BY COPYRIGHT Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/14/2007 19:59:32 MDTNo reproduction or networking pe
22、rmitted without license from IHS -,-,- 2 G 4109 : 2003 Symbol of C Si Mn P S classifica- tion SCMV 1 0.21 max. 0.40 max. 0.55 to 0.80 0.030 max. 0.030 max. 4 Chemical composition Cr Mo 0.50 to 0.80 0.45 to 0.60 4.1 the ladle analysis value shall be as given in Table 2. as given in Annex (normative).
23、 Ladle analysis value Steel plates shall be subjected to the test of 10.1, and Further, upper limits of alloy elements other than specified in Table 2 shall be SCMV 3 SCMV 4 SCMV 5 SCMV 6 0.17 max. 0.50 to 0.80 0.40 to 0.65 0.030 max. 0.030 max. 1.00 to 1.50 0.45 to 0.65 0.17 max. 0.50 max. 0.30 to
24、0.60 0.030 max. 0.030 max. 2.00 to 2.50 0.90 to 1 . 1 0 0.17 max. 0.50 max. 0.30 to 0.60 0.030 max. 0.030 max. 2.75 to 3.25 0.90 to 1.10 0.15 m a . 0.50 max. 0.30 to 0.60 0.030 max. 0.030 max. 4.00 to 6.00 0.45 to 0.65 SCMV 2 1 0.17 max. 1 0.40 max. 1 0.40 to 0.65 I 0.030 max. 10.030 max. I 0.80 to
25、1.15 I 0.45 to 0.60 1 SCMV 5 SCMV 6 0.17 max. 0.50 max. 0.27 to 0.63 0.030 max. 0.030 max. 2.63 to 3.37 0 . 8 5 to 1.15 0.15 max. 0.55 m a . 0.27 to 0.63 0.030 max. 0.030 max. 3.90 to 6.10 0.40 to 0.70 4.2 test of 10.1 shall be carried out, and the value shall be as given in Table 3. Annex (normativ
26、e). Product analysis value When required by the purchaser, the product analysis Further, the alloy elements other than specified in Table 3 shall be as given in 5 Austenitic grain size As a result of test carried out in accordance with 10.3, the austenitic grain size number of steel plates of SCMV 1
27、 shall be 1 to 5. PROTECTED BY COPYRIGHT Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/14/2007 19:59:32 MDTNo reproduction or networking permitted without license from IHS -,-,- 3 G 4109 : 2003 1
28、8 min. 22 min. 19min. 22min. 18 min. 18 min. 18 min. 6 Mechanical properties The mechanical properties shall be as follows: a) b) The purchaser shall designate either strength division 1 or strength division 2. Steel plates designated as strength division 1 shall be tested in accordance with 10.2 an
29、d its mechanical properties shall be as given in Table 4. When subjected to bend test, they shall show no cracks on the outside of the bent part. The bend test may be omitted, unless particularly specified by the pur- chaser. Steel plates designated as strength division 2 shall be tested in accordan
30、ce with 10.2 and its mechanical properties shall be as given in Table 5. When subjected to bend test, they shall show no cracks on the outside of the bent part. The bend test may be omitted, unless particularly specified by the pur- chaser. c) - - - - 45 min. 45 min. 45 min. Table 4 SCMV4 SCMV5 SCMV
31、6 scMvl I 225min- 205 min. 205 min. 205 min. scMv2 I 225 min. I Mechanical properties of strength division 1 Tensile strength N/mm2 380 to 550 380 to 550 410 to 590 410 to 590 410 to 590 410 to 590 18 min. 22 min. Test piece No. 1A No. 10 No. 1A No. 10 No. 1A No. 10 No. 10 No. 10 No. 10 - Bend angle
32、 180“ - 180 Bend Inside radius 25 mm or under in thickness: 0.75 x thickness Over 25 mm up to and incl. 100 mm in thickness: Over 100 mm in thickness: 1.0 x thickness 1.25 x thickness 25 mm or under in thickness: 1.0 x thickness Over 25 mm up to and incl. 50 mm in thickness: 1.25 x thickness Over 50
33、 mm up to and incl. 100 mm in thickness: Over 100 mm in thickness: 1.5 X thickness 1.75 X thickness 3emarks 1 No. 1A test piece shall be used for steel plates of SCMV 1, SCMV 2 and SCMV 3 of 50 mm or under in thickness and No. 10 test piece for those over 50 mm in thick- ness, However, for steel pla
34、tes over 40 mm in thickness, No. 10 test piece may be used. When steel plates of SCMV 4, SCMV 5 and SCMV 6 are too thin in thickness to take the No. 10 test pieces, the test pieces similar to No. 10 in which the gauge length is four times the diameter of parallel portion shall be used. Further, for
35、steel plates 20 mm or under in thickness, No. 1A test pieces may be used. In this case, the gauge length for the measurement of elongation shall be 50 mm, and the elongation shall be measured including the ruptured part. When No. 1A test pieces are used, the reduction of area shall be subtracted by
36、5 % from the value of reduction of area given in Table 4. 2 PROTECTED BY COPYRIGHT Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/14/2007 19:59:32 MDTNo reproduction or networking permitted withou
37、t license from IHS -,-,- 4 G 4109 : 2003 Yield point or Tensile Elonga- proof stress strength tion N/mm2 N/mmz % 315min. 480to620 18min. 22 min. Symbol of classi- fication Reduc- tion % - - SCMV 1 SCMV 2 275min. 315 min. SCMV 3 450to590 19min. - 22 min. - 520to690 18min. - 22 min. - SCMV 4 SCMV 5 SC
38、MV 6 315 min. 315 min. 3 The elongation of No. 1A test pieces of steel plates of SCMV 1, SCMV 2 and SCMV 3 under 8 mm in thickness shall be subtracted by 1 % from the value given in Table 4 for each decrease of 1 mm or its fraction in thickness. When the elongation of No. 1A test pieces of steel pla
39、tes of SCMV 1, SCMV 2 and SCMV 3 under 20 mm in thickness is equal to or more than the value obtained by subtracting 3 from the specified value given in Table 4, and if the value of elon- gation including the ruptured part in 50 mm gauge length ia 25 % or over, the product shall be accepted irrespec
40、tive of the specification in Table 4. The elongation of No. 10 test pieces of steel plates over 90 mm in thickness shall be subtracted by 0.5 % from the values given in Table 4 for each increase of 12.5 mm or its fraction in thickness. However, the limit of subtraction shall be 3 %. 4 5 520 to 690 1
41、8 min. 45 min. 520 to 690 18 min. 45 min. Table 5 Mechanical properties of strength division 2 315 min. I 520 to 690 1 18 min. I 45 min. piece Test k-z No. 1A No. 10 angle 180“ No. 1A No. 10 No. 10 180“ 1 Bend Inside radius 25 mm or under in thickness: 0.75 x thickness Over 25 mm up to and incl. 100
42、 mm in thickness: Over 100 mm in thickness: 1.0 x thickness 1.25 x thickness 25 mm or under in thickness: 1.0 x thickness Over 25 mm up to and incl. 50 mm in thickness: 1.25 x thickness Over 50 mm up to and incl. 100 mm in thickness: Over 100 mm in thickness: 1.5 X thickness 1.75 x thickness Remarks
43、 1 No. 1A test piece shall be used for steel plates of SCMV 1, SCMV 2 and SCMV 3 of 50 mm or under in thickness and No. 10 test piece for those over 50 mm in thickness. However, for steel plates over 40 mm in thickness, No. 10 test piece may be used. When steel plates of SCMV 4, SCMV 5 and SCMV 6 ar
44、e too thin in thickness to take the No. 10 test pieces, the test pieces similar to No. 10 in which the gauge length is four times the diameter of parallel portion shall be used. Further, for steel plates 20 mm or under in thickness, No. 1A test pieces may be used. In this case, the gauge length for
45、the measurement of elongation shall be 50 mm, and the elongation shall be measured including the ruptured part. When No. 1A test pieces are used, the reduction of area shall be subtracted by 5 % from the value of reduction of area given in Table 5. The elongation of No. 1A test pieces of steel plate
46、s of SCMV 1, SCMV 2 and SCMV 3 under 8 mm in thickness shall be subtracted by 1 % from the value given in Table 5 for each decrease of 1 mm or its fraction in thickness. 2 3 PROTECTED BY COPYRIGHT Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1
47、111111001, User=Wing, Bernie Not for Resale, 03/14/2007 19:59:32 MDTNo reproduction or networking permitted without license from IHS -,-,- 5 G 4109 : 2003 Width Thickness 4 When the elongation of No. 1A test pieces of steel plates of SCMV 1, SCMV 2 and SCMV 3 under 20 mm in thickness is equal to or
48、more than the value obtained by subtracting 3 from the specified value given in Table 5, if the value of elon- gation including the ruptured part in 50 mm gauge length is 25 % or over, the product shall be accepted irrespective of the specification in Table 5. The elongation of No. 10 test pieces of steel plates over 90 mm in thickness shall be subtracted by 0.5 % from the values given in Table 5 for each increase of 12.5 mm or its fraction in thickness. However, the limit of subtraction shall be 3 %. 5 Under 1600 1600 and over to and excl. 2 O00 7 Shape, dimensions, mass