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1、J I S Z*3154 93 4933608 O512624 285 UDC 621.791.053.22:620.192.46 IS JAPANESE INDUSTRIAL STANDARD , a a a Method of controlled thermal severity weld cracking test Translated and Published by Japanese Standards Association 5s Printed in Japan Copyright Japanese Standards Association Provided by IHS u
2、nder license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/11/2007 00:20:28 MSTNo reproduction or networking permitted without license from IHS -,-,- I J I S Z*3L54 93 m 4933608 05L2b25 ILL m In the event of any doubt arising, the original Standard in Japanese is to
3、 be final authority. t - -h Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/11/2007 00:20:28 MSTNo reproduction or networking permitted without license from IHS -,-,- J I S Z*3l154 93 = 4933608 05l
4、12b2b 058 = u Q UDC 621.791.053.22:620.192.46 I IL JAPANESE INDUSTRIAL STANDARD J I S Method of controlled thermal severity Z 3154-1993 weld cracking test 1. trolled thermal severity weld cracking test for detecting cold cracking generated in the heat-affected zone of the welds of carbon steel and l
5、ow alloy steel by shielded metal arc welding, gas shielded arc welding and self-shielded arc welding Scope This Japanese Industrial Standard specifies the method of con- Remarks: The standards cited in this Standard are shown in Attached Table 1. 2. Test plates 2.1 test plates shall conform to Fig.
6、1. Shape and dimensions of test plates The shape and dimensions of the Fig. 1. Shape and dimensions of test plates Unit: mm l,A 175 where, t : thickness of the upper plate b : thickness of the lower plate 2.2 (1) Preparation method of test plates The edge surface of the upper plate to be test-welded
7、 shall be machined (In the case of thermal-cut , shave off the heat-affected zone), and the other edges may be saw-cut or thermal-cut. Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/11/2007 00:20:
8、28 MSTNo reproduction or networking permitted without license from IHS -,-,- J I S Z*3154 73 = 4733b08 05i12b27 T94 2 Z 3154-1993 (2) The contact surface between the upper plate and the lower plate and the surface of the lower plate to be test-welded shall be machined slightly. The test plates shall
9、 be prepared in such a manner that the upper plate and the lower plate are fixed by an appropriate method, then 2-pass welding shall be made for restraint by using the same material as the welding material to be used in the test as shown in Fig. 2. (3) 3. Test method 3.1 Welding of test plates (1) T
10、he test plate shall be prepared by using the steel products specified in JIS G 3101, JIS G 3103, JIS G 3106, JIS G 3126, JIS G 4051 and JIS G 4109 or steel products equivalent thereto. (2) The welding material to be used in the test shall be in general, the covered electrode, the gas shielded arc we
11、lding wire, and the self- shielded arc welding wire as specified in JIS Z 3211, JIS Z 3212, JIS Z 3223, JIS Z 3241, JIS Z 3312, JIS 2 3313, JIS Z 3316, JIS Z 3317, JIS Z 3318 and JIS Z 3325. (3) After cooling the test plates perfectly to room temperature, and holding it on a suitably heat-insulated
12、jig, make the test welding in flat position. For test welding, first weld test bead 1 as shown in Fig. 2, cool the test plates perfectly to room temperature in a windless atmosphere, and then weld test bead 2. (4) Fig. 2. Restraint welding and test bead welding method (Example of using bolts to fix
13、the upper and lower plates) Unit: mm Test bead 2 Restraint weld /Test bead III I I II ! II I Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/11/2007 00:20:28 MSTNo reproduction or networking permit
14、ted without license from IHS -,-,- J I S Z*3354 93 4933608 0532628 920 = 3.2 t a P (3) 3 Z 3154-1993 Inspection of cracks After at least 48 h after test welding, three respective test specimens (six specimens in total) shall be cut out by machining at the position specified in Fig. 3 for two test we
15、ldings. lower plates are thick, these plates may be cut in the range as shown in Fig. 3. When the upper and the Fig. 3. Cutting out method of test specimens (Broken lines show the cutting sections) Unit: mm 175 zr 75 -iss, Measuring surface Approx. 25 Approx. 25 .c, I -1 r- Ei m Polish each measurin
16、g surface and examine for cracks at the heat- affected zone and their lengths under approximately 15 magnifications. An appropriate corrosive treatment may be performed for detecting cracks. Calculate the crack ratio for the upper and the lower plates re- spectively from the following formulae: c, =
17、x 100 s 2 where, cl, c,: crack ratio of the upper and the lower plates (%I Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/11/2007 00:20:28 MSTNo reproduction or networking permitted without licens
18、e from IHS -,-,- J I S Z*3L54 93 m 4933b08 05L2b29 867 = 4 Z 3154-1993 LI, zh: aggregate length of cracks as shown in Fig. 4 (mm) SI, S : dimension as shown in Fig. 4 (mm) Fig. 4. Aggregate length of cracks Upper plate e Crack length CLz Lower plate 4. Records After completion of the test, the follo
19、wing items shall be recorded : (1) (2) (3) Welding method (4) (5) Condition of welding (6) (7) (8) Kind of the material of the upper and the lower plates Thickness of the upper and the lower plates Kind and dimensions of welding material Temperature and humidity of welding place Method of the examin
20、ation on cracking Results of the examination on cracking Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/11/2007 00:20:28 MSTNo reproduction or networking permitted without license from IHS -,-,- J
21、IS Z*3l154 93 W 4933b08 0532630 589 W Standard No. JIS G 3101 JIS G 3103 JIS G 3106 JIS G 3126 JIS G 4051 JIS G 4109 JIS Z 3211 JIS Z 3212 JIS Z 3223 JIS Z 3241 JIS Z 3312 JIS Z 3313 JIS Z 3316 JIS Z 3317 JIS Z 3318 JIS Z 3325 5. Z 3154-1993 Attached Table 1. Cited standards Title Rolled steel for g
22、eneral structure Carbon steel and molybdenum alloy steel plates for boilers and other pressure vessels Rolled steels for welded structure Carbon steel plates for pressure vessels for low temperature service Carbon steels for machine structural use Chromium-molybdenum alloy steel plates for boilers a
23、nd pressure vessels Covered electrodes for mild steel Covered electrodes for high tensile strength steel Molybdenum steel and chromium molybdenum steel covered electrodes Covered electrodes for low temperature service steel MAG welding solid wires for mild steel and high strength steel Arc welding f
24、lux cored wires for mild steel and high strength steel TIG welding rods and wires for mild steel and low alloy steel MAG welding solid wires for molybdenum steel and chromium molybdenum steel MAG welding flux cored wires for molybdenum steel and chromium molybdenum steel MAG welding solid wires for
25、low temperature service steel Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/11/2007 00:20:28 MSTNo reproduction or networking permitted without license from IHS -,-,- Z 3154-1993 Edition 1 Japane
26、se Text Established by Minister of International Trade and Industry Date of Establishment: 1962-03-01 Date of Revision: 1993-02-01 Date of Public Notice in Official Gazette: 1993-02-19 Investigated by: Japanese Industrial Standards Committee Divisional Council on Welding This English translation is
27、published by: Japanese Standards Association 1-24, Akasaka 4, Minato-ku, O JSA, 1993 Tokyo 107 Japan Printed in Tokyo by Hohbunsha Co., Ltd. Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/11/2007 00:20:28 MSTNo reproduction or networking permitted without license from IHS -,-,-