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1、J IS JAPANESE I N D USTR IAL STANDARD Translated and Published by Japanese Standards Association Standard test for ultrasonic blocks testing * ICs 19.100 Descriptors : ultrasonic testing, calibration, test specimens, steels, flaw detection, Reference number : JIS Z 2345 : 2000 (E) weldability, testi
2、ng 12 s Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/15/2007 22:05:18 MDTNo reproduction or networking permitted without license from IHS -,-,- 2 234.5 : 2000 Foreword This translation has been
3、made based on the original Japanese Industrial Standard revised 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 2 2345 : 1994 is replaced with JIS Z 2345 :
4、 2000. In this revision, IS0 2400 : 1972 Welds in steel-Reference block for the calibration of equipment for ultrasonic examination and IS0 7963 : 1985 W e l d s in steel-Calibration block No. 2 for ultrasonic examination of welds have been used as the basis to prepare Japanese Industrial Standard c
5、onforming with the relevant International Standards. Attention is drawn to the possibility 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 th
6、e public which have technical properties. The relevant Minister and the Japanese Industrial 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 openi
7、ng to the public which have the said technical properties. Date of Establishment: 1973-10-01 Date of Revision: 2000-08-20 Date of Public Notice in Official Gazette: 2000-08-21 Investigated by: Japanese Industrial Standards Committee Divisional Council on Iron and Steel JIS Z 2345 : 2000, First Engli
8、sh edition published in 2001-03 Translated 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 authority. (B JSA2001 All rights reserved. Unless otherwise specifi
9、ed, 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 i n Japan Copyright Japanese Standards Association Provided by IHS under license with J
10、SALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/15/2007 22:05:18 MDTNo reproduction or networking permitted without license from IHS -,-,- STD-JIS Z 2345-ENGL 2000 D 9933bO 0570212 554 D JAPANESE INDUSTRIAL STANDARD JIS Z 2345 : 2000 Standard test blocks for ultrasonic test
11、ing Introduction This Japanese Industrial Standard was established in 1987 and re- vised in 1994, and has been revised again by taking conformity with the correspond- ing International Standard (IS0 2400 : 1972, Welds in steel-Reference block for the calibration of equipment for ultrasonic examinati
12、on) into consideration. The principal matters in this revision are as stated below. a) The heat treatment conditions and verification procedure (verification items and verification conditions) have been looked at again to conform the standard test blocks type Al with the corresponding reference bloc
13、ks of IS0 2400. STB-A32 has been newly added in standard test blocks type A3 series. The methods for indicating surface roughness and dimensional tolerances have been amended on all the standard test blocks. b) c) 1 Scope This Japanese Industrial Standard specifies the standard test blocks used for
14、calibrating and adjusting the ultrasonic test equipment and for adjusting the working sensitivity. Remarks 1 IS0 2400 : 1972 Welds in steel-Reference block for the calibration of equipment for ultrasonic examination 2 IS0 7963 : 1985 Welds in steel-calibration block No. 2 for ultrasonic examination
15、of welds 2 Normative references The following standards contain provisions which, through reference in this Standard, constitute provisions of this Standard. The normative references without the indication of the year of coming into effect apply limiting only to the most recent edition (including th
16、e amendment). JIS G 3106 Rolled steels for welded structure JIS G 4103 Nickel chromium molybdenum steels JIS G 4805 High carbon chromium bearing steels JIS K 2238 Machine oils JIS Z 2300 Glossary of terms used in nondestructive testing 3 Definitions For the purposes of this Standard, in addition to
17、the definitions specified in JIS Z 2300, the following principal definitions apply: a) standard test block type A2 series Standard test block type A2 series is a generic term for the standard test blocks of 3 kinds i.e., STB-AB, STB-A21 and STB-A22 which are used for adjusting the working sensitivit
18、y and measuring the overall performance characteristics of the ultrasonic test equipment (hereafter re- ferred as utest equipment”), etc. This is abbreviated to type A2 series STB. standard test block type A3 series Standard test block type A3 series is a generic term for the standard test blocks of
19、 4 kinds Le., STB-AS, STB-A31, STB- b) Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/15/2007 22:05:18 MDTNo reproduction or networking permitted without license from IHS -,-,- 2 Z 2345 : 2000 A32
20、 and STB-A7963 which are used for adjusting the working sensitivity, test range and measuring reflection of angle probe, etc. This is abbreviated to type A3 series STB. 4 Classification and type symbols of standard test blocks Classification of . the standard test blocks and their type symbols shall
21、 be as given in Table 1. Table 1 Classification of standard test blocks and type symbols Classification of standard test blocks Standard test block type G (G type STB) Standard test block type N1 (N1 type STi31 Standard test block type Al (Al type STB) Standard test block type A2 series (A2 type ser
22、ies STB) Standard test block type A3 series (A3 type series STB) 5 Materials Type symbols STB-G V2 STB-G V3 STB-G V5 STB-G V8 STB-G V15-1 STEG V15-1.4 STB-G V15-2 STB-G V15-2.8 STB-G V15-4 STB-G V15-5.6 STB-N1 STB-A1 STI3-A2 STB-A21 sTB-A22 STB-A3 STB-A31 STB-A32 STB-A7963 Testing technique Normal a
23、nd angle testing Angle testing Example of test object Ultra-heavy plate, Steel bar, Forging Heavy plate Weld and Pipe Weld and Pipe Weld Major uses (for informative reference) Adjustment of working sensitivity Measurement of characteristics of normal probe Measurement of overall performance characte
24、ristics of test equipment Adjustment of working sensitivity Measurement of characteristics of angle probe Measurement of refraction angle and probe index of angle probe Adjustment of test range Adjustment of working sensitivity Adjustment of working sensitivity Measurement of overall performance cha
25、racteristics of test equipment Measurement of refraction angle and probe index of angle probe Adjustment of test range Adjustment of working sensitivity 5.1 Materials Materials given in Table 2 shall be used appropriate to the type of standard test block. Copyright Japanese Standards Association Pro
26、vided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/15/2007 22:05:18 MDTNo reproduction or networking permitted without license from IHS -,-,- 3 Z 2345 : 2000 Heat treatment Spheroidizing Quenching and tempering (oil cooling at 850 “C for 1 h, a
27、ir cooling at 650 O C for 2 h) Normalizing, or quenching and tempering (water Cooling at 750 O C to 810 O C and a i r cooling at 650 O C are the standard) Normalizing, or quenching and tempering (water cooling at 750 O C to 810 O C and air cooling at 650 O C are the standard) Table 2 Materials Other
28、 There shall be no residual stress which causes faults in Ultrasonic propagation characteristics. There shall be no acoustical anisotropy which causes faults in ultrasonic propagation characteristics. Classification of I Material standard Al type STB standard test blocks GtypeSTB Standard A2 type se
29、ries ST% A3 type series STB JIS G 3106 Type symbols SUJ 2 SNCM 439 SM400, SM490, medium carbon steel for machine structure (killed steel of grain size number 5 or more) SM490 or medium carbon steel for machine structure (killed steel of grain size number 5 or more) Remarks: Plastics filled in the ho
30、le of 50 mm in diameter of STB-A1 shall be meth- acrylic resin plate and the longitudinal wave propagation time in that of 23 mm in thickness shall be almost equivalent to the longitudinal wave propagation time in mild steel of 50 mm in thickness at ordinary temperature. 5.2 Material inspection The
31、materials shall be inspected by ultrasonic exami- nation method as stated in Table 3 according to the type of standard test block. . Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/15/2007 22:05:18
32、 MDTNo reproduction or networking permitted without license from IHS -,-,- STD.JIS Z 2345-ENGL 2000 = 4733bh4057U2L5 2b3 Classification of standard test block GtypeSTB 4 Z 2345 : 2000 Material inspection (i) Acoustical attenuation coefficient in longitudinal wave mode of material shall not exceed 5
33、dB/m at a frequency of 5 MHz and 20 dBIm at 10 MHz. A2 type series STB A3 me sm N1 type STB Al type STB When the local immersion test is carried out on the black sealed specimen by applying normal beam to all the surface of one side using a probe of 20 mm in nominal diameter at a frequency of 5 MHz,
34、 there shall be no flaw echo which exceeds l / 4 (-12 dB) of the echo signal height of STB-G V2. (2) When the immersion test is carried out by applying normal beam onto two sides neighboring to each other of the specimen using a probe of 20 mm in nominal diameter at a frequency of 5 MHZ, there shall
35、 be no flaw echo which exceeds 1/4 (-12 dB) of the echo signal height of STB-G V2. When the local immersion test is carried out on the black sealed specimen by applying normal beam to all the surface of one side using a probe of 20 mm i n nominal diameter at a frequency of 5 MHz, there shall be no f
36、law echo which exceeds l/4 (-12 dB) of the echo signal height of STB-G V2. 6 Shapes and dimensions Shapes and dimensions of standard test blocks shall be as given in Attached Figs. 1 to 10. The appearance test shall be carried out as stated below. a) The inspection of surface roughness shall be carr
37、ied out by comparing with the roughness samples. b) The accuracy test of scale mark shall be carried out on the graving template and the product sample. The accuracy of scale mark position shall be within ztO.15 mm and that of scale mark length shall be within kO.5 mm. Copyright Japanese Standards A
38、ssociation Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/15/2007 22:05:18 MDTNo reproduction or networking permitted without license from IHS -,-,- STD.JIS Z 2345-ENGL 2000 = ir733b08 05702Lb LTT G type STB 5 Z 2345 : 2000 Nltype Altype
39、 A2typeseriesSTB A3type STB STB series STE STB-A2 sTB-A21 sTB-A22 7 Verification by ultrasonic examination Crystal or ceramics 7.1 Verification apparatus The verification apparatus given in Table 4 accord- ing to the type of standard test block shall be used. Ceramics Table 4 Verification apparatus
40、2 (or 5 10 5 5 2.25) (9 Verification apparatus 2 (or 2.25) 5 5 and 5 Ultrasonic test instrument Machine oil Transducer material Water Machine oil Transducer dimension Refraction lo angle (“1 That selected from among STB-G Couplant ( 1 ) “hat That That selected f r o m (4) selected selected among STB
41、-A2 f r o m from among among STB-N1 STB-A1 Weight for stable acoustic coupling between probe and test block Calibration block for verification Classification and type symbol of standard test block Normal probe (*) Immersion I type probe I Angle probe 0 28 I loX1O I l o X 1 O I 70 I 45and70 I 70 - No
42、tes (1) The machine oil shall be IS0 VG10 of JIS K 2238. In the case of water, water distance shall be 50 mm to 100 mm. (2) The shape of electrode in transducer shall be such that the effect of near field is avoided up to the distance to the reflection source. (3) The V2 and V3 are not measured at 2
43、 (or 2.25) MHz. (4) This shall be the one selected from among STB-A3, STB-A31, STB-A32 and STB-A7963 whose correlations with STB-A1 and STB-A2 are made clear. 7.2 Verifying conditions and verifying methods The verifying conditions and verifying methods of standard test blocks shall be as given in Ta
44、bles 5 and 6 accord- ing to the type of standard test block (hereafter, test block to be verified is called only “test block”). Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/15/2007 22:05:18 MDTN
45、o reproduction or networking permitted without license from IHS -,-,- STD-JIS Z 2345-ENGL 2000 m 4731b08 O570237 03b Gtype STB Nltype Altype A2typeseriesSTB A3typeseries STB STB STB (5) STB-A2 sTB-A21 sTB-A22 Arcial R100 face Artificial discontinuityP) R50 or R100 2 (or2.251, 5 5 and 10 5 2 (or 2.25
46、1, and 5 0.5 dB - 0 . 5 dB 0.5 dB for the holes of 04 x 4 6 2 2345 : 2000 Table 5 Verifying conditions and verifying methods Verifying conditions and items Classification and type symbol of standard test block Reflection source discontinuity 1 5 5 Frequency MHz Working Rejection sensitivity Sensitiv
47、ty t - The echo signal height h m artificial discontinuity or reflection face of the calibration block for verification is adjusted to 80 % of full scale of display graticule. Measuring method The measurement is performed by comparing echo signal height of the calibration block for verification to t
48、hat of the test block. Probe position in the case of measurement of echo signal height of artificial discontinuity by the angle beam technique It is the probe position capable of obtaining the maximum echo signal height by two skips for 4 5 O and one skip for 70 in refraction angle. It i s the probe position capable of obtaining the maximum echo signal height by 0.5 skip for 70 in refraction angle as regard to the holes of 04 x 4. Probe index measuring position As given in Table 6. - in Table 6. Refraction angle scale - I- Number of measure- ments The measu