Find the most up-to-date version of JIS Z at Engineering JIS Z Methods of radiographic examination for welded joints in steel ( FOREIGN STANDARD). standard by Japanese Industrial. Home ยท Documents; JIS Japanese Industrial Standard – JIS Z – Radiographic Examination for Weld Joints in Steel.
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Weak Point Non-relevant signal and noise are disturbed evaluation. Easy for detecting a superficial discontinuity. UT Advantage Easy for detecting a plain type discontinuity. Comparatively, cost for testing is higher than others. Local corrosion occurred jia opposite side can be located and the remained wall thickness can be read by continuous searching.
JIS Z 3104:1995 English Edition
Round type discontinuity can be detected easily. Easy to apply in field testing when used portable set. Easy for detecting a plain type discontinuity. Magnetizing with perpendicular two direction is necessary for detection of each discontinuity.
Methods of Radiographic examination for welded joints in steel. Generally, qualitative analysis with reference artificial flaws.
MT Advantage Cost for testing is lower than other methods. Non-relevant signal and noise are disturbed evaluation. Round type discontinuity is difficult for detection. Accessibility for both side of test object is required.
Revised standard, JIS Z Internal Rotary Inspection System IRIS Ultrasonic transducer inserted into 314 tube can read the degree wall thickness via a rotating mirror attached to water turbine that is worked by pressure water.
Normal Straight Beam method for Thickness gauging Continuous scanning on interest area Local corrosion jos on opposite side can be located and the remained wall thickness can be read by continuous searching. Careful application according to a test procedure is required for getting proper test results. Post-Cleaning is necessary for rotating equipments to remove the particle.
The constitution of the standard is explained. Weak Point Limited to ferromagnetic materials.
JIS Z English Edition – $ : JIS Standards, Online store
Skilled technician is required to conduct testing. Easy to evaluate by visible indication appeared on tested surface. Easy for handling with portable devices. The main points of the revision in the standard proper and the appendices for the cases of steel plate welded joints, the circumferential joints of steel pipes, the T-shaped joints of steel plates and the method of classifying flaw images by radiographs are described. Limited to ferromagnetic materials.
Close Go to Workspace. Kind, shape and dimension of discontinuity can not be identified from test results.
Thinner coating covered a surface discontinuity is not disturbed for detecting by this method. Surface condition is affected to test results. High speed test is available. The revision of this standard was attempted several times, and the course of revision id described. No electric power is required except for lighting in dark room.
Sectional drawing for corroded area and longitudinal location of such corrosion can get visibly on CRT.