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Key points for non-destructive testing of the surface of industrial high-pressure reactors
Magnetic particle testing and penetrant testing are both surface nondestructive testing methods. Surface nondestructive testing of welded joints in industrial high-pressure reactors should be conducted according to the following key points: 1. Surface nondestructive testing shall be performed on welded joints of high-pressure reactors whose design temperature is below -40°C. 2. Welded joints on high-pressure reactors made of stainless steel with a minimum specified tensile strength of 540 MPa or higher. 3. Welded joints on high-pressure reactors made of austenitic stainless steel with a weld joint thickness exceeding 20 mm. 4. Welded joints on high-pressure reactors made of Cr-Mo low-alloy steel with a weld joint thickness exceeding 16 mm. 5. Stack
Release time:
2014-08-21 13:59
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Magnetic particle testing and penetrant testing are both surface nondestructive testing methods. Surface nondestructive testing of welded joints in industrial high-pressure reactors should be carried out according to the following key points:
1. Perform non-destructive surface testing on welded joints of high-pressure reactors designed for temperatures below -40 degrees Celsius.
2. Welded joints on high-pressure reactors made of stainless steel with a minimum specified tensile strength of 540 MPa or higher.
3. Welded joints of high-pressure reactors made of austenitic stainless steel with a weld joint thickness greater than 20 mm.
4. Welded joints on high-pressure reactors made of Cr-Mo low-alloy steel with a weld joint thickness greater than 16 mm.
5. Surfacing welds, clad-weld joints of clad steel plates, dissimilar steel weld joints, and weld joints prone to post-weld cracking or delayed cracking.
6. All welded joints on the formed convex heads made by splicing plates shall undergo specific radiographic or ultrasonic testing.
7. There are specific requirements.
Key points, joints, welding, inspection, high pressure, reactor, non-destructive, steel, greater than, surface
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