GB/T 20490-2023 Active National standards

GB/T 20490-2023 Non-destructive testing(NDT) methods of steel tubes—Automated ultrasonic testing of seamless and welded steel tubes for the detection of laminar imperfections

Publish Date: 2023-08-06 Implement Date: 2024-03-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

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Basic Information

Standard Code: GB/T 20490-2023

Standard Type: National standards

Standard Status: Active

is_force_gb: no

CCS Name: Non-destructive testing methods for metals

ICS Name: Nondestructive testing of metal materials

Publish Date: 2023-08-06

Implement Date: 2024-03-01

Pages: 13 pages

Scope

This document specifies the requirements for automatic ultrasonic testing of layered defects, including:
a) Full-circumference testing of seamless and welded steel pipes (except for submerged arc welded steel pipes);
b) Testing of the adjacent areas of welded steel pipes' welds;
c) Full-circumference testing of the ends of seamless and welded steel pipes.
This document is also applicable to the testing of circular hollow profiles.
Note: For welded steel pipes, the method of detecting layered defects in steel strips/steel plates before pipe forming is described in ISO 10893-9.