GB/T 45377-2025 Active National standards

GB/T 45377-2025 Non-destructive testing—Long-range inspection of above-ground pipelines and plant piping using guided wave testing with axial propagation

Publish Date: 2025-03-28 Implement Date: 2025-03-28 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

Price: $ 44.00

Out of stock

Basic Information

Standard Code: GB/T 45377-2025

Standard Type: National standards

Standard Status: Active

is_force_gb: no

CCS Name: Basic standards and general methods

ICS Name: Non-destructive testing

Publish Date: 2025-03-28

Implement Date: 2025-03-28

Pages: 20 pages

Scope

This document specifies a method for long-distance detection of corrosion or erosion damage to ground lines and factory pipelines made of carbon steel and low-alloy steel using ultrasonic guided waves propagating axially along the entire circumferential cross-section.
This document is applicable to the following types of pipelines:
—— Ground-coated pipelines;
—— Ground pipelines with insulation layers;
—— Coated factory pipelines;
—— Factory pipelines with insulation layers.
Note: The guided wave testing (GWT) method is used to quickly inspect ground lines, factory pipelines, and pipelines with casing under roads to perform qualitative screening and localization of potential corrosion or erosion areas. GWT is typically implemented on in-service pipelines. Pipe sections with casing under roads (without asphalt or plastic coatings) are special buried pipes whose outer walls are not subject to soil pressure. This document is applicable to such pipes. Due to their increased complexity, other types of pipelines are not included in the above list and require the use of specialized detection methods.