GB/T 2971-1982
Abolished
NB/T 47013.21-2025
Active
Industry standards-Energy
NB/T 47013.21-2025 Non-destructive testing of pressure equipment - Part 21: Detection using alternating electromagnetic fields
NB/T 47013.21-2025 Non-destructive testing of pressure equipment - Part 21: Detection using alternating electromagnetic fields
Price:
$ 30
Basic Information
Standard Code:
NB/T 47013.21-2025
Standard Type:
Industry 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:
2025-12-18
Implement Date:
2026-06-18
Scope
This document is applicable to the AC electromagnetic field detection of surface open defects in welded joints of metal materials in pressure-bearing equipment, the AC electromagnetic field detection of underwater metal welded joints, and the full-wall thickness AC electromagnetic field detection of butt joints of thin-wall austenitic stainless steel used in nuclear engineering.
Development Information
Same series standard
Related Standards
GB/T 5193-1985
Replaced
GB/T 5193-1985 Method of ultrasonic inspection for wrought titanium and titanium alloys products
GB/T 5616-1985
Replaced
GB/T 5616-1985 Guidlines for application of conventional nondestructive testing methods
GB/T 5677-1985
Replaced
GB/T 5677-1985 Methods of radiographic testing and classification of radiographs for steel castings
GB/T 5778-1986
abolished_transferred
GB/T 5778-1986 Determination of hermeticity of expansion alloys
GB/T 7233-1987
Replaced