GB/T 2971-1982
Abolished
DL/T 694-2024
Active
Industry standards-Electricity
DL/T 694-2024 High-temperature bolted joint ultrasonic testing technique guidelines
DL/T 694-2024 High-temperature bolted joint ultrasonic testing technique guidelines
Basic Information
Standard Code:
DL/T 694-2024
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:
2024-05-24
Implement Date:
2024-11-24
Scope
This document specifies the ultrasonic testing method for high-temperature fastening bolts and the evaluation of the testing results. This document is applicable to ultrasonic testing of high-temperature fastening bolts with a diameter of not less than M32 in steam cylinders, steam valves, various valves, and steam pipe flanges of thermal power generation units. The ultrasonic testing of other fastening bolts can also be carried out in accordance with this document.
Development Information
Replace the following standards
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