Products News

January 17, 2022

What is non-destructive testing of steel pipes? What kinds of flaw detection methods are included?

Non-destructive testing, referred to as NDT, is a modern inspection technology that detects the shape, position, size and development trend of internal or external defects without damaging the object to be tested. In recent years, it has been widely used in steel pipe production. The non-destructive testing methods used in the production of seamless steel pipes mainly include ultrasonic testing, eddy current testing, and radiographic testing. All inspection operators (except visual inspection) involved in this standard shall be qualified non-destructive inspection personnel according to ISO11484 or ASNT SNT-TC-1A: 1984. In addition to wall thickness testing, ultrasonic and electromagnetic inspection systems […]
January 12, 2022

Various inspection methods of oil casing

Petroleum casing is a high-end product produced by steel pipes. There are many varieties of casing, and there are many types and requirements of casing pipe end buttons. The button types that can be processed include STC, LC, BC, VAM and other button types. The production and installation process of oil casing involves a lot of testing, mainly including the following: 1. Ultrasonic testing; when ultrasonic waves are transmitted in the tested material, the acoustic properties of the material and changes in internal organization have a certain impact on the transmission of ultrasonic waves. Through the exploration of the degree […]