Semless Steel Pipe and Tube
Why is Non-Destructive Testing (NDT) performed on seamless steel pipes ? What is the difference between ultrasonic testing and eddy current testing? Non-Destructive Testing (NDT) is essential for seamless steel pipes, acting as a crucial safety and quality assurance measure. It detects manufacturing flaws (e.g., cracks, inclusions, pores, folds ) that threaten mechanical integrity and can lead to catastrophic failure in critical, high-stress applications (like boiler or hydraulic tubes ). 1. Method Comparison and Selection The two main NDT methods, Ultrasonic Testing (UT) and Eddy Current Testing (ECT), are differentiated by their principles and optimal use cases: 1) Ultrasonic Testing (UT) • Principle: Uses high-frequency sound waves . Defects reflect the waves, allowing accurate determination of location, size, and nature. • Strengths: High inspection depth, high sensitivity, accurate...
