Objective:

Magnetization is possible in certain materials; it is also possible to detect discontinuities using a magnetic medium (iron powder). Magnetic Particle Inspection is a relatively simple test method that can be applied at various stages of manufacturing and processing.

Training Examination & Certification Requirement:

During Magnetic Particle Testing Level I & II classes, you will give General theory, Specification, and Practical examinations. You are required to successfully pass these three examinations with a minimum of 70% grading in each. The average grade of all three examinations should be at least 80%, as per the requirements of ASNT SNT-TC-1A 2024.

OJT Hours: 

1. As per the requirements of ASNT SNT-TC-1A, you need a minimum of 280 hours of on-the-job training (OJT) after completing training classes to be certified in this method.
2. As per the requirements of NAS 410, you need a minimum of 530 hours of on-the-job training (OJT) after completing training classes to be certified in this method.

Training Examination & Certification Requirement:

During this Magnetic Particle Level I & II class, you will receive general theory, specifications, and practical examinations. You are required to successfully pass these three examinations with a minimum of 70% grading in each. The average grade of all three examinations should be at least 80%, as per the requirements of ASNT SNT-TC-1A 2024.

Basic Principle of Ultrasonic Testing:

The direction is a more important factor than the magnitude of the magnetizing current. For reliable inspection, magnetic lines should be perpendicular to the discontinuity. If magnetic lines are parallel to the discontinuity, leakage will be minimal, and the indication will be small or indefinite. Cracks distort the magnetic lines of force and create poles on either side of the crack. Strength depends on the number of interrupted lines of force. An indication ofthe maximum size is found when magnetic lines are perpendicular to the discontinuity. The Intensity of magnetization depends on the material's susceptibility to magnetization.

Course Description:

• Theory of Magnetization and Magnetic Materials
• Magnetization with Electric Current
• Properties of Metal and Magnetic Field
• Hysteresis Loop
• Magnetic Field Distribution
• Current Requirement
• Demagnetization
• Magnetic Particle Testing Equipment
• Magnetic Particle Application
• Interpretation & Evaluation
• Classification of Discontinuities
• Code and Standard

Hands-on Training (Practical) Outlines:

• Dry Powder Magnetic Particle Examination
• Wet Visible Magnetic Particle Examination
• Wet Fluorescent Magnetic Particle Examination (WFMT)
• Magnetic Particle Examination with Yoke
• Magnetic Particle Examination with coils

Training Material

Training Course material is provided at the start of training and is divided into sections, followed by practice worksheets and quizzes. Training books also include some referencing codes & specifications for examination procedures and acceptance.

Referencing Code and Standards:

• ASME Section V, A 709 - Magnetic Particle Examination
• ASTM E 1444 – Magnetic Particle Testing
• ASME Section VIII, Pressure Vessels