Formed Metal Plate MT and PT Exam Flawed Specimens (Inch Version) Carbon Steel Formed Metal Plate MT and PT Exam Flaw Specimens Formed Metal Plate Magnetic Particle and Liquid Penetrant Exam flawed specimens. Geometry: 0.25" x 4" Plate. Flaws: 3, randomly placed Standard Tolerance: +/-0.150" (4mm). Documentation: NDT Verification Reports, C of C, CAD Drawings and Test Sheets. Material: Carbon Steel. Customized Calibration Test Block and Flaw Specimen also available.