Sets out methods for manual ultrasonic testing of carbon and low alloy steel forgings at three recording levels by the use of equivalent reflector sizes. Appendices provide information on probe selection, reflectivity diagrams, testing of curved surfaces, selection of beam angle and classification of discontinuities.
Table of contents
Header
About this publication
PREFACE
FOREWORD
1 SCOPE AND GENERAL
1.1 SCOPE
1.2 REFERENCED DOCUMENTS
1.3 DEFINITIONS
2 EQUIPMENT AND CALIBRATION
2.1 GENERAL
2.2 PRESENTATION
2.3 ASSESSMENT OF HORIZONTAL AND VERTICAL LINEARITY
2.4 GAIN CONTROL
2.5 FREQUENCY RANGE
2.6 PROBES
2.7 OVERALL SYSTEM GAIN
2.8 RESOLUTION
2.9 COUPLANTS
2.10 CALIBRATION BLOCKS
2.11 REFERENCE BLOCKS
3 METHODS OF TEST
3.1 GENERAL
3.2 PREPARATION OF TEST SURFACES
3.2.1 General requirements
3.2.2 Additional surface requirements
3.3 PREPARATION FOR TESTING
3.3.1 Time base calibration
3.3.2 Preparation of reference blocks
3.3.3 Distance amplitude and area amplitude curves
3.4 ATTENUATION
3.4.1 General
3.4.2 Determination of suitability for ultrasonic testing
3.5 PROBES
3.6 METHOD
3.7 SENSITIVITY
3.7.1 General
3.7.2 Scanning sensitivity
3.7.3 Evaluation and recording sensitivity
3.7.4 Alternative scanning and evaluation-sensitivities
