Standard
Track updates
AS 2207-2007
[Current]Non-destructive testing — Ultrasonic testing of fusion welded joints in carbon and low alloy steel
Specifies the methods and requirements for the manual ultrasonic testing of full or partial penetration fusion welded joints in carbon and low alloy ferritic steels, 6 mm or greater in thickness, using A-scan and employing four sensitivity levels.
Published: 12/07/2007
Pages: 49
Table of contents
Cited references
Content history
Table of contents
Header
About this publication
Preface
1 Scope and general
1.1 Scope
1.2 Referenced documents
1.3 Definitions
2 Equipment and calibration
2.1 Scope of section
2.2 Equipment
2.3 Calibration of equipment
2.3.1 Equipment characteristics
2.3.1.1 General
2.3.1.2 Assessment of horizontal and vertical linearity
2.3.1.3 Gain control
2.3.1.4 System gain
2.3.1.5 Dominant frequency
2.3.1.6 Resolution
2.3.2 Voltage stability
2.3.3 Calibration blocks
2.3.4 Reference blocks
2.4 Couplants
3 Methods of test
3.1 Scope and general
3.2 Designation of test methods and surface preparation categories
3.2.1 Designation of test methods
3.2.1.1 Ultrasonic
3.2.1.2 Test method designations for various weld configurations
3.2.1.3 Examples of designation
3.2.2 Designation of surface preparation categories
3.3 Preparation of test surfaces
3.3.1 General requirements
3.3.2 Additional surface requirements
3.4 Methods for scanning and discontinuity evaluation
3.5 Sensitivity
3.5.1 General
3.5.2 Scanning sensitivity
3.5.2.1 General
3.5.2.2 Sensitivity to be used for parent metal scanning
3.5.2.3 Sensitivity to be used for weld scanning
3.5.3 Evaluation sensitivity
3.5.3.1 General
3.5.3.2 Evaluation sensitivity levels
3.5.4 Preparation of distance-amplitude correction curves
3.6 Sizing of discontinuities
3.7 Optional variations in sizing for levels 2, 3 and 4
4 Qualification of non-destructive testing personnel
5 Presentation of test data
5.1 General
5.2 Record of test
5.3 Test report
Appendix A
A1 General
A2 Information to be supplied by the purchaser
Appendix B
B1 General
B2 Preparation of a characteristic reflectivity diagram
B3 Application of reflectivity diagram
Appendix C
C1 General
C2 Probe characteristics
C2.1 Frequency
C2.2 Beam geometry
C2.3 Types of probe
C2.3.1 General
C2.3.2 Probe shape
C2.3.3 Double probe system
Appendix D
D1 Scope
D2 Method for normal probes
D3 Method for angle probes
Appendix E
E1 General
E2 Holes
E3 Notches
E4 Back-echo
E5 Reflectivity comparison diagrams
Appendix F
F1 General
F2 Written testing procedures
F3 Scanning
F4 Surface preparation
F5 Examination of parent metal
F5.1 General examination
F5.2 Examination for lamellar tearing
F6 Examination of weld zone
F6.1 Fusion faces
F6.2 Weld root
F6.3 Identification of weld root discontinuities
F6.4 Longitudinal central plane
F6.5 Transverse planes
F7 Ultrasonic testing of fillet welds
Appendix G
G1 General
G2 Procedures for sizing using the 20 dB drop technique
G2.1 Methods for normal probes
G2.2 Methods for angle probes for vertically orientated discontinuities
G2.2.1 Vertical dimension
G2.2.2 Horizontal dimension
G3 Procedure for sizing using the 6 dB drop technique using normal probes
G4 Procedures for sizing using the last significant echo technique
G4.1 Method for normal probes
G4.2 Methods for angle probes
G4.2.1 Vertical dimension
G4.2.2 Horizontal dimension
Appendix H
H1 General
H2 Probe manipulation
H3 Echo behaviour
H3.1 Descriptions
H3.2 Echo behaviour of a spherical reflector (non-planar, e.g. a gas pore)
H3.3 Echo behaviour of a specular reflector (planar, e.g. lack of side wall fusion)
H3.4 Echo behaviour of an uneven reflector (e.g. slag inclusion)
H3.5 Echo behaviour of ragged reflectors (e.g. cracks)
H3.6 Echo behaviour of intermittent discontinuities—Practical considerations
Appendix I
I1 Compensation for convex curvature of scanning surface
I2 Compensation for convex curvature of back wall
Cited references in this standard
[Current]
Non-destructive testing — Magnetic particle testing of ferromagnetic products, components and structures
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