DEFSTAN 02-773/1(2000) : 2000
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
MINIMUM ACCEPTANCE STANDARDS FOR WELDS IN HM SURFACE SHIPS AND SUBMARINES
Hardcopy , PDF
07-31-2006
English
01-01-2000
AUTHORIZATION
CONDITIONS OF RELEASE
INTRODUCTION
SECTION 1 - SCOPE
SECTION 2 - RELATED DOCUMENTS
SECTION 3 - ABBREVIATIONS AND DEFINITIONS
Abbreviations
Definitions
SECTION 4 - ACCEPTANCE STANDARDS AND PIPE SYSTEM LEVELS
Applicability
Alternative Standards of Acceptance
Structure and Engineering
Assemblies Including Pipework
Class 1
Class 2
Class 3
Levels of Importance of Pipe Systems
Level 1 System
Level 2 System
Level 3 System
Level 4 System
SECTION 5 - DRAWINGS AND CONTRACT REQUIREMENTS
General
Visual Examination
Liquid Penetrant Examination
Radiographic Examination
Ultrasonic Examination
Figure 1 Tee-Butt Joint
(Relevant Dimensions)
SECTION 6 - ACCEPTANCE STANDARDS FOR VISUAL EXAMINATION OF
WELDS INCLUDING PIPE WELDS
Acceptance Standards Classes I and 2
Cracks
Porosity
Surface Condition
Undercut
Fillet Welds
Butt Welds
Misalignment
Weld Profile
Acceptance Standard Class 3
Fillet Welds
Misalignment
Weld Profile
SECT10N 7 - ACCEPTANCE STANDARDS FOR VISUAL EXAMINATION
OF PIPE WELDS EXCLUDING SLEEVE AND SOCKET WELDS
Acceptance Standards for System Levels 1, 2 and 3
Butt Welds
Misalignment
Weld Profile
Table 1 Limits of Root Protrusion
(Excess Penetration Bead)
Acceptance Standard System Level 4
Misalignment
Weld Profile
Tube - Tubeplate Welds
SECTI0N 8 - ACCEPTANCE STANDARDS FOR MAGNETIC PARTICLE
EXAMINATION OF ALL WELDS
General
Evaluation
Cracks
SECTION 9 - ACCEPTANCE STANDARDS FOR LIQUID PENETRANT
EXAMINATION OF ALL WELDS EXCEPT WELD METAL
SURFACING AND CLADDING
General
Welded Joints
Cracks
SECTION 10 - ACCEPTANCE STANDARDS FOR LIQUID PENETRANT
EXAMINAT10N OF WELD METAL SURFACING AND
CLADDING
General
Weld Build-up/Buttering
Corrosion-Resistant or Wear-Resistant Cladding
Standards for Rounded Indications
Table 2 Acceptance Standards for Rounded
Inclusions In Weld Metal Surfacing and Cladding
SECTION 11 - ACCEPTANCE STANDARDS FOR RADIOGRAPHIC
EXAMINATION OF WELDS INCLUDING PIPES
General
Defect Evaluation
Tube - Tubeplate Welds
Class 1 Acceptance Standard for Structure,
Engineering Assemblies and Pipe Welds in
Level 1 Systems
Figure 2 Maximum Allowable Non--Metallic Inclusions
Class 1 Acceptance Standard
Figure 3 Combination of Adjacent Defects
Corrosion-Resistant or Wear-Resistant Cladding
Standards for Rounded Indications
Table 2 Acceptance Standards for Rounded
Inclusions In Weld Metal Surfacing and Cladding
SECTION 11 - ACCEPTANCE STANDARDS FOR RADIOGRAPHIC
EXAMINATION OF WELDS INCLUDING PIPES
General
Defect Evaluation
Tube - Tubeplate Welds
Class 1 Acceptance Standard for Structure,
Engineering Assemblies and Pipe Welds in
Level 1 Systems
Figure 2 Maximum Allowable Non--Metallic Inclusions
Class 1 Acceptance Standard
Figure 3 Combination of Adjacent Defects
Class 2 Acceptance Standard-Aluminium Alloy Welds
Uniform, distributed porosity
Localised or clustered porosity
SECTION 12 - ACCEPTANCE STANDARDS FOR ULTRASONIC
EXAMINATION OF ALL WELDS EXCEPT WELD METAL
SURFACING AND CLADDING
General
Butt Joints
Tee Butt Joints
SECTION 13 - ACCEPTANCE STANDARDS FOR ULTRASONIC
EXAMINATION OF WELD METAL SURFACING AND
CLADDING
Acceptance Criteria for Cladding not Subject to
Significant Stress
Acceptance Criteria for Cladding subject to
Significant Stress
SECTION 14 - ACCEPTANCE STANDARDS FOR EXAMINATION
OF SLEEVE AND SOCKET WELDS
Visual Examination
Dye Penetrant Examination
Radiographic Examination
General
Porosity
Non-Metallic Inclusions
Lack of Fusion and Lack of Penetration
Cracks
Rectification of Defects
SECTION 15 - ACCEPTANCE STANDARDS FOR EDDY CURRENT EXAMINATION
General
Evaluation
SECTION 16 - RECTIFICATION OF DEFECTS
General
Parent Material
Weld Metal
ANNEX A - DEFINITIONS AND ILLUSTRATIONS OF WELD IMPERFECTIONS
ANNEX B - PROCUREMENT CHECK LIST
Access your standards online with a subscription
Features
-
Simple online access to standards, technical information and regulations.
-
Critical updates of standards and customisable alerts and notifications.
-
Multi-user online standards collection: secure, flexible and cost effective.