REC47 (2008)

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REC47 (2008)No.47 Shipbuilding and Repair Quality Standard
(1996)
(Rev. 1， 1999)
(Rev.2， Dec. 2004)
(Rev.3， Nov. 2006)
(Rev.4， Aug. 2008)

Part A Shipbuilding and Remedial Quality Standard for New Construction

Part B Repair Quality Standard for Existing Ships

PART A - SHIPBUILDING AND REMEDIAL QUALITY STANDARDS FOR NEW CONSTRUCTION

1. Scope
2. General requirements for new construction
3. Qualification of personnel and procedures
3.1 Qualification of welders
3.2 Qualification of welding procedures
3.3 Qualification of NDE operators
4. Materials
4.1 Materials for structural members
4.2 Surface conditions
5. Gas Cutting
6. Fabrication and fairness
6.1 Flanged longitudinals and flanged brackets
6.2 Built-up sections
6.3 Corrugated bulkheads
6.4 Pillars， brackets and stiffeners
6.5 Maximum heating temperature on surface for line heating
6.6 Block assembly
6.7 Special sub-assembly
6.8 Shape
6.9 Fairness of plating between frames
6.10 Fairness of plating with frames
6.11 Preheating for welding hull steels at low temperature
7. Alignment
8. Welding Joint Details
8.1 Typical butt weld plate edge preparation (manual welding and semi-automatic welding)
8.2 Typical fillet weld plate edge preparation (manual welding and semi-automatic welding)
8.3 Butt and fillet weld profile (manual welding and semi-automatic welding)
8.4 Typical butt weld edge preparation (Automatic welding)
8.5 Distance between welds
9. Remedial
9.1 Typical misalignment remedial
9.2 Typical butt weld plate edge preparation remedial (manual welding and semi-automatic welding)
9.3 Typical fillet weld plate edge preparation remedial (manual welding and semi-automatic welding)
9.4 Typical fillet and butt weld profile remedial (manual welding and semi-automatic welding)
9.5 Distance between welds remedial
9.6 Erroneous hole remedial
9.7 Remedial by insert plate
9.8 Weld surface remedial