NORSOK standard M Edition 5, October NORSOK standard Page 3 of Foreword 5. Introduction 5 1 Scope 6 2 Normative and informative. M Rev Dec. This NORSOK standard is developed by NTS with broad industry participation. Please note that whilst every effort has been made to . NORSOK M Structural steel fabrication. standard by NORSOK, 10/01/ View all product details. Most Recent. Track It. Language: English. Available.

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Ground surface shall norsok m 101 free of any cracks or cracklike indications, and there shall be no evidence of undercut or overlap. The external circumference shall not depart from the nominal external circumference by more than the following Ref.

The detailed deviation reports shall be available at all stages in fabrication, and shall be submitted on request. All tolerance requirements are based on nominal values on unloaded structure.

If the deformation is more than the above given limits, either heat treatment shall be performed, or strain ageing tests shall be carried out according to the following procedure: Groove depth measuring tools and macro photo is normally applied.

Repair welding and inspection shall be performed if removal norsok m 101 the base metal exceeds the specified noraok. If no other requirements are specified, a tapering of 1: Chemical Analysis For solid wires and metal powders the analysis shall represent morsok product itself.

Where relevant, the contents of a NORSOK standard will be used to provide input to the international standardisation process. Guide on methods for assessing the acceptability of flaws in fusion welded structures.

The extent of Norsok m 101 shall norsok m 101 increased for Inspection categories B, C and D if repeated occurrence of planar defects are revealed norsok m 101 if the weekly defect rate for any NDT method, including all types of defects, are as given for the limits below. Tools for check and measurements shall be described and shall be available during operations.


Unless other requirements apply higher alloyed consumables than given for the relevant stainless component shall be selected for tacking and final welding.

Webprint Printed and bound. C tolerance references – internal stiffeners Fig.

If not specified, the requirement for minimum CTOD value shall be as for the steel purchase order. Typical examples of grinding requirements are given in annex A. B tolerance references Norsok m 101. Grid system S Max. Temporary attachments shall be cut minimum 3 mm from the base metal and ground.

This ensures that you are always norsok m 101 and saves you both time and money. All girders, boxes, nodes and other structures shall be properly and clearly marked relative to the grid system at all interfaces, if relevant for the remaining steps of the construction. For information also specified limits for S, P and Norsok m 101 in the core wire or strip. Ultrasonic examination of offshore structural fabrications. Monitoring Standards monitoring is a free service designed for you who wish to be alerted of changes to or new editions of the standards required in your work.

Reference lines are marked lines on construction parts and assemblies.

Location of hidden stiffeners, norsok m 101 etc. We share information about your activities on the site with our partners and Google partners: It should be observed that the requirement to fabrication tolerances in this annex may be more strict than the manufacturing tolerances for steel products according to M The ultrasonic operator’s assessment of the defect, using his knowledge of the welding process, signal geometry, defect position etc.

Prods are acceptable where the geometry of the welded joint prevents the use of yokes. The specified percentage to be tested norsok m 101 table 9.

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CTOD-testing of welds shall be carried out with the fatigue notch tip positioned in the coarse grained region of the heat affected zone and in the weld metal. Mating surface level at stab-in MSF: Certificates shall be actively used by norsok m 101 purchaser to norskk received consumables against the accepted data sheet. Specific tolerance requirements are shown on respective drawings, and shall be mandatory.


Deposition of a weld pad for chemical analysis. For restrained joints of complicated design, PWHT may be required for smaller thicknesses, independent of steel quality level.

Norsok m ed 5 , Oct _百度文库

Repair welding may only be carried out norrsok in the same norsok m 101. For special structures such as jackets being built laying down, noraok reference system must be adjusted to this fabrication situation, but the final as built norsok m 101 shall be related to the platform grid system.

Crater cracks may be repaired by grinding followed by NDT and subsequent repair welding according to an accepted repair welding procedure. The system’s east axis shall be positive toward east or starboard, if ship.

A norskk procedure representing the maximum heat input to be used in fabrication. Max length 2t, Max length 4t, max 50 mm max mm Surface norsok m 101 are not acceptable except: NTS is responsible for the administration and publication of this standard.

Where steel items shall be hot dip galvanised, hollow sections shall be ventilated. A marked or imaginary point on a member or structure from which dimensions shall be related. Parts distorted by welding, beyond the tolerances, should be straightened in accordance with the requirement in clause 6.

Latest issue of the references norsok m 101 be used unless otherwise agreed. Local tolerances for sliding and pivoting ends shall be specified on the structural drawings. The requirement noorsok minimum CTOD value shall be prescribed by the designer.