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HomeStandardsNORSOK Standards

NORSOK Standards

  • Developed by the Norwegian petroleum industry, NORSOK standards aim to ensure safety, efficiency, and cost-effectiveness in offshore projects.
  • NORSOK N-004 (Rev. 3, 2013) defines requirements for structural strength and stability of steel tubular members in offshore environments.
  • Applies to cylindrical members with thickness ≥ 6 mm, D/t ratio < 120, and yield strength below 500 MPa.

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    Why Choose SDC Verifier for NORSOK N-004 Compliance

    open benchmarks to verify design

    Built-In NORSOK Logic

    Run automated member and joint checks based on NORSOK N-004 (Rev. 3, 2013), directly inside Ansys, Femap, or Simcenter 3D.

    Automated Structural Checks

    Perform axial, bending, and combined stress checks on tubular members without manual formulas or spreadsheets.

    Fast Joint Verification

    Verify tubular joints using predefined formulas and shape recognition—reduce review cycles and errors.

    Mesh-Independent Member Detection

    Use the Beam Member Finder to auto-detect buckling lengths, independent of mesh size.

    Detailed Reports for Certification

    Export calculation-ready documentation structured for classification societies and audits.

    About the NORSOK N-004 Standard

    SDC Verifier

    NORSOK N-004:2013 defines structural strength and stability requirements for offshore steel structures—specifically tubular members used in harsh environments like the North Sea.

    Applies to cylindrical steel members with:

    • Thickness ≥ 6 mm
    • D/t ratio < 120
    • Yield strength < 500 MPa

    Covers:

    • Member and joint strength checks
    • Integrity assessments for damaged or aging structures
    • Reuse evaluations under new loading or service conditions

    This standard follows the design principles of ISO 19900 and references EN 1993-1-1 and NS 3472.

    List of Ready to Use Standards

    Norsok N004 (Rev. 3, 2013)
    2013

    #Standard Norge

    • Industries

      • Offshore and Maritime
      • Oil and Gas
      • Renewable Energy

    • Types of Analyses

      • Beam Buckling

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