NORSOK M-001 has been revised and these are the main changes

NORSOK M-001 Materials selection, was last published in 2014. The standard provides guidance and requirements for:

• material selection and corrosion evaluations
• specific material selection where appropriate
• corrosion protection and corrosion control
• design limitations for specific materials
• qualification requirements for new materials or new applications

NORSOK M-001 concerns hydrocarbon production and processing facilities, as well as supporting systems for fixed offshore installations, including subsea production systems. The standard also applies to onshore terminals, except for structural and civil works. 

The basis for material selection and corrosion protection is a minimum design life of 20 years.

Main changes

These are the main changes to the standard:

• NORSOK M-001 has been made an independent standard, separated from NS-EN ISO 21457.
• New subclauses on corrosion assessments have been developed, clarifying which degradation mechanisms shall be evaluated for the various applications and which parameters shall be emphasized.
• New subclauses with material recommendations have been developed. Standardized material selection for most applications is expected to result in cost reductions.
• New subclauses on limitations of use for individual materials have been developed; sour service, seawater, HISC. Increased awareness of potential failure mechanisms facilitates material selection that ensures safe operation of the installation.
• The standard has been harmonized with other NORSOK standards such as H-002, H-003, I-001, M-004, N-004 and U-001 to simplify material selection for components and systems described in other standards.
• New informative annexes have been developed for:
  
  • chemical testing, standardized methods for compatibility testing of metallic materials and polymers
  • structural steel
  • design criteria to avoid HISC
  • standards for pressure-retaining equipment made of composite materials.

Contact us

If you have questions regarding the revision process, please contact project manager in Standards Norway, Espen Holm.