Metacor Q & As
What are the main factors determining the rate of external corrosion of steel?
Typically, continuously damp areas with high chloride deposition rates (e.g. platform splash zone) exhibit high annual corrosion rates (1mm p.a. in SNS).
There are many other factors such as prevailing winds, permanently damp or pooling areas and chimney effects pulling damp chloride-laden air from lower levels.
External Corrosion Management Ltd was established in 2001 to provide a solution to the problem of defining scopes for offshore fabric maintenance projects. Scopes which were safe, rational and cost-effective.
Previously, external corrosion management had been an expensive source of frustration to asset managers. Caught between the conflicting demands of cost reduction and safety standards, maintenance had often been carried out on an ad-hoc basis – and frequently deferred or eliminated altogether, based on subjective judgements without the benefit of informed risk assessment.
Through an expert system, which quantifies and predicts external corrosion and provides justifiable coatings maintenance options, ECM puts the asset manager back in control of paint maintenance programmes.
