Corrosion Assessment and Audit
Corrosion is often described as the "silent tax" on industrial infrastructure, a hidden expense that accumulates unnoticed until it manifests as a catastrophic failure. In the chemical and pharmaceutical industries, where substances are often volatile, toxic, or highly acidic, the stakes are significantly higher than in standard manufacturing. A Corrosion Assessment & System Audit is not a simple walk-through; it is a proactive, multidisciplinary "deep dive" into the physical health of a facility.
- Corrosion Risk Assessment
- FMEA for Plant Assets
- Critical Asset Identification
- Mitigation Solutions
About Corrosion Assessment and Audit
Unlike routine maintenance, an audit evaluates the actual effectiveness of current protection strategies. It examines whether chemical inhibitors are being injected at the right concentrations or if cathodic protection systems are functioning as designed. A critical part of this process is identifying "dead legs"- sections of piping that have been bypassed or capped off. In these stagnant zones, process fluids sit motionless, creating breeding grounds for localized corrosion that can eat through high-grade alloys from the inside out.
The audit also targets Corrosion Under Insulation (CUI), a notorious problem in pharma plants where pipes are wrapped for temperature control. Moisture trapped beneath insulation can cause rapid, unseen thinning of the metal. To combat this, auditors use Non-Destructive Testing (NDT), such as ultrasonic thickness gauging and pulsed eddy current, which allow them to measure the "health" of the metal without cutting into the pipes.
The ultimate goal is to move the organization away from a "run-to-failure" mentality. By identifying specific degradation mechanisms like Stress Corrosion Cracking (SCC) early, companies can shift to a predictive model. This ensures strict regulatory compliance and environmental safety while providing massive cost savings by extending the time between major plant shutdowns.
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Corrosion Risk Assessment
A comprehensive corrosion risk assessment is carried out to understand the interaction between materials, process conditions, and the operating environment. This includes identifying potential corrosion mechanisms such as pitting, galvanic corrosion, erosion-corrosion, and corrosion under insulation (CUI). Each risk is evaluated based on its likelihood of occurrence and the severity of its consequences. Historical data, operating parameters, and design considerations are also reviewed to highlight vulnerabilities. The result is a clear risk profile that enables better planning and informed decision-making.
FMEA for Plant Assets (Failure Modes and Effects Analysis)
Failure Modes and Effects Analysis (FMEA) is applied to systematically identify how corrosion-related failures can occur in plant equipment and systems. Critical assets such as pipelines, pressure vessels, storage tanks, and heat exchangers are evaluated to determine possible failure modes, their causes, and their operational impact. Each failure mode is prioritized using risk ranking methods, allowing focus on the most critical issues. This structured analysis supports preventive maintenance planning, reduces unplanned downtime, and enhances overall asset reliability.
Corrosion Risk Mapping and Critical Asset Identification
Corrosion risk mapping provides a visual representation of high-risk areas within the plant. By integrating assessment data with plant layout and operating conditions, it becomes easier to identify zones that are more susceptible to corrosion damage. Critical assets are then identified and ranked based on their exposure to risk and their importance to operations. This approach enables targeted inspections, efficient allocation of resources, and prioritization of maintenance activities, ensuring that high-risk areas receive timely attention.
Corrosion Control Strategy & Mitigation Solutions
Based on the findings from the assessment and analysis, tailored corrosion control strategies are developed to suit the specific needs of the plant. These strategies may include material upgrades, application of protective coatings and linings, cathodic protection systems, and optimization of process parameters. Chemical treatment programs such as corrosion inhibitors and biocides may also be recommended where applicable. In addition, inspection and monitoring plans are established to track asset condition over time. The overall objective is to minimize corrosion-related failures, extend equipment life, and reduce maintenance costs while ensuring safe and efficient operations.
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Simple answers to frequent questions from clients.
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Simple answers to frequent questions from clients.
Our audits involve a comprehensive onsite evaluation of your infrastructure and equipment, identifying active corrosion sites and potential risk zones. We use advanced diagnostic tools to provide a detailed report on asset health and remaining service life.
While annual checks are standard, we recommend assessments based on the aggressiveness of your specific chemical environment. High-risk areas or systems handling volatile substances may require semi-annual "health checks" to prevent sudden failures.
Yes, we utilize non-destructive testing (NDT) techniques and specialized probes to detect internal wall thinning and pitting. This allows us to assess the integrity of your process lines without needing to shut down or dismantle the system.
Third-party audits provide an unbiased, expert perspective backed by specialized forensic equipment. We often identify subtle chemical-induced degradation patterns that standard maintenance crews might overlook.
Many safety standards require documented proof of structural integrity and corrosion management. Our reports serve as formal documentation to help you meet environmental, health, and safety (EHS) regulations.