Calculate how long it takes for metal to rust based on material type, environmental conditions, and protective coatings. Get accurate corrosion estimates.
Rust is the common name for iron oxide, which forms when iron or its alloys corrode in the presence of oxygen and water. The rusting process is an electrochemical reaction that gradually eats away at metal surfaces.
Most commonly rusted metal. Rust rate: 0.1-0.5 mm/year in urban areas.
High rust riskContains chromium for protection. Rust rate: 0.001-0.01 mm/year.
Low rust riskZinc coating sacrifices itself to protect steel. Lasts 30-50 years.
Medium rust riskForms protective oxide layer. Rust rate: 0.0025 mm/year in marine.
Very low rust riskOur calculations are based on standard corrosion rates from materials science and engineering handbooks.
Uses actual corrosion data from various environments including marine, industrial, and urban settings.
Considers material type, thickness, coating, temperature, humidity, and environmental conditions.
Provides realistic time estimates for initial rust formation and complete material degradation.
Identifies rust risk levels and suggests preventive measures based on your specific situation.
Learn about corrosion science and how different factors affect metal degradation over time.