ADVANCED MARIN INSPECTION
FARTYGSBESIKTNING.SE
HEM HOME
⛽ 10. The Truth About the Steel Fuel Tank Promise
🗣️ The Myth: "Commercial diesel tanks are built of welded steel, hold tens of thousands of liters, and are protected in the engine room. They will last the lifetime of the vessel."
⚙️ The Technical Reality:
Steel and diesel are a risky combination over time. Large fuel tanks breathe, constantly drawing in humid sea air. Temperature fluctuations create heavy condensation that drips down and settles at the bottom of the tank beneath the diesel. This water layer creates the perfect breeding ground for microbiological growth (diesel bug), whose byproduct is extremely aggressive acids.
⚠️ The Hidden Risks:
These acids attack and relentlessly corrode the steel from the inside out via localized pitting. From the outside, the tank may look freshly painted and flawless, right up until the day the plate yields. A sudden breach means the engine room or bilge floods with tons of diesel. This incurs extreme cleanup costs, environmental fines, and ruined equipment.
🔬 The Evidence Method (NDT & Analysis):
Ultrasonic Thickness Gauging (UTG) from underneath directly against the tank's bottom profiles to measure exact remaining plate thickness, combined with deep bottom sampling.
⚖️ The Chairman's Verdict:
A massive fuel leak ends your company's fiscal year. We determine the actual thickness of the metal from the outside—fast, clinical, and without guessing.