Thickness Measurement for Chemical Tankers and Bulk Carriers at the Port of Stade

Inspection services for ships at Stade

Each service has its own page with the method, the class requirements and what the report contains.

Where gauging happens at Stade

Stade has no ship repair yard, so gauging here is done afloat at the industry berths and quays. On chemical tankers the ship's own permit system and the terminal's safety rules govern every step: cargo tanks are entered only with a valid gas-free certificate, which is unusual during a loading call, so a Stade job on a tanker typically covers ballast tanks, deck plating, cargo and ballast piping on deck, and the engine room. On bulk carriers at the bauxite berths, holds are gauged as each is emptied by the grabs.

Ships needing dry-docking go up the Elbe to the Hamburg yards or further afield, and readings taken at Stade travel with them as the pre-docking steel estimate. Barges and short-sea vessels lying at the port between cargoes, and ships kept waiting for a berth, give the most time, and those are the windows for complete owner's condition or pre-purchase surveys. Where a tanker is going off-hire or changing trades, a cleaned and gas-freed ship at a lay-by berth is the right place to measure inside the cargo tanks.

• Chemical berths at the industry piers — ballast tank, deck and deck-piping gauging on chemical tankers within terminal safety rules.
• Bauxite and ore berths — hold frames, tank top and hopper plating measured on bulk carriers after discharge.
• Barge berths for alumina — hull, deck and hold readings on inland and estuary barges between loadings.
• General cargo quays — gauging on coasters and general cargo ships during cargo work.
• Lay-by berths — cargo tank gauging on cleaned, gas-freed tankers before off-hire, sale or a change of trade.
• Hamburg yards up the Elbe — the usual docking destination, using Stade readings to plan steel.

Chemical trade standards, port state control and EU rules at Stade

Port state control at Stade follows the Paris MoU and is carried out by BG Verkehr's Ship Safety Division. Chemical tankers face a second layer of scrutiny from cargo owners and charterers, whose vetting inspections look hard at cargo tank condition, deck piping, ballast tank coatings and structural corrosion. A tanker with corroded deck lines or thin ballast tank boundaries can lose employment long before a class surveyor would call for renewal, so owners of chemical tankers often gauge beyond the minimum the rules require.

Under the EU Ship Recycling Regulation, ships calling at Stade, whatever their flag, must carry an Inventory of Hazardous Materials. EU ETS has covered shipping emissions since 2024 and FuelEU Maritime since 2025, which matters for deep-sea chemical tankers and bauxite carriers on long voyages into the EU. For the barge fleet, inland waterway rules apply rather than the seagoing ones, but steel condition still decides how long a hull can stay in service, and periodic thickness measurement is the evidence an owner needs to choose between renewal and replacement.

Ships trading to Stade are inside a sulphur emission control area, where fuel must not exceed 0.10% sulphur unless an exhaust gas cleaning system (scrubber) is fitted. Scrubber wash-water piping, the overboard discharge and the hull penetration around it are among the fastest-corroding parts of a modern ship, so they belong in the gauging scope at every docking and, on open-loop systems, between dockings.

How a thickness measurement job runs at Stade

The sequence for a thickness measurement job at Stade is short and written down, so the yard, the surveyor and the superintendent know who arranges what.

Hamburg Airport is the nearest international airport, and the team reaches Stade-Bützfleth by road through the Hamburg area, or by train to Stade and then road to the port. Access to the industry berths is tightly controlled under ISPS and the chemical companies' own safety rules, so the ship's agent arranges passes and any site induction in advance. The technicians from India travel on Schengen visas; please give the expected loading or discharge date early so that mobilisation can follow the berth plan.

• Send the vessel name or IMO number, ship type, class society, the survey due (annual, intermediate, renewal survey number, CAP or owner's condition survey), the port and dates, and the scope you expect.
• We confirm the scope against the class rules for that survey, prepare the thickness measurement plan with frame and section references, and say whether the measurement will be credited to a class survey.
• Mobilisation is planned around visa lead times and the vessel's schedule; the ship's agent arranges port access, and the yard or ship arranges staging, lighting, ventilation and gas-free certificates.
• Gauging with calibrated ultrasonic thickness gauges: through sound coatings only where the gauge's through-coating mode has been verified on a coated reference, otherwise on cleaned bare steel, with every reading tied to its frame, strake and location on the sketch.
• Readings are compared with original thicknesses as work proceeds; substantial and excessive corrosion and any cracks are reported to the attending surveyor and the superintendent the same day.
• The final report is issued on the class thickness-measurement formats with sketches, a summary of locations exceeding the allowable margins, piping tables where piping was in scope, and the gauge calibration and technician certificates.

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