Marine Link
Tuesday, February 7, 2023

Shipbuilding / Vessel Construction

Shipbuilding is the construction of ships, which takes place in a specialized facility known as a shipyard. Shipbuilders, also called shipwrights, are workers which specialize in vessel construction and repair. The construction of boats is called boat building. Due to the smaller size and scope of the vessels being produced, boats do not necessarily require the full services of a shipyard but may be built in a boatyard or even smaller private facility.

Block construction is a modern shipbuilding method which involves the assembly of prefabricated sections. Cross-sections of the superstructure are pre-built in a shipyard, taken to the building dock (or slipway,) and then hoisted into position and attached. Some of the more equipped shipyards are able to build equipment and utilities into the blocks, pre-installing pipes, plumbing, and electrical cables. The more components that can be built into the blocks before final assembly, the less effort required once the hull is welded together.

Since the 40s, modern ships have been made of welded steel. The first ships produced by this method had problems with inadequate fracture toughness, which let to rare but devastating structural cracks. The development of specialized steel in the 50s has largely eliminated the problem of brittle fracture, although there are still instances due to the unregulated use of grade A and B steel. This problem seems to result when steel with unknown toughness or FATT (fracture appearance transition temperature) is used in side shells. Despite these occasional incidents, most problems with brittle fractures seem to have been eliminated my modern methods and regulation.

Depending on design and materials, vessels reach a point in their lifespan where refitting and repair become impractical or impossible. The demolition of ships is called ship breaking- a process designed to allow materials and components to be reused and recycled. Equipment can often be reused in other ships, and metals (particularly steel) are separated for scrap recycling, with the hulls being discarded in ship graveyards.

Tags: shipbuilding Vessel Construction

Brazilian President Luiz Inacio Lula da Silva - Credit: Palácio do Planalto - CC BY 2.0

Brazil Govt Will Promote Recovery in Shipbuilding, Oil & Gas, President Lula Says

Brazilian President Luiz Inacio Lula da Silva said on Monday his government would…

(Photo: Philly Shipyard)

Philly Shipyard Transfers Prime Plate Facility to Avalotis Industrial Services

Philly Shipyard said it has reached a deal with Avalotis Corporation affiliate  Avalotis…

(Image: Mitsubishi Shipbuilding)

Mitsubishi Shipbuilding and INPEX Complete Ammonia Bunkering Vessel Study

Mitsubishi Shipbuilding recently completed a conceptual study with INPEX CORPORATION…

Joey D’Isernia (Photo: Eastern Shipbuilding Group)

Joey D’Isernia Named CEO of Eastern Shipbuilding Group

Eastern Shipbuilding Group, Inc. (ESG) on Thursday announced Joey D’Isernia has been…

Austal USA welcomed U.S. Navy Chief of Naval Operations (CNO) Admiral Michael Gilday at the company’s Mobile, Ala. shipyard. Image courtesy Ausal USA

Chief of Naval Operations Visits Austal USA

Austal USA welcomed U.S. Navy Chief of Naval Operations (CNO) Admiral Michael Gilday…

(Image: Grimaldi Group)

Grimaldi Orders More Ammonia Ready Car Carriers

The Grimaldi Group announced it has exercised its option for the construction of…

Cadmatic CEO Jukka Rantala (left) and CONTACT Software CEO Karl Heinz Zachries (right) shake hands on the strategic partnership agreement (Photo: Cadmatic)

Shipbuilding: Cadmatic and CONTACT Software Partner

Engineering and industrial software providers Cadmatic and CONTACT Software have…

(Image: MARAD)

Steel Cut for Fourth National Security Multi-Mission Vessel

Philly Shipyard held a steel cutting ceremony for the fourth in a series of new training…

(Photo: Eastern Shipbuilding Group)

Eastern Cuts Steel for Bridgeport-Port Jefferson Ferry

Florida shipbuilder Eastern Shipbuilding Group has cut first steel for a new auto…

©Fincantieri Marine Group

Offshore Wind: Shipbuilder Selected for Crowley, Esvagt JV SOV

Following the news on Wednesday that Crest Wind, a joint venture between Crowley and ESVAGT…

©Harland & Wolff

Team Resolute Wins $1.97B Deal to Build Three UK Navy Support Ships

Team Resolute, a consortium comprising BMT, Harland & Wolff, and Navantia UK, has…

(Photo: Enesel Group)

SWS Launches New Tanker for Enesel

Greek shipping company the Enesel Group announced the launch of its new Aframax/LR2…

Related Articles

Ship Repair

All ships need maintenance and repairs. Many repair and maintanance operations can be performed at sea or by the crew in port. Complicated or large-scale repairs might require the ship to be removed from commercial operation. Classification…

Maritime Contracts

Contracts between vessel owners and charterers concerning the water transportation of goods are technically known in admiralty law as "contracts of affreightment". The charterer agrees to pay a freight charge for cargo space. The voyage, amount of cargo space…

Pod Propulsion

Pods are devices which combine both propulsive and steering functions in one device. They are usually located below the stern of a ship, making use of the following internal components: a fix pitch propeller, shaft, thrust and support bearings…

Port Authority

A port authority operates ports and other transportation infrastructure for a special-purpose district. Whether operated directly by the government or in cooperation with government agencies, North American port authorities are public entities and are governed by a board or commission.


Marine salvage is the process of rescuing a ship, its cargo, or other property from peril. Salvage encompasses rescue towing, putting out fires, patching or repairing a ship, refloating a sunken or grounded vessel, moving a disabled vessel in order to clear navigation channels…
Marine News takes a deep dive into the U.S. offshore wind industry, where stakeholders across the supply chain—on land and at sea—can expect a raft of new challenges and opportunities.
Read the Magazine

ZF Marine Transmissions are a Top Choice for Offshore Vessels

Jones Act Uncertainties Persist in US Offshore Wind

Subscribe for
Maritime Reporter E-News

Maritime Reporter E-News is the maritime industry's largest circulation and most authoritative ENews Service, delivered to your Email five times per week