Stainless Steel News

Pic: A probehead for taking gas samples in hot gas atmosphere, produced at the thyssenkrupp TechCenter Additive Manufacturing. It is additive manufactured from austenitic heat resistant steel, and has a longer service life due to integrated cooling channels. Image courtesy of thyssenkrupp

Thyssenkrupp Wins 3D Printing Approval

GL has awarded its Approval of Manufacturer certificate, and I would like to congratulate thyssenkrupp on this achievement,” says Geir Dugstad, Director of Ship Classification & Technical Director of DNV GL – Maritime.The approval covers the 3D printing and processing of austenitic stainless steel parts. Certification was also awarded for the acceptance process in accordance with EN 10204 and the associated product information, particularly the chemical and physical material characteristics. Approvals for individual special components are also being prepared.“We are delighted that

Image courtesy of the Ocean Exploration Trust/Nautilus Live

#Oi2020 History

tandem with another “workhorse” ROV known as Hercules. As a “tow sled” designation, Argus is suspended at the end of a steel-armored fiber-optic cable that is tethered to NOAA’s E/V Nautilus at the sea surface. Because Argus lacks a buoyancy module and is built of heavy stainless steel, its movements are controlled by moving the ship or raising and lowering the cable. A short 100-foot tether connects Hercules to Argus. By keeping the tether between Argus and Hercules slack, Argus can then absorb the brunt of any ship movements, so that Hercules can remain stable and collect

Photo: OSIL

Increasing Global Demand for OSIL Sediment Grabs

Veen grab (available in various sizes and bucket configurations), with recent shipments going to academic and government organizations, as well as commercial outfits, for use on site investigations, baseline surveys, dredge monitoring and deep sea mining projects. All grabs are manufactured from 316 Stainless Steel with optional ballast weights available for increased penetration, as well as landing tables to aid sample recovery for more complex designs. Bucket sieves and sieving tables are also available.The robust sediment grab range compliments OSIL’s catalog of larger sediment sampling equipment

Photo: MacArtney Group

MacArtney Unveils New Connectors

Group has launched its latest connectivity series, TrustLink Metal Shell Connectors, now in stock across the globe.The TrustLink (MS) series includes cutting-edge power and signal connectivity solutions for critical subsea and offshore applications. The TrustLink MS series is manufactured from stainless steel and comes in three shell sizes compatible with industry standards. Suitable for the harshest of marine environments due to their rugged reliability and high-density these compact modular designed connectors are easy to use and designed to fit where limited space is a factor, the manufacturer

Photo: Teledyne

Teledyne Bowtech: Lamps for the Five Deeps Expedition

achieve all of the above, significant and considerable analysis and testing was conducted to ensure suitability and reliability in the field.Developed from the standard LED-V-Series lamp, the LED-1153 is a high quality underwater floodlight constructed from hard anodized 6082-T6 aluminium and 316L stainless steel with an acrylic window. The LED-1153 is pressure compensated with silicon fluid and has a maximum operating depth of 11,000 meters. Due to its complex and bespoke design, it must be used in conjunction with a pressure compensation system

Installation of water level measuring station, Schleswig-Holstein Wadden Sea (Photo: MacArtney)

New Water Level Measuring Stations in the Wadden Sea

data by utilizing an ultrasonic wind speed and direction sensor. Five of the units included pressure sensors to determine the changing water levels for the purposes of data collection, with the further use of the results for hydrodynamic modeling.These measuring stations each consist of a 2.5 m long stainless steel pole that is vertically anchored in the tidal flats. The pressure sensors are positioned approximately 20 cm above the seabed to determine the changing water levels. On the upper part of the pole, protected by stainless steel housing, are the secure and waterproof mounted Tide Master device

Photo: OSIL

OSIL Supply US Antarctic Program with Multi Corer

assessment worldwide. The corer is universally acknowledged as being the only way of reliably collecting a truly undisturbed sediment sample from the seabed.The multiple corer is hydrostatically damped to control the speed of descent of the core tubes into the sediment, and is constructed from stainless steel. The system features detachable core assemblies, which enables the core tubes (or if necessary the entire core tube assembly) to be removed from the corer for analysis or storage. The core tubes are sealed top and bottom once the sample has been taken, allowing rapid retrieval of the corer without

Photo: Thordon Bearings

Mooring Installation Highlights Thordon's Range

system is now successfully operating offshore Libya.”One recent renewable energy project included the installation of Thordon bearings for the main turbine shafts of the 2MW OCEAN_2G tidal energy platform launched by Spain’s Mgallenes Renewables last year in Vigo bay, Spain.A specialized stainless steel cladding solution was chosen to protect the 600mm (23.622”) diameter shaft, and Thordon’s COMPAC elastomeric polymer alloy bearings were selected to ensure the longest possible life in an unpredictable and demanding open ocean environment.George Morrison, Thordon Bearings’

New Model 810 Pneumatic and Hydraulic Industrial Fluid Rotary Union (Image: Moog Focal)

Moog Focal Rolls Out New Fluid Rotary Union

rolling element bearings, ideal for long endurance applications and low maintenance. Filled PTFE based seals run on a hardened surface to provide long service life, minimizing frictional heat generation and operational torque. For marine applications, the Model 810 is available in hybrid and fully stainless steel versions for added corrosion protection. This Fluid Rotary Union can be easily combined with Moog electrical and optical slip rings, contains pass isolation and cross channel flow prevention, and has been tested up to 5 million revolutions

(Image: SOURIAU)

New Range of Underwater Connectors

marine energy and oceanographic research with its range of connectors which are watertight, reliable and long-lasting thanks to their mechanical robustness and resistance to vibration, shock and corrosion. For its marine connectors, SOURIAU uses many different kinds of material such as bronze, stainless steel, titanium and Super Duplex steel. As well as custom products developed in collaboration with customers, we offer connector ranges suitable for most applications.Vincent Mansour, Product Manager Marine, said, "Marine connectors contribute to system reliability by facilitating maintenance

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