ClassNK Approves Duplex Stainless Steel Tankers

Press Release
Wednesday, March 27, 2013

ClassNK announced  that it has approved the first application of duplex stainless steel (NSSC 2120) on vessels in Japan.

 

Tankers built by the Japanese shipyards Sasaki Shipbuilding Co., Ltd and Hakata Shipbuilding Co., Ltd were applied with the duplex stainless steel, which was manufactured by Nippon Steel & Sumikin Stainless Steel Corporation. The two domestic vessels, a chemical tanker and an oil tanker, were launched on January 17, 2013.


The cargo tanks for use in chemical tankers built in Japan are generally constructed with austenitic stainless steel SUS304. However, with a nickel content about one quarter of that of SUS304, the newly approved austenitic-ferrite two-phased stainless NSSC2120 can now also be applied to chemical tankers as a substitute for SUS304 for first time in Japan.


Pitting corrosion resistance to sea water and corrosion resistance to acids of NSSC2120 are equal to or greater than those of SUS304. In terms of strength, NSSC2120 is almost twice as strong as SUS304 at 0.2% proof stress under NK Rules. Furthermore, NSSC2120 has weldability equivalent to that of SUS304 when CO2 gas shielded arc welding or submerged arc welding is applied.

Maritime Today


The Maritime Industry's original and most viewed E-News Service

Maritime Reporter July 2016 Digital Edition
FREE Maritime Reporter Subscription
Latest Maritime News    rss feeds

New Products

Servowatch to Debut New Software at SMM

Integrated ship control systems supplier Servowatch said it will use SMM to launch its new automation and control software, WINMON 9.   WINMON 9 is a singular,

Buy and Sell Vessels from a Mobile Device

The maritime software development company SDSD are launching a new web based VSnP - Vessel Sale and Purchase module, enabling Sale and Purchase brokers to buy and

Ecofix Filler Coat Cuts Rudder Repairs Cost

With an increasing trend for thruster and rudder manufacturers finishing their products with self-cleaning protective hard coatings, Antwerp headquartered Subsea

Shipbuilding

Bay-Houston's New Escort Tug Launched

Eastern Shipbuilding Group, Inc. has launched Laura B, the final vessel in a series of four Robert Allan, LTD. (RAL) designed Z-Tech 2400 Class terminal and escort

Damen Presents Decommissioning Vessels Concept

Damen Shipyards Group has announced its latest concept design: the Damen Decommissioning Series. The vessel will specialize in three core areas of the oil and gas

India Govt, Cochin Shipyard Pact on FY17 Growth Targets

Cochin Shipyard Limited (CSL) has entered into a Memorandum of Understanding (MoU)  with the government of India for the ongoing fiscal under which targets agreed

Tanker Trends

NASSCO Delivers Garden State to APT

Marking its seventh ship delivery in the span of just over a year, General Dynamics NASSCO has delivered the newly built ECO Class tanker Garden State for American Petroleum Tankers.

Bahri Q2 Net Profit Soars

National Shipping Company of Saudi Arabia (Bahri), the exclusive oil-shipper for Saudi Aramco, reported a 47.2 percent increase in second-quarter net profit on Tuesday.

First LNG Vessel Transits Expanded Panama Canal

Today, the Panama Canal marked another milestone with the transit of the first-ever liquefied natural gas (LNG) carrier through its expanded locks.   Shell-chartered

Coatings & Corrosion

Ecofix Filler Coat Cuts Rudder Repairs Cost

With an increasing trend for thruster and rudder manufacturers finishing their products with self-cleaning protective hard coatings, Antwerp headquartered Subsea

SCIGRIP Transforms Hovercraft Assembly Process

Griffon Hoverwork, a designer and manufacturer of technically advanced hovercrafts, has collaborated with SCIGRIP, the global supplier of smarter adhesive solutions,

Ecospeed Demonstrator Vessel on Display

Shipowners, shipbuilders and representatives from the Green Award Foundation  attended the first in a series of planned ‘roadshows’ Subsea Industries has initiated

Vessels

Bay-Houston's New Escort Tug Launched

Eastern Shipbuilding Group, Inc. has launched Laura B, the final vessel in a series of four Robert Allan, LTD. (RAL) designed Z-Tech 2400 Class terminal and escort

Oil Spills from VLOC in Strait of Malacca

Berge Bulk Maritime confirms that an its VLOC (Very Large Ore Carrier)  “BERGE BUREYA” – (IMO/LR # 9297539) operated vessel was involved in an oil spill incident

CNCo Orders Remote Monitoring for 35 Vessels

Radio Holland, a global NavCom and service company in the maritime industry, said it has concluded  a maintenance and remote monitoring agreement with The China

 
 
Maritime Careers / Shipboard Positions Maritime Security Maritime Standards Navigation Pipelines Pod Propulsion Ship Repair Ship Simulators Sonar Winch
rss | archive | history | articles | privacy | contributors | top maritime news | about us | copyright | maritime magazines
maritime security news | shipbuilding news | maritime industry | shipping news | maritime reporting | workboats news | ship design | maritime business

Time taken: 0.0822 sec (12 req/sec)