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 Reporter September 2014 Digital Edition
FREE Maritime Reporter Subscription
Latest Maritime News    rss feeds

Shipbuilding

New Standard for LNG Cargo Containment Systems

Wilhelmsen Technical Solutions (WTS) said it has successfully completing the gas trial for the first LNG carrier built to a Boil Off Rate (BOR) of 0.08% per day.

Messer to Debut MetalMaster Xcel

Messer Cutting Systems said it has answered the call from manufacturers that have been demanding a faster, more accurate way of producing cut parts. Messer’s

Rolls-Royce Expands in the Canary Islands

Rolls-Royce announced it has signed a cooperation agreement with the Astican Shipyard in Las Palmas, Canary Islands that it said will enhance the service capabilities

Tanker Trends

New Standard for LNG Cargo Containment Systems

Wilhelmsen Technical Solutions (WTS) said it has successfully completing the gas trial for the first LNG carrier built to a Boil Off Rate (BOR) of 0.08% per day.

Nordic American Offshore Declares Dividend

Nordic American Offshore Ltd. today announced that its board of directors has declared a dividend of $0.45 per common share for the third quarter 2014. This is the same as for the second quarter 2014.

GAO: Ending Crude Export Ban Could Ease 'Price at the Pump'

As the energy profile of the U.S. continues to improve and evolve daily, fresh debate in favor of exporting oil and gas products -- which would have a significant impact on the U.

Vessels

New Standard for LNG Cargo Containment Systems

Wilhelmsen Technical Solutions (WTS) said it has successfully completing the gas trial for the first LNG carrier built to a Boil Off Rate (BOR) of 0.08% per day.

Cruise Ship Returns to Texas after Ebola Concern

The Carnival Magic cruise ship was en route back to the United States on Saturday with a passenger from Texas who might have handled specimens of the first Ebola

'New Tango' Brings More Post-Panamax Ships to Charleston

New service expands Port of Charleston's capacity to serve North-South trade The SC Ports Authority today received the first ship call of a new consolidated

 
 
Maritime Careers / Shipboard Positions Maritime Contracts Maritime Security Naval Architecture Offshore Oil Pipelines Pod Propulsion Ship Repair Sonar Winch
rss | archive | history | articles | privacy | terms and conditions | 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: 0.1230 sec (8 req/sec)