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 April 2015 Digital Edition
FREE Maritime Reporter Subscription
Latest Maritime News    rss feeds

New Products

Apply Now for the MN 100

The August 2015 edition of Marine News, the leading voice in the North American workboat market, will feature 100 leaders and innovators, including workboat owners and operators,

MMT Presents Surveyor Interceptor ROV (SROV)

At Ocean Business in Southampton  MMT´s key topic was the new Surveyor Interceptor ROV (SROV). Together with its Norwegian partners Reach Subsea AS, MMT developed a new generation,

GAC's Hull Cleaning Solution Debuts in Singapore

GAC EnvironHull’s eco-friendly, diver-free hull cleaning technology makes its Asian debut at this year’s Sea Asia exhibition, marking its introduction at one of the world’s busiest ports, Singapore.

Shipbuilding

Norwegian Car Carriers to Buy Two from Hyundai Samho

Oslo-listed Norwegian Car Carriers (NOCC) has signed a contract with Hyundai Samho Heavy Industries for the construction of two 6500 ceu Pure Car Truck Carrier (OCTCs).

Boatbuilding in China

While much of the focus on coverage of the Chinese shipbuilding industry is on big shipbuilding, Maritime Reporter switches gears this month to explore activities in select boatbuilding sectors.

HMS Prince of Wales Bridge Sets Sail

The bridge section of the second Queen Elizabeth Class aircraft carrier set sail today from Glasgow on its first sea voyage to Rosyth.   Upper Block 07 is where

Tanker Trends

APM Maasvlakte II Terminal Opens

APM Terminals Maasvlakte II held a ceremony  to celebrate the opening of the world’s most automated container terminal.   The  event that was attended by Dutch

MISC Says AET Tankers Unit Not for Sale

MISC Berhad issued a statement today addressing recent market speculation that the company is set to sell its wholly owned petroleum tanker subsidiary AET Tankers.

Strong Tanker Market Extends Peak Season High Earnings

Tanker earnings for crude oil tankers have climbed to new strong levels in the first quarter of 2015, with averages not seen since 2008, the Baltic and International Maritime Council (BIMCO) reported.

Vessels

5th Floating Accommodation for Lerwick

A further accommodation ship, Ocean Atlantic, is due at Lerwick on Monday 27 April 2015 and is on its way from Portland in Dorset. As with the other floating accommodation at the port,

IMO Calls for Environmentally Sound Ship Recycling in Bangladesh

The  International Maritime Organization (IMO) and the government of the People’s Republic of Bangladesh are jointly implementing a project entitled “Safe and

Zim Offers Asia-US east coast service via Suez

Israeli liner carrier Zim Integrated Shipping Services is launching a new service between Asia and the U.S. East Coast via the Suez Canal at the end of May.   The

 
 
Maritime Careers / Shipboard Positions Maritime Contracts Maritime Security Maritime Standards Navigation Pipelines Port Authority Ship Electronics Ship Simulators 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: 0.1269 sec (8 req/sec)