Features

Steel products with the high functionalities of high strength and high corrosion resistance, etc.

Recently, we have discovered various issues that need to be solved, such as coping with severe transport environments, bulk transport and longer transport distances, and achieving lower cost through weight reduction.
Nippon Steel & Sumitomo Metal Group employs its technological capabilities and human resources cultivated over many years in the development of a wide-variety of high-performance steel products to solve these problems.

For example, together with together with major oil producer Exxon Mobil, Nippon Steel & Sumitomo Metal jointly developed the world's strongest pipeline (X120 standard (tensile strength 915MPa = N/mm2 or greater)). X120 has much-improved economic performance compared with previous products (X70 through X80). Using increased pressure, larger quantities of natural gas can be transported over greater distances. Since the structure itself can save weight, the cost for installation is sharply reduced, which contributes to a stable supply of energy.

Ultra-high strength pipeline "X120," adopted in Canada

We also supplied highly corrosion-resistant and high-strength UO steel pipes for deep-sea use, capable of withstanding pressure and low temperatures, for the world's deepest undersea-class pipeline transporting natural gas from northern Africa to southern Europe and Spain. This pipeline has made a major contribution to the stable procurement of natural gas, and to CO2 reduction in Europe.

  • Nippon Steel & Sumitomo Metal has developed a wide variety of high-performance steel products for shipbuilding.
  • For example, Nippon Steel lines up its "high tensile-strength steel for shipbuilding," which shows excellent mechanical characteristics even for high efficiency, high heat-input welding, along with "steel for ultra-low temperature vessels," which enables navigation even in severe cold areas. This is in addition to "corrosion-resistant steel for shipbuilding," which has high corrosion-resistance performance, etc.
Supplying various high-performance steel products for crude oil tankers

Challenging "anti-sour characteristics," which has enhanced equipment technology power for manufacturing high-functionality steels

  • To manufacture highly functional steel products, not only continual technical development but equipment technology prowess are necessary. This equipment technology prowess has been improved during challenges regarding "anti-sour characteristics."
  • Oil and gas contain corrosive substances, such as "hydrogen sulfide (H2S)," which could cause "hydrogen-induced cracking". To reduce the generation of MnS in steel that becomes the cause of cracking, the following production process is necessary.
Process for improving anti-sour characteristics
  • In the steelmaking process, the content of sulfur (S) is reduced to a limit value of 10 ppm or less (usually 30-100 ppm), in order to increase the purity, and in addition, calcium (Ca) is added to render residual small amounts of S harmless (CaS), thereby preventing elongation of non-metal inclusions during the rolling of steel products.
  • In the manufacturing process, accurate control is executed during continuous casting through to the rolling/cooling process to reduce the non-homogeneity of metallic structures that causes a decrease in hydrogen-induced cracking resistance characteristics.
Points that render MnS harmless and which achieve anti-sour characteristics

Construction of subsea pipelines

  • Nippon Steel & Sumitomo Metal Group not only develops steel products, but also builds develops systems for the construction field (e.g. laying of subsea pipelines).
  • Nippon Steel & Sumitomo Metal Engineering has successfully completed numerous construction operations using a high-performance, large-scale swiveling derrick crane with a pipeline-laying load bearing capability of 2,500tonnes, along with large work barges Kuroshio and Kuroshio 2. These vessels are also equipped with facilities for laying subsea pipelines.
Many long-distance, large-diameter, and high-pressure subsea pipelines for oil and natural gas transportation that require high reliability were constructed.
Subsea pipeline being laid

Accumulation of coke oven gas refining technologies for more than 40 years

  • Since 1970, Nippon Steel & Sumitomo Metal Engineering has constructed coal chemistry plants (e.g. including flue gas desulfurizers) in Japan and overseas primarily on projects within the group.
  • NSE has not only constructed new refining facilities but improved many existing facilities and boosted their capabilities, together with the entrepreneurs involved.
Flue gas desulfurizers for Anyang Iron & Steel Co., Ltd. in China (a NEDO model project) (2003)
Flue gas desulfurizers for Oita Works (2007)

Achievement results by using three processes

Nippon Steel & Sumitomo Metal Engineering has achieved results in refining plants using three processes - NH3/TAKAHAX, the Vacuum Carbonate Method, and the NNF Method.

Process name NH3/TAKAHAX Vacuum carbonate method NNF method
Results 1983: China Baoshan Iron & Steel Co., Ltd., Hirohata, Muroran, Oita, Nagoya, etc. 2003: China Anyang Iron & Steel Co., Ltd. 2006: Kimitsu Works
Final side product Ammonium sulfate Highly purified sulfur Sulfuric acid (concentrated sulfuric acid, diluted sulfuric acid)
Desulfurization method Oxidation method Balanced method Oxidation method
Absorption method Alkali absorption (using NH3 in COG) Alkali absorption (sodium carbonate) Alkali absorption (using NH3 in COG)
Regenerative method Oxidizes the absorbing solutions in air, changes H2S and HCN to S2O3 and SCN salt, and accumulates them in the solution. Changes pressure and temperature to diffuse H2S and HCN in solutions and collects them using acid gas. Oxidizes the absorbing solutions in air, changes H2S and HCN to S2O3 and SCN salt, and accumulates them in the solution.
Catalyst Supply of naphthoquinone sulfonic acid None Supply of picric acid
Desulfurization ratio 90 - 99% 90 - 93% 93 - 99%

Developing and providing materials that meet the severe demands required by natural gas

Nippon Steel & Sumitomo Metal Corporation has developed and is selling a 9% Ni steel with excellent toughness, and able to safely store liquefied LNG at an extreme temperature of -164°C, as well as a Super 9% Ni steel for use with larger storage.

Liquefied natural gas storage tank constructed using Super 9% Ni steel
  • Nippon Steel & Sumikin Stainless Steel Corporation is providing stainless steel plates with excellent corrosion resistance. A complete solution heat treatment is possible by using the newest heat-treating furnace, roller quenching, and spray-type cooling equipment. Furthermore, NSSC has developed steel types that fit various corrosion environments and has prepared technical data for worry-free usage.
LNG tanks constructed using stainless steel plates

Displaying advantages for building receiving/storing plants for natural gas and oil

  • Nippon Steel & Sumitomo Metal Group experience and know-how accumulated through steel making is manifested in the construction of energy plants for natural gas and oil.
  • Nippon Steel & Sumitomo Metal Engineering has constructed numerous LNG-related facilities and gas supply line facilities over the years. It is the only non-power or gas company to import LNG, and is developing its own gas business, giving it abundant engineering know-how in this field.
LNG-receiving facility
Natural gas liquefaction plant

Can construct a natural gas receiving facility with full-turn key order reception

We can receive full-turn key orders by considering not only natural gas supply but business feasibility, through to the basic design of the receiving facility, equipment selection, procurement, construction and trial operation.

Work flow of a natural gas-receiving facility
Recent Major Accomplishments (construction of LNG receiving facility)
Country Details of construction
Japan Full-turn key order reception (receiving, storage, delivery, gasification, BOG treatment, thermal regulation, odorant facility, etc.), expansion of existing facilities
Japan Full-turn key order reception (Full-turn key order reception (receiving, storage, gasification, BOG treatment, odorant facility, etc.), for gas engines
Japan Full-turn key order reception (receiving, storage, gasification, BOG treatment, odorant facility, etc.)

Also handling LNG-receiving sea berths, piping bridges, storage tanks, and gas supply lines

Nippon Steel & Sumitomo Metal Engineering also has comprehensive knowledge and experience in offshore civil engineering and marine steel structures.
NSE can collectively construct a sea berth for receiving LNG, receiving loading arms, piping, and marine surface structures such as piping bridges, or it can propose an optimum method of improving or expanding an existing facility. NSE can also propose an efficient facility by collectively designing the substructure and marine surface structure.

Status of shipments using air casters

NSE has many achievement results for the planning and construction of gas supply lines for power plants, gas supply lines for municipal gas businesses, and LNG storage tanks.

Land gas pipelines
LNG storage tanks

Achieving Japan's first LNG coastal transportation

Nippon Steel & Sumitomo Metal Engineering pioneered coastal LNG transport in Japan. This was achieved through its wealth of experience and know-how, the experience and know-how of other Group companies, and LNG-related technologies, and brought a total engineering solution to the problem covering local LNG vessels, and shipping and receiving facilities.
This system has allowed for the supply of LNG at moderate prices for small- and medium-sized LNG users, who relied only on tankers and rail transport. This system is also desirable from the aspect of a reduction of environmental load.

LNG coastal vessel shipping facility/LNG receiving base

Examples of use

 
Subsea production systems (development of oil and gas fields in deep-sea areas)
Subsea production systems (development of oil and gas fields in deep-sea areas)

Overview of subsea businesses

Subsea refers to a subsea production system (one of the offshore oil/gas field development systems), and here it indicates the production/processing facilities installed on an ocean floor and the entire system connecting a supply facility to a storage facility. This system does not need a large structure, since the facility is installed on an ocean floor, which is different from a fixed platform, etc., thus it is suitable for the development of an oil/gas field in very deep waters or on a small scale.

Recently, the development of oil/natural gas has been shifted to deep-sea areas with a depth of 500 m or more. Development in even deeper waters near 3,000 m has been executed, and approximately 3,000 production facilities have been installed across the world. In the future, much larger expansion is anticipated for development in deep-sea areas.

Production of offshore oil fields and gas fields in more deeper marine areas

Nippon Steel & Sumitomo Metal Engineering has built (design, procurement, implementation) shallow water oil and gas production systems, including fixed platforms and subsea pipelines, in cooperation with bases in Singapore, Thailand, Indonesia, and Malaysia. Since we are also involved in the construction of deep-sea subsea oil and gas field production systems (subsea systems), we have created a subsea business promotion department.

Source of photos of equipment, etc.: JOGMEC, Current status of subsea production systems: SubseaProductionSystem
Source of photos of equipment, etc.: JOGMEC, Current status of subsea production systems: SubseaProductionSystem

The "highly deformable" UO steel pipes of our company were adopted for the SKV pipeline (a trunk line between Sakhalin, Khabarovsk, and Vladivostok), which Gazprom is developing for its businesses.

The technical strength of Nippon Steel & Sumitomo Metal makes it possible to construct pipeline in severe natural environments.
The technical strength of Nippon Steel & Sumitomo Metal makes it possible to construct pipeline in severe natural environments.

Outline

  • The highly deformable UO steel pipes employed in this project are used in an area of severe natural conditions in the Russian Far East, where very low temperatures (-40℃) and crustal deformation is likely to occur.
  • The "high deformability," achieved by using the superb, integral manufacturing technology power that we have built into the steelmaking/steel plate/UO steel pipe processes, was highly evaluated.

Why is the high deformability necessary?

なぜ、高変形能が必要だったのか?
In a partial permafrost zone, the melting and frosting of the frozen ground will deform a pipeline.

World's largest-scale order reception for highly deformable steel pipes

  • The scale of the order for this project (approximately 20,000 tonnes) is the world's largest for highly deformable steel pipes. These pipes are used in a zone of approximately 20 km where crustal deformation is likely, along the main trunk line between Sakhalin, Khabarovsk, and Vladivostok in the Far East.
  • The steel pipes were manufactured on the UO steel pipe line of Kimitsu Works, and arrived in Russia in 2010.
  • NSSMC is continuously supplying steel plate products to the steel pipe company in Russia. We will participate in the Gazprom project by supplying materials for steel pipes (steel plates) and steel pipe products (UO steel pipes), and will continue to contribute to the expansion of the supply of natural gas, which is referred to as "clean energy," in the future.
World's largest-scale order reception for highly deformable steel pipes

Features of the Nippon Steel & Sumitomo Metal Group (Petroleum and natural gas)

Outline

Nippon Steel & Sumitomo Metal received, jointly with Mitsui & Co. Ltd, an order for high-strength UO steel pipes for deep ocean use (large-diameter welded steel pipes) for a natural gas transport pipeline connecting Spain and Algeria (commonly known as the Trans-Mediterranean pipeline).

Perspective of offshore pipelines
Perspective of offshore pipelines

High-strength UO steel pipes of X70 grade are being applied to an ultra-deep ocean location for the first time in the world.

This pipeline is being laid down in deep water reaching the 2,160 m depth maximum (the world deepest-class seabed pipeline), crossing the Mediterranean Sea. The UO steel pipes of X70 grade are being applied to such an ultra-deep sea area for the first time in the world.

The Trans-Mediterranean pipeline, with an overall length of 226km, transports natural gas produced by Sonatrach Petroleum Corporation in Algeria in northern Africa to southern Europe under the Mediterranean Sea. Particularly in Europe, this pipeline construction is positioned as a strategic project indispensable for the stable procurement of natural gas and CO2 reduction, in accordance with the Kyoto Protocol.

Area where the pipeline is laid down
Area where the pipeline is laid down

Steel pipes equipped with compound characteristics of highly technical difficulties that satisfy contradictory performances

  • The project-implementing body is Medgaz, a joint venture of five companies centering on energy companies.
  • The total volume of large-diameter welded steel pipes used for this pipeline was approximately 90,000 tonnes, the majority (50,000 tonnes) being our UO steel pipe, part of which was used in the deepest section.
  • The Trans-Mediterranean pipeline will be subject to an extremely severe laying environment since the UO steel pipes are laid along a route that includes depths on an international scale. Under such an environment, the steel pipes equipped with compound characteristics of highly technical difficulties that satisfy the contradictory performances of high strength for ultra-high water pressure at a 2,200 m depth, the anti-crushing properties of an ultra-thick wall size, and the low-temperature toughness that resists breakage from ocean currents or crustal changes.
  • We consider that our UO steel pipes were chosen because Medgaz highly evaluated the reliability of the quality of our UO steel pipes, which was proven through achievement results, as well as our excellent technology development power.
  • Bringing to bear our technological leadership and superiority accumulated over long years to supply high-performance steel pipes and tubes used in severe environments, in deep-sea, ultra-low temperature, and steep-terrain installation sites, we at Nippon Steel & Sumitomo Metal hope to continue to offer materials solutions for development of the world's natural resources and energy.

Catalogs

Steel Plates

Hot-Rolled Steel Sheets and Coils

STRUCTURAL SHAPES

STRUCTURAL SHAPES (North America ver.)

Pipes & tubes of Nippon Steel & Sumitomo Metal

UO PIPE

Seamless Pipes and Tubes for the Chemical Industry (Stainless Steel and Ni-based Alloys)

Seamless Steel Tubes and Pipes for Boilers

Electric Resistance-welded Steel Tubes for Boilers and Heat Exchangers

SEAMLESS CASING & TUBING

ERW CASING

SEAMLESS STEEL LINE PIPE

HF-ERW

Titanium Products

Special Metal & Alloys

Heat-Resistant Austenitic Stainless Steel

Solution for Offshore Oil and Gas

Used in the following applications

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