Energy

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Our steel materials are used in the whole supply chain of energy, such as natural gas, from excavation to transportation to storage to consumption.

The following steel materials are working all over the world: oil well pipes used for resource development, line pipes for product transportation, thick plates for storage tanks, and special pipes used at petrochemical plants and power generation plants.

Through these advanced products, Nippon Steel Group is contributing to energy development in the fields that have been considered to be difficult and high-efficiency energy utilization, and we are conducting stable energy supply that is essential to general consumers’ lives.

from use section
from purpose
High-alloy Tubing
Drilling~Production
Production Weight reductions

Since oil well pipes for mining are exposed to very harsh environments, NIPPON STEEL has developed a super-high-strength high-alloy tubing excellent in corrosion resistance.
In addition, we have improved the production efficiency of natural gas and established a production technology for a large-diameter long-size high-alloy tubing that reduces the gas field development cost.

Premium Connections
Drilling~Production
Production Weight reductions

Gas-tightnesst connections without damage under harsh environments is required. VAM™21, which shows stable performance even in natural gas fields of great depth, has been used for development of the North Sea gas field. It is highly acclaimed as the world's highest-level premium connections.

SM-125S
Drilling~Production
Production Weight reductions

It is the world-first sour-resistant tubing and casing with a maximum strength of 125 ksi class (yield strength of 862 Mpa class) and was implemented by NIPPON STEEL in 2003. It has enabled development of a high-corrosion-resistance well of 4,000 to 6,000 meters class, which has not been conventionally achieved.

CLEANWELL® DRY
Drilling~Production
Production Reduced life-cycle costs Shortening of lead times Reduction in manufacturing costs

It is a joint technology that has enabled gas-tightness without using thread compounds, normally used at connections, by forming a solid film at the inner surface of the thread and the pipe end thread. This has eliminated the need for cleaning and application of grease, and enabled the development of clean oil/gas that does not discharge environmentally hazardous substances such as lead or zinc contained in thread compounds.

Ultra-thick high-strength steel for jack-up rigs
Drilling~Production
Jack Up Rig Weight reductions

The jack-up rig is a drilling system that places the legs on the seabed during mining, lifts the platform to a height not affected by waves, lowers the platform to sea level, floats it for movement, and tows it with the legs lifted. Since the legs support a very large weight, ultra-thick high-strength steel is used.
High-tensile-strength steel for offshore structures
Drilling~Production
Jack Up Rig Plat Form Expansion of the development area Weight reductions

Offshore structures that produce oil/gas require high safety because operators live there for production activity. Along with change of the development region, use of high-tensile-strength steel for large-sized refining equipment, and use of low-temperature material for production in cold regions has increased. With supply of steel materials satisfying these requirements, we continue to support the oil/gas fields in the world.
Medium/high-temperature/heavy steel plate
Drilling~Production
Plat Form Shortening of lead times Reduction in manufacturing costs

In the oil-refining process, operating conditions tend to become high temperature and high pressure to improve reaction efficiency. Ultra-thick heavy steel plate, which is excellent in high-temperature performance for various reaction vessels used in refineries, has been used.
Low-temperature-toughness H-shaped steel
Drilling~Production
Jack Up Rig Plat Form

High safety against fracture is required for members of ocean structures even under super-cold environments. To meet these needs, we have developed low-temperature-toughness H-shaped steel for ocean structures that can keep sufficient toughness up to -40°C. It has already been used for multiple projects.
Hyper beam™
Drilling~Production
Plat Form Expansion of the development area

With a constant beam height and beam width, the design was simplified and efficient processing was achieved. With a number of size selections and thin webs, steel weight can be reduced further than normal H-shaped steel. A size of 1,000 mm maximum in beam height and 400 mm maximum in beam width is available. This can be used for large structures.
Construction of ocean platforms
Drilling~Production

NIPPON STEEL Engineering has a number of experiences in design, machining, and construction of platforms for oil and gas projects. We have a proven record of 40 years or more mainly around Southeast Asia, and we have accumulated platform construction technology and know-how under harsh environments.
Construction of seabed pipelines
Drilling~Production

The NIPPON STEEL Group has established a system to not only develop steel material but also assist the construction field including construction of subsea pipelines. NIPPON STEEL Engineering has made successful achievements for a number of constructions using the Derrick Lay Barges, Kuroshio and Kuroshio 2, which have a high-performance function of laying subsea pipeline.
High-strength line pipe
Drilling~Production
Under Sea Expansion of the development area Weight reductions Reduced life-cycle costs

Our high-strength line pipe with high reliability in quality can allow high-pressure/highly-efficiency transportation of mining energy including development of oil/gas fields in deep-sea areas and reduces the pipeline construction cost.

Tendon Pipe
Drilling~Production
Under Sea Weight reductions

Our tendon pipe, which is excellent in weldability, strength, availability of heavy wall thickness, high dimensional accuracy, and fatigue resistance has been acclaimed by many users including oil majors for its high safety and reliability in quality. It has been widely used for world-wide TLP (tension leg platform used for development of deep-sea oil/gas fields).

Super duplex stainless steel pipe
Drilling~Production
Under Sea Weight reductions Reduced life-cycle costs

One of the products used for high-alloy tubing. It has excellent resistant to CO2 corrosion up to 250°C.
DLP™ wire
Drilling~Production
Under Sea Shortening of lead times Reduction in manufacturing costs

With inline heat treatment, customers' heat treatment process (LP, lead patenting) can be omitted. It is a wire excellent in balance of strength, toughness, and ductility, and it contributes to reduction in lead time, CO2, etc.
S-TEN™
Drilling~Production
FLNG Reduced life-cycle costs

S-TEN™ was developed for welding structures that are resistant to sulfuric acid dew-point corrosion. S-TEN1 is effective for sulfuric acid dew-point corrosion and hydrochloric acid dew-point corrosion. Various selections of hot-rolled steel sheet, cold-rolled steel sheet, piping, and welding materials are available.
MARILOY™
Drilling~Production
FLNG Reduced life-cycle costs Shortening of lead times Reduction in manufacturing costs

It is a steel material with addition of 1% chromium to improve corrosion resistance in the ocean. With the addition of chromium, the rust layer on the surface prevents entry of oxygen into the base metal. Progress of corrosion can be half or less compared to normal steel. It is suitable for seawater piping, gas coolers specified for seawater, and ocean structures.
Seamless steel pipe for the chemical industry (stainless steel, Ni-based alloy)
Drilling~Production
FLNG Under Sea Reduced life-cycle costs Shortening of lead times Reduction in manufacturing costs

Stainless steel/Ni based alloy pipe has excellent characteristics in corrosion resistance, heat resistance, and low-temperature property. Conventionally, it has been used as a material under harsh environments in the energy fields of oil refining, petrochemicals, and power/gas.
Stainless steel plate for the chemical industry
Drilling~Production
FLNG Under Sea Reduced life-cycle costs Shortening of lead times Reduction in manufacturing costs

We provide special stainless steels such as SN-1 for nitric acid resistance, DP-28W for urea plants, AH-4 for heat resistance, etc. and also provide stainless steel/Ni-based alloy excellent in corrosion resistance, heat resistance, and low-temperature property. It is used as a material resistant to harsh environments in the energy fields of oil refining, petrochemicals, and power/gas.
Line pipe
transport~Storage

A conduit with pressure of 1 Mpa or more is called a high-pressure pipeline. A special underground tunnel is built to cross rivers/bays, mountain areas, or dense city areas and a pipeline is placed in the tunnel. We provide high-quality and high-pressure pipeline based on the conduit design and construction technology proven by the welding technique from our steel pipe production technology, long-standing record, and technology development.

Proving excellent corrosion resistance performance

We have proven the corrosion resistance performance of Super 13 chrome stainless steel pipe for line pipe jointly with Royal Dutch Shell. We provide not only the product, but also provide improvement of product reliability, reduction of total cost including local construction, and solutions including construction technology.
(Ultra) Low temperature steel for LNG tanks
transport~Storage

Since LNG is stored at a very low temperature of minus 162°C, the storage tank steel plate requires high safety against fracture and strength even at very low temperatures. 9% nickel steel plate excellent in these properties has been used over half a century. While reducing the amount of nickel, which is a rare metal, by about 20%, we have developed 7% nickel steel plate, for the first time in the world,which has high performance equivalent to conventional products.
Nickel steel plate for LNG tanks

Power generation

Supporting expanding LNG demand
Tank sizes have recently become large to improve the storage efficiency. Our ultra-thick 9% nickel steel plate is excellent in toughness at low temperatures and has contributed to large size. Lately, we have developed "7% nickel steel plate" achieving high safety and strength equivalent to conventional steel, while reducing the amount of nickel, for the first time in the world.
Stainless steel pipe for ultra-supercritical-pressure boilers

Power generation

Nippon Steel's international standard materials contribute to improvement in the power generation efficiency
Development and use of our stainless steel pipe SUPER 304H for ultra-supercritical pressure boilers (*) has achieved highly efficient coal thermal power generation using high-temperature and high-pressure steam. It contributes to reduction in CO2 emissions as a global-standard material from Japan.

* Ultra-supercritical pressure boiler: A boiler that is operated at high temperature and high pressure exceeding the critical pressure of water to improve power operation efficiency is called an ultra-supercritical pressure boiler. Ultra-supercritical pressure is used to further improve power generation efficiency by enhancing the temperature/pressure conditions.
Ultra-thick heavy steel plate for medium/high temperatures

Power generation

Supporting a next-generation high-efficiency power generation system
Integrated coal gasification combined cycle (IGCC*) is a next-generation high-efficiency power generation system that greatly improves the power generation efficiency compared to conventional coal thermal power generation. Mainly around the coal gasification facilities of IGCC, our thick plate (180 mm in thickness, 30 tons in single weight) is used for ultra-thick heavy steel plate for medium/high temperatures required in environments up to about 500°C.

* IGCC: Integrated coal gasification combined cycle
Titanium welded pipe/plate for condensers

Power generation

To cool steam with seawater
A condenser is a system that returns the high-temperature high-pressure steam used for operation of steam turbines in thermal power generation plants by heat exchange with coolant. Since a large volume of coolant is used, power generation plants are built near a river or the sea. If seawater is used for coolant, titanium welded pipe/thick plate excellent in corrosion resistance is used.
1,000°C-class heat-resistant stainless steel sheet

Power generation

Supporting high temperature of thermal power generation facilities
Our NSSC™-NAR-AH-4 is reduced Ni compornent around 10% and is improved in resistance to high temperature or oxidation compared with SUS310S which is general austenitic stainless. It is used for heat-resistant structure members of various power generation plants with increasing high temperature mainly as for alternative material of SUS310S.
S-TEN™

Power generation

Preventing corrosion by oxidized substances in exhaust gas
In the exhaust system of coal thermal power generation plants, traces of oxidized substances found in high-temperature exhaust gas generate condensation, resulting in corrosion of materials. Our S-TEN™ shows excellent performance against sulfuric acid/hydrochloric acid dew-point corrosion.
High-corrosion-resistance stainless steel

Power generation

NSSC™ 260 and NSSC™ 270 of Nippon Steel Corporation are products with sulfuric acid-/hydrochloric acid-resistant ions higher than normal stainless steel. They are used for interior stack materials, boiler materials, and materials for flue gas desulfurization (FGD) systems.

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