N'GENIUS for the LNG Industry

Supporting the Next Generation of LNG Infrastructure.

The global liquified natural gas (LNG) market is expanding rapidly, driven by increasing energy demand, the transition to lower-carbon fuels and the need for a flexible, secure energy supply for industry, transport and residential use. This growth is driving the development of larger, more complex offshore and onshore facilities where performance, safety and efficiency are critical.

Whether it is for transportation by carriers to onshore receiving terminals for regasification and injection into natural gas pipelines for distribution, or for floating LNG (FLNG) facilities and floating storage regasification units (FSRUs), material performance is fundamental to long-term reliability and project success.

The N'GENIUS Series^TM has been developed to meet these demanding, ever-evolving, LNG requirements.

The LNG industry operates under some of the most demanding material conditions in the energy sector.

Liquefaction, storage, and transport of natural gas at cryogenic temperatures (approximately -162°C) requires materials with exceptional ductility and toughness. Many conventional materials lose ductility and toughness at these temperatures, increasing the risk of sudden catastrophic failure in critical systems such as piping, storage tanks, and process equipment. In addition, LNG facilities are often subject to complex thermal cycling during start-up, shutdown, and loading operations, placing further stress on materials and welded joints. Ensuring consistent performance under these extreme and fluctuating conditions remains a fundamental engineering challenge.

Alongside cryogenic performance, LNG infrastructure must also withstand highly corrosive environments, particularly in offshore and coastal installations where exposure to chlorides and harsh process conditions is common. Materials must resist pitting, crevice corrosion, and stress corrosion cracking (SCC) over long service lifetimes, often more than 30 years. At the same time, there is increasing pressure to reduce cost, weight and CO₂ emissions, pushing designers towards thinner sections and more efficient structures with optimised weight savings. Balancing these competing demands makes material selection a critical factor in the safe, reliable and economic delivery of LNG projects with improved sustainability.

Alloys from the N'GENIUS Series^TM address these challenges.

The N'GENIUS Series^TM contains an vast number Alloy Types and Variants, providing a wide range of advanced material solutions for all LNG projects.

Design Engineers can select grades from this wide selection of alloys, all of which have a unique combination of mechanical and corrosion resistance properties and provide significant advantages.

Performance benefits of the N'GENIUS Series^TM Alloys and Variants for LNG projects include:

Alloys from the N'GENIUS Series^TM can be widely specified and utilised for Upstream Oil, Gas and condensate projects in the harshest of service conditions and process environments, including those containing high Chlorides, CO₂ and H₂S, and across the entire Downstream LNG value chain.

With excellent ductility and toughness at cryogenic temperatures, the N'GENIUS Series^TM provides the best value engineering solution for all LNG applications, benefiting from higher mechanical strength properties, which allow for reduction in wall thickness and weight savings, lower transportation costs, shorter fabrication times and reduced CO₂ emissions. The superior corrosion performance extends the life of major projects thus resulting in improved sustainability.

As such, typical suitable applications include:

Offshore Oil and Gas production (UPSTREAM)

• Offshore FPSO's, FSO's, Fixed platforms & FLNG vessels for shallow water, deep water and ultra-deep water or Onshore Projects - the N'GENIUS Series^TM Alloys and Variants are the optimum solution for high-pressure, high-temperature (HPHT) service oil, gas and condensate projects, with harsh service conditions containing extremely corrosive process fluids. Such projects frequently contain high Chlorides, CO₂ and H₂S, and require a minimum of 30 years design and service life of the fields. Typical applications include process piping systems, seawater cooling and firewater piping systems, heat exchangers, pumps, valves, manifolds, separators, pressure vessels, tanks and chemical injection systems.
• Subsea and Onshore production systems - where there is direct contact with produced fluids that are high in Chlorides, CO₂ and H₂S, the N'GENIUS Series^TM offers the most comprehensive range of alloys to solve any design issues. Typical applications include pipelines, flowlines & jumpers, risers (rigid & flexible) and engineered products and equipment including pumps, valves, manifolds, and wellheads.
• Control systems & small-bore tubing, including instrumentation tubing, hydraulic lines and umbilicals.

Offshore LNG processing and storage (MIDSTREAM)

• Cryogenic production and storage systems - where ductility and toughness at -162°C and resistance to marine corrosion is key.
• Marine transfer and loading systems - such as transfer piping between vessels and storage.

Onshore LNG processing plants/export terminals (DOWNSTREAM)

• Onshore Liquefaction (LNG) plants - which require significant infrastructure and large sites. The onshore LNG plants deal with major considerations such as higher security and safety requirements concerning environmental issues. Onshore LNG plants require very significant processing facilities, LNG trains, large scale storage tanks, engineered products and ancillary equipment.
• Impurities in raw wet fluids (CO₂, H₂S, water and other constituents), are processed and stripped out at the source of extraction. The clean gas is transported through an extensive network of pipelines to the onshore LNG processing facility. The gas is compressed and cooled using various techniques such as mixed refrigerant processes or cascade cycle technology. The LNG is stored in cryogenic tanks and is loaded onto carriers for shipping to its destination.

LNG transportation

• LNG carriers and transport vessels - which are designed to include safe LNG cargo containment, cryogenic piping systems, valves and pump housings.
• ISO containers and trucking - specifically designed and engineered with double-walled cryogenic tanks, transfer hoses and fittings.

Import Receiving Terminals

• Regasification terminals (import receiving facilities) - specifically designed with high-pressure piping systems.
• Balance of Plant (BOP) - include pumps and compressors, valves and fittings, flare and vent systems, firewater and seawater piping systems.

The following table presents a small selection of some of the N'GENIUS^TM Alloys and Variants that are well suited for various Upstream Oil, Gas and Condensate and Downstream LNG applications: