LNG Terminal Forgings — Cryogenic Valve Bodies, Flanges & Pipeline Fittings for −162°C Service
Shivam Forge manufactures cryogenic-grade forgings for LNG (liquefied natural gas) liquefaction and regasification terminals — valve body and flange forgings in 9% nickel steel and 304L/316L stainless steel, rated for the −162°C liquid natural gas storage and process temperature, alongside carbon steel forgings for ambient-temperature balance-of-plant piping. ISO 9001:2015 certified, EN 10204 3.1/3.2 documentation, ASME B16.5/B16.34 cryogenic service compliance. Rajkot, India. Call +91-9265772827.
Liquefied natural gas is stored and transported at approximately −162°C, the temperature at which methane transitions to liquid form at atmospheric pressure — a cryogenic condition that most standard carbon and low-alloy steels cannot reliably withstand, since these materials undergo a ductile-to-brittle transition at low temperature that can cause catastrophic, sudden fracture under conditions that would produce only gradual, predictable deformation at ambient temperature. LNG liquefaction trains, storage tanks, and regasification terminal equipment therefore require specific cryogenic-qualified materials for any component in direct contact with liquid or cold-vapour natural gas: 9% nickel steel (which retains ductility and impact toughness down to −196°C, making it the historic standard for LNG storage tank construction) and austenitic stainless steels (304L/316L, inherently resistant to low-temperature embrittlement due to their face-centred-cubic crystal structure) dominate cryogenic LNG service, while conventional carbon steel remains appropriate for ambient-temperature balance-of-plant piping and structural components elsewhere in the terminal.
Forged flanges in 9% nickel steel, retaining Charpy impact toughness at −196°C, for LNG storage tank piping connections and cryogenic process piping — the historically dominant material for LNG cryogenic service given its established track record and cost advantage over stainless alternatives at scale.
Forged valve body components for LNG isolation, control, and safety relief valve applications, in 9% nickel steel or 304L/316L stainless steel depending on the specific valve design and manufacturer material standard, engineered for reliable sealing and mechanical integrity at cryogenic operating temperature.
Forged flanges for LNG carrier loading/unloading arm systems and marine jetty piping, components subject to both cryogenic temperature and the mechanical cycling of frequent connect/disconnect operations during vessel loading and unloading.
Forged flange components for regasification terminal vaporizer equipment, spanning the cryogenic inlet (liquid LNG) and progressively warmer outlet (regasified natural gas) conditions across the vaporization process.
Standard carbon and alloy steel forgings for ambient-temperature balance-of-plant piping, structural, and utility systems throughout the LNG terminal that do not experience direct cryogenic exposure.
Charpy V-notch impact testing at cryogenic test temperature (down to −196°C as applicable) verifying material toughness meets the ductile fracture behaviour LNG cryogenic service requires, with results documented as part of material certification.
Forged flanges and valve bodies manufactured to support ASME B16.5 (flanges) and B16.34 (valves) dimensional and pressure-temperature rating compliance, with material qualification aligned to LNG industry-specific cryogenic service requirements.
Material test certificates per EN 10204 3.1 as standard, with 3.2 third-party witnessed certification available, including full Charpy impact test result documentation for cryogenic service material qualification records.
Full batch-to-billet material traceability supporting the rigorous documentation standards LNG terminal EPC contractors and classification societies require for safety-critical cryogenic service components.
LNG (liquefied natural gas) terminal infrastructure — both liquefaction facilities that cool natural gas to −162°C for efficient ocean transport, and regasification terminals that warm imported LNG back to gaseous form for pipeline distribution — represents one of the most materials-engineering-demanding segments of the global energy infrastructure buildout, precisely because the temperature extremes involved eliminate many otherwise-standard industrial materials from consideration. The ductile-to-brittle transition that affects most carbon and low-alloy steels at low temperature isn't a marginal engineering consideration in LNG service; it is the central materials selection criterion that determines which alloys can be safely specified for any component in direct or near contact with liquid natural gas.
9% nickel steel earned its position as the LNG industry's historic standard material through a combination of proven cryogenic performance and favourable economics relative to fully austenitic stainless steel alternatives — the nickel content modifies the steel's crystal structure sufficiently to suppress the brittle fracture mode that plain carbon steel exhibits at cryogenic temperature, while remaining substantially less expensive than 304L/316L stainless steel at the large material volumes LNG storage tank shells and major cryogenic piping systems require. This cost advantage matters enormously at LNG project scale, where storage tanks alone can require thousands of tonnes of qualified cryogenic steel.
Global LNG trade has expanded substantially over the past decade as natural gas has gained prominence both as a lower-carbon transition fuel relative to coal and oil, and as a strategically important energy source following recent geopolitical disruptions to established pipeline gas supply routes — driving sustained new liquefaction and regasification terminal construction across North America, the Middle East, East Africa, and Asia-Pacific import markets, alongside expansion of existing terminal capacity. This sustained infrastructure investment translates directly into ongoing demand for the cryogenic-qualified forged valve, flange, and piping components LNG terminals require throughout their multi-decade operating life.
For LNG terminal EPC contractors, valve and equipment manufacturers sourcing cryogenic-qualified forged flanges, valve bodies, or piping components in 9% nickel steel or 304L/316L stainless steel, Shivam Forge provides Charpy impact-tested material with full EN 10204 3.1/3.2 documentation. Contact our engineering team at +91-9265772827 or sales@shivamforge.com with your drawing and cryogenic service specification for a manufacturability review and quotation.
LNG is stored at approximately −162°C, and most standard carbon and low-alloy steels undergo a ductile-to-brittle transition at low temperature that can cause sudden, catastrophic fracture. Cryogenic-qualified materials like 9% nickel steel and austenitic stainless steel (304L/316L) retain ductility and impact toughness at these temperatures, making them the required materials for any LNG-wetted component.
9% nickel steel is a specialty alloy steel that retains Charpy impact toughness down to −196°C, well below LNG's −162°C storage temperature, while offering a cost advantage over stainless steel at the scale LNG storage tanks and major cryogenic piping require — making it the historically dominant material for LNG tank construction and cryogenic piping.
Yes. Forged valve body and flange components for LNG loading arm and marine jetty piping systems, in 9% nickel steel or 304L/316L stainless steel, engineered for both cryogenic temperature exposure and the mechanical cycling frequent vessel loading/unloading operations impose.
Yes. Charpy V-notch impact testing at cryogenic test temperature (down to −196°C as applicable) is performed and documented as part of material certification, verifying the ductile fracture behaviour LNG cryogenic service requires.
Yes. Standard carbon and alloy steel forgings for ambient-temperature balance-of-plant piping, structural, and utility systems throughout the LNG terminal that don't experience direct cryogenic exposure, alongside our cryogenic-grade product line.
Why Choose Shivam Forge
Shivam Forge delivers precision hot-forged components from our integrated Shapar, Rajkot facility — covering forging, CNC machining, heat treatment, and quality inspection under one roof.
