ASTM A333 / ASME SA333 Grade 9 Low Temperature Steel Pipe
ASTM A333 / SA333 Gr 9 is a low-temperature alloy steel pipe specification designed for use in cryogenic and sub-zero environments. This grade contains 9% nickel, which provides excellent toughness, ductility, and impact resistance at temperatures as low as –196°C. Its high nickel content makes it ideal for LNG plants, cryogenic equipment, petrochemical industries, and offshore pipelines where extreme cold service is required.
Key Features
- High nickel alloy content (approx. 9%) for cryogenic strength
- Superior impact resistance at extremely low temperatures
- Available in seamless and welded forms
- Good fabricability and weldability
- Extensively used in LNG, petrochemical, and offshore industries
Heat Treatment
- Normalized
- Quenched & Tempered
- Normalized & Tempered
Applications
- LNG plants and cryogenic storage tanks
- Petrochemical and chemical processing
- Offshore oil & gas pipelines
- Shipbuilding and marine applications
- Cryogenic heat exchangers and pressure vessels
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