Super Duplex Pipes
What are 2507 Super Duplex Pipes
2507 Super Duplex pipes are high-alloy stainless steel pipes (UNS S32750) comprising 50/50 austenitic-ferritic structures designed for extreme strength and superior corrosion resistance.They offer high pitting / crevice corrosion resistance in chloride environments, making them ideal for offshore oil / gas, desalination, and chemical processing.
What are SS 253MA Pipes
SS 253MA pipes (UNS S30815) are high-temperature, lean austenitic stainless steel pipes combining high strength with exceptional oxidation resistance up to 1150°C (2102°F).They are alloyed with nitrogen,cerium, and high silicon for superior performance in oxidizing,sulfidation,and carburization environments,making them ideal for petrochemical and thermal processing industries.
Super Duplex Pipes
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Applications of 2507 Super Duplex Pipes
Seawater
Desalination
2507 is the industry standard for high-pressure piping in Reverse Osmosis (RO) plants.It withstands the aggressive pitting and crevice corrosion caused by high-chloride seawater while handling the intense operational pressures required for filtration.
Offshore Oil &
Gas Production
It is used extensively in subsea pipework, manifolds,and firewater systems. Its high yield strength (nearly twice that of 316L) allows for thinner pipe walls,significantly reducing the overall weight of offshore platforms while resisting sour gas and brine environments.
Chemical &
Petrochemical Processing
It is essential for heat exchangers and piping systems carrying highly corrosive fluids,such as dilute sulfuric acid,phosphoric acid,and organic acids mixed with chlorides.It serves as a cost-effective alternative to expensive nickel-based alloys in these volatile environments.
Applications of SS 253MA Pipes
Industrial Furnace
Components
253MA is widely used for radiant tubes,burner nozzles, and thermocouple protection tubes.
Its rare-earth metal (cerium) content forms a thin,tight oxide layer that prevents scaling and metal loss even during rapid temperature fluctuations.
Petrochemical &
Refining Systems
It is essential for high-temperature reactor tubes,such as those used in styrene production and EDC (ethylene dichloride) cracking.It offers superior creep strength compared to standard stainless steels like 310S,allowing for longer service life under high thermal stress.
Heat Recovery &
Power Generation
Used in waste heat boilers,air preheaters,and expansion bellows.Because it remains ductile and resistant to high-temperature corrosion (like sulfidation),it is the go-to material for piping systems that handle hot exhaust gases and ash in power plants and waste-to-energy facilities.
Hastelloy Pipes
The materials we use include C276 (UNS N10276), C22 (UNS N06022), B3 (UNS N10675), G30 (UNS N06985), Hastelloy X (UNS N06002) and others.
Inconel Pipes
We primarily use Inconel 600, Inconel 601, Inconel 625 and Inconel 718 to manufacture high-quality certified steel pipes for you.
Monel Pipes
Monel 400 is suitable for marine, chemical, aerospace and other industries due to its corrosion resistance, high strength and excellent high-temp performance.
Incoloy Pipes
Incoloy 800, Incoloy 800H, Incoloy 800HT and Incoloy 825 are also key materials for manufacturing pipelines. We have over a decade of experience.
Nickel Pipes
Nickel alloys 200/201 offer corrosion resistance, excellent high-temperature performance and stable behavior.
Super Duplex Pipes
Both 253MA and 2507 can be used for pipelines and equipment in corrosive environments.However,253MA is suitable for high-temperature operations.
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Should you have any questions regarding stainless steel pipes & tubings, including manufacturing processes, chemical composition or other unfamiliar matters, our staff will be happy to assist you.