What are UNS S32750 Super Duplex Pipes?

UNS S32750 Super Duplex Pipes are high-performance stainless steel pipes made from Super Duplex 2507 alloy which contains approximately 25% chromium, 7% nickel, 4% molybdenum and nitrogen. These pipes are very resistant to pitting, crevice corrosion, chloride stress corrosion cracking and erosion in an aggressive environment. ASTM A790 UNS S32750 Super Duplex Pipes are used in offshore oil and gas, desalination plants, chemical processing, marine applications and heat exchanger systems where high strength and corrosion resistance is needed.

UNS S32750 Super Duplex Pipes Supplier

We are reliable manufacturers, suppliers and exporters of UNS S32750 Super Duplex Pipes for those tough environments and applications where typical stainless steel grades cannot achieve. Our product includes ASTM A790 UNS S32750 Super Duplex Pipes, Super duplex 2507 pipes, alloy 2507 seamless pipes, alloy 2507 welded pipes, Alloy 2507 heat exchanger tubes, alloy 2507 capillary tubes and custom pipes to international specifications.

Globally known as UNS S32750 / DIN 1.4410, SAF 2507 piping and Werkstoff 1.4410 pipes, super duplex stainless steel has superior corrosion resistance and good mechanical strength. This super duplex steel is widely used in the marine, desalination, offshore platforms and chemical industries due to their effectiveness in the salty or chlorine-rich environment. 

As an expert UNS S32750 pipe manufacturer, we offer pipes in different dimensions, schedule, and end finish according to customers’ needs worldwide.

What is ASTM A790 UNS S32750 Super Duplex Pipe?

ASTM A790 UNS S32750 Super Duplex Pipes seamless/welded austenitic ferritic stainless steel pipes for services with high corrosive environments. Duplex Structure contains about 50% ferrite and 50% austenite with much higher yield strength compared to conventional grades of austenitic steels (e.g. Grade 304, grade 316) with significant improvements in tensile strengths.

The material is commonly referred to as:

• UNS S32750 Pipes
• Super Duplex 2507 Pipes
• Alloy 2507 Seamless Pipes
• SAF 2507 Piping
• Werkstoff 1.4410 Pipes
• DIN 1.4410 Pipes
• Super Duplex Stainless Steel S32750 Pipe

The Super Duplex material which is alloy has more chromium, more molybdenum as well as nitrogen content that result in more extensive erosion resistance along with long durability as compared to other austenitic steel in most intense service conditions.

Key Benefits of UNS S32750 Super Duplex Pipes

• Superior Corrosion Resistance: Excellent resistance to pitting, crevice and chloride attack due to their high chromium and molybdenum levels.
• High Mechanical Strength: Nearly twice the yield strength of regular austenitic steels provides the designer the option to reduce wall thickness and weight.
• Excellent Stress Corrosion Cracking Resistance: High resistance to chloride stress corrosion cracking due to the duplex structure.
• Long Service Life: It resists the corrosion of marine environments and off-shore conditions for many years.
• Cost-Effective Performance: Even though the cost of material is high; its maintenance requirement would be less compared to other materials, so the lifecycle cost would be low. 
• NACE Compliance: Our NACE MR0175 2507 Super Duplex pipes are appropriate to our environment & oilfield service and would resist sulfide stress cracking.

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