HomeProducts & servicesUNS S32760 Seamless Super Duplex Steel Pipe

UNS S32760 Seamless Super Duplex Steel Pipe

UNS S32760 Seamless Super Duplex Steel Pipe , UNS S32760 is a high-performance super duplex stainless steel highly regarded for its exceptional strength and outstanding corrosion resistance, particularly in aggressive, chloride-containing environments. Seamless pipes made from this material are engineered for critical applications where reliability and longevity are paramount.
UNS S32760's primary advantage is its excellent resistance to various forms of corrosion.
• Pitting and Crevice Corrosion: This grade boasts a high Pitting Resistance Equivalent Number (PREN), calculated as PREN = %Cr + 3.3(%Mo + 0.5%W) + 16%N. With a PREN value typically exceeding 41, it offers outstanding resistance to localized corrosion in seawater and other chloride-rich media.
• Stress Corrosion Cracking (SCC): The duplex structure provides excellent resistance to chloride-induced SCC, a common vulnerability for standard austenitic stainless steels.
• Sour Service: It is resistant to sulfide stress cracking in sour gas environments, making it suitable for oil and gas applications.

① STANDARD: ASTM A789/ ASTM A790/ ASTM A928/ ...

② OD RANGE : 6-720 MM

③ THICKNESS RANGE: 1-65 MM

UNS S32760 1.4501 X2CrNiMoCuWN 25-7-4 SAF32760 25Cr Chemical Composition

Grade

C

Mn

P

S

Si

Ni

Cr

Mo

N

Cu

Others

S32760

≤0.05

≤1.00

≤0.030

≤0.01

≤1.00

6.00-8.00

24.00-26.00

3.00-4.00

0.20-0.30

0.50-1.00

W 0.50-1.00

NOTE:  PREN:Cr+3.3*(Mo+0.5*W)+16*N≥41

UNS S32760 1.4501 X2CrNiMoCuWN 25-7-4 SAF32760 25Cr Mechanical Properties

Grade

Tensile Strength ksi(MPa)

Yield Strength ksi (MPa)

Elongation (%)

Hardness HBW

Hardness HRC

S32760

≥109(750)

≥80(550)

≥25

≤310

≤32


UNS S32760 1.4501 X2CrNiMoCuWN 25-7-4 SAF32760 25Cr Applications

  • UNS S32760, also known as Super Duplex Stainless Steel 2507, is a remarkable alloy with a microstructure of 50% austenite and 50% ferrite. Let’s explore its applications in various industries:
    1. Oil & Gas Industry:
      • Super Duplex Stainless Steel S32760 is widely used in this sector.
      • It finds applications in components such as pumps, valves, chokes, Xmas trees, pipework, flanges, bolting, connectors, and manifolds.
      • Its outstanding corrosion resistance ensures reliability in harsh oil and gas production environments.
    2. Chemical Processing Equipment:
      • In chemical plants, this alloy is employed for reactors, heat exchangers, and other critical equipment.
      • Its resistance to aggressive chemical environments makes it valuable in handling corrosive substances.
    3. Marine Engineering:
      • Super Duplex S32760 is suitable for marine fixtures, pump and mixer shafts, and other components.
      • Its ability to withstand saltwater corrosion ensures longevity in marine environments.
    4. Seawater Desalination Plants:
      • The alloy is commonly used in desalination plants due to its high resistance to pitting and crevice corrosion.
      • It ensures efficient operation in these critical facilities.
    5. Heat Exchangers:
      • Heat exchangers benefit from Super Duplex S32760’s excellent weldability and workability.
      • It is a preferred material for efficient heat transfer in various applications.

Remember that Super Duplex Stainless Steel S32760 combines the desirable aspects of both austenitic and ferritic grades, making it a versatile choice across different industries.


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UNS S32760 1.4501 X2CrNiMoCuWN 25-7-4 SAF32760 25Cr Material summary

UNS S32760 Seamless Super Duplex Steel Pipe  is one of the most common super duplex steel grades on the market. UNS S32760 is a duplex steel specially designed for use in corrosive chlorine-containing environments and has increased W and Cu compared to UNS S32750. It has very good resistance to localized corrosion and stress corrosion cracking and has high mechanical strength.

Stainless steel grade S32760 has excellent corrosion resistance to a wide range of areas, especially resistance to pitting and crevice corrosion in seawater and other chloride containing environments, with critical pitting temperature that is more than 50°C (122°F). This material is known to also have high strength and extended lifecycle. It is 10% lighter than grade 316 steel, ideal for sub-zero service, and more cost effective than nickel alloys. Stainless steel grade S32760 can be easily machined and welded.

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① STANDARD: ASTM A789/ ASTM A790/ ASTM A928/ ...

② OD RANGE : 6-720 MM

③ THICKNESS RANGE: 1-65 MM

UNS S31803/1.4462 Seamless Duplex Steel Pipe

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Standards: ASTM A790 / ASME SA790, ASTM A789 / ASME SA789

Seamless S32205 Duplex Steel Tube

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① STANDARD: ASTM A789/ ASTM A790/ ASTM A928/ ...

② OD RANGE : 6-720 MM

③ THICKNESS RANGE: 1-65 MM

UNS S32760 Seamless Super Duplex Steel Tube

UNS S32760 Seamless Super Duplex Steel Tube, UNS S32760 is a high-performance super duplex stainless steel highly regarded for its exceptional strength and outstanding corrosion resistance, particularly in aggressive, chloride-containing environments. Seamless pipes made from this material are engineered for critical applications where reliability and longevity are paramount.
UNS S32760's primary advantage is its excellent resistance to various forms of corrosion.
• Pitting and Crevice Corrosion: This grade boasts a high Pitting Resistance Equivalent Number (PREN), calculated as PREN = %Cr + 3.3(%Mo + 0.5%W) + 16%N. With a PREN value typically exceeding 41, it offers outstanding resistance to localized corrosion in seawater and other chloride-rich media.
• Stress Corrosion Cracking (SCC): The duplex structure provides excellent resistance to chloride-induced SCC, a common vulnerability for standard austenitic stainless steels.
• Sour Service: It is resistant to sulfide stress cracking in sour gas environments, making it suitable for oil and gas applications.

① STANDARD: ASTM A789/ ASTM A790/ ASTM A928/ ...

② OD RANGE : 6-720 MM

③ THICKNESS RANGE: 1-65 MM

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