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 MM③ THICKNESS RANGE: 1-65 MM
|
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
|
Grade |
Tensile Strength ksi(MPa) |
Yield Strength ksi (MPa) |
Elongation (%) |
Hardness HBW |
Hardness HRC |
|
S32760 |
≥109(750) |
≥80(550) |
≥25 |
≤310 |
≤32 |
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:
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.
UNS S32760 Seamless Super Duplex Steel Tube 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.
UNS S32304 Seamless Duplex Steel Pipe，UNS S32304 also called Duplex 2304 or 1.4362 is a lean duplex stainless steel with a balanced austenite + ferrite microstructure. It provides higher strength than 304/316 austenitic stainless steels while maintaining good resistance to general corrosion, pitting, and stress corrosion cracking—at a more cost-effective alloying content.As a seamless pipe, it delivers excellent uniformity, pressure resistance, and mechanical integrity.Standards: ASTM A789 / ASTM A790, ASME SA789 / SA790, EN 10216-5Manufacturing Process: Seamless (hot finished / cold drawn)Size Range: ½” to 24” OD (custom sizes on request)Schedules: SCH 10 – SCH XXS
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 MM③ THICKNESS RANGE: 1-65 MM
UNS S33207 Seamless Hyper Duplex Steel Tube designed for exceptional strength, corrosion resistance, and toughness, especially in highly aggressive environments. As a seamless pipe, it offers superior structural integrity and uniform properties across the cross-section.Manufacturing Process: Seamless (hot finished / cold drawn)Standards: ASTM A789 / ASME SA789, NORSOK MDS, ISO, EN equivalentsSize Range: ½” to 10” OD (or custom sizes on request)
UNS S31803 seamless duplex steel pipe, also known as Duplex 2205, is a high-strength, corrosion-resistant pipe with a dual-phase microstructure of austenitic and ferritic stainless steel. It offers excellent resistance to stress corrosion cracking, pitting, and crevice corrosion, particularly in chloride-rich environments like seawater. Standards: ASTM A790 / ASME SA790, ASTM A789 / ASME SA789
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