ASTM A240 UNS S32750 Super Duplex Steel Plates

Super Duplex S32750 Characteristic

Super Duplex Alloy UNS S32750 (F53 / 1.4410 / Alloy 32750 / Alloy 2507) is the most common super duplex grade in the market. It has very good resistance to localized corrosion and stress corrosion cracking in combination with high mechanical strength. 2507 Stainless Steel is composed of 25% Chrome and 7% nickel which causes the alloy to have an even higher corrosion resistance and longer life span. Along with it being corrosion resistant, UNS S32750 has a high resistance of cracking and pitting, and the yield and tensile strength make it comparable to nickel alloys.

Alloy 32750 is a super duplex stainless steel supplied in the solution annealed condition. As a super duplex stainless steel, it combines the desirable aspects of both austenitic and ferritic grades. The higher chromium, molybdenum and nitrogen contents result in a Pitting Resistance Equivalent number (PREN) of >41, providing pitting and crevice corrosion resistance superior to austenitic and duplex stainless steels in almost all corrosive media, and a Critical Pitting Temperature exceeding 50°C. Supplied in the annealed condition, it achieves yield strengths of 80ksi (550Mpa), greater than most austenitic and duplex stainless steel grades. It cannot be hardened by heat treatment but can be strengthened by cold working. It also exhibits a low coefficient of thermal expansion and higher heat conductivity than austenitic steels and is suitable for working temperatures up to 300°C. Alloy 32750 is listed in NACE MR 0175 for sour service and having gained ASME Approval for Pressure Vessel applications it can be used in a wide variety of applications.

ASTM A240 UNS S32750 Super Duplex Stainless Steel Plates

One of the key benefits of Super Duplex S32750 plate is its high yield strength. The plate can handle significant loads and forces without bending or staying bent. This high strength comes from the steel’s duplex structure, which has a mix of different grain types. Fighting corrosion, Super Duplex S32750 works even better than 300 series stainless steels. It holds up very well against localized corrosion in places with chlorides and other harmful substances. This makes it great for uses with saltwater, chemicals, and other difficult conditions. The chromium, molybdenum, and nitrogen make it able to re-passivate.

ASTM A240 UNS S32750 Plate is applied in high tension and high corrosion environments. It can stand high wear and tear more than other types of steels. SA 240 UNS S32750 Plate is used in applications such as automobile and construction industries to provide minimal size and weight at the same time with high tensile strength. Duplex UNS S32750 Coil has very low corrosion ratios under very high corrosive conditions. Especially under chloride ion rich environments and other acidic environments, ASTM A240 UNS S32750 Plate can perform better than other types of steels.

Super Duplex Steel S32750 / 2507 Sheet has good mechanical and structural properties. At JN Alloy, Super Duplex 2507 Sheet is one of our highest-selling products. The reason behind its increasing demand is it is highly durable, easy to install and maintain over a period of time, is highly corrosion resistant grade, possesses high mechanical strength, and is available in different shapes and sizes. A customization option is also available here, and customers can order these plates as per their specifications.

UNS S32750 Super Duplex Plate Specification

ASTM A240 UNS S32750 Plate Specification	ASTM A240 / ASME SA240 / NACE MR-0175
Tolerances of width and thickness of ASTM A240 UNS S32750 Plate	· EN 10258 (formerly DIN 59381) · EN 10151 ASTM A240 UNS S32750 strips for springs · EN 10088 UNS S32750 Super Duplex strip (general)
Standard ASTM A240 UNS S32750 Plate sizes in stock	1000 x 2000 mm, 1220 x 2440 mm, 1500 x 3000 mm, 2000 x 2000 mm, 2000 x 4000 mm · Cold rolled ASTM A240 UNS S32750 Plate 0.5-6.4 mm · Hot rolled ASTM A240 UNS S32750 Plate 3.0–10.0 mm
Super Duplex SA 240 UNS S32750 Plate & Sheet Thickness	0.1 to 100 mm Thk
Width	10-2500mm
ASTM A240 gr S32750 Plate & Sheet Length	2m, 2.44m, 3m, or as required
ASTM A240 UNS S32750 Plate Finish	2B, 2D, BA NO(8), Cold rolled sheet (CR), Hot rolled plate (HR), SATIN (Met with Plastic Coated), No.1 finish hot rolled ASTM A240 UNS S32750 Plate, 1D, 2B, No.4, BA, 8K, satin, hairline, brush, mirror etc.
Duplex ASTM A240 S32750 Plate & Sheet Hardness	Soft, Hard, Half Hard, Quarter Hard, Spring Hard
Stock available in form of	ASTM A240 UNS S32750 Plate, Sheet, Coils, Foils, Strip, Flats, Clad Plate, Plain Sheet, Rolling Sheet, Rolling Plate, Flat Shim, Flat Sheet, Shim Sheet, Rolls, Blank (Circle), sheared, annealed, soft annealed, descaled, tread plate, Checker Plate
Plasma profiles	As per client's specification
Value added services for ASTM A240 UNS S32750 Plate	· Cut-to-length · Laser cutting · Slitting · Polishing · Blanking · Waterjet cutting · Plasma cutting · Edge preparation · Welding · Sawing and shearing · Bending and mechanical processing
Standards and approvals for ASTM A240 UNS S32750 Plate	· EN ISO 18286 · EN 10051 · EN 10088-1 · ISO 15510 · EN ISO 9445 · ASTM A 480 · ASTM A 959 · ASME IID

Applications of Super Duplex Steel UNS S32750 Plates

Super duplex steel UNS S32750, also known as SAF 2507, is a highly alloyed stainless steel with properties that make it suitable for a wide range of applications, particularly in industries where corrosion resistance and strength are paramount. Here are some common applications of super duplex steel UNS S32750 plates:

Oil and Gas Industry: Super duplex steel S32750 Plates is widely used in the oil and gas industry for various applications such as offshore platforms, subsea pipelines, and equipment for oil and gas extraction, refining, and transportation. Its high strength, corrosion resistance, and resistance to chloride stress corrosion cracking make it ideal for harsh environments encountered in these industries.

Chemical Processing: Super duplex steel S32750 plates find extensive use in chemical processing industries where resistance to corrosive environments, such as acids, alkalis, and chlorides, is essential. They are used in equipment such as reactors, heat exchangers, and storage tanks.

Marine Applications: Super duplex steel S32750 Plates is utilized in marine applications where corrosion resistance is crucial, such as in the construction of ship hulls, propeller shafts, and offshore structures. Its resistance to pitting and crevice corrosion in seawater makes it highly suitable for these applications.

Power Generation: In power generation facilities, particularly in environments where there is exposure to high temperatures, pressure, and corrosive elements, super duplex steel plates are used in components like steam turbines, heat exchangers, and boilers.

Renewable Energy: With the growing focus on renewable energy sources like wind and tidal energy, super duplex steel S32750 Plates is used in the construction of components such as wind turbine towers, tidal turbine components, and wave energy devices due to its high strength and corrosion resistance in marine environments.

Construction: In construction applications where corrosion resistance and structural integrity are critical, super duplex steel S32750 Plates are used in infrastructure projects like bridges, tunnels, and buildings, especially in environments exposed to marine or industrial atmospheres.