S32550 Duplex Stainless Steel Plate, also known as 255 Duplex Stainless Steel or S32550 Super Duplex Steel, is a highly sought-after material in the industrial sector. With its exceptional strength and corrosion resistance properties, it has become a popular choice for various applications.
As a leading supplier of S32550 Stainless Steel Plate, we offer top-quality products that meet the highest industry standards. Our team of experts ensures that every plate meets the strict specifications set by ASTM A240 and ASME SA240.
Super Duplex Steel UNS S32550 is a versatile material that finds its application in offshore oil and gas industries, chemical processing plants, and marine environments. Its excellent resistance to pitting, crevice corrosion, and stress corrosion cracking make it ideal for harsh and demanding environments.
Our Super Duplex Steel S32550 is available in different sizes and thicknesses to suit the specific requirements of our customers. We have a wide range of stock available, allowing us to fulfill orders promptly and efficiently. Whether you need a small quantity or bulk order, we can cater to your needs.
With our extensive experience and expertise in the field, we assure you of the highest quality Super Duplex F61 Stainless Steel. Our dedication to providing excellent customer service sets us apart from our competitors. We work closely with our customers to understand their needs and offer tailored solutions.
If you are looking for reliable Super Duplex UNS S32550 Stainless Steel Plate suppliers and exporters, look no further. We assure you of superior quality products, competitive prices, and timely delivery. Contact us today to discuss your requirements and experience our exceptional service.
ASTM A240 UNS S32550 is a sought-after duplex stainless steel plate that seamlessly blends the strengths of austenitic and ferritic stainless steel. This particular type of stainless steel plate contains about 25% chromium, 6% nickel, and 4% molybdenum. As a result, it delivers exceptional strength, outstanding corrosion resistance, and impressive welding performance. What sets the S32550 stainless steel apart from other grades and alloys is its unparalleled ability to withstand challenging environments encountered by industries such as oil, gas, and chemical. This stainless steel is tougher and more resistant to chlorides, pitting, and crevice corrosion compared to other alloys. Moreover, its yield strength surpasses that of alloy 20 by two-fold. It's just the perfect choice for demanding environments that require high-performance material.
- ASTM A240 is a specification that specifically addresses the requirements for chromium and chromium-nickel stainless steel plate, sheet, and strip. This specification is primarily focused on their usage in pressure vessels and general applications. It provides guidelines and standards for the manufacturing, testing, and usage of these materials in various industries.
The main purpose of ASTM A240 is to ensure the quality and performance of stainless steel products used in pressure vessels. It covers different grades of stainless steel, which are categorized based on their chemical composition and mechanical properties. These grades include austenitic, ferritic, and martensitic stainless steels.
Manufacturers and suppliers refer to this specification to determine the suitable stainless steel grade and material requirements for specific pressure vessel applications. The specification highlights the importance of material properties such as strength, corrosion resistance, and weldability. It also outlines the various tests that need to be conducted to verify compliance with the specified requirements.
ASTM A240 serves as a valuable resource for engineers, designers, and manufacturers involved in the design and fabrication of pressure vessels. It ensures that the selected stainless steel materials are capable of withstanding the intended pressure, temperature, and environmental conditions. By adhering to the specifications outlined in ASTM A240, the safety and reliability of pressure vessels can be enhanced, while also promoting consistency and standardization in the industry.
- There is a wide range of products available in S32550, including fittings, flanges, forgings, fasteners, pipes, tubes, plates, sheets, strips, coils, bars, and rods. This material is highly versatile and is suitable for a range of applications in various industries. Whether you need components for marine construction, oil and gas equipment, or chemical processing facilities, S32550 can provide the strength and durability needed to withstand harsh environments. Its corrosion resistance and high temperature resistance make it an ideal choice for use in harsh conditions where other materials may fail. So if you're looking for a reliable and high-performance material for your next project, S32550 is an excellent option to consider.
- There are a variety of grades available when it comes to stainless steel. Some of the most popular grades include 304, 304L, 316, 316L, 316Ti, 316L Mod, 17-4ph, 310, 310S, 317, 317L, 321, 321H, 347, 347H, 904L, 254SMO, 253MA, S32550, S32205, S31803, 2507, S31050, and S30815. Each grade has its own unique properties and is suited for different applications. It's important to carefully consider your needs and choose the appropriate grade for your project. Whether you're looking for high corrosion resistance, increased strength, or something else entirely, there's sure to be a grade that fits your requirements. With so many options available, you're sure to find the right stainless steel for your needs.
UNS S32550 Stainless Steel Plate Specifications
| Specifications | A few commonly used industry standards include ASTM A240 and ASME SA240 for general specifications, ASME SA 182 for forged or rolled alloy and stainless steel pipe flanges, fittings, valves, and parts, ASTM A312 for seamless and welded austenitic stainless steel pipe, ASTM A479 for stainless steel bars and shapes for use in boilers and other pressure vessels, ASME SA 213 for seamless ferritic and austenitic alloy steel boiler, superheater, and heat-exchanger tubes, and ASTM A276 for stainless steel bars and shapes. It is important to adhere to industry standards to ensure quality and consistency in the products and processes used. |
| Thickness | 0.3mm-100mm |
| Width | 1000mm, 1219mm, 1500mm, or as requested |
| Length | 2000mm, 2440mm, 3000mm, 5800mm, 6000mm, etc |
| Surface | We offer various surface finishes for our stainless steel products, including BA, 2B, 2D, NO.1, NO.4, NO.8, 8K, mirror, checkered, sandblast, brush, embossed, hairline, etching, and more. These finishes are designed to meet different requirements and preferences of our customers. You can choose the one that suits your needs and gives your products the perfect look and feel. Whether you need a shiny and reflective surface or a textured and patterned one, we have a solution for you. Our aim is to provide you with the best quality and finish possible, and we are always striving to improve and innovate our processes and techniques. |
| MOQ |
No Minimum Order Quantity |
| Service |
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Chemical Composition of UNS S32550
| UNS | Grade | C | Mn | P | S | Si | Cr | Ni | Mo | N | Cu |
| S32550 | 255 | 0.04 | 1.5 | 0.04 | 0.03 | 1 | 24 -27 | 4.5-6.5 | 2.9-3.9 | 0.1-0.25 | 1.5-2.5 |
Mechanical Properties of UNS S32550
| Grade | Tensile Strength, min | Yield Strength, min | Elongation in 2 in. or 50 mm, min, % | Hardness | Cold Bend°D | |||
| KSI | MPa | KSI | MPa | Brinell | Rockwell B | |||
| 255(S32550) | 110 | 760 | 80 | 550 | 15 | 302 | 32 | not required |
S32550 Duplex Stainless Steel Plate Sheet Corrosion Resistance
- Pitting resistance: The main difference between UNS S32550 super duplex steel and duplex stainless steel is that super duplex has higher molybdenum and chromium content, which makes the material have stronger corrosion resistance. The composition of duplex stainless steel is 22% chromium, while the composition of super duplex stainless steel is 25% chromium. By increasing the chromium content, the resistance to pitting corrosion is also improved.
- Acid corrosion: As a 25% Cr alloy, the S32550 duplex stainless steel plate also contains 2% copper for excellent corrosion resistance in a variety of corrosive chemicals including sulfuric, nitric, and phosphoric acids. Super Duplex Steel UNS S32550 has better acid resistance than most other alloys.
- Chloride corrosion resistance: 255 duplex stainless steel also has excellent resistance to pitting and crevice corrosion in seawater and other chloride-rich environments, making it an excellent material for use in marine environments. The critical pitting temperature of F255 exceeds 50°C.
Alloy 255 Super Duplex Steel Plate High Strength
S32550 stainless steel plate has a minimum tensile strength of 725 MPa and a minimum yield strength of 550 MPa, 255 has excellent ductility and impact strength at ambient and sub-zero temperatures. Due to the increased tensile strength and yield strength of the material, it is possible to reduce the section size, reduce the weight and reduce the cost. Super duplex has the advantage of being low cost compared to similar ferritic and austenitic grades, and in many cases purchasing it in smaller gauges is a welcome choice.
255 Duplex Stainless Steel and S32760
Super duplex plate 1.4507 is a very special super duplex grade, this grade is similar to the 1.4410 and 1.4501 super duplex grades. This means that 255 duplex stainless steel is similar in composition to the more widely used super duplex grade UNS S32760. UNS S32550 has slightly higher chromium and copper content, lower nickel content, and no intentionally added tungsten, similar to UNS S32760 PREN 40 requirements.
ASTM A240 UNS S32550 Super Duplex Steel Plate Sizes
- Thickness: The thickness of the steel varies from 0.3mm to 100mm.
- Width: steel width from 1000mm to 3000mm.
- Length: The length of steel can reach 12000mm.
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