2507 Stainless Steel Sheets and Plates Supplier
- Thickness: 0.2mm – 200mm
- Width: 300mm – 2000mm, the narrowed products pls check in strip products
- Length: 500mm-12000mm
- Finish: 2B, 2D, Black, NO.1, Anneal pickling
- MOQ: 2MT
Product Description
Duplex Stainless Steel (DSS) describes approximately 50% of ferrite and austenite and Steels also contain alloying elements such as Mo, Cu, Nb, Ti, and N. Content, the Cr content is 18% to 28 percent, and the Ni content is 3% to 10%. Some Contain less than 30 percent of stainless steel. In the case of diminished C content, the DSS may have improved weldability and corrosion resistance. Carbon has a strong affinity with chromium, which can form chromium carbides, reducing the amount of available chromium to form the protective chromium oxide layer on the surface of the steel. This can lead to localized corrosion and decreased corrosion resistance. Therefore, reducing the C content can increase the availability of chromium for forming the protective oxide layer, resulting in improved corrosion resistance.
This type of steel unites the characteristics of ferritic and austenitic stainless steel. In comparison with ferrite, it has higher plasticity and toughness, no brittleness at room temperature to intergranular corrosion and welding functionality, and at the same time retains iron. The 475 brittleness and high thermal conductivity of the stainless steel make it superplastic. Compared with austenitic stainless steels, they have high durability and resistance to chloride stress corrosion resistance and intergranular corrosion. Duplex stainless steel has corrosion resistance and is also nickel-saving stainless steel.
Classification of Duplex Stainless Steel Sheets
Duplex stainless steels are classified according to their chemical composition and can be classified into four types: Cr18 kind, Cr23 (excluding Mo) kind, Cr22 type, and Cr25 type. For the Cr25 kind of duplex stainless steel, it can be divided into form and super duplex stainless steel. Among these, the Cr22 kind and Cr25 types are utilized. The specific grades are 3RE60 (Cr18 type ), SAF2304 (Cr23 type), SAF2507 (Cr22 type ), and SAF2507 (Cr25 type).
- Cr18 Duplex Stainless Steel: Its chemical composition contains 18% chromium and about 5% to 8% nickel, as well as small amounts of molybdenum and nitrogen. This type of stainless steel has high strength, excellent corrosion resistance, and good welding properties, and is widely used in chemical, marine, shipbuilding, and other fields.
- Cr22 Duplex Stainless Steel: Its chemical composition contains 22% chromium and about 6% to 8% nickel, as well as small amounts of molybdenum and nitrogen, and other elements. This type of stainless steel has higher strength and better corrosion resistance and is suitable for applications requiring higher strength and more severe corrosive environments, such as petroleum, chemical, marine, etc.
- Cr25 Duplex Stainless Steel: It’s chemical composition contains 25% chromium and about 7% to 9% nickel, as well as small amounts of elements such as molybdenum and nitrogen. This type of stainless steel has higher strength and better corrosion resistance and is divided into two types: duplex and super duplex. Super duplex stainless steel has outstanding strength and corrosion resistance and is suitable for marine engineering, the chemical industry, shipbuilding, and other fields.
- Cr23 Duplex Stainless Steel: This type of stainless steel does not contain molybdenum, but contains 23% chromium and 3% to 5% nickel, as well as a small amount of nitrogen and copper, and other elements. It has better corrosion resistance and higher strength and is suitable for use in acidic environments and some special working conditions.
Product Range
-2507 Cold Rolled Stainless Steel Sheet and Plate, Cold rolled 2507 sheet, Cold rolled 2507 Plate
- Thickness: 0.2mm – 3.0mm
- Width: 300mm – 2000mm, the narrowed products pls check in strip products
- Length: 1000mm-6000mm
- Finish: 2B, 2D
-2507 Hot Rolled Stainless Steel Sheet and Plate, Hot Rolled 2507 Sheet, Hot Rolled 2507 Plate,2507 PMP, 2507 CMP
- Thickness: 1.2mm – 200mm
- Width: 300mm – 3200mm
- Length: 500mm – 12000mm
- Finish: Black, NO.1, Anneal pickling
Specification of 2507 Stainless Steel Sheets
Ingredients of 2507 Stainless Steel
| 2507 | C% | Si% | Mn% | P% | S% | Ni% | Cr% | Mo% | N |
| ASTM | ≤ 0.03 | ≤ 0.8 | ≤ 1.2 | ≤ 0.035 | ≤ 0.02 | 6.0-8.0 | 24.0-26.0 | 3.0-5.0 | 0.24-0.32 |
| EN | ≤ 0.03 | ≤ 1.00 | ≤ 2.00 | ≤ 0.035 | ≤ 0.015 | 6.0-8.0 | 24.0-26.0 | 3.0-5.0 | 0.20-0.30 |
| JIS | ≤ 0.03 | ≤ 1.00 | ≤ 1.2 | ≤ 0.035 | ≤ 0.02 | 6.0-8.0 | 11.5-14.5 | 3.0-5.0 | 0.24-0.32 |
| GB | ≤ 0.03 | ≤ 0.08 | ≤ 1.2 | ≤ 0.035 | ≤ 0.02 | 6.0-8.0 | 24.0-26.0 | 3.0-5.0 | 0.20-0.32 |
2507 Mechanical Properties in Different Standards
2507 | Y.S./Mpa ≥ | T.S./Mpa ≥ | E.L./% ≥ | HB ≤ | HRB ≤ | HBW ≤ | HV ≤ |
ASTM | 550 | 795 | 15 | 310 | 32 | 310 | 320 |
JIS | 550 | 800 | 15 | 290 | 32 | 310 | 320 |
GB | 550 | 800 | 15 | 290 | 32 | 310 | 320 |
Production Process of 2507 Stainless Steel Sheets
Billet Furnace Heating
Put the raw steel billet into the heating furnace for heating, and the billet is heated to a suitable temperature for the subsequent rolling process.
Rolling Process
The heated billets are fed into a rolling mill for rolling process. In the rolling mill, the billets are rolled several times to make them into plates of suitable thickness.
Pickling Treatment
In order to remove the surface oxidation and dirt on the billet surface left by the rolling process, pickling treatment is required for the plate. The pickling solution is generally a mixture of hydrochloric acid and sulfuric acid.
Finishing
In order to make the surface of the plate smooth, the plate needs to be finished. The surface treatment is usually done by mechanical polishing or chemical brightening treatment.
Cold Rolling
In order to achieve higher flatness and finer thickness, cold rolling of the sheet is required. The cold rolling process is generally carried out on a special cold rolling mill to achieve the appropriate thickness of the sheet.
Rolling Annealing
In order to improve the mechanical properties and corrosion resistance of the plate, the plate needs to be rolled and annealed. Rolling annealing is generally carried out in a hydrogen atmosphere at a controlled temperature of about 1000°C for a few hours to several dozen hours.
Features of 2507 Stainless Steel Sheets
Duplex stainless steel has the qualities of austenitic stainless steel and stainless steel since it has a ferritic structure, as well as they, are essentially exactly the same. The yield strength can attain 400Mpa 550MPa, which can be that of austenitic stainless steel. In comparison with ferritic stainless steel, duplex stainless steel has high toughness transition temperature and resistance to intergranular corrosion and reliability. At precisely the exact same time, it keeps some features of ferritic stainless steel, for example, 475 brittleness and warmth.
2507 stainless steel sheet has excellent corrosion resistance and can be used for a long time in various harsh environments, such as seawater, acidic, alkaline and chloride environments.
2507 stainless steel sheet has the characteristics of high strength and high plasticity, its tensile strength can reach more than 800MPa, and also has good impact toughness.
2507 stainless steel sheet has good welding performance and can be processed by conventional welding methods, such as TIG welding, MIG welding, etc.
2507 stainless steel plate has good processing performance and can be processed by conventional processing methods, such as cutting, drilling, milling, etc.
2507 stainless steel sheet still has good performance in high temperature environment and can be used in high temperature environment around 600℃.
Application of 2507 Stainless Steel Sheets
The combination of high strength, corrosion resistance, low coefficient of thermal expansion and superplasticity makes DSS a highly desirable material for a wide range of applications in the oil and gas, chemical processing and offshore industries.
Chemical Industry
2507 stainless steel sheet has excellent corrosion resistance in strongly corrosive media such as sulfuric acid, chlorides, sulfides, etc. The duplex structure makes it hard and strong enough to resist the impact and abrasion of fluids. The yield strength of 2507 stainless steel sheets is up to 550MPa or more, and the tensile strength is up to 800MPa or more, so it has good strength and rigidity and is suitable for working in high-temperature and high-pressure environments. 2507 stainless steel sheet has good high-temperature resistance and can be used in high-temperature environments for a long time, not easy to deform and fail. As a result, 2507 stainless steel plate in the chemical industry is widely used in fertilizer, petroleum, natural gas, seawater desalination, and other fields, such as fertilizer units, petrochemical equipment, seawater desalination equipment, etc.
Marine Industry
2507 stainless steel sheet is widely used in the marine industry because of its excellent corrosion resistance and resistance to corrosion in marine environments, its ability to withstand extreme marine environments and high chloride ion content in seawater, and its ability to be used in seawater for long periods of time without losing its corrosion resistance. Specific applications include the construction of offshore platforms, marine development, ship, and marine facilities manufacturing, etc. For example, 2507 stainless steel plate can be used for structural support on marine platforms, submarine pipelines, marine oil and gas development equipment, marine machinery manufacturing, etc. In shipbuilding, 2507 stainless steel plates can be used for hull structures, ship pipelines, propellers, etc. In addition, 2507 stainless steel plate is also widely used in the chemical industry in the marine environment, such as storage tanks for corrosive media used in marine oil extraction and chemical processing, desalination equipment, etc.
Petroleum Industry
2507 stainless steel sheet is widely used in the petroleum industry and is widely used in oil and gas extraction and processing due to its high corrosion resistance and stress corrosion resistance. In oil well casing and oil and gas pipelines, 2507 stainless steel sheet is widely used in oil well drill pipes, casing, oil pipelines, etc. As the oil well environment is characterized by high temperature, high pressure and high corrosion, the use of 2507 stainless steel sheet can effectively prevent corrosion and cracking of steel pipes, thus extending their service life. In petroleum processing, 2507 stainless steel plate can be used to manufacture chemical equipment, such as petroleum refining devices, petrochemical storage tanks, deep cooling equipment, etc. It can also be used in the treatment and storage of petroleum processing wastewater. In addition, in the field of oil detection, 2507 stainless steel plate is also used to manufacture various detection equipment and tools, such as detectors, sensors, etc.
Pharmaceutical Industry
2507 stainless steel sheet is also widely used in the pharmaceutical industry. Due to the special nature of pharmaceuticals, pharmaceutical equipment needs to have a high degree of corrosion resistance, cleanliness and high temperature resistance, and 2507 stainless steel plate is just right to meet these needs. In the pharmaceutical equipment, 2507 stainless steel plate is mainly used in the manufacture of reactors, filters, stirrers, conveying pipelines, sterilization equipment, etc.. These equipment need to have high corrosion resistance and high temperature resistance, and also need to maintain cleanliness to ensure the quality and safety of drugs. The high strength and stress corrosion resistance of 2507 stainless steel sheet also make it an ideal material for pharmaceutical equipment. In the pharmaceutical industry, some special pharmaceutical processes require the use of high pressure, high temperature and other conditions, and 2507 stainless steel sheet can withstand these extreme conditions well and maintain a long service life. In addition, 2507 stainless steel sheet can also be used to manufacture pharmaceutical packaging containers, pharmaceutical storage tanks, etc.. These containers need to have good corrosion resistance and sealing performance to ensure the quality and safety of drugs.
Food Processing Industry
2507 stainless steel sheet is widely used in the food processing industry due to its excellent corrosion resistance and high temperature resistance, as well as its lack of contamination to food. First of all, 2507 stainless steel sheet is widely used in the manufacture of food processing equipment, such as food tanks, food conveyor belts, food mixers, heaters and coolers. These equipment need to withstand the harsh environment of acid and alkali corrosion, high temperature and pressure and repeated cleaning and disinfection of various food products, and 2507 stainless steel plate is one of the ideal materials to meet these requirements. Secondly, 2507 stainless steel plate is also widely used in the manufacture of tableware, kitchenware and baking ovens and other products. These products need to have good corrosion resistance and high temperature resistance, but also to meet the food hygiene standards, so 2507 stainless steel plate is one of the ideal materials for these products. In addition, 2507 stainless steel plate is also used in the manufacture of building materials such as walls, roofs and floors of food processing plants, which also need to have good corrosion resistance and high temperature resistance to ensure the hygiene of the food processing plant and the safety of the production environment.
FAQ
Compared to other stainless steel materials, 2507 stainless steel sheet is more difficult to process. This is due to its high strength and hardness, as well as its high ductility and toughness. Therefore, cutting, drilling, stamping, welding and other processing processes require the use of higher-level tools and equipment, and require more careful and delicate operating skills. In addition, adequate lubrication and cooling are required during processing to avoid problems such as overheating and deformation.
2507 stainless steel plate can be treated by a variety of surface treatment methods to meet different needs, common surface treatment methods include
Sandblasting: Through high-speed injection of abrasive to make the surface form a certain roughness, thus increasing the surface adhesion and aesthetics.
Polishing: Through mechanical grinding and polishing treatment, the surface becomes smooth and shiny, suitable for high-grade products and occasions requiring a high degree of cleanliness.
Mirror: Similar to polishing but more detailed, with a high surface finish, used in demanding applications.
Passivation: Forms a dense oxide film on the surface of stainless steel to improve corrosion resistance.
Spraying: By spraying paint or powder on the surface, it can achieve the effect of anti-corrosion, anti-oxidation and decoration.
Spraying: Forming an ultra-thin nano-ceramic coating on the surface of stainless steel to enhance wear resistance, corrosion resistance, high temperature resistance, etc.
The service life of 2507 stainless steel sheet depends on many factors, such as the environment of use, conditions of use and maintenance. Generally speaking, 2507 stainless steel sheet has a relatively long service life, which can reach decades or even longer. Under the right use environment, it can provide excellent corrosion and wear resistance, reduce the frequency of maintenance and replacement, and save costs. However, the service life of 2507 stainless steel sheet may be shortened under certain extreme use environments, such as high temperature, high pressure, and strong acid. Therefore, when selecting 2507 stainless steel sheet, it is necessary to fully consider the conditions of use and environment and select the appropriate material to ensure its long-term service life.
Here are some ways to protect 2507 stainless steel plates:
- Cleaning: frequent cleaning of the stainless steel sheet surface can prevent the accumulation of dirt and corrosion. It is recommended to use mild detergent and soft cloth for cleaning.
- Avoid Physical Damage: When handling and using stainless steel sheets, avoid scratches, abrasions and impacts that can damage the surface.
- Prevent Chemical Contamination: Do not expose 2507 stainless steel sheet to chemicals such as chlorides, salts and strong acids to avoid corrosion. If contact with these substances is unavoidable, please rinse with water immediately and dry in time.
- Surface Treatment: The use of suitable surface treatment techniques such as electroplating, anodizing, galvanizing, etc. can increase the corrosion resistance and service life of 2507 stainless steel sheet.
- Choose the Right Environment: When using 2507 stainless steel plate, you should choose the right environment and application scenario, and try to avoid high temperature, humidity, acid and alkali conditions to prolong the service life of stainless steel plate.
- In conclusion, proper use and maintenance methods can significantly extend the service life of 2507 stainless steel sheet, reduce maintenance costs, and ensure its excellent performance and appearance.
2205 stainless steel and 2507 stainless steel are both duplex stainless steels with high strength, high corrosion resistance and good toughness. Their main differences are in chemical composition and properties.
- Chemical Composition: 2205 stainless steel has 22% chromium and 5% nickel, while 2507 stainless steel has 25% chromium and 7% nickel, and also contains molybdenum, copper and nitrogen.
- Performance: 2507 stainless steel has higher corrosion resistance, stress corrosion resistance, wear resistance and toughness than 2205 stainless steel, and is also more suitable for use in high temperature, high pressure and strong corrosive environments.
Overall, 2507 stainless steel offers higher performance and a wider range of applications than 2205 stainless steel, but is also correspondingly more expensive. The choice of material depends on the specific environment and needs.
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