ASTM A815 S32750 Stainless Steel Fittings 1-1/2'' Equal Tee Super Duplex Steel B16.9
Super Duplex 2507 Characteristic
Duplex stainless steels are extremely corrosion resistant, work hardenable alloys. Their microstructures consist of a mixture of austenite and ferrite phases. As a result, duplex stainless steels display properties characteristic of both austenitic and ferritic stainless steels. This combination of properties can mean some compromise when compared with pure austenitic and pure ferritic grades. Duplex stainless steels are in most cases, tougher than ferritic stainless steels. Strengths of duplex stainless steels can in some cases be double that for austenitic stainless steels. Whilst duplex stainless steels are considered resistant to stress corrosion cracking, they are not as resistant to this form of attack as ferritic stainless steels. However, the corrosion resistance of the least resistant duplex stainless steels is greater than that for the most commonly used grades of stainless steels, i.e. 304 and 316. Duplex steels are also magnetic, a property that can be used to easily differentiate them from common austenitic grades of stainless.
Influence of elements on steel properties
1.The addition of molybdenum increases the pipe’s strength and resistance to pitting and crevice corrosion.
2. while nickel enhances the pipe’s ductility and toughness. The high levels of chromium provide excellent resistance to oxidizing agents and corrosion caused by chlorides, making super duplex 2507 pipes an attractive option for use in saltwater and acidic environments.
Advantages
1.2507 have a pipe exceptional strength. These pipes are designed to withstand high levels of pressure and stress, making them ideal for use in offshore drilling and chemical processing applications.
2. 2507 pipes have a high level of resistance to fatigue, making them suitable for use in applications that require repetitive cycling or high levels of stress.
3. It has a outstanding resistance to corrosion. The high levels of chromium, molybdenum, and nickel give these pipes excellent resistance to both general and localized corrosion, including pitting and crevice corrosion. This makes super duplex 2507 pipes an ideal choice for use in harsh and corrosive environments that can quickly deteriorate standard pipes.
4. It has a highly versatile and can be easily customized to meet specific application needs. They are available in a wide range of sizes, grades, and thicknesses, which can be configured according to the needs of a particular project.
Usage
1.heat exchangers.
2.oil and gas industry equipment
3.offshore platforms.
4.chemical process industries,vessels,and piping.
5. Mechanial and structural components,high strength,corrosion-resistant parts.
Chemical Composition
| S32750 | Content |
| C | 0.03max |
| Mn | 1.2max |
| P | 0.035max |
| S | 0.015max |
| Si | 0.8max |
| Cr | 24.0-26.0 |
| Ni | 6.0-8.0 |
| Mo | 3.0-5.0 |
| N | 0.24-0.35 |
| Cu | 0.5max |
Mechanical Properties
| Grade | Deasity(g/cm3 | Density(Ib/in3 | Melting Point(℃) | Melting point(°F) |
| S32750 | 7.8 | 0.281 | 1350 | 2460 |
Product Testing
Coating Thk Test
Geometry inspection
Ultrasonic Inspection
Nondestructive Testing
Hydrostatic Testing
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ASTM A815 S32750 Stainless Steel Fittings 1-1/2'' Equal Tee Super Duplex Steel B16.9 Images
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