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
Image
