Super Duplex Steel Seamless ASTM A815 S32750-S Fitting Corrosion Resistance
ASTM A815 S32750-S Fitting B16.9
ASTM A815 is an international standard that specifies the requirements for seamless and welded austenitic stainless steel pipe fittings. S32750, also known as X6Ni9Ti or Duplex 2205, is one of the grades covered under this standard.
S32750 is a duplex stainless steel that offers a combination of high strength and excellent corrosion resistance. This grade is typically used in applications where there is a requirement for high mechanical strength and good resistance to both localized and uniform corrosion.
When referring to "Fitting", it's important to understand that ASTM A815 covers a variety of pipe fittings such as elbows, tees, reducers, and more. The fitting could be in the form of a forged or fabricated component.
These fittings are usually made from seamless or welded austenitic stainless steel, and their fabrication process can involve heat treatment, cold working, and surface treatments. They are often used in industries like petrochemical, oil and gas, marine, and power generation due to their high strength and corrosion resistance properties.
For specific dimensions, material specifications, mechanical properties, and other details, you should refer to the latest edition of ASTM A815. Always ensure compliance with relevant safety standards and regulations when using or manufacturing these components.
Properties of S32750 Duplex Pipe Fittings
UNS S32750 Fittings Mechanical Properties
| Density | Melting Point | Yield Strength (0.2%Offset) | Tensile Strength | Elongation |
|---|---|---|---|---|
| 7.8 g/cm3 | 1350 °C (2460 °F) | Psi – 80000 , MPa – 550 | Psi – 116000 , MPa – 800 | 15 % |
Chemical Composition of UNS S32750 Duplex Pipe Fittings
| C | N | P | Si | Mn | Mo | Ni | Cr | S | Other |
|---|---|---|---|---|---|---|---|---|---|
| 0.030 | 0.24/0.32 | 0.035 | 0.80 | 1.20 | 3.0/5.0 | 6.00/8.00 | 24.0/26.0 | 0.020 | Cu:0.50 |
Super Duplex ASTM A815 WPS S32750 Pipe Fittings Equivalent Grades
| STANDARD | WERKSTOFF NR. | UNS |
|---|---|---|
| A815 WPS 32750 | 1.4410 | S32750 |
Application Of ASTM A815 S32750-S Fitting
1. Chemical Processing Industries
2. Power Generation
3. Oil and Gas Industry
4. Water Supply Systems
5. Aerospace Industry*
6. Automotive Industry
7. Food and Beverage Industries


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