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ASTM A815 Super Duplex Steel Pipe Fitting UNS S32750 90 Degree LR Elbow
ASTM A815 UNS S32750 duplex pipe fittings and other duplex steel like UNS S31803, S32750 are also very popular in marine industries, nuclear projects, power plants and other chemical industries service. Because it offers excellent fatigue strength, good weldability, superior corrosion resistance compared to regular stainless steel. It is necessary to consider all aspects before choosing the material of fittings. YUHONG has rich experience in providing duplex pipes/fittings/flanges for overseas projects, and win good reputation. If there any products interest you, please feel free to contact me for more information.
ASTM A815 UNS S32750 Pipe Fittings Equivalent Grades
| STANDARD | WERKSTOFF NR. | Sweden SS | UNS |
| Super Duplex | 1.4410 | 2328 | S32750 |
ASTM A815 UNS S32750 Pipe Fittings Chemical Compositions
| Chemical Element | C | Cr | Mn | Si | P | S | Ni | N | Mo | Cu | Fe |
| % Present | 0.0 - 0.03 | 24.00 - 26.00 | 0.0 - 1.20 | 0.0 - 0.80 | 0.0 - 0.04 | 0.0 - 0.02 | 6.00 - 8.00 | 0.24 - 0.32 | 3.00 - 5.00 | 0.0 - 0.50 | Balance |
ASTM A815 UNS S32750 Pipe Fittings Mechanical Properties
| Mechanical Property | Proof Stress | Tensile Strength | Elongation A50 mm | Hardness Brinell |
| Value | 550 Min MPa | 800-965 MPa | 15 Min % | 310 Max HB |
ASTM A815 UNS S32750 Pipe Fittings Mechanical Properties
| Grade | Density (g/cm 3) | Density (lb/in 3) | Melting Point (°C) | Melting Point (°F) |
| UNS S32750 | 7.8 | 0.281 | 1350 | 2460 |
What is the difference between UNS S32750 and S32760?
S32760 Super Duplex Stainless Steel While involving extended exposure to temperatures more than 572F use of S32760 is not recommended. The chemical composition of S32750 and S32760 are similar; however, the latter contains slightly more copper and tungsten.
Applications
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.
