Yuhong Group Co.,Ltd
Yuhong Holding Group Co.,LTD
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B16.9 ASTM A815 WPS32750 Super Duplex Steel Pipe Fitting 45 Degree SR Elbow
YUHONG GROUP is one of the biggest projects pipeline products supplier in China. Our products contain steel pipes / tubes,fittings and flanges. With decades of development, we have accumulated a great many clients all around the world and YUHONG products also won the great praise among the customers.
ASTM A815 covers Duplex Steel and Super Duplex Pipe Fittings / Buttweld Fittings used for bleaching equipment in the pulp and paper industry also for high-temperature service. UNS S32750 duplex pipe fittings is one of the buttweld fittings and is available in various shapes, sizes and specifications. It is used in marine industries, nuclear projects, power plants and other chemical industries. Several grades are also involved like ASTM A815 UNS S31803, A815 UNS S32750 lot more.
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 S32205 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 |
UNS S32205 Equivalent Grades
| STANDARD | WERKSTOFF NR. | UNS |
| Super Duplex | 1.4410 | S32750 / S32760 |
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.