| Standard: | ASTM A403， ASME SA403 | Material Grade: | WPS31254， 254 SMO |
|---|---|---|---|
| Technics: | Butt Weld | Size: | 1/2”-48”(DN15-DN1200) |
| Schedule: | SCH 10S To SCH XXS | Type: | Elbow，Nipple，Pipe Threaded，Reducer |
| Connection: | Welding，Female，Male | Application: | Construction，gas And Oil Pipes，air，Steam，Petroleum Gas Water |
Butt Weld Fittings ASTM A403 WPS31254-W， 254 SMO Duplex Stainless Steel Reducer B16.9
The ASTM A403 WPS31254 Pipe Fittings is made of chromium， molybdenum， and nickel， which enables fittings to exhibit excellent corrosion and oxidation resistance properties in various allications. The 254 SMO Buttweld Pipe Fittings have low concentrations of carbon but have superior mechanical properties. ASTM A403 UNS S31254 Buttweld Pipe Fittings are also known as 254 SMO buttweld pipe fittings. They have excellent corrosion resistance and mechanical strength. The alloy is ductile and has excellent corrosion resistance in a diverse range of environments.
Equivalent Grades:
| STANDARD | WERKSTOFF NR. | UNS | SIS | AFNOR | EN |
| 254 SMO | 1.4547 | S31254 | 2378 | Z1 CNDU 20.18.06Az | X1CrNiMoCuN20-18-7 |
Specifications:
| Dimensions | ASME B16.28， MSS-SP-43， ASME/ANSI B16.9， BS4504， BS10， BS4504， BS1560 |
| Thickness | SCH10， SCH80， SCH100， SCH20， SCH30， STD SCH40， SCH 160， XXS， SCH60， XS， SCH120， SCH140， available with NACE MR 01-75 |
| Type | DN15-DN1200 |
| Connection | Welding |
| Bending Radius | R=2D， 3D， 5D， 6D， 8D， 1D， 10D or Custom |
| Manufacturing process | Press， Forge， Push， Cast， etc. |
| Fitting Types | Tees， Crosses， Reducers， Elbows， Stub End， Pipe Bend， Pipe Cap |
Chemical Structure:
| % | Ni | Cr | Mo | Cu | N | C | Mn | Si | P | S |
| Min. | 17.5 | 19.5 | 6 | 0.5 | 0.18 | – | – | – | – | – |
| Max. | 18.5 | 20.5 | 6.5 | 1 | 0.22 | 0.02 | 1 | 0.8 | 0.03 | 0.01 |
Mechanical Properties:
| Density | Melting Point | Yield Strength (0.2%Offset) | Tensile Strength | Elongation，min |
| 8000 kg/m3 | 1320-1390 ℃ | 300 | 650 | 35 % |
Applications:
Petroleum Industries
Chemical Processing Equipments
Paper And Pulp Industries
Oil And Gas Equipments
Desalination Plants
Food Processing Industry
Water Supply Systems
