
ASTM A269 UNS S31254 Tube
1. Standard: ASTM A269 / ASME SA269
2. Size: 6 mm -200 mm
3. Thickness: 0.6 mm - 12.7mm
4. Equivalent:UNS S31254, WNR.1.4547, AISI 254 SMO, F44
ASTM A269 UNS S31254 tube is a super austenitic stainless steel with high molybdenum content. UNS S31254 has excellent corrosion resistance and mechanical strength, and can resist erosion by various corrosive media, including salt water, chlorides, sulfuric acid, nitric acid, etc.
In addition, 254 SMO UNS S31254 also has excellent heat resistance and resistance to stress corrosion cracking, suitable for applications in high temperature and high pressure environments. Our company is a alloy 254SMO supplier with 15+ export experience, contact us for more information and free quotes!
ASTM A269 UNS S31254 Stainless Steel Tube Standard:
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ASTM A269: Standard Specification for Seamless and Welded Austenitic Stainless Steel Tubing for General Service
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Available forms for 254 SMO: Fittings, Flanges, Forgings, Fasteners, Pipes, Tubes, Plates, Sheets, Strips, Coils, Bars, Round Rods, Etc.
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Other Grades: 310S, 317, 317L, 321, 321H, 347, 347H, 904L, 254SMO, 253MA, S32550, S32205, S31803, 2507, S31050, S30815, Etc.

6MO UNS S31254 Seamless Pipe Chemical Composition
| Grade | SMO 254 |
| Ni | 17.5 – 18.5 |
| C | 0.02 max |
| Mo | 6 – 6.5 |
| Mn | 1 max |
| Si | 0.8 max |
| Cu | 0.5 – 1 |
| S | 0.01 max |
| P | 0.03 max |
| Cr | 19.5 – 20.5 |
UNS S31254 F44 Stainless Steel Mechanical Properties
| Grade | SMO 254 |
| Density | 8.0 g/cm3 |
| Melting Point | 1320-1390 °C |
| Yield Strength (0.2%Offset) | 300 |
| Tensile Strength | 650 |
| Elongation | 35% |
SMO 254 / UNS S31254 Tubes Equivalent Grades
- UNS: S31254
- EN Number: 1.4547
- EN Name: X1CrNiMoCuN20-18-7
- W.Nr.: 1.4529
- SS: 2378
- AFNOR: Z1 CNDU 20.18.06AZ
ASTM A269 UNS S31254 SS Tubing Applications:
- Oil and Gas
- Chemical
- Petroleum
- Pharmaceutical
- Food processing
- Marine engineering
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