Teerasil Fittings and Plates is a reputed SMO 254 Buttweld Fittings manufacturer and supplier company based in Bangkok, Thailand, that deals in high-performance fittings that are highly resistant to corrosion and aggressive environments. SMO 254 Buttweld Fittings are suitable for applications that demand pitting, crevice corrosion, and stress corrosion cracking resistance. With a focus on accuracy and longevity, Teerasil guarantees its products adhere to high quality standards, positioning them as the preferred industry choice for applications such as oil and gas, chemical processing, and marine environments, where strength and corrosion resistance are paramount.
Specifications : ASTM A403 / ASME SA403
Dimensions : ASME/ANSI B16.9, ASME B16.28, MSS-SP-43
Size : 3/4″ – 12″
Type : Seamless / Welded / Fabricated
Schedule : Sch 5 TO Sch XXS.
Thickness : 20 Swg., 18 Swg., 16 Swg., 14 Swg., 12 Swg., 10 Swg., & Sch. 10, Sch. 40, Sch. 80 etc.
SMO 254 Buttweld Fittings consist of a superaustenitic stainless steel alloy with around 6% molybdenum, 20% chromium, and 18% nickel content, which provides outstanding resistance to corrosion, especially in environments that are chloride-rich. The high molybdenum content of the alloy gives better pitting and crevice corrosion resistance, and the high chromium content gives good oxidation resistance. The mechanical properties of SMO 254 are excellent with a tensile strength of up to 750 MPa and a yield strength of 450 MPa, making it suitable for high-temperature and high-pressure applications.
| Grade | % | Ni | Cr | Mo | Cu | N | C | Mn | Si | P | S |
| SMO 254 | 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 |
| Element | Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| SMO 254 | 8.0 g/cm3 | 1320-1390 ℃ | 650 | 300 | 35 % |
Teerasil Fittings is a leading supplier of SMO 254 Buttweld Fittings in Bangkok, Thailand. We offer an extensive range of SMO 254 Buttweld Fittings, renowned for their excellent corrosion resistance and high strength, which makes them perfect for demanding industrial applications like chemical processing, marine environments, and high-temperature systems. With a commitment to quality and reliable delivery, we ensure our clients receive top-tier products tailored to meet the specific needs of various industries.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
| STANDARD | WERKSTOFF NR. | UNS | JIS | SIS | GOST | AFNOR | EN |
| SMO 254 | 1.4547 | S31254 | – | 2378 | – | Z1 CNDU 20.18.06Az | X1CrNiMoCuN20-18-7 |
SMO 254 Buttweld Fittingsfrom Teerasil Fittings offer exceptional corrosion resistance, especially in seawater and harsh environments. They are known for their high strength, durability, and resistance to pitting and crevice corrosion, ensuring long-lasting performance. We provide precise manufacturing, quality control, and reliable service for diverse industrial applications.
SMO 254 Buttweld Fittings provide excellent resistance to pitting, crack corrosion, and stress corrosion cracking, making them ideal for harsh environments such as chemical, marine and offshore applications. These materials also provide excellent weldability and formability, resulting in reliable and durable connections. SMO 254’s ability to withstand extreme temperature and pressure fluctuations adds great versatility under challenging industrial conditions. Its overall durability and reliability reduce maintenance and replacement costs.
All dimensions given in inches for common diameters and wall thicknesses. Dimensions in accordance with ASME B16.9. Other sizes, schedules and wall thicknesses also available. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Yes, custom sizes for SMO 254 Buttweld Fittings are available at Teerasil Fittings. We offer tailored solutions to meet your specific requirements, ensuring optimal performance for your projects. For more information, please contact us at sales@teerasilfittings.com.
SMO 254 Buttweld Fittings find extensive use in industries where they are required to exhibit corrosion resistance, for example, chemical, petrochemical, and oil and gas industry. These fittings are well-suited for offshore oil rig applications, seawater desalination plants, and industrial piping systems for flowing corrosive fluids. The high chloride stress corrosion cracking resistance of the alloy makes it ideal for use in marine environments, heat exchangers, and high-pressure vessels. Moreover, SMO 254 is utilized in applications that include acids, chemicals, and high-temperature applications where conventional materials would collapse as a result of corrosion or degradation.
Get in touch with one of our Technical Sales Representatives to request a quote or get answers to any questions you may have.








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