Tim Fittings, located in Wellington, New Zealand, stands out as a top-notch manufacturer and supplier of high-quality SMO 254 Buttweld Fittings. Renowned for their precision engineering and durability, Tim Fittings offers products that adhere to strict industrial and international standards. Their SMO 254 Buttweld Fittings are known for exceptional corrosion resistance, impressive strength, and reliable performance, making them perfect for critical piping systems in tough environments. Catering to sectors like chemical processing, petrochemical, marine, and power generation, Tim Fittings guarantees that each fitting provides long-lasting performance, operational safety, and efficiency. Their dedication to quality and innovation has made them a trusted ally in the realm of industrial piping solutions.
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.
The SMO 254 Buttweld Fittings are primarily made up of iron, with 20–22% chromium, 18–20% nickel, 6–7% molybdenum, and 0.2–0.5% nitrogen, which gives them remarkable resistance to pitting, crevice corrosion, and stress corrosion cracking. These fittings boast impressive mechanical properties, including a tensile strength of 650–800 MPa, yield strength of 300–450 MPa, and an elongation of 30–40%. With their superior toughness, ductility, and stability at high temperatures, SMO 254 Buttweld Fittings are well-suited for high-pressure, highly corrosive, and demanding industrial applications, ensuring they last and perform reliably in critical piping systems.
| 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 % |
Tim Fittings is a leading supplier of SMO 254 Buttweld Fittings in Wellington, New Zealand. 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 Tim 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 Tim Fittings. We offer tailored solutions to meet your specific requirements, ensuring optimal performance for your projects. For more information, please contact us at sales@timfittings.co.nz.
SMO 254 Buttweld Fittings are extensively utilized in industries that need corrosion-resistant, high-strength piping components. They’re commonly found in chemical and petrochemical plants, seawater applications, marine engineering, and power generation facilities. Their strength and resistance to harsh chemicals make them ideal for pipelines, heat exchangers, pressure vessels, and high-pressure piping systems. Additionally, SMO 254 Buttweld Fittings are used in desalination plants, the pulp and paper industry, and pharmaceutical applications. Tim Fittings’ SMO 254 Buttweld Fittings ensure safe, efficient operations across various demanding environments.
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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