SMO 254 Pipe Fittings & Flanges

SMO 254, also known as UNS S31254 or 6Mo, is a high-alloy austenitic stainless steel specifically developed for use in highly corrosive environments. With a balanced composition of chromium, nickel, molybdenum, and nitrogen, SMO 254 provides exceptional resistance to pitting, crevice corrosion, and stress-corrosion cracking, even in environments containing chlorides and seawater.

Because of its superior performance, SMO 254 pipe fittings and flanges are widely used in industries such as chemical processing, desalination, marine, pulp & paper, and offshore oil & gas. These components ensure reliable service life where conventional stainless steels like 316L or duplex grades may fail.

Key Features of SMO 254 Pipe Fittings & Flanges

• ♦  Excellent Corrosion Resistance: Designed for maximum resistance against chloride-induced corrosion and acidic conditions.

• ♦  High Strength: Provides mechanical strength greater than many conventional stainless steels.

• ♦  Resistance to Pitting & Crevice Corrosion: PREN (Pitting Resistance Equivalent Number) > 42 ensures long service life in seawater and brine.

• ♦  Superior Weldability & Fabrication: Easy to machine and weld, allowing flexible design solutions.

• ♦  Cost-Effective Alternative: In some cases, SMO 254 is a more economical option compared to higher-cost nickel alloys.

Types of SMO 254 Pipe Fittings

We supply a wide range of SMO 254 buttweld and forged fittings suitable for various piping systems. These fittings meet international standards such as ASTM, ASME, and MSS.

• ♦  Elbows (45°, 90°, 180°): For changing the direction of pipelines.

• ♦  Tees (Equal & Reducing): Provide branching in piping systems.

• ♦  Reducers (Concentric & Eccentric): Connect pipes of varying diameters.

• ♦  Caps & Stub Ends: Used for pipe closure or for connection with flanges.

• ♦  Forged Fittings: Includes couplings, unions, nipples, crosses, and plugs for high-pressure applications.

Types of SMO 254 Flanges

SMO 254 flanges are engineered for use in corrosive and high-pressure environments. They are available in a variety of pressure classes and face types, complying with ASME and international standards.

• ♦  Weld Neck Flanges: Suitable for high-pressure and high-temperature services.

• ♦  Slip-On Flanges: Economical option for low-pressure systems.

• ♦  Blind Flanges: Used for sealing pipe ends or isolating systems.

• ♦  Socket Weld Flanges: Ideal for small-diameter, high-pressure piping.

• ♦  Threaded Flanges: Provide quick assembly without welding.

• ♦  Lap Joint Flanges: Useful in applications requiring frequent dismantling.

• ♦  Ring Type Joint (RTJ) Flanges: Ensure leak-proof sealing in demanding conditions.

Applications of SMO 254 Pipe Fittings & Flanges

Because of their outstanding corrosion resistance and strength, SMO 254 fittings and flanges are extensively used in the following industries:

• ♦  Desalination Plants: Piping systems handling seawater and brine.

• ♦  Chemical & Petrochemical Industries: Suitable for sulfuric acid, phosphoric acid, and hydrochloric acid processing.

• ♦  Marine & Offshore Applications: Performs well in seawater environments and offshore oil & gas platforms.

• ♦  Pulp & Paper Industry: Resistant to bleaching chemicals and corrosive liquids.

• ♦  Food & Beverage Industry: Ensures hygienic and corrosion-free processing systems.

• ♦  Power Generation: Used in heat exchangers, condensers, and cooling systems.

Standards & Specifications

SMO 254 fittings and flanges are manufactured to meet strict international standards and dimensional requirements.

• ♦  Material Grade: SMO 254 / UNS S31254 / WNR 1.4547

• ♦  Standards: ASTM A403, ASTM A182, ASME B16.5, ASME B16.9, ASME B16.11, MSS SP-43

• ♦  Size Range: ½” to 48” (custom sizes available on request)

• ♦  Pressure Ratings: Class 150, 300, 600, 900, 1500, 2500

• ♦  Forms Available: Seamless, welded, fabricated fittings, and forged flanges

Why Choose Us for SMO 254 Pipe Fittings & Flanges?

• ♦  Superior Quality: Products undergo stringent quality checks, including hydro testing, PMI (Positive Material Identification), and ultrasonic testing.

• ♦  Extensive Stock: Ready-to-ship inventory in various sizes and dimensions.

• ♦  Customization: Tailored manufacturing based on client specifications and project requirements.

• ♦  Compliance: All products manufactured as per ASTM, ASME, DIN, and international standards.

• ♦  Competitive Pricing: Best value solutions without compromising quality.

• ♦  Global Reach: On-time delivery for domestic and international projects.

Conclusion

SMO 254 pipe fittings and flanges are the perfect choice for industries dealing with aggressive environments where conventional stainless steels and duplex grades fall short. Their superior resistance to pitting, crevice corrosion, and stress-corrosion cracking ensures reliability in applications such as seawater handling, chemical processing, and offshore operations.

By choosing a trusted supplier, you can ensure that your SMO 254 fittings and flanges meet the highest international standards, offering durability, efficiency, and cost-effectiveness for your critical projects.

If you are looking for premium-quality SMO 254 fittings and flanges, we offer a comprehensive range to meet your project needs with assured performance and reliability.