Calico Metal Alloys LLP is a reputable supplier based in India, specializing in providing high-quality SMO 254 Fittings. Renowned for our commitment to excellence, we stand as a reliable source for top-notch fittings tailored to meet diverse industrial requirements. With a focus on precision engineering and superior quality, we cater to a wide range of sectors, ensuring efficiency and durability in every product. Trust us for your SMO 254 fitting needs, where expertise meets reliability.

What is SMO 254 Fittings?

SMO 254 fittings are components made from an austenitic stainless steel known as SMO 254, containing significant quantities of chromium, molybdenum and nitrogen. Known for its exceptional corrosion resistance in aggressive environments like seawater chloride solutions or acidic environments, SMO 254 fittings have many uses within industries including chemical processing, desalination and offshore oil and gas production.

SMO 254 Fittings

Manufacturing Process Of SMO 254 Fittings


Using a forging machine to lower the outside diameter and bevel the pipe end or extension is one method of making forged fittings.

Rolling Wheel

The core is inserted into the pipe using butt weld fittings. After that, processing the rim and pushing the exterior with a roller.


Expand the pipe end in the punching machine to the desired size and shape by using a tapered core.


for creating bend and elbow fits. There are three typical approaches. There are three or four rollers: one is for stretching, one for stamping, and the third is for rolling.


A rubber is inserted into the tube and compressed with a punch, causing the pipe to bulge; hydraulic bulging forming is an additional technique.

Advantages of SMO 254 Fittings

1. Corrosion Resistance: SMO 254 fittings provide exceptional corrosion protection in various corrosive environments such as seawater, acidic solutions and chloride-containing environments - this makes them suitable for industries including chemical processing, marine transportation and oil and gas where corrosion poses a substantial challenge.

2. High Strength: SMO 254 offers unsurpassed mechanical strength, making fittings made from this material ideal for applications requiring high pressure resistance without deforming or failing under stress or strain. As such, they make perfect choice in applications requiring this level of resistance.

3. Durability: Due to their high alloy content and robust composition, SMO 254 fittings are highly durable and boast long service lives under harsh operating conditions, saving costs over time due to reduced replacement needs or maintenance requirements. This durability has an immediate cost benefit in reduced replacement requirements and maintenance requirements.

4. Ease of Fabrication: SMO 254 can be easily fabricated using standard fabrication techniques such as welding, machining and forming for greater design freedom and installation flexibility, making life simpler for manufacturers and fabricators.

5. Heat Resistance: SMO 254 exhibits excellent heat resistance, making fittings made from this material ideal for applications involving exposure to elevated temperatures. Due to this resistance, SMO 254 can maintain their mechanical properties even at higher temps - ideal for use where exposure may occur.

6. Low Maintenance Costs: SMO 254 fittings require minimal upkeep due to their superior corrosion resistance and durability, cutting both downtime costs and long-term costs considerably - making them an economical long-term choice.

SMO 254 Fittings Specifications and Sizes

SMO 254 fittings are constructed using high-alloy austenitic stainless steel that offers exceptional corrosion resistance in chloride-rich environments, adhering to stringent specifications such as ASTM A403 and B366 to guarantee quality, reliability, compatibility with various industrial applications and robust longevity - ideal characteristics in demanding sectors like chemical processing, marine installations or offshore oil & gas operations where corrosion resistance plays an essential part of operations. They have become the go-to product in these demanding fields where resistance against corrosion plays a central role.

SMO 254 fittings offer flexibility to accommodate various piping applications. Their common sizes typically span from 1/2" to 12". From elbows, tees, reducers or couplings - SMO 254's wide variety provides engineers and designers ample choice when it comes to building robust corrosion-resistant systems tailored specifically for individual projects.

Specifications ASTM A403 / ASME SA403, ASTM A182 & ASME SA182
Forged Fittings Standards ASME 16.11, MSS SP-79, 83, 95, 97, BS 3799
Buttweld Fittings Dimensions ASME/ANSI B16.9, ASME B16.28, MSS-SP-43
Buttweld Fittings Size 1/2” NB to 24″NB in. (Seamless & 100% X-Ray Welded, Fabricated)
Forged Fittings Size 1/8” NB to 4” NB (Socketweld & Screwed-Threaded)
Buttweld Fittings Type Seamless / Welded / Fabricated
Forged Fittings Type Socketweld Fittings, Screwed-Threaded Fittings
Forged Fittings Class 2000 LBS, 3000 LBS, 6000 LBS, 9000 LBS
Buttweld Fittings Bending Radius R=1D, 2D, 3D, 5D, 6D, 8D, 10D or Custom
Buttweld Fittings Thickness Sch 5s, Sch 10s, Sch 40s, Sch 80s, Sch 160s, Sch XXS

Types Of SMO 254 Stainless Steel Fittings


SMO 254 Elbow


SMO 254 Tee


SMO 254 Reducer


SMO 254 Coupling


SMO 254 Pipe Cap


SMO 254 Union


Other Types Of SMO 254 Fittings

SMO 254 Buttweld Elbow SMO 254 Stub End
SMO 254 Fittings SMO 254 Socket weld Fittings
SMO 254 Pipe Fittings SMO 254 Industrial Fittings
SMO 254 Forged Fittings SMO 254 Threaded Fittings
SMO 254 90 Degree Elbow Buttweld Pipe Fittings
SMO 254 Seamless Fittings SMO 254 Welded Fittings
SMO 254 Half Couplings SMO 254 Concentric Reducer
ASME SA182 SMO 254 Forged Fittings ASTM A403 SMO 254 Butt weld Fittings
SMO 254 Pipe Bend SMO 254 Bushing
SMO 254 High Pressure Forged Fittings SMO 254 Threaded Plugs
ANSI B16.11 SMO 254 Forged Fittings ANSI B16.9 SMO 254 Pipe Fittings

Chemical Composition of SMO 254 Fittings

SMO 254 or 6Mo is an austenitic high-alloy stainless steel known for its exceptional corrosion resistance. Typically composed of 20-22% chromium, 6-7% nickel, 0.18-0.22% nitrogen and molybdenum with small amounts of copper, tungsten, manganese added for good measure, additionally this alloy also has extremely low carbon levels (less than 0.02%) and iron, to preserve its austenitic structure and fight pitting and crevice corrosion in aggressive environments like seawater and acidic solutions.

Mechanical Properties of SMO 254 Fittings

SMO 254 fittings showcase impressive mechanical properties, such as high tensile strength typically between 650 to 850 MPa and yield strength between 300-350 MPa, yield strength typically falling within 300-350 MPa range and excellent elongation and toughness, exceeding 50% elongation and having impact energy absorption capabilities. Furthermore, their mechanical integrity remains consistent across temperature fluctuations making these fittings suitable for many industries such as chemical processing, oil & gas and marine environments.

Applications of SMO 254 Fittings

SMO 254 is an austenitic stainless steel that exhibits superior corrosion resistance in harsh environments like seawater. Fittings manufactured using this material have numerous applications where high corrosion and temperature resistance is paramount, including food processing industries that rely heavily on SMO 254. Here are a few commonly-utilized applications:

1. Chemical Processing: SMO 254 fittings have become ubiquitous within chemical processing industries where highly aggressive substances such as sulfuric acid, phosphoric acid, hydrochloric acid or other aggressive acids must be handled. They're especially suitable for applications involving sulfuric acid, phosphoric acid hydrochloric acid or any similar compounds.

2. Oil & Gas Industry: Within the oil & gas sector, SMO 254 fittings find application in pipelines, offshore platforms, and equipment handling corrosive fluids like hydrogen sulfide-containing gas (sour gas), brine, or seawater. Their resistance to chloride-induced stress corrosion cracking makes them perfect for offshore installations.

3. Food and Beverage Industry: SMO 254 fittings have long been utilized within the food and beverage industries for processing plants that use acidic or salty solutions, providing superior corrosion resistance that ensures product quality and safety.

4. Pharmaceutical Manufacturing: SMO 254 fittings are widely employed in processes involving the creation of active pharmaceutical ingredients (APIs) and chemical compounds in pharmaceutical manufacturing processes, protecting product purity against corrosion caused by various chemicals used during these processes.

5. Water Treatment: SMO 254 fittings are widely utilized within water treatment facilities where aggressive disinfection and purification chemicals are utilized, protecting piping systems from corrosion while keeping integrity intact. They offer reliable protection in such hostile environments.

6. Mining and Metallurgy: SMO 254 fittings have applications in mining and metallurgical processes where harsh corrosive chemicals are employed for ore processing and metal extraction.

Overall, SMO 254 fittings play an invaluable role in industries where corrosion resistance, high strength and reliability are critical aspects of equipment and infrastructure design and implementation.

Electrical Industry


Automotive Industry


Construction Industry


Defence Industry


Pharmaceutical Industry


Petroleum Industry


Petrochemical Industry


Milk & Dairy Industry

Milk & Dairy

Export & Supply Destinations Of SMO 254 Fittings

Austria, Finland, Spain, Germany, Sweden, Russia, Portugal, Turkey, Greece, Belgium, Hungary, Estonia, France, United Kingdom, Poland, Denmark, Italy, Netherlands, Ireland, Latvia, Croatia, Switzerland, Lithuania, Serbia, Azerbaijan, Bulgaria, Czechia/Czech Republic, Monaco, Slovakia, Malta, Liechtenstein, Norway, Luxembourg, Ukraine, Romania, Moldova, Belarus, Cyprus.

Kyrgyzstan, Oman, Maldives, Jordan, Bahrain, Singapore, Sri Lanka, Myanmar, British, Thailand, Vietnam, Iran, Turkey, Philippines, South Korea, Macau, United Arab Emirates, Afghanistan, Saudi Arabia, Israel, North Korea, Iraq, Bhutan, Kuwait, Hong Kong, Mongolia, Qatar, Armenia, Azerbaijan, Lebanon, India, China, Taiwan, Russia, Japan, Nepal, Bangladesh, Egypt, Indonesia, Malaysia.

Algeria, Tunisia, Senegal, Mozambique, Niger, Burundi, Nigeria, Zambia, Liberia, Angola, Rwanda, Libya, Madagascar, Namibia, Uganda, Mauritius, Morocco, Gambia, Egypt, South Africa, Eswatini, Ethiopia, Botswana, Seychelles, Kenya, Cameroon, Central African Republic, Mauritania, Burkina Faso, Tanzania, Zimbabwe.

United States of America, Dominican Republic, Belize, Panama, Guatemala, Bahamas, Cuba, Trinidad and Tobago, Canada, Saint Vincent and the Grenadines, Dominica, Mexico, Jamaica, Nicaragua, Haiti, Costa Rica, El Salvador, Grenada, Antigua and Barbuda, Barbados, Honduras, Saint Lucia.

Colombia, Ecuador, Brazil, Venezuela, Guyana, Uruguay, Argentina, Paraguay, Chile, Peru, Bolivia, Suriname.