Calico Metal Alloys LLP is India's top Supplier and exporter of SMO 254 Flanges, boasting quality and reliability products at unrivalled rates. As specialists in offering premium SMO 254 Flanges tailored specifically for each of our client needs, we offer top quality Flange products backed by exceptional service, suitable for industrial as well as commercial applications alike! Call on Calico Metals today - we are standing ready to meet any and all SMO 254 Flange requirements with efficiency.

What Are SMO 254 Flanges?

SMO 254 flanges refer to high-alloy austenitic stainless steel SMO 254, known for its exceptional corrosion resistance, typically used in industries with harsh environments where resistance against acids or seawater are essential, including chemical processing plants, offshore oil & gas installations and desalination plants. SMO 254 offers outstanding reliability & durability making these ideal components for critical applications requiring reliability & durability in harsh conditions such as chemical processing plants or offshore oil and gas platforms or desalination plants.

SMO 254 Flanges

Manufacturing Process Of SMO 254 Flanges

Raw Material

The system controls inspect the raw material quality at the first stage in accordance with the test certificate as well as dimensions and appearance.

Material Cutting

This method of making flanges involves cutting stripes from the center plate and rolling them into a circle.


Compared to cast flanges, forged flanges typically contain less carbon and are less likely to corrode. Temperature control, weight measurement, and material grade checking are used in forgings.

Heat Treatment

The total forging cooling speed is the slowest throughout this heat treatment procedure; the standardizing and decreasing cooling speeds are faster.

Final Inspection

Measure and check the flange's dimensions and size using this procedure.

Advantages of SMO 254 Flanges

SMO 254 flanges offer superior corrosion resistance and strength for use in industrial settings with demanding requirements.

1. Corrosion Resistance: SMO 254 flanges offer outstanding corrosion resistance, such as pitting corrosion and stress corrosion cracking, making them suitable for harsh environments like seawater, brackish water, acidic solutions or chloride-rich conditions.

2. High Strength: SMO 254 boasts outstanding mechanical strength, making SMO 254 flanges suitable to endure high pressures and temperatures without deforming or failing under strain - something especially advantageous in industries like chemical processing, oil & gas exploration & production and desalination.

3. Wide Temperature Range: SMO 254 is designed to maintain its mechanical properties over an extensive temperature range, making it suitable for applications at both cryogenic temperatures and elevated temperatures.

4. Easy Fabrication: SMO 254 can easily be assembled using conventional welding, machining and forming techniques - this allows custom flanges tailored specifically to individual specifications to be produced quickly with reduced lead times and costs.

5. Longevity: Due to their exceptional corrosion resistance and durability, SMO 254 flanges boast long service lives with reduced maintenance costs and downtime costs.

SMO 254 Flanges offer reliable solutions for critical systems in different industries due to their superior durability and performance.

SMO 254 Flanges Specifications

Standard ASTM A182 / ASME SA182
Dimensions ANSI/ASME B16.5, B16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, GOST Flange, ASME/ANSI B16.5/16.36/16.47A/16.47B, MSS S44, ISO70051, JISB2220, BS1560-3.1, API7S-15, API7S-43, API605, EN1092
Flange Size Chart 1/2" (15 NB) to 48" (1200NB), DN10~DN5000
Pressure Rating Class 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS
Pressure Calculation in DIN 6Bar 10Bar 16Bar 25Bar 40Bar / PN6 PN10 PN16 PN25 PN40, PN64
JIS 16 K, 5K, 10 K, 20 K, 30 K, 40 K, 63 K
Flange Connection / Flange Face Type Raised Face (RF), Ring Type Joint (RTJ), Flat Face (FF), Large Male-Female (LMF), Lap-Joint Face (LJF), Small Male-Female (SMF), Small Tongue, Large Tongue & Groove, Groove, Flange Pipe.
Origin West Europe / Japan / Indian / USA / Korean
Types of Flanges Threaded / Screwed / Forged / Plate
Coating Yellow Transparent, Zinc Plated, Anti-rust Paint, Oil Black Paint, Cold and Hot Dip Galvanized
Production technique Used Heat treated, Forged and Machined
Equipment Press machine, Bending machine, Pushing Machine, Sand-blasting machine, electric bevelling machine etc.
Test Certificates EN 10204/3.1B, Raw Materials Certificate, 100% Radiography Test Report, Third Party Inspection Report, etc

Types Of SMO 254 Flanges


SMO 254 Weld Neck Flange


SMO 254 Blind Flange


SMO 254 Slip on Flange


SMO 254 Socket weld Flange


SMO 254 Spectacle Blind Flange


SMO 254 Threaded Flange


Other Types Of SMO 254 Flanges

SMO 254 Flanges SMO 254 Lap Joint Flange
SMO 254 Long Weld Neck Flange SMO 254 Industrial Flanges
SMO 254 Forged Flanges SMO 254 RTJ Flange
SMO 254 Stainless Steel Plate Flange SMO 254 Square Flange
F51 SMO 254 Flanges SMO 254 F51 SORF Flange
SMO 254 WNRF Flange SMO 254 SWRF Flanges
ASME SA182 SMO 254 Flanges ASTM A182 SMO 254 Flange
SMO 254 Flat Face Flange SMO 254 BS 4504 Flanges
SMO 254 Orifice Flange SMO 254 Groove & Tongue Flanges
ANSI B16.5 SMO 254 Flanges SMO 254 Loose Flange

SMO 254 Flanges Equivalent Grade

SMO 254 1.4547 S31254 - 2378 - Z1 CNDU 20.18.06Az X1CrNiMoCuN20-18-7

Chemical Composition of SMO 254 Flanges

SMO 254 flanges contain an ample portion of chromium (typically 20%) for superior corrosion protection in harsh environments like seawater and acidic environments, as well as notable amounts of nickel (approx. 18%) and molybdenum (app. 6%) that further improve resistance against pitting corrosion and pitting corrosion, plus alloying elements like nitrogen and copper which enhance strength and durability - ideal characteristics that make SMO 254 ideal for demanding chemical processing applications within chemical processing industries, marine industries or offshore industries alike.

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

Mechanical Properties of SMO 254 Flanges

SMO 254 flanges exhibit impressive mechanical properties, boasting impressive tensile strengths ranging between 650 to 850 MPa to ensure structural integrity under extreme conditions, along with impressive yield strengths of 300 to 350 MPa which allows resilience against deformation and stress, good yield strength resilience against deformation/stress as well as good ductility/toughness to endure dynamic loads and impacts without failure, making these exceptional mechanical properties suitable for applications including oil & gas, chemical processing plants desalination plants etc. Ultimately these exceptional mechanical properties make SMO 254 Flanges an invaluable resource suited to oil & Gas, chemical processing plants as well as desalination plants.

Element Density Melting Point Tensile Strength Yield Strength (0.2%Offset) Elongation
SMO 254 8.0 g/cm3 1320-1390 ℃ 650 300 35 %

Applications of SMO 254 Flanges

SMO 254 is a high-alloy austenitic stainless steel with excellent corrosion resistance. SMO 254 flanges, which are made from this material, find various applications in industries where corrosion resistance, high strength, and durability are required. Some common applications of SMO 254 flanges include:

  1. Chemical Processing: SMO 254 flanges are extensively used in chemical processing industries where they come into contact with corrosive chemicals, acids, and solvents. These flanges offer excellent resistance to a wide range of corrosive media including sulfuric acid, phosphoric acid, and chloride solutions.
  2. Oil and Gas Industry: In the oil and gas industry, particularly in offshore and marine environments where exposure to seawater and harsh environments is common, SMO 254 flanges are preferred due to their superior corrosion resistance properties. They are used in various applications such as pipelines, offshore platforms, and subsea equipment.
  3. Power Generation: In power generation facilities, particularly in plants utilizing seawater for cooling purposes, SMO 254 flanges are utilized to withstand the corrosive effects of seawater and other chemicals present in cooling systems. They are also used in heat exchangers, boilers, and condensers.
  4. Food and Beverage Industry: SMO 254 flanges are employed in the food and beverage industry for applications involving the processing, storage, and transportation of food products. They offer high levels of cleanliness, resistance to corrosion from food acids, and compliance with hygiene standards.
  5. Pharmaceutical Industry: SMO 254 flanges find applications in the pharmaceutical industry where they are used in equipment and piping systems for the production of drugs, pharmaceutical intermediates, and other related products. Their corrosion resistance and compatibility with pharmaceutical processes make them suitable for such applications.
  6. Wastewater Treatment: In wastewater treatment plants, SMO 254 flanges are utilized in various components such as pumps, valves, and piping systems where they are exposed to corrosive wastewater and chemicals. They help in maintaining the efficiency and longevity of the treatment systems.

Overall, SMO 254 flanges are chosen for their exceptional corrosion resistance, high strength, and reliability in demanding industrial environments across various sectors.

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 Flanges

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

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

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

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

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