Calico Metal Alloys LLP is a reputable supplier of high-quality SMO 254 bars in India. With a commitment to excellence, we have established ourselves as a trusted source for premium metal alloys. Specializing in SMO 254 bars, we offer top-notch products that meet stringent quality standards. Whether for industrial or commercial applications, customers can rely on us for reliable, durable, and superior-grade SMO 254 bars.

What are SMO 254 Bars?

SMO 254 bars are high-alloy austenitic stainless steel bars known for their exceptional corrosion resistance in aggressive environments, such as seawater and acidic solutions. They contain significant amounts of chromium, molybdenum, and nitrogen, offering superior resistance to pitting, crevice corrosion, and stress corrosion cracking. SMO 254 bars are widely used in industries like chemical processing, marine engineering, and oil and gas production due to their excellent mechanical properties and reliability in demanding conditions.

SMO 254 Bars

Manufacturing Process Of SMO 254 Bars


The first step in the process is melting raw materials in an electric furnace. These raw materials are typically iron ore, chromium, nickel, and other elements in exact amounts.


After melting, the metal is put into molds to form slabs or billets. The processing of these first forms is then continued.

Hot Rolling

After being heated, the billets are shaped into long, thin rods by going through a series of rolling mills. Because the metal is heated above its recrystallization temperature during this operation, it is known as hot rolling.


After that, the rods are annealed to reduce stress and enhance machinability. In order to do this, the rods must first be heated to a certain temperature and then gradually cooled.


Lastly, shearing machines or other cutting techniques are used to cut the rods to the required length.

Advantages of SMO 254 Bars

  1. Corrosion Resistance: SMO 254 bars exhibit outstanding corrosion resistance in a wide range of aggressive media, including seawater, acids, alkalis, and chloride-containing environments. This makes them suitable for use in industries such as chemical processing, oil and gas, and desalination plants.
  2. High Strength: SMO 254 bars have high strength, allowing them to withstand high-pressure and high-temperature applications. This makes them suitable for use in demanding environments where strength and durability are essential.
  3. Excellent Weldability: SMO 254 bars are readily weldable using conventional welding techniques. This facilitates fabrication processes, allowing for the creation of complex structures and components.
  4. Durability in Extreme Conditions: SMO 254 bars maintain their mechanical properties and corrosion resistance even in extreme temperatures and environments, making them suitable for use in both high-temperature and cryogenic applications.
  5. Low Maintenance: Due to their high corrosion resistance and durability, SMO 254 bars require minimal maintenance over their service life, reducing downtime and maintenance costs for industrial applications.
  6. Longevity: SMO 254 bars have a long service life due to their excellent corrosion resistance and durability, providing cost savings over time compared to other materials that may require frequent replacement or maintenance.
  7. Versatility: SMO 254 bars can be used in a wide range of applications, including equipment and components for chemical processing, offshore and marine environments, pulp and paper industry, and desalination plants, among others, demonstrating their versatility across various industries.

SMO 254 Bars Specifications

Specifications ASTM A276, A279, A479
Size 1/2″ to 100″
Length 100 mm to 6000 mm
Diameter 5mm~ 500 mm
Finish Black, Bright Polished, Rough Turned, NO.4 Finish, Matt Finish, BA Finish
Form Round, Square, Hex (A/F), Rectangle, Billet, Ingot, Forging Etc.
Condition Cold Drawnd Polished Cold Drawn Centreless Ground & Polished.

Types Of SMO 254 Bars


SMO 254 Square Bar


SMO 254 Bright Bar


SMO 254 Flat Bar


SMO 254 Forged Bar


SMO 254 Cold Drawn Round Bar


SMO 254 Rod


Other Types Of SMO 254 Bars

SMO 254 Bars SMO 254 Hexagonal Bar
SMO 254 Threaded Rod SMO 254 Industrial Bars
Precision Ground SMO 254 Bars SMO 254 Round Bar
SMO 254 SS Bars SMO 254 Square Bar
SMO 254 F51 Bars SMO 254 F51 Rod
SMO 254 Hot Rolled Bar SMO 254 Half-Round Bar
ASME SA276 SMO 254 Precision Ground Bar ASTM A276 SMO 254 Bars
SMO 254 Rectangular Bar SMO 254 Cold Finish Round Bar
SMO 254 Polished Bar SMO 254 Half-Round Bars

SMO 254 Equivalent Grade

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

Chemical Composition of SMO 254 Bars

SMO 254 bars typically consist of a high level of chromium, nickel, molybdenum, and nitrogen, with additions of copper and tungsten for enhanced corrosion resistance in harsh environments. The chemical composition usually ranges from approximately 20-22% chromium, 17-20% nickel, 6-7% molybdenum, and 0.18-0.22% nitrogen, along with trace amounts of copper and tungsten. This combination provides excellent resistance to both general corrosion and pitting in chloride-rich environments, making it suitable for various applications in industries such as chemical processing and marine engineering.

Grade C S Ni Mo Si Fe
SMO 254 0.02 max 0.01 max 17.5 – 18.5 6 – 6.5 0.8 max

Mechanical Properties of SMO 254 Bars

SMO 254 bars are known for their exceptional mechanical properties, exhibiting high strength and corrosion resistance. With a tensile strength ranging from 650 to 850 MPa and a yield strength exceeding 300 MPa, these bars offer excellent durability even in harsh environments. Additionally, their impressive elongation at break of 35% or higher ensures resilience and ductility, making them suitable for a wide range of demanding applications in industries such as chemical processing, marine, and oil and gas.

Element Density Melting Point Tensile Strength Yield Strength (0.2%Offset) Elongation
SMO 254 8.0 g/cm3 1320-1390 ℃ 650 Psi – 35,000 , MPa – 240 35 %

Applications of SMO 254 Bars

SMO 254 is a high-alloy austenitic stainless steel with exceptional resistance to corrosion, particularly in environments containing halides such as chlorides and bromides. SMO 254 bars, like other forms of this material, find applications in various industries where corrosion resistance, strength, and durability are crucial. Some of the common applications of SMO 254 bars include:

  1. Chemical Processing: SMO 254 bars are extensively used in chemical processing industries where exposure to corrosive chemicals is common. They are employed in equipment such as reactors, heat exchangers, and piping systems where resistance to corrosion from acids, alkalis, and halides is critical.
  2. Oil and Gas Industry: In offshore and onshore oil and gas production facilities, where exposure to harsh environments including seawater and corrosive chemicals is prevalent, SMO 254 bars are used in equipment such as valves, pumps, pipelines, and offshore platforms to ensure prolonged service life and reliability.
  3. Pulp and Paper Industry: SMO 254 bars find application in the pulp and paper industry, particularly in the production of bleaching equipment and chemical recovery systems. These bars can withstand the corrosive chemicals and high temperatures involved in the bleaching process and other stages of paper production.
  4. Seawater Handling Equipment: Due to its excellent resistance to chloride-induced stress corrosion cracking (SCC) and pitting corrosion, SMO 254 bars are used in the construction of seawater handling equipment such as seawater intake systems, seawater cooling systems for power plants, and marine components.
  5. Food Processing: In food processing industries where corrosion resistance and hygiene are paramount, SMO 254 bars are used in equipment such as tanks, vessels, and piping systems for handling acidic or saline food products.
  6. Pharmaceutical Industry: SMO 254 bars find applications in pharmaceutical manufacturing processes, especially in environments where corrosion from acids, alkalis, or halides could compromise product quality or equipment integrity.
  7. Heat Exchangers and Condensers: SMO 254 bars are employed in the construction of heat exchangers and condensers used in various industries, including power generation, chemical processing, and HVAC systems, where resistance to corrosion and high temperatures is essential.

Overall, SMO 254 bars are favored in industries where corrosion resistance, strength, and reliability are paramount, making them suitable for a wide range of demanding applications.

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 Round Bar

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

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

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

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

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