Calico Metal Alloys LLP is a trusted supplier of Super Duplex Steel UNS S32750 Bars in India. With a commitment to excellence and reliability, we have established ourselves as a leading source for industrial-grade materials. Offering a comprehensive range of products, we cater to diverse needs across various sectors. Our dedication to quality assurance ensures that customers receive top-notch materials for their projects, making us a preferred choice in the industry.

What Are Super Duplex Steel UNS S32750 Bars?

Super Duplex Steel UNS S32750 Bars are high-strength corrosion-resistant bars made of duplex stainless steel alloy. Their excellent resistance to chloride stress corrosion cracking makes them well suited for harsh environments like offshore oil and gas production, chemical processing or marine engineering industries requiring superior corrosion resistance and strength properties. These bars boast exceptional mechanical properties.

Super Duplex Steel UNS S32750 Bars

Manufacturing Process Of Super Duplex S32750 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 Super Duplex Steel UNS S32750 Bars

Super Duplex Steel UNS S32750 bars offer numerous advantages due to their distinctive composition and properties, some of which include:

1. Corrosion Resistance: Super Duplex Steel UNS S32750 bars exhibit exceptional corrosion resistance in harsh environments like those containing chlorides, acids and seawater, helping extend component lifespan while decreasing maintenance costs and downtime costs.

2. High Strength: Super Duplex Steel UNS S32750 bars have superior strength compared to regular duplex stainless steels and austenitic stainless steels, making them suitable for demanding applications where structural integrity and reliability are top considerations.

3. Weldability: Super Duplex Steel UNS S32750 bars boast excellent weldability despite their higher alloy content, making fabrication simple while permitting complex structures and components to be built using various welding techniques.

4. Cost-Effective: Despite being a premium material, Super Duplex Steel UNS S32750 offers a cost-effective solution due to its long-term durability, reduced maintenance requirements, and extended service life compared to alternative materials.

5. Excellent Toughness: Super Duplex Steel UNS S32750 bars exhibit excellent toughness at both low temperatures, making them suitable for cryogenic applications where maintaining mechanical properties under extreme cold is required.

6. Versatility: Super Duplex Steel UNS S32750 bars have become indispensable components in various industries, from oil and gas exploration, chemical processing, marine engineering and desalination plants, among many others. Their adaptability lies in their combination of high strength, corrosion resistance and other beneficial qualities that enable these applications.

Overall, Super Duplex Steel UNS S32750 bars make an excellent choice for critical applications requiring performance, reliability, and longevity.

Applications of Super Duplex Steel UNS S32750 Bars:

Super Duplex Steel UNS S32750 bars, also referred to as SAF 2507, is an extremely corrosion-resistant material which finds many uses within different industries where resistance against harsh environments and strength are key attributes. Here are a few applications where this grade of Steel may come into use:

1. Oil and Gas Industry: Super Duplex Steel bars have become an indispensable element for use in offshore oil and gas platforms, subsea pipelines, equipment, valves, pumps, manifolds and connectors due to their excellent corrosion resistance in chloride environments and strong mechanical strength. They're often deployed as valves.

2. Chemical Processing: Super Duplex Steel bars are commonly utilized by industries engaged in producing chemicals as they have resistance against various corrosive chemicals and high temperatures, making them suitable for reactors, heat exchangers, piping systems and vessels in this context.

3. Marine Applications: Super Duplex Steel bars have many marine applications due to their resistance to seawater corrosion and harsh weather conditions, making them popular choices in shipbuilding, offshore structures and components for marine use.

4. Power Generation: Super Duplex Steel bars are used extensively in power plants that utilize fossil fuels or operate near coastlines due to their resistance against corrosion and erosion; specifically in components like turbines, heat exchangers and condensers.

5. Aerospace Industry: Super Duplex Steel bars may find use in components requiring high strength and corrosion resistance in aerospace applications; although their use here is less prevalent compared with other industries.

6. Food Processing: Super Duplex Steel bars are widely utilized within the food and beverage industry for applications involving acidic or chloride-filled environments, including storage tanks, processing vessels and piping systems.

These are only some examples of Super Duplex Steel UNS S32750 bars many applications in various fields and industries, where its unique combination of properties makes it suitable.

Super Duplex Steel S32750 Bars Specifications

Specifications ASTM A276, A479 / ASME SA276, SA479
Grade Super Duplex Steel UNS S32750 F53
Technique uns S32750 Cold Drawn, Hot Rolled, Forged Round Bar, Rod, Cold Rolled
Tolerance H8, H9, H10, H11, H12, H13K9, K10, K11, K12 or as per Clients’ Requirements
Finish Cold (bright) drawn, centreless ground, hot rolled, smooth turned, peeled, slit rolled edge, hot rolled annealed, Rough Turned, Bright, Polish, Grinding, Centreless Ground & Black
Round bar size Diameter: 3-~800mm
Hex Bar Size 2-100mm A/F
Flat Bar Size Thickness: 2 -100mm
Width: 10 to 500mm
Square Bar Size 4 to 100mm
Billet Size 1/2″ to 495mm Diameter
Channel Bar 80 x 40mm to 150 x 75mm section; 5.0 to 6.0mm thickness
Hollow Bar 32mm OD x 16mm ID to 250mm OD x 200mm ID
Angle Bar Size 3mm*20mm*20mm~12mm*100mm*100mm
Rectangles Size 33 x 30mm to 295 x 1066mm
Section 3.0 to 12.0mm thickness
Form Precision Ground Bar, Flat Bar, Square, Round, Half Round Bar, Rod, Rectangle, Hex (A/F), T-Bar, Channel Bar,Blocks, Round Rod, Threaded, Profiles, Billet, Ingot, I/H Bar, Forging, Rings, Hollow, Triangle etc.
Surface Cold Drawn, Bright, Sand Blasting Finished, Hot Rolled Pickled, Hairline, Polished

Types Of Super Duplex Stainless Steel S32750 Bars


Super Duplex Steel S32750 Square Bar


Super Duplex Steel S32750 Bright Bar


Super Duplex Steel S32750 Flat Bar


Super Duplex Steel S32750 Forged Bar


Super Duplex Steel S32750 Cold Drawn Round Bar


Super Duplex Steel S32750 Rod


Other Types Of Super Duplex Steel S32750 Bars

SDSS S32750 Bars Super Duplex Steel S32750 Hexagonal Bar
Super Duplex Steel S32750 Threaded Rod Super Duplex Steel S32750 Industrial Bars
Precision Ground Super Duplex Stainless S32750 Bars Super Duplex Steel F51 Round Bar
S32750 Super Duplex Stainless Steel Bars UNS S32750 Square Bar
F51 Super Duplex Stainless Steel Bars Super Duplex Stainless Steel F51 Rod
SDSS S32750 Hot Rolled Bar Super Duplex Steel S32750 Half-Round Bar
ASME SA276 Super Duplex Steel S32750 Precision Ground Bar ASTM A276 Super Duplex Steel S32750 Bars
Super Duplex Stainless Steel S32750 Rectangular Bar Super Duplex Steel S32750 Cold Finish Round Bar
Super Duplex Steel S32750 Polished Bar S32750 Super Duplex Steel Half-Round Bars

Super Duplex Steel UNS S32750 Bars Equivalent Grade

Super Duplex Steel UNS S32750 bars are highly corrosion-resistant materials with superior mechanical properties and offer greater strength compared to standard austenitic or duplex stainless steels. Common equivalent grades to UNS S32750 include SAF 2507, 1.4410 and F53. They're used across industries from oil & gas exploration & production through chemical processing to marine use due to their exceptional corrosion-resistance. With great weldability and formability qualities paired with excellent strength-corrosion ratio properties they make this material a top pick among demanding applications demanding high strength corrosion-resistance!

Super Duplex F53 1.4410 S32750

Chemical Composition of Super Duplex Steel UNS S32750 Bars

Super Duplex Steel UNS S32750 (also known as SAF 2507) exhibits a characteristic composition characterized by high levels of Cr (25%) for enhanced corrosion protection in demanding environments. Additionally, it contains approximately 7% nickel (Ni) and 4% molybdenum (Mo), contributing to its superior strength and durability. Furthermore, nitrogen (N) at 0.24-0.32% enriches mechanical properties as well as corrosion resistance of this composite material. An alloy may also include trace amounts of manganese (Mn), silicon (Si), and copper (Cu), typically below one percent each, in smaller proportions to improve its microstructure and increase resistance against chloride-induced stress corrosion cracking and pitting in various applications.

UNS Designation Type Composition, % B
C Mn P S Si Cr Ni N Mo Other Elements C
S32750 . . . 0.030 1.20 0.035 0.020 0.80 24.0/26.0 6.00/8.00 0.24/0.32 3.0/5.0 . . .

Mechanical Properties of Super Duplex Steel UNS S32750 Bars

Super Duplex Steel UNS S32750 bars often exhibit outstanding mechanical properties, with tensile strengths often exceeding 800 MPa (116,000 psi), and yield strengths surpassing 550 MPa (79,800 psi). These bars boast excellent ductility and toughness; typically exceeding 25% elongation values. Under pressure environments like offshore marine applications, chemical processing industries and oil and gas production facilities. Furthermore, their excellent impact resistance makes them suitable for use. Finally, their fatigue resistance and exceptional dimensional stability enable reliable performance under differing loads and conditions for critical structural components that bear them.

UNS Designation Type Tensile Strength(MPa) Proof Stress 0.2% (MPa) Elongation A5(%) Hardness Max (HB-HRB)
S32750 . . . 795 550 15 310-32*

Super Duplex F51 Bars Industrial Application

Electrical Industry


Automotive Industry


Construction Industry


Defence Industry


Pharmaceutical Industry


Petroleum Industry


Petrochemical Industry


Milk & Dairy Industry

Milk & Dairy

Export & Supply Destinations Of Super Duplex S32750 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.