What Are Duplex Steel Sheets, Plates and Coils?

Duplex steel sheets, plates and coils consist of an alloy of austenite and ferrite that provides unique properties when machined. Machinability may present difficulty due to high strength/toughness ratio; specific tools and techniques often must be utilized when efficiently processing this metal.

One of the most notable features of duplex steel is its exceptional corrosion resistance. Even under harsh environments containing chloride ions, its durability withstands unsparingly, making it suitable for marine and chemical industry applications and helping prolong structures' and equipment's lifetimes while cutting maintenance costs significantly.

Duplex Steel Sheet

Duplex steel's welding properties make it one of its key attributes, with numerous techniques including shielded metal arc welding, gas tungsten arc welding and flux-cored arc welding all being applicable for its production. Furthermore, proper preheating and post-weld heat treatments must take place post-weld to maintain desired properties without sensitization and cracking issues developing post-weld.

Duplex steel sheets, plates and coils find wide applications across industries. Their diverse use includes offshore oil and gas platforms, desalination plants, chemical processing equipment as well as pulp and paper production - such industries often benefiting from its combination of strength, corrosion resistance and weldability which makes these versatile metal products highly advantageous.

Duplex steel sheets, plates and coils find applications across many industries. Their structural qualities make them essential in bridge, building and infrastructure projects as well as manufacturing pressure vessels, heat exchangers, storage tanks due to their reliability.

Duplex steel plays an indispensable role in automotive engineering, where its high strength and corrosion resistance makes it ideal for components requiring high strength such as exhaust systems or suspension components, in addition to finding applications in aerospace engineering when fabricating aircraft components subjected to harsh environments.

Energy sectors utilize duplex steel extensively in the creation of pipelines to transport fluids and gases that contain corrosion-causing elements, with its resistance to stress corrosion cracking making it an excellent choice. Furthermore, renewable energy projects utilizing it include wind turbines and solar panel frameworks due to its durability under environmental stress conditions.

Apple Steels is a reputable manufacturer and supplier of duplex steel sheets, plates, and coils in Mumbai, India. Specializing in high-quality duplex steel products, we address to a wide range of industrial needs, offering comprehensive solutions for machining, corrosion resistance, and weldability requirements. With a commitment to customer satisfaction, we provide reliable and efficient materials for various applications across diverse industries.

Manufacturing Process Of Duplex Steel Sheets, Plates, Coils

Melting and Casting

Melting and Casting

Steel and alloying metals are loaded into an electric arc furnace. Once in the furnace, the metal is heated to a specific temperature above its melting point, usually in excess of 2800°F.

Forming

Forming

Most cast steel is formed by hot rolling—the slab, bloom, or billet is heated and passed through large rollers, stretching out the steel into a longer, thinner form.

Heat Treatment

Heat Treatment

Heat treatment strengthens rolled steel by recrystallizing the deformed microstructure. Most steel is heat treated by annealing.

Cutting or Machining

Cutting or Machining

Steel is cut to a specified shape and size. The steel can be sheared with circular knives, sawed with high-speed blades, or blanked with punches.

finishing

Finishing

Steels can be made with a wide variety of surface finishes. The chosen surface finish is not purely aesthetic. The type of finish is determined by the intended application.

Specification Of Duplex Steel Sheets, Plates, Coils

Specifications ASTM A240 / ASME SA240, BS EN 10088-2, en 10028-7, IS 6911
Dimensions MSRR, AMS, BS, JIS, AISI, ASTM, GB, DIN, EN, etc
Size Range Cold Rolled : 0.5-6.4 mm
Hot Rolled : 3.0–10.0 mm
Width 1000mm, 1219mm, 1500mm, 1800mm, 2000mm, 2500mm, 3000mm, 3500mm, etc
Length 2000mm, 2440mm, 3000mm, 5800mm, 6000mm, etc
Thickness 0.3 mm to 120 mm
International Standard of Sheets ASTM A480
ASTM A959
ASME IID
EN ISO 9445
EN ISO 18286
EN 10051
EN 10088-1
ISO 15510
Tolerances (width / thickness EN 10258/ DIN 59381
EN 10151
EN 10088
Finish 2B, 2D, BA NO (8), Cold rolled sheet (CR), Hot rolled plate (HR), SATIN (Met with Plastic Coated), No.1 finish hot rolled, 1D, 2B, No.4, BA, 8K, satin, mirror etc.
Hardness Half Hard, Soft, Hard, Quarter Hard, Spring Hard
Form Sheet, Plain Sheet, Flat Shim, Flat Sheet, Shim Sheet, Rolling Sheet, soft annealed, descaled, sheared, annealed
Value Added Service Cladding, Heat Treatment, Annealed, Pickling, Polish, Rolling, Cutting, Bending, Forging, Minor Fabrication Etc.
Profiling Plasma Plate Cutting
Laser Plate Cutting
Oxy-propane Flame Cutting

Types Of Duplex Steel Sheets, Plates, Coils

Sheet

Sheet

Plates

Plates

Coils

Coils

Perforated Sheet

Perforated Sheet

Chequered Plate

Chequered Plate

Shim

Shim

Other Types Of Duplex Steel Sheets, Plates, Coils

  • Duplex Steel Checker Plate
  • Duplex Steel Foils
  • Duplex Steel Chequered Plate
  • Duplex Steel Slitting Coil
  • DSS Cold Rolled Sheets
  • Duplex Steel HR Sheets
  • Duplex Steel Sheets Cut To Size
  • Thin Duplex Steel Sheets
  • Duplex Steel Coil
  • Duplex Steel HR Strip
  • 3mm Duplex Steel Coil
  • Duplex Steel Strip

Duplex Steel Sheets, Plates, Coils Technical Information

Duplex Steel Sheets, Plates, Coils Industrial Application

Electrical Industry

Automotive Industry

Construction Industry

Defence Industry

Pharmaceutical Industry

Petroleum Industry

Petrochemical Industry

Milk & Dairy Industry

Export & Supply Destination of Duplex Steel Sheets, Plates, Coils

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

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

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

Antigua and Barbuda, Bahamas, Barbados, Belize, Canada, Costa Rica, Cuba, Dominica, Dominican Republic, El Salvador, Grenada, Guatemala, Haiti, Honduras, Jamaica, Mexico, Nicaragua, Panama, Saint Lucia, Saint Vincent and the Grenadines, Trinidad and Tobago, United States of America, Argentina, Bolivia, Brazil, Chile, Colombia, Ecuador, Guyana, Paraguay, Peru, Suriname, Uruguay, Venezuela.