Duplex Stainless Steel – UNS S31803 / UNS S32205

Duplex Steel also known as Duplex 2205 Stainless Steel is a two-phase, ferritic and austenitic steel with 22% chromium (22cr Duplex) 3% molybdenum, 5 to 6% nickel alloyed stainless steel also known as x2crnimon22-5-3 used extensively in applications that require good corrosion resistance & strength. Heat treatment of Duplex SS 2205 is solution treatment (annealing), between 1020 – 1100°C, followed by rapid cooling. 22 Cr Duplex Stainless Steel cannot be hardened by heat treatment. They can however be work hardened.

1.4462 Stainless Steel Equivalent – 1.4462 | 22Cr Duplex | UNS S31803 (F51) | UNS S32205 (F60) | Alloy 2205 | Sandvik – SAF 2205 | Duplex 2205 | x2crnimon22-5-3 | FALC223 | URANUS 45N (UR 45N) | RA2205 | Cronifer® 2205 LCN.

SAF 2205 is Duplex (Austenitic-Ferritic) Stainless Steel characterized by –

• High resistance to stress corrosion cracking (SCC) in chloride-bearing environments.
• High resistance to stress corrosion cracking (SCC) in environments containing hydrogen sulfide.
• High resistance to general corrosion, pitting, and crevice corrosion.
• High resistance to erosion corrosion and corrosion fatigue.
• High mechanical strength – roughly twice the proof strength of austenitic stainless steel.
• Physical properties that offer design advantages.
• Good weldability.

Duplex Pipe

• Duplex Seamless Pipe
• Duplex Welded Pipe
• Duplex Round Pipe
• Duplex Square Pipe
• Duplex Rectangular Pipe
• Duplex ERW Pipe
• Duplex EFW Pipe

Duplex Tube Fittings

• Duplex Union Tube Fittings
• Duplex Elbow Tube Fittings
• Duplex Reducer Tube Fittings
• Duplex Tee Tube Fittings
• Duplex Adapter Tube Fittings
• Duplex Front Ferrule Tube Fittings
• Duplex Cap Tube Fittings

Duplex Fasteners

• Duplex Bolts Fasteners
• Duplex Nuts Fasteners
• Duplex Screws Fasteners
• Duplex Washers Fasteners
• Duplex Stud Bolts Fasteners
• Duplex Din Bolts
• 1.4462 Duplex Fasteners

Duplex Tube

• Duplex Seamless Tube
• Duplex Welded Tube
• Duplex Round Tube
• Duplex Square Tube
• Duplex Rectangular Tube
• Duplex ERW Tube
• Duplex EFW Tube

Duplex Pipe Fittings

• Duplex Stub Ends Pipe Fittings
• Duplex Tee Pipe Fittings
• Duplex Cross Pipe Fittings
• Duplex Reducer Pipe Fittings
• Duplex Concentric Reducer
• Duplex Eccentric Reducer
• Duplex 3D / 5D Elbow

Duplex Sheet Plate

• Duplex Diamond Plate
• Duplex Chequered Plate
• Duplex Hot Rolled Plates
• Duplex Shim Sheet
• Duplex Thin Sheet
• Duplex Mirror Finish Sheet
• Duplex Polished Sheet

Super Duplex Pipe

• Super Duplex Seamless Pipe
• Super Duplex Welded Pipe
• Super Duplex Round Pipe
• Super Duplex Square Pipe
• Super Duplex Rectangular Pipe
• Super Duplex ERW Pipe
• Super Duplex EFW Pipe

Super Duplex Tube Fittings

• Super Duplex Union Tube Fittings
• Super Duplex Elbow Tube Fittings
• Super Duplex Reducer Tube Fittings
• Super Duplex Tee Tube Fittings
• Super Duplex Adapter Tube Fittings
• Super Duplex Front Ferrule
• Super Duplex Cap Tube Fittings

Super Duplex Fasteners

• Super Duplex Bolts Fasteners
• Super Duplex Nuts Fasteners
• Super Duplex Screws Fasteners
• Super Duplex Washers Fasteners
• Super Duplex Stud Bolts Fasteners
• Super Duplex Din Bolts
• 1.4410 Super Duplex Fasteners

Super Duplex Tube

• Super Duplex Seamless Tube
• Super Duplex Welded Tube
• Super Duplex Round Tube
• Super Duplex Square Tube
• Super Duplex Rectangular Tube
• Super Duplex ERW Tube
• Super Duplex EFW Tube

Super Duplex Pipe Fittings

• Super Duplex Stub Ends
• Super Duplex Tee Pipe Fittings
• Super Duplex Cross Pipe Fittings
• Super Duplex Reducer Pipe Fittings
• Super Duplex Concentric Reducer
• Super Duplex Eccentric Reducer
• Super Duplex 3D / 5D Elbow

Super Duplex Sheet Plate

• Super Duplex Diamond Plate
• Super Duplex Chequered Plate
• Super Duplex Hot Rolled Plates
• Super Duplex Shim Sheet
• Super Duplex Thin Sheet
• Super Duplex Mirror Finish Sheet
• Super Duplex Polished Sheet