Chemical Composition (Typical wt.%) Element Specification Carbon (C) ≤0.030 Chromium (Cr) 22.00-23.00 Nickel (Ni) 4.50-6.50 Molybdenum (Mo) 3.00-3.50 Nitrogen (N) 0.14-0.20 Manganese (Mn) ≤2.00 Iron (Fe) Balance

Mechanical Properties (Annealed Condition) Property Value Tensile Strength ≥620 MPa Yield Strength (0.2%) ≥450 MPa Elongation ≥25% Hardness ≤310 HB Density Approx. 7.8 g/cm³

Oil and gas pipelines Chemical processing equipment Pressure vessels Heat exchangers Marine equipment Offshore platforms Desalination plants Pulp and paper equipment

Chemical Composition (Typical wt.%) Element Specification Carbon (C) ≤0.030 Chromium (Cr) 22.00-23.00 Nickel (Ni) 4.50-6.50 Molybdenum (Mo) 3.00-3.50 Nitrogen (N) 0.14-0.20 Manganese (Mn) ≤2.00 Iron (Fe) Balance

Mechanical Properties (Annealed Condition) Property Value Tensile Strength ≥620 MPa Yield Strength (0.2%) ≥450 MPa Elongation ≥25% Hardness ≤310 HB Density Approx. 7.8 g/cm³

Oil and gas pipelines Chemical processing equipment Pressure vessels Heat exchangers Marine equipment Offshore platforms Desalination plants Pulp and paper equipment

2205/S32205 Stainless Steel Coil

Grade: 2205/UNS S32205/UNS S31803/W.Nr 1.4462

Hot rolled: 3mm-16mm

Cold Rolled: 0.3mm-3.0mm

Width: 1.0m/1.22m/1.5m/1.8m/2.0m/2.2m or as client’s requirement.

Standard: ASTM A240/A240M, JIS G4304, JISG 4305, EN 10088/3

Finish: 2B, 8K, HL, 240#, No.1, 1D

2205 duplex stainless steel is a widely used duplex stainless steel combining approximately equal proportions of austenitic and ferritic microstructures. It contains higher chromium and molybdenum than conventional austenitic grades, together with nitrogen strengthening, providing excellent corrosion resistance, high mechanical strength, and good resistance to stress corrosion cracking.

Compared with 316L stainless steel, 2205 offers significantly higher yield strength and superior resistance to chloride-induced corrosion. The duplex structure provides a balanced combination of toughness, weldability, and corrosion performance. It is especially suitable for applications exposed to seawater, chlorides, and aggressive chemical environments.

2205 is widely used in oil and gas, chemical processing, marine, and industrial applications where high strength and corrosion resistance are required. It provides an economical alternative to higher alloy stainless steels while maintaining excellent long-term reliability.

Chemical Composition (Typical wt.%)

Element	Specification
Carbon (C)	≤0.030
Chromium (Cr)	22.00-23.00
Nickel (Ni)	4.50-6.50
Molybdenum (Mo)	3.00-3.50
Nitrogen (N)	0.14-0.20
Manganese (Mn)	≤2.00
Iron (Fe)	Balance

Mechanical Properties (Annealed Condition)

Property	Value
Tensile Strength	≥620 MPa
Yield Strength (0.2%)	≥450 MPa
Elongation	≥25%
Hardness	≤310 HB
Density	Approx. 7.8 g/cm³

Oil and gas pipelines
Chemical processing equipment
Pressure vessels
Heat exchangers
Marine equipment
Offshore platforms
Desalination plants
Pulp and paper equipment

Introduction

Specification

Chemical Composition (Typical wt.%)

Element	Specification
Carbon (C)	≤0.030
Chromium (Cr)	22.00-23.00
Nickel (Ni)	4.50-6.50
Molybdenum (Mo)	3.00-3.50
Nitrogen (N)	0.14-0.20
Manganese (Mn)	≤2.00
Iron (Fe)	Balance