Duplex stainless steel sheets are a type of stainless steel alloy that offer superior resistance to corrosion, making them ideal for use in harsh environments such as chemical plants and offshore oil rigs. These sheets have a two-phase microstructure that combines the benefits of ferritic and austenitic stainless steels. This unique structure gives them excellent strength, toughness, and weldability.
At Om Steel, we offer a variety of duplex stainless steel sheet grades, including S31803, S32205, S32750, and S32760, each with its own set of mechanical properties and corrosion resistance. Our sheets are available in a range of sizes and thicknesses to meet your specific needs.
In addition to their resistance to corrosion, duplex stainless steel sheets also offer high strength and durability, making them ideal for use in heavy-duty applications. Whether you need sheets for chemical processing, marine engineering, or other industrial applications, our duplex stainless steel sheets are a reliable and cost-effective choice.
Characteristics of Duplex Stainless Steel
Duplex stainless steel has several unique characteristics that make it an attractive material for various applications. Some of these characteristics include:
Corrosion Resistance
Duplex stainless steel exhibits excellent corrosion resistance in a wide range of environments, including seawater, acidic and alkaline solutions, and chloride-containing media. This property makes it suitable for use in offshore oil and gas platforms, chemical processing plants, and desalination facilities.
High Strength
Duplex stainless steel has higher strength than austenitic stainless steel due to its two-phase microstructure. This property makes it ideal for use in structural components that require high strength and toughness.
Good Ductility
Duplex stainless steel exhibits good ductility at both ambient and low temperatures. This property makes it suitable for use in cryogenic applications where materials must withstand extremely low temperatures without becoming brittle or cracking.
Weldability
Duplex stainless steel is weldable using conventional welding methods such as gas tungsten arc welding (GTAW), gas metal arc welding (GMAW), and shielded metal arc welding (SMAW). However, the presence of ferrite can affect the quality of the welds if not properly controlled.
Duplex Stainless Steel Sheet
Specification
| Item | Duplex Sheet (Hot rolled,cold rolled) |
|---|---|
| Standard | ASTM A240,ASTM A167,EN 10088-2-2005,GB/T3280-2007, etc |
| Material | 304, 316, 321, 317L, 310 , 347, 904L.,Duplex 2205, Super Duplex 2507 |
| Surface | the surface and finish of stainless steel sheet:2B,2D,BA,NO.1,NO.4,NO.8,8K,mirror,checkered,embossed,hair line,sandblast,Brush,etching,etc |
| Thickness | 0.01-200mm |
| Width | 1000mm,1219mm,1500mm,1800mm,2000mm,2500mm,3000mm,3500mm,etc |
| Length | 2000mm,2440mm,3000mm,5800mm,6000mm,etc |
| Package | Standard export package,suit for all kinds of transport,or as required. |
Duplex Stainless Steel Sheet
Weights
| Thickness(inches) | Sheet Weight per Unit Area | Density |
|---|---|---|
| 3/16 | 0.06000 lbs/in² 42.184176 kg/m² | 0.315 lbs/in³ 8.72 g/cm³ |
| 1/4 | 0.08 lbs/in² 56.245568 kg/m² | |
| 3/8 | 0.121 lbs/in² 85.0714216 kg/m² | |
| 1/2 | 0.161 lbs/in² 113.1942056 kg/m² | |
| 5/8 | 0.196 lbs/in² 137.8016416 kg/m² | |
| 3/4 | 0.235 lbs/in² 165.221356 kg/m² | |
| 7/8 | 0.274 lbs/in² 192.6410704 kg/m² | |
| 1 | 0.313 lbs/in² 220.0607848 kg/m² | |
| 1 1/4 | 0.391 lbs/in² 274.9002136 kg/m² | |
| 1 1/2 | 0.47 lbs/in² 330.442712 kg/m² | |
| 1 3/4 | 0.549 lbs/in² 385.9852104 kg/m² | |
| 2 | 0.627 lbs/in² 440.8246392 kg/m² | |
| 2 1/4 | 0.705 lbs/in² 495.664068 kg/m² | |
| 2 1/2 | 0.784 lbs/in² 551.2065664 kg/m² | |
| 2 3/4 | 0.862 lbs/in² 606.0459952 kg/m² | |
| 3 | 0.941 lbs/in² 661.5884936 kg/m² |
Duplex Stainless Steel Sheet
Sizes
| Size (in inches) | Size (in mm) |
|---|---|
| .125″ | 3.18 |
| .134″ | 3.4 |
| .156″ | 3.96 |
| .187″ | 4.75 |
| .250″ | 6.35 |
| .312″ | 7.92 |
| .375″ | 9.53 |
| .500″ | 12.7 |
| .625″ | 15.9 |
| .750″ | 19.1 |
| .875″ | 22.2 |
| 1″ | 25.4 |
| 1.125″ | 28.6 |
| 1.250″ | 31.8 |
| 1.500″ | 38.1 |
| 1.750″ | 44.5 |
| 2″ | 50.8 |
| 2.500″ | 63.5 |
| 3″ | 76.2 |
Duplex Stainless Steel Sheet
Chemical Composition
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N | Fe |
|---|---|---|---|---|---|---|---|---|---|---|
| S32205 | 0.030 max | 2.00 max | 1.00 max | 0.030 max | 0.020 max | 22.0 – 23.0 | 3.0 – 3.5 | 4.50 – 6.50 | 0.14 – 0.20 | 63.72 min |
| S32205 | 0.030 max | 2.00 max | 1.00 max | 0.030 max | 0.020 max | 21.0 – 23.0 | 2.50 – 3.50 | 4.50 – 6.50 | 0.8 – 0.20 | 63.54 min |
Duplex Stainless Steel Sheet
Mechanical Properties
| Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
|---|---|---|---|---|
| 7.8 g/cm3 | 1350 °C (2460 °F) | Psi – 80000, Mpa – 550 | Psi – 116000, Mpa – 800 | 15 % |
Application Industry
Serving Diverse Sectors with Precision & Performance
Om Steel supplies premium steel and alloy products to a wide range of industries, ensuring strength, durability, and performance in every application. From construction, oil & gas, and automotive to power plants, shipbuilding, and chemical processing — our materials meet the demands of critical operations. Trusted by industry leaders, we deliver solutions that stand up to the toughest challenges.
Defence & Aerospace
Oil/Gas
Speciality Valves & Vacuum
Precision Components
Defence & Aerospace
Oil/Gas
Speciality Valves & Vacuum
Precision Components
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