Duplex Stainless Steel Sheet
Duplex Stainless Steel
Duplex Stainless Steel Sheet
Duplex stainless steel sheets represent a formidable stainless steel alloy known for their exceptional corrosion resistance, rendering them highly suitable for deployment in demanding environments such as chemical plants and offshore oil rigs. These sheets boast a distinctive two-phase microstructure that amalgamates the advantages of both ferritic and austenitic stainless steels. This unique structure equips them with excellent strength, toughness, and weldability.
At Ashapura Steel, our commitment extends to providing a diverse range of duplex stainless steel sheet grades, including S31803, S32205, S32750, and S32760, each characterized by distinct mechanical properties and corrosion resistance attributes. We offer these sheets in various sizes and thicknesses, ensuring they can be tailored to meet your precise requirements. Beyond their formidable corrosion resistance, duplex stainless steel sheets also deliver notable strength and durability, rendering them an ideal choice for heavy-duty applications.
Characteristics of Duplex Stainless Steel
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/in²42.184176 kg/m² | 0.315 lbs/in³8.72 g/cm³ |
| 1/4 | 0.08 lbs/in²56.245568 kg/m² | |
| 3/8 | 0.121 lbs/in²85.0714216 kg/m² | |
| 1/2 | 0.161 lbs/in²113.1942056 kg/m² | |
| 5/8 | 0.196 lbs/in²137.8016416 kg/m² | |
| 3/4 | 0.235 lbs/in²165.221356 kg/m² | |
| 7/8 | 0.274 lbs/in²192.6410704 kg/m² | |
| 1 | 0.313 lbs/in²220.0607848 kg/m² | |
| 1 1/4 | 0.391 lbs/in²274.9002136 kg/m² | |
| 1 1/2 | 0.47 lbs/in²330.442712 kg/m² | |
| 1 3/4 | 0.549 lbs/in²385.9852104 kg/m² | |
| 2 | 0.627 lbs/in²440.8246392 kg/m² | |
| 2 1/4 | 0.705 lbs/in²495.664068 kg/m² | |
| 2 1/2 | 0.784 lbs/in²551.2065664 kg/m² | |
| 2 3/4 | 0.862 lbs/in²606.0459952 kg/m² | |
| 3 | 0.941 lbs/in²661.5884936 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 % |
