Ragavendra Engineering
Puzhal, Chennai, Tamil Nadu
GST No. 33ALFPG8589C1Z2
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Our specialty alloy division at Ragavendra Engineering offers a full range of Duplex and Super Duplex stainless steels in sheet, plate, and round bar form. We have extensive in-house processing capabilities which make us an ideal one stop shop for all your requirements.
These grades are designed to offer a super combination of heat resistance, high temperature corrosion resistance, toughness and strength, and are used in the world’s most technically demanding industries.
Stainless Steel Super Duplex and Duplex Grades| Grade | UNS | ASTM/ASME | Werkstoff |
|---|---|---|---|
| Duplex | S31803 | A240 / F51 | 1.4462 |
| Super Duplex | S32750 | A240 / F55 | 1.4410 |
| Super Duplex | S32760 | A240 / F53 | 1.4501 |
| Lean Duplex | S32304 | A240 | 1.4362 |
| 6 Moly | S31254 | A240 / F44 | 1.4547 |
| Grade | Sheet (mm) | Plate (mm) | Bar (mm) [Diameter] |
|---|---|---|---|
| UNS S31803 | 1.50 – 3.00 | 5.00 – 100.00 | 76.20 – 457.20 |
| UNS S32304 | 2.00 | 5.00 – 50.00 | - |
| UNS S32750 | 3.00 | 5.00 – 50.00 | 12.70 – 304.80 |
| UNS S32760 | - | 5.00 – 50.00 | 12.70 – 304.80 |
Product Details:
| Material | Super Duplex |
| Steel Grade | S32760 |
| Shape | Square & Rectangle |
| Finishing | Bright |
| Size | Any Sizes |
| Brand | JSW |
Ragavendra Engineering holds an extensive stock of Super Duplex stainless steel plate and is one of the few companies to keep both S32750 (1.4410) and S32760 (1.4501) material grades. All stock plate is manufactured by Western European steel makers, third party inspected, and certified in accordance with EN 10204 3.2. All plates are also certified in accordance with NORSOK MDS D55 and any plates up to an including 35 mm thick will be to NORSOK MDS D55 Revision 4.
Plates are stocked as large format (up to 12,000 mm long and 2,500 mm wide) which is designed to minimise fabrication costs for our customers by reducing the amount of welding required. The large format also gives us the opportunity to make the best possible use of each plate when “nesting” the shapes required by our customers. Given the specialised nature of this type of steel it is no great surprise that the majority of our sales are made in cut and processed form.
For more details of our stock range in Super Duplex plates, click on the following links:
Product Details:
| Minimum Order Quantity | 1 Kilogram |
| Condition | New |
| Material Grade | SS316,SS316L,SS304 |
| Brand | Villares |
| Shape | Round |
| Finishing | Bright |
| Color | Grey |
| Application | Automobile Industry |
| Surface Finish | Brushed,Mill Finished,Finished Polished |
Product Details:
| Minimum Order Quantity | 1 Kilogram |
| Shape | Square & Rectangle |
| Size | 1 MM TO 10MM |
| Brand | Villares |
| Usage/Application | Manufacturing |
| Material Grade | S32760 |
| Thickness | 1-2 mm |
| Length | 3m,6m |
| Type | SHEETS |
| Material | SUPER DUPLEX |
Product Details:
| Minimum Order Quantity | 1 Kilogram |
| Pipe Fluid | Chemical, Steam, Gas |
| Brand | VILLARAS |
| Diameter | 1/2" to 6" |
| Unit Pipe Length | 3 meter |
| Thickness(mm) | 2MM TO 50MM |
| Unit Length (meters) | 6 m, 3 m |
| Size (inch) | 2, 1/2, 3/4, 3, 1 |
| Shape | Round |
| Surface Finish | Finished Polished, Mill Finished |
| Material Grade | SUPER DUPLEX 32750 |
| Type | Welded, Seamless |
Additional Information:
Product Details:
| Minimum Order Quantity | 1 Kg |
| Brand | Villares |
| Size | All Sizes |
| Shape | Round |
| Diameter | 10 to 150mm Diameter |
| Color | Grey |
| I Deal In | New Only |
| Condition | New |
| Application | Oil & Gas Industry, Automobile Industry |
| Grey | Blue |
Product Details:
| Minimum Order Quantity | 50 Piece |
| Finish | Bright |
| Grade | S32760 |
| Material | Stainless Steel |
| Technique | Cold Rolled |
| Size | 1250 x 2500 |
| Type | Plate |
| Steel Grade | SS316 L |
| Color | Blue |
| Thickness | 2-3 mm |
| Surface Treatment | Coated |
Product Details:
| Minimum Order Quantity | 05 Kg |
| Material Grade | 32760 |
| Material | Super Duplex |
| Brand | Villares |
| Usage/Application | Manufacturing |
| Thickness | 1-2 mm, 3-4 mm, 0-1 mm, 2-3 mm, 4-5 mm |
| Color | Green |
| Finishing | Bright |
Product Details:
| Minimum Order Quantity | 1 Kg |
| Single Piece Length | 3 meter |
| Usage/Application | Industrial |
| Brand | JSW |
| Thickness/Diameter | 0-1 inch, 1-2 inch, 2-3 inch |
| Delivery Details | 0-2 days |
| Shape | Square & Rectangle |
| Size | 1250 x 2500 |
| Surface Finish | Bright |
| Application | Manufacturing |
Our stock of Super Duplex 32760 can be supplied in sheet, plate, or bar forms, cut to specific requirements and comes with the Ragavendra engineering quality certification.
The following are the properties of 32760 super duplex:
Components in offshore, waste water, sea water desalination and chemical plants with aggressive chloride-containing media e.g. heat exchangers, separator parts, compressor and pump components, turbine blades.
Chemical Composition (average %)
| C | Si | Mn | Cr | Mo | Ni | W | Cu | N | PREN |
|---|---|---|---|---|---|---|---|---|---|
| 0.020 | 0.25 | 0.55 | 25.20 | 3.70 | 7.00 | 0.65 | 0.60 | 0.22 | Min. 40 |
UNS S32760
Hot FormingForging1280 to 1000°C (2336-1832°F)
Air cooling
1100°C (2012°F)
Water , air (thickness below 2mm)
1100°C (2012°F)
Water , air (thickness below 2mm)
Ferrite + Austenite
WeldingWeldability of super duplex 32760 is good. The welding procedures are similar to those applied for conventional duplex grades. Welding consumables for different welding methods are available.
MachiningThe machine ability of super duplex 32760 is superior to comparable super duplex grades due to its optimised inclusion characteristic. Further details are available on request.
Product Details:
| Minimum Order Quantity | 1 Kg |
| Shape | Round |
| Steel Type | Stainless Steel |
| Single Piece Lengh | 6 meter |
| Unit Length | 6 m |
| Brand | LAXCON |
| Steel Grade | Duplex 2205 |
| Surface Finish | Bright |
| Test Certificate | Nabl |
| Material | Stainless Steel |
| Size | 10-20 mm |
| Single Piece Length | 3 meter, 6 meter |
| Finish | Polished |
| Thickness/Diameter | 2-3 inch, 1-2 inch, 0-1 inch |
| Usage/Application | Manufacturing |
| Application | Manufacturing |
Ragavendra Engineering are a stockholder of the 32750 duplex alloys in sheet, plate, and round bar with the added capability of cutting processes to meet requirements across a number of industries.
The following are the properties of 32750 super duplex:
Components in offshore, waste water, sea water desalination and chemical plants with aggressive chloride-containing media e.g. heat exchangers, compressor and pump components.
Chemical Composition (average %)
| C | Si | Mn | Cr | Mo | Ni | Cu | N | PREN |
|---|---|---|---|---|---|---|---|---|
| 0.020 | 0.25 | 0.55 | 25.80 | 3.40 | 7.00 | max. 0.50 | 0.30 | Min. 40 |
UNS S32750
Hot FormingForging1200 to 950°C / Air cooling
Heat TreatmentSolution annealing:1150 to 1000°C (2102-1832°F)
Air cooling
1100°C (2012°F)
Water , air (thickness below 2mm)
Ferrite + Austenite
WeldingWeldability of super duplex 32750 is good. The welding procedures are similar to those applied for conventional duplex grades. Welding consumables for different welding methods are available.
Condition: solution annealed
| Product | Size mm | 0.2% proof stress N/mm2 min. | Tensile strength N/mm2 min. | Elongation A5 L Q T | Impact strength (ISO-V) J min. L Q T |
|---|---|---|---|---|---|
| St, Sch | ≤ 160 | 500 | 795 | 25 - – - - | 100 - – - - |
| P | ≤ 75 | 252) 252) - - | 100 60 - - |
St = Bar ,
Sch = Forging,
P = Sheet or plate
L = Longitudinal, Q = Transverse, T = Tangential
1) < 3mm = A80mm specimen
The values for other products and dimensions shall be established by agreement.
Condition: solution annealed/quenched
| 0.2% yield strength N/mm² min. | Temperature | ||
|---|---|---|---|
| 100°C (212°F) | 150°C (302°F) | 200°C (392°F) | 250°C (482°F) |
| 450 | 420 | 400 | 380 |