UNS S32615 sheet is designed to be used in applications that require resistance to extremely corrosive acids, especially sulfuric acid of different concentrations. It presents high silicon and copper alloying, which makes it easier to perform better in the chemical processing, acid treatment, and industrial lining applications. These sheets are very easy to weld and shape and retain their structural integrity even in extreme environments. UNS S32615 sheets come in hot-rolled and cold-rolled finishes and are internationally rated in terms of quality and are utilized in many industries, such as chemical, pharmaceutical, and industrial.
Duplex Steel S32615 Sheets & Plates Specifications
| Specification | Details |
|---|---|
| Standard | ASTM A240 / ASME SA240 |
| Width | 1000mm, 1219mm, 1500mm, 1800mm, 2000mm, 2500mm, 3000mm, 3500mm, etc |
| Thickness | 4 mm To 100 mm |
| Length | 2000mm, 2440mm, 3000mm, 5800mm, 6000mm, etc |
| Surface | 2B, 2D, BA, NO.1, NO.4, NO.8, 8K, mirror, checkered, embossed, hair line, sand blast, Brush, etching, etc |
| Form | Sheets, Plates, Coils, Slatting Coils, Perforated Coils |
| Finish | Hot rolled plate (HR), Cold rolled sheet (CR), 2B, 2D, BA NO(8), SATIN (Met with Plastic Coated) |
UNS S32615 Sheet Chemical Composition
| Element | Symbol | Min (%) | Max (%) |
|---|---|---|---|
| Carbon | C | — | 0.070 |
| Silicon | Si | 4.800 | 6.000 |
| Manganese | Mn | — | 2.000 |
| Phosphorus | P | — | 0.045 |
| Sulfur | S | — | 0.030 |
| Chromium | Cr | 16.500 | 19.500 |
| Nickel | Ni | 19.000 | 22.000 |
| Copper | Cu | 1.500 | 2.500 |
| Molybdenum | Mo | 0.300 | 1.500 |
| Iron | Fe | Balance | — |
UNS S32615 Sheet Mechanical Properties
| Property | Value | Unit |
|---|---|---|
| Tensile Strength (UTS) | 550 min / 620 typ | MPa |
| Yield Strength (0.2% Proof) | 220 min / 250 typ | MPa |
| Elongation at Break | 25 min / 28 typ | % |
| Reduction in Area | 46 | % |
| Brinell Hardness | 170 | HB |
| Elastic (Young’s) Modulus | 190 | GPa |
| Shear Modulus | 75 | GPa |
| Poisson’s Ratio | 0.28 | — |
| Fatigue Strength | 180 | MPa |
| Shear Strength | 400 | MPa |
UNS S32615 Sheet Physical Properties
| Property | Value | Unit |
|---|---|---|
| Density | 7.6 | g/cm³ |
| Melting Point (Solidus) | 1310 | °C |
| Melting Point (Liquidus) | 1350 | °C |
| Specific Heat Capacity | 500 | J/kg·K |
| Thermal Expansion Coefficient | 15 | μm/m·K |
| Thermal Conductivity | 11–21 | W/m·K |
| Electrical Resistivity | 0.55 | Ohm·mm²/m |
| Latent Heat of Fusion | 370 | J/g |
UNS S32615 Sheet – Heat Treatment
Solution Annealing: Heat to 1050–1150°C followed by rapid water quenching to maintain corrosion resistance properties across hot-rolled and cold-rolled sheet products.
UNS S32615 Sheet Equivalent / Cross Reference Standards
| Standard | Designation | Country |
|---|---|---|
| UNS | S32615 | USA |
| ASTM | A240 S32615 | USA |
| ASTM | A959 S32615 | USA |
| ASME | SA-240 UNS S32615 | USA |
UNS S32615 Sheet Applicable Standards
| Standard | Description |
|---|---|
| ASTM A240 | Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels |
| ASME SA-240 | ASME equivalent of ASTM A240 |
| ASTM A480 | General Requirements for Flat-Rolled Stainless and Heat-Resisting Steel Plate, Sheet, and Strip |
UNS S32615 Sheet Pitting Resistance
| Property | Value |
|---|---|
| PREN (Pitting Resistance Equiv.) | 21 |
| Max Temperature (Corrosion) | 410 °C |
| Max Temperature (Mechanical) | 990 °C |
UNS S32615 Sheet Applications
Chemical Processing
Used as sheet lining for tanks, vessels, and troughs in acid service environments requiring high corrosion resistance.
Sulfuric Acid Plants
Applied as acid-resistant sheet for absorber liners and containment structures in sulfuric acid production.
Pulp & Paper Industry
Suitable for sheet components used in bleach plant equipment and acid storage liners.
Pharmaceutical Industry
Used in sheet fabrication for corrosion-resistant trays, covers, and enclosures in pharmaceutical facilities.
Metal Finishing
Applied as lining sheets for pickling tanks, acid baths, and electroplating lines in surface treatment operations.
Food & Beverage Industry
Used as acid-resistant sheet for processing surfaces and cleaning system panels in food production.
Semiconductor Industry
Applied as sheet material for chemical handling equipment and acid wash systems in semiconductor fabrication.
Waste Treatment Facilities
Used as protective sheet lining for aggressive effluent tanks and chemical containment pits.
Mining Industry
Applied in acid leach tank liners and hydrometallurgical plant equipment fabrication.
Laboratory & Research
Used in sheet fabrication for chemical fume hoods, workbenches, and corrosion-resistant vessels.
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