UNS S32615 plate is an austenitic stainless steel that is of high quality and exhibits high corrosion resistance in sulfuric acid, hydrochloric acid, and other types of aggressive chemical media. Its composition, which consists of high silicon and copper, increases its resistance to corrosion in a very corrosive process environment. Produced in full compliance with the UNS S32615 material specification, these plates are widely used across chemical and petrochemical industries and are available in a broad range of thicknesses and sizes to meet diverse engineering requirements. All products conform to ASTM A240 and ASME SA-240, ensuring consistent quality and performance in high-pressure and corrosive service applications.
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 Plate 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 Plate 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 Plate 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 Plate – Heat Treatment
Solution Annealing: Heat to 1050–1150°C followed by rapid quenching in water. This restores optimal corrosion resistance and relieves fabrication stresses in plate products.
UNS S32615 Plate 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 Plate 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 Plate Pitting Resistance
| Property | Value |
|---|---|
| PREN (Pitting Resistance Equiv.) | 21 |
| Max Temperature (Corrosion) | 410 °C |
| Max Temperature (Mechanical) | 990 °C |
UNS S32615 Plate Applications
Chemical Processing
Used in the fabrication of pressure vessels, reactors, and storage tanks designed for acid service environments.
Sulfuric Acid Industry
Applied in the construction of absorber towers, acid storage vessels, and reaction chambers in sulfuric acid plants.
Pulp & Paper Industry
Suitable for digesters, bleach towers, and acid-resistant structural liners throughout pulp and paper production.
Petrochemical Industry
Used as vessel and reactor plates in high-corrosion refinery and chemical processing environments.
Pharmaceutical Industry
Ideal for corrosion-resistant plates used in the fabrication of pharmaceutical processing vessels.
Waste Treatment
Applied as tank and vessel lining plates for containment of aggressive chemical effluents.
Fertilizer Plants
Used in vessels handling phosphoric acid, nitric acid, and mixed acid streams in fertilizer manufacturing.
Marine & Offshore
Employed as structural plates for chemical tankers and offshore equipment in corrosive service.
Mining Industry
Applied in lined tanks and vessels used in hydrometallurgical acid leach circuits.
Food Processing
Used in equipment plates handling acidic cleaning agents and process chemicals in food production facilities.
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