Stainless Steel Duplex Flats from Salem Stainless Steel Suppliers Pvt. Ltd. combine austenitic and ferritic microstructures for exceptional strength and corrosion resistance. As your Chennai source, we stock popular grades like SS Duplex flats perfect for demanding structural and corrosive environments.
Characterized by a “two-phase” microstructure, Duplex stainless steel is engineered to outperform standard grades in the most hostile environments. The secret behind stainless steel Duplex flats lies in their unique balanced microstructure, consisting of approximately 50% austenite and 50% ferrite. This synergy creates a metal that is both highly ductile and exceptionally strong.
Chemical Properties of SS Duplex Flats:
| Element | Composition (%) |
|---|---|
| Carbon (C) | 0.030 max |
| Chromium (Cr) | 22.0 – 23.0 |
| Nickel (Ni) | 4.5 – 6.5 |
| Molybdenum (Mo) | 3.0 – 3.5 |
| Nitrogen (N) | 0.14 – 0.20 |
| Manganese (Mn) | 2.00 max |
| Silicon (Si) | 1.00 max |
| Phosphorus (P) | 0.030 max |
| Sulfur (S) | 0.020 max |
| Iron (Fe) | Balance |
Mechanical Properties of Stainless Steel Duplex Flats:
| Property | Value (min) |
|---|---|
| Tensile Strength | 620-655 MPa |
| Yield Strength (0.2% Proof) | 450 MPa |
| Elongation (% in 50mm) | 25% |
| Rockwell C Hardness (HRC) | 31 max |
| Brinell Hardness (HB) | 293 max |
Physical Properties of Duplex SS Flats:
| Property | Value Typical |
|---|---|
| Density | 7.80 – 7.805 g/cm³ |
| Elastic Modulus | 190 – 200 GPa |
| Thermal Expansion | 13.7 μm/m/°C |
| Thermal Conductivity | 19 W/m·K |
| Specific Heat (100°C) | 418 J/kg·K |
| Electrical Resistivity | 0.85 × 10⁻⁶ Ω·m |
Product Specifications:
| Property | Details |
|---|---|
| Product | Stainless Steel Duplex Flats |
| Shape | Rectangle |
| Length / Thickness | 8-10 ft / 5-8 mm |
| Min. Order Quantity | 200 Kgs |
Industrial Applications of Duplex Flats:
- Oil & Gas: Subsea flowlines, heat exchangers, and structural reinforcements.
- Chemical Processing: Pressure vessels, storage tanks, and reactors.
- Marine Engineering: Desalination plants, boat shafts, and coastal infrastructure.
- Pulp & Paper: Digesters and bleaching equipment.
- Bridges & Architecture: High-strength structural supports in highly corrosive coastal air.
Our stainless steel Duplex flats are available in a wide range of custom widths and thicknesses, processed with state-of-the-art leveling and shearing technology to ensure absolute precision. Don’t settle for standard when you can have the strength of Duplex. Contact our technical sales team today to discuss your project requirements and get a competitive quote on SS Duplex flats.
