Duplex 2205 Flat Bars
Rose Metal Industries is a renowned manufacturer, stockist and exporter of premium-grade Duplex 2205 Flat Bars, supplying to key industrial regions of India — including Tamilnadu, Andhra Pradesh, Karnataka, Telangana, Puducherry (Pondicherry) and the Andaman & Nicobar Islands — as well as to global clients worldwide. Duplex 2205 (UNS S32205 / EN 1.4462) is a duplex stainless steel grade combining excellent mechanical strength with outstanding resistance to pitting, crevice corrosion and stress corrosion cracking in chloride-rich and aggressive environments.
Our Duplex 2205 flat bars are manufactured under strict quality control, using high-grade raw material and precision rolling / cutting technology. These flat bars provide superior strength compared to conventional austenitic stainless steels, making them ideal for structural components, marine applications, industrial fabrication, and process equipment. The duplex microstructure ensures long-term durability even under seawater exposure — making them suitable for coastal and port installations in Chennai, Visakhapatnam, Mangalore, Port Blair, Puducherry and other coastal zones
Rose Metal Industries maintains a robust stock of Duplex 2205 flat bars in various thicknesses, widths and lengths to meet diverse project requirements. We offer flat bars in hot-rolled, pickled & annealed, and polished conditions — with cut-to-length and customized sizes for industrial fabricators. Our export‑ready packing and logistics ensure safe delivery whether to domestic customers in Karnataka, Telangana, Andhra Pradesh & Tamilnadu or to overseas clients.
From a mechanical perspective, Duplex 2205 flat bars deliver high yield strength and tensile strength, combined with good ductility and hardness, enabling their use in high‑load structural applications, heavy fabrication, pressure-bearing components, and corrosion‑prone installations. Their performance and longevity reduce maintenance costs and downtime, making them especially valuable for projects in chemical processing, desalination, power generation, and marine engineering.
Specifications – Duplex 2205 Flat Bars
- Grade: Duplex 2205 (UNS S32205 / EN 1.4462 / WNr 1.4462)
- Standards: Supplied per ASTM A276 / ASTM A479 / EN / ISO / customer-specified standards
- Forms: Flat Bars (hot-rolled, pickled & annealed, polished, cut-to-length)
- Surface Finish: Pickled, Annealed, Polished, Shot-blasted on request
- Supply Condition: Solution annealed & stress relieved
Chemical Composition (Typical wt%)
| Element | Typical Range (%) |
|---|---|
| Chromium (Cr) | 22.0 – 23.5 |
| Nickel (Ni) | 4.5 – 6.5 |
| Molybdenum (Mo) | 3.0 – 3.5 |
| Nitrogen (N) | 0.14 – 0.20 |
| Manganese (Mn) | ≤ 2.0 |
| Carbon (C) | ≤ 0.03 |
| Silicon (Si) | ≤ 1.0 |
| Phosphorus (P) | ≤ 0.03 |
| Sulfur (S) | ≤ 0.02 |
Mechanical Properties (Typical)
| Property | Value |
|---|---|
| Tensile Strength (Rm) | ≥ 620 MPa |
| Yield Strength (0.2% proof) | ≥ 450 MPa |
| Elongation (A) | ≥ 25% |
| Hardness (Brinell) | ≤ 290 HB |
Equivalent Grades
| Standard / Region | Designation |
|---|---|
| UNS | S32205 / S31803 (as referenced) |
| EN / WNr | 1.4462 |
| AISI / ASTM | Duplex 2205 Flat Bar |
Dimension Chart – Typical Flat Bar Sizes
| Width (mm) | Thickness (mm) | Length (mm) |
|---|---|---|
| 25 – 300 | 5 – 50 | 1000 – 6000 (custom cut-to-length available) |
| 50 – 250 | 6 – 40 | Cut-to-size available per project requirement |
Applications of Duplex 2205 Flat Bars
- Structural frames, supports and platforms in offshore & marine projects (suitable for coastal & island regions like Andaman & Nicobar)
- Seawater piping supports, pump bases, and skids in desalination and seawater cooling systems
- Fabricated components in chemical, petrochemical, fertilizer and power plants in Tamilnadu, Andhra Pradesh, Karnataka and Telangana
- Pressure vessel supports, equipment frames and corrosion‑resistant structures in refineries and industrial plants
- Heavy fabrication, machine bases, structural members in industrial buildings, shipyards and coastal installations
Because of their versatility, Duplex 2205 flat bars are widely used in manufacturing seawater piping supports, structural frames, skids, platforms, weldments, pump bases, crusher frames, offshore structural members, and corrosion-resistant structural components in refineries, desalination plants, and power plants across Tamilnadu, Andhra Pradesh, Karnataka, Telangana, Puducherry and Andaman & Nicobar Islands..
Committed to quality, compliance, and customer satisfaction, Rose Metal Industries continues to serve a wide array of industries with Duplex 2205 flat bars — offering reliable supply, global standards, and robust after-sales support for long-term performance and global export readiness.
Frequently Asked Questions (FAQ)
Q1: Why choose Duplex 2205 Flat Bars over conventional stainless steel flat bars?
A: Duplex 2205 offers much higher strength, better resistance to chloride corrosion and stress‑corrosion cracking, longer life in seawater or chemical environments — making it superior to standard austenitic stainless steels for demanding applications.
Q2: Do you supply mill test certificates (MTC) and quality documentation?
A: Yes — Rose Metal Industries provides full mill test certificates (EN 10204 / 3.1 or equivalent), PMI chemical analysis, mechanical test reports and third‑party inspection documentation on request.
Q3: Can you supply custom sizes, thicknesses and cut-to-length flat bars?
A: Yes — we offer custom width, thickness, length, surface finish (pickled, polished, shot-blasted), and cut-to-size flat bars to match project requirements in Tamilnadu, Andhra Pradesh, Karnataka, Telangana, Puducherry and Andaman & Nicobar Islands.
Q4: Are Duplex 2205 Flat Bars suitable for marine and coastal applications?
A: Absolutely — Duplex 2205’s high chromium, molybdenum and nitrogen content ensures excellent resistance to pitting and crevice corrosion in saltwater and chloride-rich environments, making flat bars ideal for marine, offshore and desalination structures.
Q5: Do you export Duplex 2205 Flat Bars globally?
A: Yes — we supply to domestic industrial customers across South India and export globally to Europe, Middle East, Africa and Asia with export‑ready packaging and complete documentation.