Duplex 2205 Angles and Channels
Duplex 2205 angles and channels are used where structural integrity and long service life are required in aggressive environments — for example in offshore platforms, port structures, seawater-cooled heat exchangers, chemical plants and coastal infrastructure. Rose Metal Industries produces these sections in a range of sizes, thicknesses and finishes (pickled, annealed, shot-blasted or milled) and supports custom lengths and fabrication-ready cutting for fast installation at project sites in Chennai, Visakhapatnam, Mangalore, Port Blair, Bengaluru and Hyderabad.
Our manufacturing process follows strict quality control with traceable mill certificates, PMI/chemical verification, mechanical testing and NDT as requested. Stock holdings include hot-rolled and formed angles and channels, both standard and heavy sections, enabling quick turnaround for urgent orders across Karnataka, Andhra Pradesh and Tamilnadu. Export packing and logistics are arranged to ensure parts arrive damage-free at overseas destinations in the Middle East, Africa, Europe and Asia.
From a metallurgical standpoint, Duplex 2205’s two-phase microstructure delivers nearly twice the yield strength of conventional austenitic grades, meaning lighter-weight structures or reduced section sizes for equivalent loadings. This strength advantage, together with superior chloride resistance, makes Duplex 2205 angles & channels particularly attractive for desalination facilities, offshore support frames, structural members in refineries and chemical plants where corrosion and weight both matter..
Rose Metal Industries also offers value-added services such as pre-fabrication, CNC profiling, hole punching, tack-welding and surface treatments to supply ready-to-install components. Whether the application is coastal infrastructure in Puducherry and the Andaman & Nicobar Islands or process skids in industrial parks of Telangana and Andhra Pradesh, our Duplex 2205 structural sections are engineered for durability and low life-cycle cost.
Specifications
- Grade: Duplex 2205 / UNS S32205 / UNS S31803 / EN 1.4462
- Standards: ASTM A276, ASTM A479, EN 10088, DIN Standards
- Forms: Equal Angle, Unequal Angle, C-Channel, U-Channel, Custom Profiles
- Finish: Hot Rolled, Pickled, Annealed, Polished
- Supply Condition: Solution Annealed / HRAP
Chemical Composition (Typical %)
| Element | Content (%) |
|---|---|
| Cr | 22.0 – 23.0 |
| Ni | 4.5 – 6.5 |
| Mo | 3.0 – 3.5 |
| C | ≤ 0.03 |
| N | 0.14 – 0.20 |
| Mn | ≤ 2.0 |
| Si | ≤ 1.0 |
Mechanical Properties
| Property | Value |
|---|---|
| Tensile Strength | ≥ 620 MPa |
| Yield Strength | ≥ 450 MPa |
| Elongation | ≥ 25% |
| Hardness | ≤ 290 HB |
Equivalent Grades
| Standard | Grade |
|---|---|
| UNS | S32205 / S31803 |
| EN | 1.4462 |
| WNR | 1.4462 |
| AFNOR | Z3 CrNi 22.05 |
Dimension Chart (Common Sizes)
| Size (mm) | Thickness (mm) | Type |
|---|---|---|
| 25×25 | 3 – 6 | Equal Angle |
| 40×40 | 4 – 8 | Equal Angle |
| 50×30 | 3 – 8 | Unequal Angle |
| 75×40 | 4 – 10 | Unequal Angle |
| U-Channel 50 | 4 – 12 | U Channel |
| C-Channel 100 | 5 – 12 | C Channel |
Applications of Duplex 2205 Angles & Channels
- Offshore platforms & marine structural frameworks
- Desalination plants & seawater systems
- Chemical & petrochemical plants
- Shipbuilding & heavy fabrication
- Construction & architectural structures
- Pulp & paper industry supports
- High-strength equipment frames and machine structures
Committed to global standards and customer satisfaction, Rose Metal Industries is an established supplier of Duplex 2205 angles & channels — combining material expertise, broad stock availability and export experience to serve both domestic Indian markets and international projects..
Every product undergoes strict quality checks including UT testing, mechanical testing, PMI tests, and dimensional accuracy evaluation. Our Duplex 2205 structural profiles are widely exported to Europe, the Middle East, Africa, and Southeast Asia, making us a preferred global supplier for high-performance duplex structural components.
Frequently Asked Questions (FAQ)
Q1: Why choose Duplex 2205 for angles and channels?
A: Duplex 2205 provides nearly double the strength of 304/316 and excellent resistance to chloride corrosion, ideal for coastal and marine projects in South India and global locations.
Q2: Do you provide test certificates and third-party inspection?
A: Yes, Rose Metal Industries supplies MTCs (EN 10204 3.1) and offers PMI, NDT, UT testing and third-party inspections (BV, TUV, DNV).
Q3: What standards are followed for Duplex 2205 structural profiles?
A: Products are supplied as per ASTM A276 / A479, EN 10088, and equivalent international standards.
Q4: Can you provide custom sizes and fabrication?
A: Yes, we offer cutting, bending, drilling, custom lengths, and export-grade packing.
Q5: Do you supply to Tamilnadu, Andhra Pradesh, Karnataka, Telangana, Puducherry & Andaman?
A: Yes, we have strong distribution and supply networks across these regions and also export globally.