Outokumpu 2205 Duplex Stainless Steel Wire

Outokumpu 2205 Duplex Stainless Steel Wire Product Information -:- For detailed product information, please contact sales. -: Outokumpu 2205 Duplex Stainless Steel Wire Synonyms -:- For detailed product information, please contact sales. -:

Outokumpu 2205 Duplex Stainless Steel Product Information -:- For detailed product information, please contact sales. -: # **Product Name: Outokumpu 2205 Duplex Stainless Steel (UNS S32205 / EN 1.4462)** ## **Introduction** Outokumpu 2205 is the **global benchmark for duplex stainless steel**, setting the industry standard for performance and reliability. This 22% chromium, 3% molybdenum, and nitrogen-alloyed steel possesses a balanced microstructure of approximately equal parts austenite and ferrite. It delivers an **exceptional synergy of high strength, superior corrosion resistance, and excellent cost-effectiveness**. Outokumpu 2205 is specifically engineered to provide **outstanding resistance to chloride stress corrosion cracking (SCC), pitting, and crevice corrosion**, making it the most widely specified duplex grade worldwide for demanding environments in oil & gas, chemical processing, and marine applications. ## **Key Features** * **Exceptional Strength-to-Weight Ratio:** Yield strength (~450 MPa min.) is **over double that of standard austenitic grades like 316L**, enabling significant weight reduction, material savings, and higher pressure ratings in design. * **Superior and Proven Corrosion Resistance:** Excellent resistance to chloride-induced stress corrosion cracking (SCC) and robust resistance to pitting and crevice corrosion, with a guaranteed Pitting Resistance Equivalent Number (PREN) ≥ 34. * **Excellent Fabricability and Weldability:** Designed for reliable welding and forming using established industry practices and matching duplex filler metals (e.g., 2209 type). * **Optimal Lifecycle Cost:** Offers the best value proposition within the duplex family, bridging the gap between standard stainless steels and more expensive super duplex or nickel alloys. --- ## **1. Chemical Composition (Typical Weight % - Outokumpu Specification)** The composition is precisely controlled to ensure a stable, balanced microstructure and consistent, premium performance. | Element | Content (%) | Element | Content (%) | | :------------- | :------------ | :------------- | :---------- | | 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) | ≤ 2.0 | Copper (Cu) | ≤ 0.20 | | Silicon (Si) | ≤ 0.8 | Carbon (C) | ≤ 0.030 | | Phosphorus (P) | ≤ 0.035 | Sulfur (S) | ≤ 0.015 | | **Iron (Fe)** | **Balance** | | | **Key Quality Differentiator:** Outokumpu 2205 meets the premium **UNS S32205** specification, guaranteeing the higher minimum contents of Molybdenum (≥3.0%) and Nitrogen (≥0.14%) for superior, consistent pitting resistance compared to UNS S31803. **PREN Calculation:** PREN = %Cr + 3.3(%Mo) + 16(%N) ≥ **34** (Typically 35-36) --- ## **2. Physical & Mechanical Properties (Typical - Solution Annealed Condition)** | Property | Value / Range | | :-------------------------------------------- | :-------------------------------- | | Density | 7.80 g/cm³ | | Thermal Conductivity (20°C) | 19 W/m·K | | Coefficient of Thermal Expansion (20-100°C) | 13.7 x 10⁻⁶ /K | | Modulus of Elasticity | 200 GPa | | **Tensile Strength (Rm)** | **700 - 900 MPa** | | **Yield Strength (Rp0.2)** | **≥ 500 MPa** | | **Elongation (A in 50mm)** | **≥ 25 %** | | Hardness (Brinell) | 240 - 300 HBW | | **Impact Toughness (Charpy V-notch, min.)** | **≥ 100 J at -40°C** | | Maximum Recommended Service Temperature | ~300°C | --- ## **3. Product Forms & Applications** **Available Product Forms:** * Plate, Sheet, and Coil * Seamless and Welded Pipe & Tube (Process, Mechanical, Heat Exchanger) * Bar, Rod, Wire, and Hollow Bar * Flanges, Fittings, and Forgings **Primary Applications:** Outokumpu 2205 is the quintessential duplex grade for severe environments across major industries: * **Oil & Gas Industry:** Production tubing, flowlines, separators, heat exchangers, and pressure vessels in offshore, subsea, and sour (H₂S) service. Fully compliant with **NACE MR0175/ISO 15156**. * **Chemical & Petrochemical Processing:** Reactors, columns, tanks, and piping for chlorides, organic acids, and aggressive chemical media. * **Pulp & Paper Industry:** Digester vessels, bleach plants, and liquor handling systems. * **Marine & Offshore:** Seawater cooling systems, pumps, valves, and structural components. * **Desalination & Water Treatment:** High-pressure reverse osmosis (RO) membranes, piping, and pumps. * **Pollution Control:** Flue gas desulfurization (FGD) scrubbers, ducting, and absorber towers. * **Architecture & Construction:** Structural components and bridges in highly corrosive coastal and industrial atmospheres. --- ## **4. International Standards & Approvals** Outokumpu 2205 is universally recognized and meets all major international standards for premium duplex stainless steel. | Standard Type | Standard Number & Designation | Notes | | :------------------ | :--------------------------------------------------------------------------------------------------------------------------- | :-------------------------------------------------------------------- | | **Unified Numbering System (UNS)** | **S32205** | The premium duplex designation. Outokumpu 2205 is supplied to this specification. | | **EN / EURONORM (Europe)** | **1.4462** | The standard European designation. | | | EN 10088-2: Sheet/Plate
EN 10216-5: Seamless pressure tubes
EN 10253-4: Butt-welding fittings | | | **ASTM (USA)** | **ASTM A240** (Plate/Sheet/Strip)
**ASTM A790/A789** (Pipe & Tube)
ASTM A182 (Forgings)
ASTM A276 (Bar) | The primary procurement standards. | | **NACE MR0175 / ISO 15156** | **Fully Compliant** | Approved for sour service (H₂S environments) within defined limits. Requires hardness control (typically ≤ 32 HRC). | | **ASME Boiler & Pressure Vessel Code** | **Section II, Part A** (SA-240, SA-789, etc.) | Approved for pressure-retaining applications. | | **Other Standards** | JIS G4304 / G4305 (Japan) - SUS 329J3L
GB/T 20878 (China) - 022Cr22Ni5Mo3N
AS 4677 (Australia) - 2205 | Widely adopted in national standards. | --- ## **Important Technical & Procurement Note** To guarantee receipt of the premium grade, always specify **"Outokumpu 2205 to UNS S32205"** or **"EN 1.4462"**. Material must be supplied in the **solution annealed and quenched condition**. * **Fabrication & Welding:** Requires qualified procedures. Welding must use appropriate duplex consumables (e.g., AWS A5.9 ER2209) with controlled heat input. * **Certification:** Require a **material test certificate (MTC/CMTR)** confirming compliance with UNS S32205, showing the chemical analysis (ensuring Mo ≥ 3.0%, N ≥ 0.14%) and mechanical properties. * **Outokumpu Advantage:** As the original developer and a major producer, Outokumpu provides guaranteed consistency, deep technical expertise, and a full range of product forms. -:- For detailed product information, please contact sales. -: Outokumpu 2205 Duplex Stainless Steel Specification Dimensions Size： Diameter 20-1000 mm Length <7288 mm Size:We can customized as required Standard： Per your request or drawing We can customized as required Properties（Theoretical） Chemical Composition -:- For detailed product information, please contact sales. -: Outokumpu 2205 Duplex Stainless Steel Properties -:- For detailed product information, please contact sales. -:

Applications of Outokumpu 2205 Duplex Stainless Steel Wire -:- For detailed product information, please contact sales. -: Chemical Identifiers Outokumpu 2205 Duplex Stainless Steel Wire -:- For detailed product information, please contact sales. -:

Packing of Outokumpu 2205 Duplex Stainless Steel Wire -:- For detailed product information, please contact sales. -: Standard Packing: -:- For detailed product information, please contact sales. -: Typical bulk packaging includes palletized plastic 5 gallon/25 kg. pails, fiber and Steel Wire drums to 1 ton super sacks in full container (FCL) or truck load (T/L) quantities. Research and sample quantities and hygroscopic, oxidizing or other air sensitive materials may be packaged under argon or vacuum. Solutions are packaged in polypropylene, plastic or glass jars up to palletized 3759 gallon liquid totes Special package is available on request. E FORUs’ is carefully handled to minimize damage during storage and transportation and to preserve the quality of our products in their original condition