InduSteel Tube,Pipe,URANUS® 45N+ 22% Cr Austenitic-Ferritic Duplex Stainless Steel Tube,Pipe

InduSteel Tube URANUS® 45N+ 22% Cr Austenitic-Ferritic Duplex Stainless Steel Tube Product Information -:- For detailed product information, please contact sales. -: InduSteel Tube URANUS® 45N+ 22% Cr Austenitic-Ferritic Duplex Stainless Steel Tube Synonyms -:- For detailed product information, please contact sales. -:

Industeel URANUS® 45N+ 22% Cr Austenitic-Ferritic Duplex Stainless Steel Product Information -:- For detailed product information, please contact sales. -: **Product Name:** Industeel URANUS® 45N+ (22% Cr Austenitic-Ferritic Duplex Stainless Steel) **Introduction:** Industeel URANUS® 45N+ is a **premium-enhanced standard duplex stainless steel** engineered to deliver maximum reliability and performance in the most demanding chloride-rich environments. Building upon the proven foundation of the classic 22% Cr duplex grades (like UNS S32205), URANUS® 45N+ features a **specifically optimized chemical composition and stringent manufacturing controls**. This results in a product with an **exceptionally stable and balanced austenite-ferrite microstructure**, **superior consistency in mechanical properties**, and **enhanced guaranteed corrosion resistance**, particularly against pitting, crevice corrosion, and stress corrosion cracking (SCC). It is the material of choice for critical applications where failure is not an option. **Key Features:** * **Enhanced & Guaranteed Corrosion Resistance:** Offers a **higher minimum Pitting Resistance Equivalent Number (PREN ≥ 35)** through tightly controlled alloying, providing an extra margin of safety against localized corrosion in aggressive media like seawater, brackish water, and chemical process streams. * **Exceptional Structural Integrity:** Delivers **very high and consistent mechanical strength** (yield strength typically ≥ 550 MPa), approximately double that of standard austenitic steels, enabling lightweight, high-pressure design. * **Superior Microstructural Stability:** The optimized composition minimizes the risk of detrimental secondary phase precipitation (e.g., sigma phase) during welding or thermal processing, ensuring **excellent weldability and fabrication safety**. * **Proven Reliability for Critical Service:** Designed and manufactured to meet the highest quality standards for sour service, offshore, and subsea applications, providing long-term asset integrity. --- **1. Chemical Composition (Typical Weight % - Industeel Enhanced Specification)** The composition is tightly controlled to the upper range of standard duplex, ensuring higher minimum performance. | Element | Content (%) | Element | Content (%) | | :------------- | :------------ | :------------- | :---------- | | Chromium (Cr) | 22.5 - 23.5 | Nickel (Ni) | 5.5 - 6.5 | | Molybdenum (Mo)| 3.2 - 3.8 | Nitrogen (N) | 0.18 - 0.24 | | Manganese (Mn) | ≤ 1.5 | Copper (Cu) | ≤ 0.15 | | Silicon (Si) | ≤ 0.50 | Carbon (C) | ≤ 0.025 | | Phosphorus (P) | ≤ 0.025 | Sulfur (S) | ≤ 0.005 | | **Iron (Fe)** | **Balance** | | | **Key Differentiator:** Compared to standard S32205, URANUS® 45N+ typically features **higher minima for Cr, Mo, and N**, and **lower maxima for impurities (Si, P, S)**. This is the foundation of its enhanced performance. **PREN Calculation:** PREN = %Cr + 3.3(%Mo) + 16(%N) ≥ **35** --- **2. Physical & Mechanical Properties (Typical at Room Temperature - Solution Annealed)** | Property | Value / Range | | :-------------------------------------------- | :-------------------------------- | | Density | 7.80 g/cm³ | | Melting Range | 1380 - 1445 °C | | 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)** | **750 - 950 MPa** | | **Yield Strength (Rp0.2)** | **≥ 550 MPa** | | **Elongation (A in 50mm)** | **≥ 25 %** | | Hardness (Brinell) | 250 - 300 HBW | | **Impact Toughness (Charpy V-notch, min.)** | **≥ 120 J at -40°C** | | **Critical Pitting Temperature (CPT) - ASTM G48** | **Typically ≥ 45°C** | | Maximum Recommended Service Temperature | ≈ 280°C (to avoid embrittlement) | --- **3. Product Forms & Applications** **Available Product Forms:** * Heavy Plate and Sheet * Hot Rolled Bar and Forging Blooms * Seamless Pipe & Tube * Custom Forgings (for flanges, fittings, valves) **Target Applications (Critical Service):** URANUS® 45N+ is specified for the most severe duties where standard duplex may be at its limits: * **Offshore Oil & Gas - Subsea Systems:** Manifolds, Christmas trees, jumpers, flowlines, and umbilicals exposed to high-pressure, cold seawater with cathodic protection. * **Oil & Gas - Sour Service:** Critical components in wells with high H₂S and chloride content, requiring full compliance with the strictest **NACE MR0175/ISO 15156** guidelines. * **Chemical Processing:** High-pressure reactors, heat exchangers, and columns in concentrated chloride and acid services. * **LNG & Gas Processing:** Heat exchangers and cold box structures in liquefaction plants. * **Severe Marine Environments:** Propeller shafts, rudder stocks, high-performance seawater pumps, and desalination system high-pressure RO membranes. * **Pollution Control - Advanced FGD:** Outlet ducts and absorber towers in highly corrosive flue gas cleaning systems. --- **4. International Standards & Approvals** URANUS® 45N+ is a proprietary enhanced grade that meets and exceeds the requirements of standard duplex specifications. | Standard Type | Standard Number & Designation | Notes | | :------------------ | :--------------------------------------------------------------------------------------------------------------------------- | :-------------------------------------------------------------------- | | **Unified Numbering System (UNS)** | **S32205** (Meets and Exceeds) | Supplied to meet the chemical and mechanical requirements of S32205, with typical properties significantly above the minima. | | **EN / EURONORM (Europe)** | **1.4462** (Enhanced) | Conforms to the standard, but with tighter compositional control and enhanced guaranteed properties. | | **ASTM (USA)** | **ASTM A240** S32205 / **ASTM A182** F51 / **ASTM A790** S32205 | Certified to these standards, with supplementary enhanced property guarantees from Industeel. | | **NACE MR0175 / ISO 15156** | **Fully Compliant (Maximum Hardness typically ≤ 310 HBW / 32 HRC)** | Qualified for the most severe sour service conditions (Region 3). Requires specific heat treatment and testing. | | **Specialized Approvals** | **DNVGL, ABS, Lloyds** for offshore and marine applications.
**AD 2000-Merkblatt W0 / W2** for pressure vessel approval in Germany. | Often supplied with supplementary certification for specific projects. | | **Key Procurement Specification** | **Proprietary Industeel URANUS® 45N+ Technical Datasheet** | The primary reference for its enhanced guaranteed properties (PREN, CPT, impact toughness). | **Critical Procurement & Fabrication Note:** URANUS® 45N+ is a **premium engineered product**. Procurement should explicitly reference "Industeel URANUS® 45N+" alongside standard designations (e.g., ASTM A240 S32205) to ensure receipt of the enhanced grade. The **Manufacturer's Test Certificate must include supplementary data** such as calculated PREN, ferrite content (aim: 40-60%), and often corrosion test results (CPT). Welding must follow strict procedures using **over-alloyed duplex or super duplex filler metals** (e.g., ER2594) for the most critical welds to maintain the corrosion resistance of the weld metal. -:- For detailed product information, please contact sales. -: Industeel URANUS® 45N+ 22% Cr Austenitic-Ferritic Duplex Stainless Steel Specification Dimensions Size： Diameter 20-1000 mm Length <7275 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. -: Industeel URANUS® 45N+ 22% Cr Austenitic-Ferritic Duplex Stainless Steel Properties -:- For detailed product information, please contact sales. -:

Applications of InduSteel Tube URANUS® 45N+ 22% Cr Austenitic-Ferritic Duplex Stainless Steel Tube -:- For detailed product information, please contact sales. -: Chemical Identifiers InduSteel Tube URANUS® 45N+ 22% Cr Austenitic-Ferritic Duplex Stainless Steel Tube -:- For detailed product information, please contact sales. -:

Packing of InduSteel Tube URANUS® 45N+ 22% Cr Austenitic-Ferritic Duplex Stainless Steel Tube -:- 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 Tube 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 3746 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