InduSteel Rod/Bar,URANUS® 52N+ 25 Cr Super Duplex Stainless Steel Rod/Bar with PREN = 40

InduSteel Rod URANUS® 52N+ 25 Cr Super Duplex Stainless Steel Rod with PREN = 40 Product Information -:- For detailed product information, please contact sales. -: InduSteel Rod URANUS® 52N+ 25 Cr Super Duplex Stainless Steel Rod with PREN = 40 Synonyms -:- For detailed product information, please contact sales. -:

Industeel URANUS® 52N+ 25 Cr Super Duplex Stainless Steel with PREN = 40 Product Information -:- For detailed product information, please contact sales. -: **Product Name:** Industeel URANUS® 52N+ (25% Cr Super Duplex Stainless Steel, PREN ≥ 40) **Introduction:** Industeel URANUS® 52N+ is a **premium, hyper-duplex stainless steel** that pushes the boundaries of the duplex family's performance envelope. Representing a **higher-strength evolution** of the 25% Cr super duplex class, it combines an optimized, nitrogen-enhanced alloy composition to achieve a **remarkable synergy of extreme mechanical strength and superior corrosion resistance**. With a Pitting Resistance Equivalent Number (PREN) guaranteed at ≥ 40, it is engineered for the most demanding applications where both **exceptional load-bearing capability** and **uncompromising resistance** to aggressive, chloride-rich environments are simultaneously required, often serving as a more economical alternative to high-strength nickel alloys. **Key Features:** * **Ultra-High Mechanical Strength:** Delivers the highest yield and tensile strength within the standard URANUS® super duplex range, enabling groundbreaking lightweight design and pressure containment capabilities where conventional duplex steels are insufficient. * **Extreme Corrosion Resistance:** Maintains a PREN ≥ 40, providing outstanding resistance to pitting, crevice corrosion, and stress corrosion cracking (SCC) in environments with high chlorides, acidity, and H₂S. * **Exceptional Toughness at Low Temperatures:** Maintains high impact toughness even at sub-zero temperatures, making it suitable for cryogenic services and arctic environments. * **Optimized for Fabrication:** Despite its high strength, the alloy is designed with a balanced composition to maintain good weldability and formability using specialized procedures for super duplex grades. --- **1. Chemical Composition (Typical Weight % - Industeel Enhanced Specification)** The composition is precisely tuned to achieve a high-strength, corrosion-resistant austenite-ferrite microstructure. | Element | Content (%) | Element | Content (%) | | :------------- | :------------ | :------------- | :---------- | | Chromium (Cr) | 24.0 - 26.0 | Nickel (Ni) | 6.0 - 9.0 | | Molybdenum (Mo)| 3.0 - 4.5 | Nitrogen (N) | **0.25 - 0.35** | | Manganese (Mn) | ≤ 1.5 | Copper (Cu) | 0.20 - 1.00 | | Silicon (Si) | ≤ 0.50 | Carbon (C) | ≤ 0.030 | | Phosphorus (P) | ≤ 0.030 | Sulfur (S) | ≤ 0.010 | | Tungsten (W) | 0.50 - 1.50 | | | | **Iron (Fe)** | **Balance** | | | **Key Alloying Note:** The **significantly elevated nitrogen (N) content** is the primary driver for its ultra-high strength and stable austenite phase balance. Tungsten (W) further enhances localized corrosion resistance. **PREN Calculation:** PREN = %Cr + 3.3(%Mo + 0.5%W) + 16(%N) ≥ **40** --- **2. Physical & Mechanical Properties (Typical at Room Temperature - Solution Annealed)** | Property | Value / Range | | :-------------------------------------------- | :-------------------------------- | | Density | 7.80 g/cm³ | | Melting Range | 1400 - 1450 °C | | Thermal Conductivity (20°C) | 16 W/m·K | | Coefficient of Thermal Expansion (20-100°C) | 12.5 x 10⁻⁶ /K | | Modulus of Elasticity | 200 GPa | | **Tensile Strength (Rm)** | **900 - 1100 MPa** | | **Yield Strength (Rp0.2)** | **≥ 650 MPa** | | **Elongation (A in 50mm)** | **≥ 20 %** | | Hardness (Brinell) | 290 - 350 HBW | | **Impact Toughness (Charpy V-notch, min.)** | **≥ 60 J at -40°C** | | **Critical Pitting Temperature (CPT) - ASTM G48** | **Typically ≥ 70°C** | | **Critical Crevice Temperature (CCT) - ASTM G48** | **Typically ≥ 45°C** | | Maximum Recommended Service Temperature | ≈ 250°C (strict thermal history control required) | --- **3. Product Forms & Applications** **Available Product Forms:** * Heavy Plate and Structural Sections * Seamless Pipe & Tube (for high-pressure applications) * Bar and Wire (for fasteners, shafts) * Custom Forgings (for demanding components like valves and wellhead parts) **Primary Applications (Ultra-Demanding Service):** URANUS® 52N+ is engineered for frontier applications where its unique strength-corrosion balance is critical: * **Oil & Gas – Ultra-Deepwater/High-Pressure/High-Temperature (HPHT):** Thick-walled production tubing, risers, manifolds, and Christmas trees subject to extreme pressures, low temperatures, and corrosive reservoir fluids. * **Oil & Gas – Severe Sour & Clad Backing Material:** Components in extremely aggressive H₂S/CO₂/Cl⁻ environments. Also used as a high-strength backing material for explosion-clad vessels. * **Marine & Offshore – High-Load Components:** Propeller shafts, stern tubes, subsea connector hubs, and mooring system components requiring high strength and seawater corrosion resistance. * **Chemical Processing – High-Pressure Reactors:** Vessels and piping for processes involving high pressure combined with corrosive media (e.g., urea, acetic acid). * **Energy & Power:** Shafts and components in advanced geothermal systems and high-pressure seawater cooling circuits. * **Cryogenic Applications:** Storage and handling equipment for liquefied gases (LNG, etc.) where low-temperature toughness is required alongside corrosion resistance. * **Fasteners & Bolting:** High-strength bolts for flanged connections in corrosive offshore and subsea environments. --- **4. International Standards & Approvals** URANUS® 52N+ aligns with the highest-tier super duplex specifications and may exceed standard grade minima. | Standard Type | Standard Number & Designation | Notes | | :------------------ | :--------------------------------------------------------------------------------------------------------------------------- | :-------------------------------------------------------------------- | | **Unified Numbering System (UNS)** | **S32760** (or similar high-strength variants) / Complies with **S32750** at enhanced levels | May correspond to proprietary grades like ZERON® 100 or SAF 2707 HD™. | | **EN / EURONORM (Europe)** | Potentially aligns with **1.4501** or supplied to meet key properties of **1.4410 (S32750)** at enhanced strength levels. | Often specified by proprietary name and technical agreement. | | **ASTM (USA)** | Typically supplied to meet the mechanical and chemical requirements of **ASTM A240 S32750** or similar, with guaranteed higher minima. | The primary reference is the Industeel datasheet, not a generic ASTM grade. | | **NACE MR0175 / ISO 15156** | **Fully Compliant** (with strict hardness control, typically ≤ 36 HRC) | Qualification for specific sour service conditions is essential. | | **Specialized Approvals** | **DNV, ABS, Lloyds** for offshore applications.
**PED 2014/68/EU** compliance.
**NORSOK M-630** (Material Data Sheet) approval possible. | Project-specific certification is common. | | **Key Procurement Specification** | **Proprietary Industeel URANUS® 52N+ Technical Datasheet & Purchasing Specification** | **The definitive and mandatory document** for ordering, defining all enhanced properties and controls. | **Critical Procurement & Fabrication Note:** URANUS® 52N+ is a **specialist, high-performance alloy**. Procurement must be based explicitly on the **Industeel URANUS® 52N+ datasheet**. The **Manufacturer's Test Certificate (MTC/CMTR) is paramount** and must include heat-specific data: full chemical analysis (for PREN verification), ferrite content (target ~40-50%), Charpy impact values at specified temperatures, and often corrosion test results (CPT/CCT). **Welding is highly critical** and requires **expert procedures** using **highly over-matching super duplex or nickel-based filler metals** (e.g., ER2594, Ni-alloy 625). Strict control of interpass temperature and heat input is mandatory to avoid deleterious phase precipitation. Pre-qualification of welding procedures is strongly recommended. -:- For detailed product information, please contact sales. -: Industeel URANUS® 52N+ 25 Cr Super Duplex Stainless Steel with PREN = 40 Specification Dimensions Size： Diameter 20-1000 mm Length <7277 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® 52N+ 25 Cr Super Duplex Stainless Steel with PREN = 40 Properties -:- For detailed product information, please contact sales. -:

Applications of InduSteel Rod URANUS® 52N+ 25 Cr Super Duplex Stainless Steel Rod with PREN = 40 -:- For detailed product information, please contact sales. -: Chemical Identifiers InduSteel Rod URANUS® 52N+ 25 Cr Super Duplex Stainless Steel Rod with PREN = 40 -:- For detailed product information, please contact sales. -:

Packing of InduSteel Rod URANUS® 52N+ 25 Cr Super Duplex Stainless Steel Rod with PREN = 40 -:- 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 Rod 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 3748 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