InduSteel Flange,URANUS® 35N 23.04 Duplex Stainless Steel Flange with PREN = 24

1,We Manufacturing processes are primarily classified into four types: 1:Forging, 2:Casting, 3:Cutting, 4:Rolling. 2,We can manufacture in accordance with these standards. Standards: GB Series (Chinese Standards), JB Series (Machinery Standards), HG Series (Chemical Industry Standards), ASME B16.5 (American Standards), BS4504 (British Standards), DIN (German Standards), and JIS (Japanese Standards). Internationally, there are two primary systems of pipe flange standards: the European system, represented by the German DIN standards (including those of the former Soviet Union), and the American system, represented by the US ANSI pipe flange standards. Other common standards include: the Chinese Ministry of Machinery Industry standards (JB series), the Ministry of Chemical Industry standards (HG series), the Chinese National Standard *GB/T 9112–9124-2010 Steel Pipe Flanges*, as well as US standards (ASME B16.5), British standards (BS4504), German standards (DIN), Japanese standards (JIS), and marine standards (CBM), among others. The nominal pressure ratings for the PN series are designated by "PN" and comprise the following nine levels: PN2.5, PN6, PN10, PN16, PN25, PN40, PN63, PN100, and PN160. The nominal pressure ratings for the Class series are designated by "Class" and comprise the following six levels: Class150, Class300, Class600, Class900, Class1500, and Class2500. Flange Classification 1. **According to Chemical Industry Standards:** Flanges are classified as follows: Plate Flat Welding Flange (PL), Necked Flat Welding Flange (SO), Necked Butt Welding Flange (WN), Integral Flange (IF), Socket Welding Flange (SW), Threaded Flange (Th), Butt Welding Ring Loose Flange (PJ/SE), Blind Flange (BL), Flat Welding Ring Loose Flange (PJ/PJ), and Lined Blind Flange (BL(s)). 2. **According to Petrochemical (SH) Industry Standards:** Flanges are classified as follows: Threaded Flange (PL), Butt Welding Flange (WN), Flat Welding Flange (SO), Socket Welding Flange (SW), Loose Flange (LJ), and Blind Flange (no specific designation). 3. **According to Machinery (JB) Industry Standards:** Flanges are classified as follows: Integral Flange, Butt Welding Flange, Plate Flat Welding Flange, Butt Welding Ring Plate Loose Flange, Flat Welding Ring Plate Loose Flange, Lap Joint Ring Plate Loose Flange, and Blind Flange. 4. **According to Connection Method/Type:** Flanges are classified as follows: Plate Flat Welding Flange, Necked Flat Welding Flange, Necked Butt Welding Flange, Socket Welding Flange, Threaded Flange, Blind Flange, Necked Butt Welding Ring Loose Flange, Flat Welding Ring Loose Flange, Ring-Type Joint (RTJ) Flange and Blind Flange, Large-Diameter Plate Flange, Large-Diameter High-Neck Flange, Figure-8 Blind Plate, Butt Welding Ring Loose Flange, etc. 5. **According to the Component Being Connected:** Flanges can be classified into Vessel Flanges and Pipe Flanges. 6. **According to Structural Type:** Flanges include Integral Flanges, Threaded Flanges, Flat Welding Flanges, Butt Welding Flanges, Lap Joint (Loose/Swivel) Flanges, and Blind Flanges. A flange—also referred to as a flange plate or rim—is a component used to connect shafts to one another, or, more commonly, to join the ends of pipes. Flanges are also utilized at the inlet and outlet ports of equipment to facilitate connections between two devices—for instance, the flange on a speed reducer. A "flange connection" or "flanged joint" refers to a detachable joint assembly comprising three interconnected elements—a flange, a gasket, and bolts—that together form a sealed structural unit. In the context of piping systems, a "pipe flange" specifically denotes a flange used for plumbing within the installation; when applied to equipment, it refers to the inlet or outlet flange of that specific device. Flanges feature a series of holes through which bolts are inserted to securely fasten the two flanges together, while a gasket placed between the flanges ensures a leak-proof seal. Flanges are broadly categorized into three types: threaded (screw-in) flanges, welded flanges, and clamp-type flanges. Flanges are invariably used in pairs; threaded flanges are suitable for low-pressure piping applications, whereas welded flanges are required for systems operating at pressures exceeding 4 kilograms per square centimeter. A sealing gasket is inserted between the two flange plates, which are then firmly secured using bolts. The thickness of a flange—as well as the specifications of the bolts used to fasten it—vary depending on the specific pressure rating required for the application. When connecting equipment such as water pumps or valves to piping systems, the corresponding connection points on these devices are often manufactured in the shape of a matching flange; this method of attachment is also referred to as a "flange connection." Generally, any connecting component that utilizes bolts to join and seal the perimeters of two flat surfaces—such as the joints in ventilation ducts—is termed a "flange"; such components may collectively be classified as "flange-type parts." However, since such a connection often constitutes merely a *portion* of a larger device—for instance, the interface between a flange and a water pump—it would be inappropriate to classify the entire water pump itself as a "flange-type part." Conversely, smaller components—such as valves—that feature such flanged interfaces may indeed be appropriately categorized as "flange-type parts." -:- For detailed product information, please contact sales. -: InduSteel Flange URANUS® 35N 23.04 Duplex Stainless Steel Flange with PREN = 24 Product Information -:- For detailed product information, please contact sales. -: InduSteel Flange URANUS® 35N 23.04 Duplex Stainless Steel Flange with PREN = 24 Synonyms -:- For detailed product information, please contact sales. -:

Industeel URANUS® 35N 23.04 Duplex Stainless Steel with PREN = 24 Product Information -:- For detailed product information, please contact sales. -: **Product Name:** Industeel URANUS® 35N (UNS S31212 / 1.4565) – Lean Duplex Stainless Steel with PREN = 24 **Introduction:** Industeel URANUS® 35N (23.04) is a **lean duplex stainless steel** belonging to the URANUS® family. It is specifically engineered to offer a cost-effective alternative to standard austenitic grades like 316L and carbon steel with cladding, providing a **balanced combination of medium corrosion resistance and significantly higher strength**. With a Pitting Resistance Equivalent Number (PREN) of approximately 24, it is designed for environments where excellent mechanical performance is required, but the full corrosion resistance of standard duplex (e.g., 2205) is not necessary. Its low nickel and molybdenum content makes it a more economical and stable-alloying choice. **Key Features:** * **High Strength & Weight Savings:** Delivers nearly double the yield strength of standard austenitic grades (316L), enabling substantial weight reduction and savings in structural and pressure equipment. * **Good Corrosion Resistance:** Offers superior resistance to stress corrosion cracking (SCC) and better general/pitting corrosion resistance than 304L/316L in many mild to moderately corrosive environments (e.g., chlorides, weak acids). * **Excellent Value Proposition:** Provides an optimal performance-to-cost ratio by reducing reliance on expensive alloying elements (Ni, Mo) while maintaining the duplex advantage of strength and SCC resistance. * **Good Weldability & Fabricability:** Can be welded using standard procedures with appropriate lean duplex or overmatching filler metals. --- **1. Chemical Composition (Typical Weight %)** The composition is optimized for a stable austenite-ferrite microstructure with lean alloying. | Element | Content (%) | Element | Content (%) | | :------------- | :------------ | :------------- | :---------- | | Chromium (Cr) | 23.0 - 25.0 | Nickel (Ni) | 3.0 - 5.0 | | Molybdenum (Mo)| 0.10 - 0.60 | Nitrogen (N) | 0.10 - 0.20 | | Manganese (Mn) | 2.00 - 3.50 | Copper (Cu) | 0.50 - 1.50 | | Silicon (Si) | ≤ 1.00 | Carbon (C) | ≤ 0.030 | | Phosphorus (P) | ≤ 0.035 | Sulfur (S) | ≤ 0.015 | | **Iron (Fe)** | **Balance** | | | **PREN Calculation:** PREN = %Cr + 3.3(%Mo) + 16(%N) ≈ **24** --- **2. Physical & Mechanical Properties (Typical at Room Temperature - Annealed)** | Property | Value / Range | | :-------------------------------------------- | :-------------------------------- | | Density | ≈ 7.70 g/cm³ | | Melting Range | ≈ 1420 - 1470 °C | | Specific Heat Capacity (20°C) | ≈ 500 J/kg·K | | Thermal Conductivity (20°C) | ≈ 18 W/m·K | | Coefficient of Thermal Expansion (20-100°C) | ≈ 13.5 x 10⁻⁶ /K | | Modulus of Elasticity | ≈ 200 GPa | | **Tensile Strength (Rm)** | **680 - 880 MPa** | | **Yield Strength (Rp0.2)** | **≥ 500 MPa** | | **Elongation (A)** | **≥ 25 %** | | Hardness (Brinell) | ≈ 260 HBW | | Impact Toughness (Charpy V-notch) | Typically > 100 J at -20°C | --- **3. Product Forms & Applications** **Available Product Forms:** * Plate and Sheet * Welded Pipe & Tube * Bar and Wire * Welding Consumables **Target Applications:** * **Construction & Structural:** Bridges, concrete reinforcement bars (rebar), load-bearing structures in mildly corrosive atmospheres (coastal, de-icing salt environments). * **Water & Waste Treatment:** Tanks, basins, piping, and structural components in freshwater and wastewater treatment plants. * **Pulp & Paper Industry:** Certain sections of pulp processing equipment where high strength is beneficial. * **Chemical & Process Industry:** Tanks, vessels, and piping for less aggressive chemical media (e.g., organic acids, sulfates) where SCC resistance is critical. * **Transportation:** Chassis components, tanker trailers for non-aggressive cargoes. * **Energy:** Flue gas cleaning systems, structural parts in power generation. --- **4. International Standards & Approvals** URANUS® 35N corresponds to specific lean duplex standard grades. | Standard Type | Standard Number & Designation | Notes | | :------------------ | :------------------------------------------------------------------------------------------------------------------------------------------------------------ | :----------------------------------------------------------------------------- | | **Unified Numbering System (UNS)** | **S31212** (Proposed) | Common reference, though not as universally listed as standard duplex grades. | | **EN / EURONORM (Europe)** | **1.4565** (Common material number) | The most recognized standard designation for this alloy type. | | | EN 10088-2: Stainless steel sheet/plate, strip | | | **ASTM (USA)** | May be supplied to meet key mechanical and corrosion properties of similar lean duplex grades under specific customer agreement. | Not covered by a direct, common ASTM grade like 2205. Proprietary/Modified grades are common. | | **Other National Standards** | May have equivalents in various national standards, often categorized as a "lean duplex" or "low-nickel duplex" grade. | Specification by chemical analysis and guaranteed mechanical properties is key. | **Important Note:** Industeel URANUS® 35N is a **proprietary lean duplex grade**. While it aligns with the general characteristics of UNS S31212 / EN 1.4565, its exact properties and availability should be confirmed with Industeel. It is specifically designed for applications where the **high strength of duplex is the primary driver**, offering a more economical solution than standard duplex grades. Selection should be based on a thorough corrosion assessment against the specific service environment. -:- For detailed product information, please contact sales. -: Industeel URANUS® 35N 23.04 Duplex Stainless Steel with PREN = 24 Specification Dimensions Size： Diameter 20-1000 mm Length <7273 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® 35N 23.04 Duplex Stainless Steel with PREN = 24 Properties -:- For detailed product information, please contact sales. -:

Applications of InduSteel Flange URANUS® 35N 23.04 Duplex Stainless Steel Flange with PREN = 24 -:- For detailed product information, please contact sales. -: Chemical Identifiers InduSteel Flange URANUS® 35N 23.04 Duplex Stainless Steel Flange with PREN = 24 -:- For detailed product information, please contact sales. -:

Packing of InduSteel Flange URANUS® 35N 23.04 Duplex Stainless Steel Flange with PREN = 24 -:- 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 Flange 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 3744 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