Sandvik,0C404 Strip Steel Flange

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. -: Sandvik 0C404 Strip Steel Flange Product Information -:- For detailed product information, please contact sales. -: Sandvik 0C404 Strip Steel Flange Synonyms -:- For detailed product information, please contact sales. -:

Sandvik 0C404 Strip Steel Product Information -:- For detailed product information, please contact sales. -: ## **Sandvik 0C404 Strip Steel – High-Performance Hardened and Tempered Spring Steel** ### **Product Overview** Sandvik 0C404 is a premium, oil-hardened and tempered spring steel strip produced with Sandvik's proprietary manufacturing technology. Characterized by its exceptional combination of **high strength, excellent fatigue resistance, and superior dimensional consistency**, 0C404 is engineered for demanding flat spring applications where reliability, precision, and durability are critical. It is supplied in a pre-hardened and tempered condition, ready for fabrication without additional heat treatment by the customer. ### **Key Advantages** * **Consistent High Quality:** Exceptional uniformity in hardness, flatness, and temper across the entire coil length and width. * **Optimal Spring Properties:** Delivers an outstanding balance of tensile strength, yield strength, and elastic limit for superior spring performance. * **Excellent Fatigue Life:** High cleanliness steel and controlled processing result in very good resistance to cyclic loading. * **Good Formability:** In its supplied condition, it allows for bending, coining, and blanking to create complex flat spring shapes. * **Ready-to-Use:** Supplied in final hardened and tempered state, eliminating the need for customer heat treatment and associated distortion risks. ### **Chemical Composition (Typical, wt%)** 0C404 is based on a medium-carbon, low-alloy chromium-vanadium steel composition. | Element | Content (%) | Element | Content (%) | | :--- | :--- | :--- | :--- | | **Carbon (C)** | 0.50 - 0.60 | **Chromium (Cr)** | 0.60 - 0.90 | | **Silicon (Si)** | 0.15 - 0.35 | **Vanadium (V)** | 0.15 - 0.25 | | **Manganese (Mn)** | 0.60 - 0.90 | **Sulfur (S)** | ≤ 0.030 | | **Phosphorus (P)** | ≤ 0.030 | **Iron (Fe)** | Balance | ### **Physical & Mechanical Properties (Typical, as supplied)** * **Density:** 7.85 g/cm³ * **Modulus of Elasticity (E):** 205 GPa * **Tensile Strength (Rm):** 1700 - 2000 MPa * **Yield Strength (Rp0.2):** 1550 - 1850 MPa * **Hardness:** 480 - 540 HV / 49 - 52 HRC * **Elongation (A₅₀):** 3 - 6% * **Fatigue Strength:** Very high, suitable for dynamic applications. **Note:** Mechanical properties are stable up to an operating temperature of approximately **200°C (390°F)**. Exposure to higher temperatures for prolonged periods will lead to tempering and loss of strength. ### **International Standards & Approvals** Sandvik 0C404 is a proprietary grade that corresponds to or exceeds the requirements of several international standards for hardened and tempered spring steel. * **Sandvik Proprietary Grade:** **0C404** * **Similar/Equivalent Standards:** * **DIN / EN:** 1.2234 (51CrV4) * **ASTM:** A682 (Type: Chromium-Vanadium) * **UNS:** G61500 * **ISO:** 683-14: Spring steels * **Industry-Specific Approvals:** Widely used and accepted in automotive, electrical, and precision engineering industries. ### **Product Applications** Sandvik 0C404 is ideally suited for a wide range of critical flat spring components requiring high strength and fatigue resistance: * **Automotive:** * Seat belt retractor springs * Clutch diaphragm springs * Valve spring discs (retainers) * Brake pad wear indicator springs * Various sensor and actuator springs * **Electrical & Electronics:** * High-current electrical contact springs (e.g., in circuit breakers, switches) * Connector springs * Relay components * **Industrial & Consumer Goods:** * Precision lock springs * High-performance saw blades (bandsaw, hacksaw) * Snap-action disc springs (Belleville washers) * Agricultural machinery springs * Tooling components (e.g., springs in jigs and fixtures) * **General Engineering:** * Flat springs for constant load applications * Complex-stamped spring components ### **Processing Guidelines** * **Forming:** Can be stamped, blanked, and bent in the supplied condition. Tooling must be designed for high-strength materials. Stress-relief annealing (at ~300°C) after severe forming may be recommended for critical applications. * **Machining:** Possible with carbide tools; grinding is the preferred method for precise finishing. * **Surface Treatment:** Readily accepts standard coatings such as phosphating, zinc plating, or painting. For corrosion protection, cadmium or zinc-nickel plating is common. * **Joining:** Can be spot welded or projection welded with appropriate parameters. ### **Availability** Sandvik 0C404 is available as cold-rolled strip with precise dimensional tolerances. * **Thickness:** Typically 0.10 mm to 3.0 mm (custom ranges possible) * **Width:** Up to 330 mm (standard mill capability) * **Condition:** Hardened and Tempered (H&T), bright finish or with protective coating. * **Packaging:** Coils or straight lengths, tailored to customer needs. --- **Important Technical Note:** For design and process validation, it is essential to consult the latest Sandvik technical datasheets and work with their application engineers. They can provide specific property data for your thickness, recommend optimal fabrication processes (like bending radii), and confirm suitability for your application's exact loading and environmental conditions. -:- For detailed product information, please contact sales. -: Sandvik 0C404 Strip Steel Specification Dimensions Size： Diameter 20-1000 mm Length <7440 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. -: Sandvik 0C404 Strip Steel Properties -:- For detailed product information, please contact sales. -:

Applications of Sandvik 0C404 Strip Steel Flange -:- For detailed product information, please contact sales. -: Chemical Identifiers Sandvik 0C404 Strip Steel Flange -:- For detailed product information, please contact sales. -:

Packing of Sandvik 0C404 Strip Steel Flange -:- 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 3911 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