Ovako C55 056K 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. -: Ovako C55 056K Steel Flange, Hardening Product Information -:- For detailed product information, please contact sales. -: Ovako C55 056K Steel Flange, Hardening Synonyms -:- For detailed product information, please contact sales. -:

Ovako C55 056K Steel, Hardening Product Information -:- For detailed product information, please contact sales. -: # **Product Introduction: Ovako C55 056K Steel, Hardening Quality** **Ovako C55 056K** is a high-carbon, high-hardness grade engineered steel produced by Ovako, specifically designed for applications requiring maximum surface hardness and wear resistance. The "C55" designation indicates a higher carbon content than standard C45 grades, while "056K" is Ovako's proprietary classification for a quality of steel optimized for hardening processes. This grade is formulated to achieve exceptional hardness levels after heat treatment, making it ideal for components subjected to severe abrasion, rolling contact, or high surface pressure. This steel is typically supplied in a soft-annealed or spheroidized condition to facilitate machining, after which it undergoes final hardening (quenching) and tempering. Its primary value lies in its ability to reach and maintain a high hardness (typically 55-62 HRC), providing outstanding resistance to wear and deformation under heavy mechanical stress. --- ## **1. Chemical Composition (Ovako 056K Specification)** The composition features elevated carbon and manganese levels to achieve high hardenability and ultimate hardness potential. | Element | Carbon (C) | Silicon (Si) | Manganese (Mn) | Phosphorus (P) | Sulfur (S) | Chromium (Cr) | **Hardening Focus** | | :--- | :--- | :--- | :--- | :--- | :--- | :--- | :--- | | **Range** | 0.52 - 0.58 | 0.15 - 0.40 | 0.60 - 0.90 | **≤ 0.025** | **≤ 0.020** | 0.20 - 0.40 | **High Carbon + Mn/Cr for deep hardenability.** | | **Key Role** | **Primary hardness & wear resistance driver.** | Deoxidizer, solid solution strengthener. | Enhances hardenability & strength. | **Ultra-low for toughness.** | **Very low for isotropic properties.** | Boosts hardenability & wear resistance. | | **Critical Features for Hardening:** * **High Carbon Content (0.52-0.58%):** This is the defining characteristic, enabling the formation of a high volume of hard martensite and carbides during quenching, leading to **very high attainable hardness (up to ~65 HRC as-quenched)**. * **Enhanced Hardenability Package:** The combination of high Carbon, Manganese, and controlled Chromium ensures sufficient hardenability to achieve this high hardness in larger cross-sections than a plain carbon steel could. * **High Purity:** The very low phosphorus and sulfur levels are critical. They minimize the risk of quench cracking, improve core toughness beneath the hard surface, and ensure more uniform hardening response. * **"K" Quality Designation:** Implies a guaranteed level of consistency and suitability for hardening processes, often with controlled grain size and inclusion morphology. --- ## **2. Physical & Mechanical Properties** Properties are defined for the supplied (machinable) condition and the final hardened & tempered state. **A. Supplied Condition (Soft Annealed/Spheroidized):** * **Hardness:** **≤ 212 HB** (Typically 180-200 HB). * **Microstructure:** Spheroidized carbide in a ferritic matrix. * **Machinability:** **Fair to Good.** The soft, spheroidized structure allows for machining, though the higher carbon content makes it tougher to cut than C45. Good tool life and surface finish are achievable with correct parameters. * **Purpose:** To allow for the precision machining of complex components before they become extremely hard and difficult to work. **B. After Quenching & Tempering (Final Hardened State):** * **Surface/Core Hardness:** **55 - 62 HRC** (Typical working range after tempering). Can achieve up to ~65 HRC as-quenched. * **Tensile Strength (Rm):** **1800 - 2200+ MPa** (Correlates with high hardness). * **Yield Strength (Rp0.2):** **1500 - 1800+ MPa**. * **Compressive Strength:** Extremely high. * **Elongation (A) & Impact Toughness (KV):** **Very Low.** This is a **hard and wear-resistant steel, not a tough steel**. Its core toughness is limited by the high carbon content. * **Wear Resistance:** **Excellent.** Its primary performance characteristic. --- ## **3. Product Applications** Ovako C55 056K is specified for **components where extreme wear resistance and high hardness are the paramount design requirements**, and where high toughness is not a primary need. * **Tooling & Wear Parts:** **Blanking dies, forming dies, punches, shear blades, and wear plates.** * **Automotive Components:** **High-performance valve train components (tappets, rocker arms), clutch components, and heavy-duty bearing races.** * **Industrial Machinery:** **Camshafts, guide rollers, feed rolls, and anvils** in high-wear environments. * **Agriculture & Mining:** **Cutter blades, tiller points, and crusher wear parts.** * **Measurement & Precision:** **Gauge blocks, master gears, and linear guide components** requiring dimensional stability and wear resistance. --- ## **4. International & Equivalent Standards** This is a proprietary, high-carbon engineering steel. Its closest equivalents are other high-carbon grades for hardening. | Standard System | Equivalent / Comparable Grade | **Relationship / Note** | | :--- | :--- | :--- | | **Ovako Specification** | **C55 056K** | The exact product. | | **EN 10083-2** | **1.1206 (C55E)** | The direct European standard for a through-hardening C55 grade. Ovako 056K is a controlled-quality version of this. | | **DIN** | **1.1206 (Ck55)** | Historical German equivalent. | | **AISI/SAE** | **1055 / 1060** | The closest U.S. equivalents in terms of carbon content. The hardenability may differ due to Mn/Cr levels. | | **JIS G4801 (Spring Steel)** | **SUP3 / SUP4** | Similar high-carbon, high-Mn steels used for springs and wear parts. Not a direct match. | | **Tool Steel Comparison** | Similar to low-alloy **AISI O1/O2** or **DIN 1.2842** in application for wear parts, but typically lower alloy content. | | **Key Distinction:** **C55 056K is a high-carbon engineering steel, not a tool steel.** It offers a more cost-effective solution for wear applications that do not require the extreme hot hardness or toughness of dedicated tool steels (like D2, A2). Its "056K" specification ensures it is produced with the consistency needed for reliable hardening of precision parts. --- ## **5. Key Advantages & Considerations** **Advantages:** * **Exceptional Hardness & Wear Resistance:** Capable of reaching the upper echelons of hardness for non-tool steels, providing outstanding life in abrasive environments. * **Good Hardenability:** The Mn/Cr additions allow for effective through-hardening of moderate sections, avoiding a soft core. * **Machinable in Annealed State:** Can be precision-machined to complex shapes before the final, irreversible hardening step. * **High Dimensional Stability:** With proper heat treatment (e.g., martempering), it can exhibit minimal distortion during hardening. **Considerations:** * **Low Toughness & Ductility:** **Inherently brittle** in the hardened state. Susceptible to chipping or fracture under impact or high tensile stress concentrations. * **High Risk of Quench Cracking:** The high carbon content makes it very sensitive to thermal shock during quenching. Strict control of quenching medium, temperature, and part geometry is essential. * **Poor Weldability:** **Generally not weldable** in the hardened state. Any welding must be done prior to hardening using specialized procedures. * **Limited Application Scope:** Should only be used where high surface pressure or wear is the dominant failure mode, not where shock loading is expected. --- **Disclaimer:** The successful application of Ovako C55 056K is **highly dependent on precise and controlled heat treatment.** Improper quenching can lead to cracking or inadequate hardness. **Always consult Ovako's technical datasheets for the 056K grade and engage with experienced heat treatment specialists** to define the optimal austenitizing temperature, quenching medium (often oil or hot salt), and tempering cycle. The material should be specified for the **annealed condition** if machining is required. -:- For detailed product information, please contact sales. -: Ovako C55 056K Steel, Hardening Specification Dimensions Size： Diameter 20-1000 mm Length <5089 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. -: Ovako C55 056K Steel, Hardening Properties -:- For detailed product information, please contact sales. -:

Applications of Ovako C55 056K Steel Flange, Hardening -:- For detailed product information, please contact sales. -: Chemical Identifiers Ovako C55 056K Steel Flange, Hardening -:- For detailed product information, please contact sales. -:

Packing of Ovako C55 056K Steel Flange, Hardening -:- 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 1560 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