100Cr6 ISO 683-17 (ref) 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 100Cr6 ISO 683-17 (ref) Steel Flange, +A, Round bar Product Information -:- For detailed product information, please contact sales. -: Ovako 100Cr6 ISO 683-17 (ref) Steel Flange, +A, Round bar Synonyms -:- For detailed product information, please contact sales. -:

Ovako 100Cr6 ISO 683-17 (ref) Steel, +A, Round bar Product Information -:- For detailed product information, please contact sales. -: # **Ovako 100Cr6 ISO 683-17 (ref) Steel – +A (Soft Annealed), Round Bar** ## **Product Overview** Ovako 100Cr6 ISO 683-17 (ref) +A is a **high-quality, standard-grade bearing steel** supplied as round bar in a **soft annealed ("+A") condition**, fully conforming to the specifications of the international standard **ISO 683-17**. The **"ref"** designation indicates a **reference-quality material** produced with strict adherence to the standard's chemical and mechanical property limits, serving as a reliable and consistent baseline for general-purpose applications. The soft annealing process produces a **spheroidized carbide microstructure within a ferrite matrix**, providing optimal machinability and a homogeneous foundation for subsequent heat treatment. This product is the fundamental, high-integrity feedstock for manufacturing a wide range of hardened components where premium-grade enhancements are not required. ## **Key Features & Benefits** * **Certified Conformance to ISO 683-17:** Guarantees compliance with the internationally recognized standard for through-hardening bearing steels, ensuring material reliability, traceability, and suitability for global supply chains and quality systems. * **Excellent Machinability:** The soft annealed condition results in a uniform hardness of **~190-220 HB** and a spheroidized carbide structure, offering **superior chip formation, extended tool life, good surface finish, and efficient machining** for cost-effective component production. * **Predictable and Consistent Hardenability:** As a reference-quality material, it exhibits the standard and well-documented hardenability profile of 100Cr6/52100 steel. This allows for reliable prediction of hardness penetration and final properties after quenching and tempering, ensuring consistent batch-to-bust performance. * **Optimal Microstructure for Heat Treatment:** The spheroidize annealed structure minimizes the risk of overheating during austenitizing, promotes uniform carbide dissolution, and reduces the potential for distortion and cracking during quenching, leading to high-quality hardened parts. * **Cost-Effective Versatility:** Represents the most economical yet fully capable grade of Ovako 100Cr6, providing an ideal balance of performance and value for the vast majority of bearing and mechanical component applications that do not require specialized properties like ultra-high cleanliness or guaranteed dimensional stability. ## **International Standards & Designations** This product is defined by and supplied to meet the requirements of the ISO standard. | Region/Standard | Standard Designation | Condition | Ovako Designation | | :--- | :--- | :--- | :--- | | **ISO** | **ISO 683-17: 100Cr6** | Soft Annealed | **100Cr6 ISO 683-17 (ref) +A** | | **EUR (EN)** | **1.3505** (100Cr6) | Equivalent standard. | The "+A" suffix explicitly denotes the **Soft Annealed** delivery condition. | | **USA (AISI/ASTM)** | **52100** | Direct equivalent. | | | **Japan (JIS)** | **SUJ2** | | | ## **Chemical Composition (in accordance with ISO 683-17 - %)** The composition strictly adheres to the limits specified for 100Cr6 in the standard. | Element | Content (%) | Role | | :--- | :--- | :--- | | **Carbon (C)** | 0.98 - 1.10 | Provides the carbon necessary for high-carbon martensite and carbide formation upon hardening. | | **Chromium (Cr)** | 1.35 - 1.60 | Enhances hardenability and promotes the formation of wear-resistant chromium carbides. | | **Manganese (Mn)** | 0.25 - 0.45 | Increases hardenability and contributes to strength. | | **Silicon (Si)** | 0.15 - 0.35 | Acts as a deoxidizer during steelmaking and provides solid solution strengthening. | | **Phosphorus (P)** | ≤ 0.025 | Impurity element; kept at or below the standard maximum limit. | | **Sulfur (S)** | ≤ 0.020 | Impurity element; kept at or below the standard maximum limit. | | **Iron (Fe)** | Balance | | ## **Physical & Mechanical Properties (+A Soft Annealed Condition)** * **Delivery Condition:** **Soft Annealed (+A) Round Bar**. * **Hardness:** **190 - 220 HB** (Typical target: ~205 HB). This range is optimal for machining. * **Microstructure:** **Spheroidized carbides** uniformly distributed in a **ferritic matrix**. The annealing process is controlled to achieve a fine, globular carbide structure. * **Tensile Strength:** ~650 - 800 MPa * **Yield Strength (Rp0.2):** ~400 - 550 MPa * **Elongation (A5):** ≥ 20% * **Machinability:** **Excellent** for the hardness class. ## **Properties After Hardening & Tempering (Typical Process)** Following customer heat treatment: * **Austenitizing:** 830-860°C in a protective atmosphere. * **Quenching:** Oil quench. * **Tempering:** 150-200°C for 1-3 hours. * **Final Hardness:** **60 - 64 HRC** (dependent on tempering temperature). * **Core Properties:** Good wear resistance and contact fatigue strength characteristic of through-hardened 100Cr6. ## **Typical Applications** This versatile annealed bar stock is used to manufacture a wide array of components across industries. * **General Industrial Bearings:** Inner and outer rings, rollers, and balls for ball and roller bearings used in electric motors, gearboxes, and machinery. * **Automotive Components:** Transmission parts, shafts, pins, and various bearing applications. * **Industrial Machinery Parts:** Gears, spindles, arbors, bushings, and tool holders. * **Agricultural & Off-Highway Equipment:** Durable wear parts and bearing components. * **Consumer & General Engineering:** Components for appliances, power tools, and other devices requiring hardened steel. ## **Processing Guidelines** * **Machining:** All machining (turning, milling, drilling, grinding) should be performed in the soft annealed state. * **Heat Treatment (Customer Process):** 1. **Preheating:** Recommended at 650-700°C to minimize thermal stress. 2. **Austenitizing:** Heat to 830-860°C in a controlled atmosphere or vacuum furnace to prevent decarburization. 3. **Quenching:** Agitated oil quench is standard. 4. **Tempering:** Temper immediately after quenching to the desired hardness and for stress relief. Double tempering is recommended. * **Final Grinding:** Perform after hardening to achieve final dimensions and surface finish. ## **Summary** **Ovako 100Cr6 ISO 683-17 (ref) Steel in the +A (Soft Annealed) condition** is the **benchmark for reliable, standard-quality bearing steel feedstock**. By guaranteeing conformance to the ISO 683-17 standard and supplying it in an optimally machinable annealed state, Ovako provides manufacturers with a trustworthy and versatile material foundation. It delivers the proven performance of 100Cr6/52100 steel in a form ready for efficient manufacturing and predictable heat treatment. For applications where a certified, high-quality standard-grade material is specified or sufficient, this product offers an unbeatable combination of performance, consistency, and value. -:- For detailed product information, please contact sales. -: Ovako 100Cr6 ISO 683-17 (ref) Steel, +A, Round bar Specification Dimensions Size： Diameter 20-1000 mm Length <5285 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 100Cr6 ISO 683-17 (ref) Steel, +A, Round bar Properties -:- For detailed product information, please contact sales. -:

Applications of Ovako 100Cr6 ISO 683-17 (ref) Steel Flange, +A, Round bar -:- For detailed product information, please contact sales. -: Chemical Identifiers Ovako 100Cr6 ISO 683-17 (ref) Steel Flange, +A, Round bar -:- For detailed product information, please contact sales. -:

Packing of Ovako 100Cr6 ISO 683-17 (ref) Steel Flange, +A, Round bar -:- 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 1756 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