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."
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Ovako 100Cr6 5620 Steel Flange, Round bar Hot forging Product Information
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Ovako 100Cr6 5620 Steel Flange, Round bar Hot forging Synonyms
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Ovako 100Cr6 5620 Steel, Round bar Hot forging Product Information
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# **Ovako 100Cr6 5620 Steel – Hot Forging Round Bar**
## **Product Overview**
Ovako 100Cr6 5620 is a premium-grade **hot-forging quality bearing steel** supplied as round bar, specifically engineered for the production of high-integrity forged components. The **"5620"** designation represents Ovako's internal quality standard for a forging-optimized variant of the classic 100Cr6 (AISI 52100) alloy, characterized by **enhanced internal soundness, consistent hardenability, and superior forgeability**. This steel is produced under controlled conditions to ensure a homogeneous microstructure with minimal segregation, making it the ideal feedstock for demanding closed-die forging applications that require subsequent heat treatment to achieve high strength and wear resistance.
## **Key Features & Benefits**
* **Optimized for Hot Forging:** The steel chemistry and production process are tailored to provide excellent **hot workability**, allowing for complex die filling, uniform material flow, and reduced risk of forging defects such as laps or cracks, even in intricate part geometries.
* **Superior Internal Soundness:** Produced with a focus on **low levels of non-metallic inclusions and minimized centerline segregation**, 5620-grade bar stock ensures the internal quality necessary for forged components subjected to high dynamic and contact stresses, where internal defects could initiate premature fatigue failure.
* **Consistent & Predictable Hardenability:** The uniform chemical composition and microstructure guarantee a reliable and predictable response to subsequent quenching and tempering operations. This ensures that forged parts achieve **uniform through-hardness and mechanical properties** after heat treatment, which is critical for performance consistency.
* **Good Machinability After Annealing:** Following forging and appropriate annealing (typically spheroidize annealing), the material offers good machinability for near-net-shape finishing, allowing for efficient production of precision components.
* **Proven Reliability for Critical Parts:** As a specialized forging grade from Ovako, it provides a trusted material foundation for manufacturing safety-critical and high-performance components across automotive, industrial, and off-highway sectors.
## **International Standards & Designations**
This product is Ovako's forging-quality version of standard bearing steel specifications.
| Region/Standard | Standard Designation | Equivalent / Similar Grade | Key Characteristic |
| :--- | :--- | :--- | :--- |
| **EUR (EN)** | **1.3505** (100Cr6) | Base material standard. | Hot forging quality variant. |
| **ISO** | **ISO 683-17: 100Cr6** | Standard for through-hardening bearing steel. | Forging stock quality. |
| **USA (AISI/ASTM)** | **52100 (Forging Quality)** | Often designated as "52100 FQ" or simply as forging stock. | |
| **Japan (JIS)** | **SUJ2 (Forging)** | | |
| **Germany (DIN / W-Nr.)** | **100Cr6 / 1.3505 (RR)** | "RR" (Rundstahl für Reifung) may indicate forging bar. | |
| **Ovako Designation** | **5620** | Denotes Ovako's specific quality level for hot forging round bars of 100Cr6. | |
## **Chemical Composition (Typical - %)**
The composition adheres to strict 100Cr6 limits, optimized for forging performance.
| Element | Content (%) | Role in Hot Forging & Final Properties |
| :--- | :--- | :--- |
| **Carbon (C)** | 0.98 - 1.10 | Provides the basis for high hardness after heat treatment. Uniform distribution is critical for consistent forgeability and hardenability. |
| **Chromium (Cr)** | 1.35 - 1.60 | Enhances hardenability and promotes the formation of wear-resistant carbides in the final part. |
| **Manganese (Mn)** | 0.25 - 0.45 | Increases hardenability and acts as a deoxidizer. Content controlled to ensure good hot ductility. |
| **Silicon (Si)** | 0.15 - 0.35 | Strong deoxidizer, improves strength. |
| **Phosphorus (P)** | ≤ 0.020 | Impurity; kept low to maintain good hot ductility and final toughness. |
| **Sulfur (S)** | ≤ 0.015 | Impurity; controlled level. May be slightly higher than in vacuum-degassed grades but kept in check to ensure forgeability and adequate transverse properties. |
| **Iron (Fe)** | Balance | |
## **Physical & Mechanical Properties (As-Supplied Forging Bar)**
* **Supply Condition:** **Hot-rolled or peeled/rough-turned round bar**, typically in a **soft-annealed or as-rolled condition** suitable for hot forging.
* **Typical Hardness (As-Supplied):** ≤ 255 HB (to facilitate shearing/sawing and uniform heating for forging).
* **Microstructure:** Ferritic-pearlitic or spheroidized, designed for optimal hot working.
* **Ultrasonic Testing:** Can be supplied with specific ultrasonic cleanliness requirements per customer agreement to ensure internal quality for critical forgings.
## **Forging & Subsequent Processing Guidelines**
* **Heating for Forging:**
* **Preheat:** Heat uniformly to **750-850°C**.
* **Forging Temperature Range:** **1050 - 1150°C**.
* **Finishing Temperature:** Do not forge below **850°C** to avoid cracking and excessive grain refinement that may be difficult to normalize later.
* **Post-Forging Heat Treatment (Essential):**
1. **Normalizing:** Recommended, especially for complex or heavy forgings, to refine the grain structure distorted during forging. Heat to **850-900°C**, air cool.
2. **Spheroidize Annealing:** Required to produce a soft, machinable structure with globular carbides. Typically heated to ~770-790°C, held, then slowly cooled.
* **Final Machining & Heat Treatment:** After annealing, the component is machined to near-net shape, then undergoes final **hardening (austenitizing at 830-860°C, oil quench) and tempering (150-200°C)** to achieve 60-64 HRC.
## **Typical Applications (Forged Components)**
This material is used to forge a wide range of high-strength, wear-resistant components.
* **Automotive & Truck Components:** Crankshafts, bearing rings, CV joint components, gear blanks, and hub units.
* **Industrial Machinery Parts:** Gears, shafts, rollers, spindles, and heavy-duty connecting rods.
* **Agricultural & Construction Equipment:** Driveline components, pivot pins, and wear parts.
* **Wind Energy Components:** Blade bearing race blanks and other critical forged parts.
## **Summary**
**Ovako 100Cr6 5620 Steel as Hot Forging Round Bar** is a **specialized, high-quality feedstock** designed for manufacturers who require a reliable and forgeable version of 100Cr6/52100. Its controlled chemistry and focus on internal soundness make it an excellent choice for producing durable, high-performance forged components that will later be heat-treated to achieve maximum hardness and wear resistance. By selecting 5620-grade bar, forgers gain a material that offers consistent behavior during the forging process and provides a solid foundation for the final component's demanding service life.
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Ovako 100Cr6 5620 Steel, Round bar Hot forging Specification
Dimensions
Size:
Diameter 20-1000 mm Length <5283 mm
Size:We can customized as required
Standard:
Per your request or drawing
We can customized as required
Properties(Theoretical)
Chemical Composition
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Ovako 100Cr6 5620 Steel, Round bar Hot forging Properties
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Applications of Ovako 100Cr6 5620 Steel Flange, Round bar Hot forging
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Chemical Identifiers Ovako 100Cr6 5620 Steel Flange, Round bar Hot forging
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Packing of Ovako 100Cr6 5620 Steel Flange, Round bar Hot forging
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Standard Packing:
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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 1754 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