100Cr6 5620 Steel Rod/Bar

Ovako 100Cr6 5620 Steel Rod, Round bar Hot forging Product Information -:- For detailed product information, please contact sales. -: Ovako 100Cr6 5620 Steel Rod, Round bar Hot forging Synonyms -:- For detailed product information, please contact sales. -:

Ovako 100Cr6 5620 Steel, Round bar Hot forging Product Information -:- For detailed product information, please contact sales. -: # **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. -:- For detailed product information, please contact sales. -: 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 -:- For detailed product information, please contact sales. -: Ovako 100Cr6 5620 Steel, Round bar Hot forging Properties -:- For detailed product information, please contact sales. -:

Applications of Ovako 100Cr6 5620 Steel Rod, Round bar Hot forging -:- For detailed product information, please contact sales. -: Chemical Identifiers Ovako 100Cr6 5620 Steel Rod, Round bar Hot forging -:- For detailed product information, please contact sales. -:

Packing of Ovako 100Cr6 5620 Steel Rod, Round bar Hot forging -:- 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 Rod 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