CBS-600 Carburizing Bearing and Gear 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. -: CBS-600 Carburizing Bearing and Gear Steel Flange Product Information -:- For detailed product information, please contact sales. -: CBS-600 Carburizing Bearing and Gear Steel Flange Synonyms -:- For detailed product information, please contact sales. -:

CBS-600 Carburizing Bearing and Gear Steel Product Information -:- For detailed product information, please contact sales. -: ### **Product Datasheet: CBS-600 Carburizing Bearing and Gear Steel** --- #### **1. Material Overview** **CBS-600** is a **high-performance, low-alloy carburizing steel** specifically engineered for **critical bearing and gear applications**. The designation typically suggests a proprietary or specialized grade optimized for deep **case hardening** via carburizing, followed by quenching and tempering. It is designed to produce components with an **extremely hard, wear-resistant surface case (typically 58-64 HRC)** over a **tough, ductile, and shock-resistant core (typically 30-45 HRC)**. This combination makes it ideal for applications subjected to high contact stresses, rolling/sliding wear, and significant impact or bending loads, such as large bearings, heavy-duty gears, and transmission components. #### **2. Key Material Concept: Optimized for Carburizing Performance** CBS-600 is formulated to excel in the carburizing process, offering advantages over standard carburizing grades (e.g., SAE 8620, 9310): - **Core Toughness:** A carefully balanced low-carbon alloy composition ensures the core develops high strength and exceptional toughness after heat treatment, providing resistance to tooth bending fatigue and shock loading. - **Hardenability Control:** Alloying elements (Ni, Cr, Mo) are optimized to provide sufficient hardenability for the core to transform to a strong, tough microstructure (e.g., tempered martensite or bainite) in large cross-sections, while allowing controlled case hardenability to prevent excessive retained austenite or brittle carbides at the surface. - **Carburizing Response:** The chemistry promotes rapid and uniform carbon diffusion during carburizing, allowing for efficient cycle times and consistent case depth. It also resists intergranular oxidation and maintains fine grain size at carburizing temperatures. - **Dimensional Stability:** Designed to minimize distortion during the carburizing and quenching processes, which is critical for precision gears and bearings. #### **3. International Standard & Cross-References** CBS-600 is likely a **proprietary or trade name** from a specific steel producer or bearing manufacturer (e.g., possibly associated with **The Timken Company** or similar). It does not correspond directly to a common AISI/SAE or EN standard. - **Closest Standard Equivalents:** Its performance targets are similar to premium grades like: - **SAE 4320 / 4320H** (Ni-Cr-Mo steel with good core toughness) - **SAE 8620 / 8620H** (Most common general carburizing steel) - **SAE 9310 / 9310H** (High-Ni gear steel for maximum core toughness) - **DIN 1.6562 / 1.6523 / 1.6657** (e.g., 18CrNiMo7-6, 23MnCrMo5-2) - **"H" Grade Implication:** If available as CBS-600H, it would indicate a **hardenability-controlled version** per standards like ASTM A304. #### **4. Typical Chemical Composition (% by Weight)** *Based on the nomenclature and intended use, a typical composition might be:* | Element | Estimated Range (%) | Key Role in Carburizing | | :--- | :--- | :--- | | **Carbon (C)** | **0.15 – 0.25** | Low core carbon for toughness; provides carbon for diffusion into the case. | | **Manganese (Mn)** | **0.50 – 0.90** | Enhances hardenability and core strength. | | **Silicon (Si)** | **0.15 – 0.35** | Deoxidizer; can be controlled to minimize oxidation during carburizing. | | **Nickel (Ni)** | **0.40 – 1.00** | **Key for core toughness.** Improves low-temperature impact strength and fatigue resistance. | | **Chromium (Cr)** | **0.40 – 1.00** | Enhances case hardenability, wear resistance, and promotes fine carbides in the case. | | **Molybdenum (Mo)** | **0.15 – 0.30** | **Critical.** Increases hardenability (especially core), refines grain, improves high-temperature strength during carburizing, and enhances temper resistance. | | **Sulfur (S)** | **≤ 0.030** | Kept low for optimal transverse properties. | | **Boron (B)** | **May be present** | Trace addition to significantly boost core hardenability cost-effectively. | #### **5. Typical Physical & Mechanical Properties** **A. Physical Properties (Core):** - **Density:** ~7.85 g/cm³ - **Modulus of Elasticity:** ~205 GPa - **Core Hardness (After Heat Treat):** 30-45 HRC (adjustable via tempering) **B. Achieved Properties After Carburizing & Heat Treatment:** - **Surface Case Hardness:** **58 – 64 HRC** - **Effective Case Depth (at 550 HV / 50 HRC):** Typically 0.5mm to 2.5mm+, depending on cycle. - **Core Tensile Strength:** **900 – 1200 MPa** (130 – 174 ksi) - **Core Yield Strength:** **700 – 1000 MPa** (102 – 145 ksi) - **Core Impact Toughness (Charpy V-notch):** **40 – 80 J** (30 – 59 ft-lb) – **Excellent for a hardened component.** - **Surface Compressive Residual Stress:** High, contributing to superior fatigue resistance. - **Bending Fatigue Strength:** Exceptional. - **Contact Fatigue (Pitting) Resistance:** Excellent due to hard case and supportive core. #### **6. Processing & Heat Treatment Characteristics** - **Carburizing:** Typically performed via **gas carburizing** or **low-pressure carburizing (LPC)** at 900-950°C. The steel exhibits good carbon uptake and profile control. - **Quenching:** After carburizing, quenched in **oil** (for moderate sections) or **high-pressure gas** (for minimal distortion). The alloy design supports deep hardening of the core. - **Tempering:** Low-temperature tempering (150-200°C) is used to relieve stresses while maintaining high case hardness. - **Sub-Zero Treatment:** Often applied to transform retained austenite in the case for maximum hardness and dimensional stability. - **Machinability (Pre-Carburize):** Good in the annealed or normalized condition. - **Weldability:** Fair with precautions (preheat, PWHT), but welding after carburizing is not recommended. #### **7. Primary Applications** CBS-600 is specified for the most demanding carburized components: - **Large-Scale Rolling Element Bearings:** **Wind turbine main shaft bearings, large industrial spherical roller bearings, and slewing rings** for cranes and excavators. - **Heavy-Duty & Aerospace Gearing:** **Planetary gear sets for wind turbines, main transmission gears for helicopters, heavy mining truck differential gears, and high-performance racing gearbox gears.** - **Critical Automotive Components:** **High-load differential pinions and ring gears, transmission shafts, and powertrain components** for off-highway and performance vehicles. - **Oil & Gas Drilling Components:** **Large bearing races and heavily loaded gears** in drilling rigs and mud pumps. - **Defense Applications:** **Track drive sprockets, turret drive gears, and other armored vehicle components.** #### **8. Available Forms & Quality** - **Forms:** **Forged blanks, rolled bars, and pre-machined rings** are common, supplied in the annealed or normalized condition for machining. - **Quality:** Expected to be supplied as **"Bearing Quality"** or **"Gear Quality"** with strict controls on non-metallic inclusions, macro-etch quality, and hardenability consistency. Ultrasonic testing is standard for large forgings. #### **9. Comparison with Common Carburizing Grades** | Grade | Typical Core Toughness | Typical Case Hardness | Hardenability | Primary Application Focus | | :--- | :--- | :--- | :--- | :--- | | **SAE 8620** | Good | 58-62 HRC | Moderate | General-purpose gears, small bearings. | | **SAE 9310** | **Excellent** | 58-62 HRC | High | Aerospace gears, high-integrity gears. | | **CBS-600 (Proprietary)** | **Very Good to Excellent** | **58-64 HRC** | **High & Optimized** | **Large bearings & heavy-duty gears requiring optimal case/core balance.** | --- **Disclaimer:** **CBS-600 is likely a proprietary grade.** The information provided is a composite based on the performance implied by its nomenclature and application. **Exact chemical composition, guaranteed properties, and processing guidelines must be obtained from the specific steel supplier or component manufacturer.** This grade represents a premium, application-engineered material where the cost is justified by extended service life, reliability, and performance in extreme conditions. It is not a general-purpose steel. -:- For detailed product information, please contact sales. -: CBS-600 Carburizing Bearing and Gear Steel Specification Dimensions Size： Diameter 20-1000 mm Length <5200 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. -: CBS-600 Carburizing Bearing and Gear Steel Properties -:- For detailed product information, please contact sales. -:

Applications of CBS-600 Carburizing Bearing and Gear Steel Flange -:- For detailed product information, please contact sales. -: Chemical Identifiers CBS-600 Carburizing Bearing and Gear Steel Flange -:- For detailed product information, please contact sales. -:

Packing of CBS-600 Carburizing Bearing and Gear 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 1671 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