Schmolz + Bickenbach,Cryodur® 2363 (A-2) Cold Work Die 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. -: Schmolz + Bickenbach Cryodur® 2363 (A-2) Cold Work Die Steel Flange Product Information -:- For detailed product information, please contact sales. -: Schmolz + Bickenbach Cryodur® 2363 (A-2) Cold Work Die Steel Flange Synonyms -:- For detailed product information, please contact sales. -:

Schmolz + Bickenbach Cryodur® 2363 (A-2) Cold Work Die Steel Product Information -:- For detailed product information, please contact sales. -: # **SCHMOLZ + BICKENBACH Cryodur® 2363 (A-2) | Premium Medium-Alloy Air-Hardening Cold Work Tool Steel** ## **Overview** SCHMOLZ + BICKENBACH **Cryodur® 2363** is a high-quality, medium-alloy, chromium-molybdenum-vanadium cold work tool steel corresponding to the AISI A2 (DIN 1.2363) classification. Renowned as one of the most versatile and widely used cold work steels, it offers an **excellent balance of wear resistance, toughness, dimensional stability, and air-hardening capability**. The "Cryodur®" designation signifies production to stringent quality standards, ensuring consistent microstructure and predictable performance. A-2 type steels are characterized by their good through-hardenability with minimal distortion, making them suitable for intricate tools and dies requiring precision and reliability in demanding production environments. ## **Key Features:** * **Excellent Balance of Wear Resistance & Toughness:** Provides superior wear resistance compared to oil-hardening O-series steels, while maintaining significantly better toughness than high-carbon, high-chromium D-series steels. * **Deep Air-Hardening:** Exhibits excellent hardenability, allowing uniform through-hardening of substantial sections with minimal distortion and low risk of cracking, due to its air-quenching nature. * **Good Dimensional Stability:** Minimal size change and predictable behavior during heat treatment enable the manufacture of precision tools with tight tolerances. * **Good Machinability:** In the properly annealed condition, offers reasonable machinability for its alloy content. * **Good Grindability:** Responds well to grinding operations, allowing for precise finishing and sharp cutting edges. * **Good Resistance to Tempering:** Maintains hardness adequately during service, with useful properties retained up to approximately 400-450°C. * **Versatility:** Suitable for a very broad range of cold work applications, from blanking and forming to gauges and machine components. --- ## **Material Specifications: Cryodur® 2363 (A-2)** ### **1. Chemical Composition (wt%)** | Element | Content Range (wt%) | Function & Metallurgical Benefit | | :--- | :--- | :--- | | **Carbon (C)** | 0.95 - 1.05 | Provides high matrix hardness and forms carbides for wear resistance. The level is optimized for the balance of properties. | | **Manganese (Mn)** | 0.40 - 0.70 | Aids in deoxidation and enhances hardenability. | | **Silicon (Si)** | 0.15 - 0.40 | Deoxidizer and strengthens the ferrite matrix. | | **Chromium (Cr)** | 4.80 - 5.50 | **Primary alloying element.** Provides deep hardenability, contributes significantly to wear resistance via chromium carbides (M₇C₃), and improves corrosion resistance slightly. | | **Molybdenum (Mo)** | 0.90 - 1.20 | Enhances hardenability (especially in larger sections), improves toughness, and increases resistance to tempering. | | **Vanadium (V)** | 0.15 - 0.35 | Forms hard, fine vanadium carbides (MC type) that improve wear resistance and help refine the grain size during heat treatment. | | **Sulfur (S)** | ≤ 0.005 | Very low for optimal transverse toughness and polishability. | | **Phosphorus (P)** | ≤ 0.015 | Minimized to prevent embrittlement. | **Metallurgical Characteristics:** The Cr-Mo-V balance provides a fine dispersion of mixed carbides (primarily M₇C₃ with some MC) in a hardened martensitic matrix. This structure delivers the characteristic A2 balance: better wear resistance than simpler oil-hardening steels (like O1) due to higher carbide volume, and better toughness than higher-carbon, higher-alloy steels (like D2) due to a less massive carbide network. ### **2. Physical & Mechanical Properties** #### **Properties in Annealed Condition:** * **Hardness:** ~210-240 HB * **Microstructure:** Spheroidized carbides in ferritic matrix. * **Machinability:** Fair to Good (for its hardness and alloy content). #### **Properties in Hardened & Tempered Condition:** | Tempering Temperature | Resulting Hardness (HRC) | 0.2% Yield Strength (MPa) | Tensile Strength (MPa) | Impact Toughness (Charpy V, J) | | :--- | :--- | :--- | :--- | :--- | | **150-200°C** | 61 - 63 | ~2150 - 2350 | ~2350 - 2550 | 8 - 14 | | **250-300°C** | 60 - 62 | ~2050 - 2250 | ~2250 - 2450 | 10 - 16 | | **400-450°C** | 58 - 60 | ~1850 - 2050 | ~2050 - 2250 | 14 - 22 | | **500-550°C** | 55 - 57 | ~1650 - 1850 | ~1850 - 2050 | 20 - 30 | **Typical Service Condition:** For a balance of wear resistance and toughness, tempering at **400-450°C to 58-60 HRC** is extremely common. For maximum wear resistance where toughness is less critical, tempering at **180-200°C to 61-63 HRC** is used. #### **Physical Properties:** * **Density:** ~7.80 g/cm³ * **Thermal Conductivity:** ~30 W/m·K (at 20°C) * **Coefficient of Thermal Expansion:** 11.5 x 10⁻⁶ /K (20-100°C) * **Modulus of Elasticity:** 210 GPa * **Specific Heat Capacity:** ~460 J/kg·K #### **Comparative Positioning:** | Property | Cryodur® 2363 (A2) | O1 (Oil-Hardening) | D2 (High-Cr) | S7 (Shock-Resisting) | | :--- | :--- | :--- | :--- | :--- | | **Typical Hardness** | 58-62 HRC | 58-62 HRC | 58-62 HRC | 55-59 HRC | | **Wear Resistance** | **Very Good** | Good | **Excellent** | Good | | **Toughness** | Good | Good | Fair | **Excellent** | | **Dimensional Stability** | **Excellent (Air-Harden)** | Fair (Oil-Harden) | Very Good | Excellent | | **Distortion** | **Low** | Medium-High | Low | Low | ### **3. Machining & Finishing** * **Machining (Annealed):** Fair to Good. Use positive geometry carbide tools with moderate speeds/feeds. It is more demanding to machine than O1 due to higher alloy content and initial hardness. * **Grinding:** Good. Standard aluminum oxide wheels perform well. The material is generally considered to have good grindability for a high-hardness tool steel. * **EDM:** Suitable and commonly used. Both wire and sinker EDM perform well. * **Polishing:** Good. Can achieve fine finishes, though achieving a perfect mirror polish is more challenging than with more homogeneous steels like D2 (due to carbide size/distribution). * **Welding:** **Possible but requires great caution.** High crack sensitivity. Requires thorough preheating (400-450°C), use of low-hydrogen matching electrodes (A2 type), slow cooling, and immediate post-weld tempering. Generally avoided for critical tool edges. --- ## **International Standards & Cross-References** | Standard | Designation | Note | | :--- | :--- | :--- | | **SCHMOLZ + BICKENBACH** | **Cryodur® 2363** | Proprietary brand name for premium quality. | | **DIN / EN / W-Nr.** | **1.2363** | | | **AISI / ASTM** | **A2** | | | **ISO 4957** | **X100CrMoV5-1** | | | **Uddeholm** | **ARNE** (equivalent to A2) | | | **Böhler / voestalpine** | **K110** (Equivalent to D2) / **A200** (for A2) | Note: K110 is D2 (1.2379), which is different. A200 is Böhler's A2. | | **Japanese (JIS)** | **SKD12** | Common JIS equivalent for A2. | | **Chinese (GB)** | **Cr5Mo1V** | | --- ## **Heat Treatment Guidelines** 1. **Soft Annealing:** Heat to 840-870°C, hold sufficiently (e.g., 2h/25mm), slow cool in furnace to 600°C (approx. 15°C/hour), then air cool. Target: ≤ 240 HB. 2. **Stress Relieving (after rough machining):** 600-650°C for 2 hours, slow cool. 3. **Preheating:** Essential. Preheat at 500-550°C and 800-850°C to minimize thermal shock and distortion. 4. **Austenitizing (Hardening):** * **Temperature:** **940-970°C.** Commonly used range is 950-960°C. Use controlled atmosphere or vacuum. * **Soak Time:** 20-40 minutes per 25mm of ruling section. Avoid excessive time at temperature. 5. **Quenching:** In **still or forced air.** This is the standard method. For complex shapes or very large masses, **high-pressure gas quenching** in a vacuum furnace is ideal to minimize distortion. **Oil quenching is possible but increases distortion and cracking risk significantly and is not recommended for precision tools.** 6. **Tempering:** * **Must be performed immediately** after quenching (when parts reach 50-80°C). * **Temperature:** As per required final properties (see table above). **400-450°C is most common for general purpose.** * **Double tempering is strongly recommended.** Hold for at least 2 hours per temper, air cool to room temperature between tempers. * **Cryogenic Treatment:** Optional but beneficial. A deep freeze treatment (-80°C to -120°C) between the first and second temper can convert retained austenite, improving dimensional stability and slightly increasing hardness. --- ## **Product Applications** Cryodur® 2363 (A-2) is one of the most **versatile and widely applied cold work tool steels**, suitable for a vast array of applications where a balance of wear resistance, toughness, and stability is required. **Primary Application Areas:** **A. Blanking, Shearing, and Punching Dies:** * **Progressive Dies** for medium-to-high production runs. * **Fineblanking Dies.** * **Punches and Dies** for sheet metal of moderate thickness and strength. * **Shear Blades** and **Slitter Knives** for metal coils. * **Lamination Dies** for electrical steels. **B. Forming, Bending, and Drawing Tools:** * **Forming Rolls** and **Bending Dies.** * **Drawing Dies** for wires, rods, and tubes. * **Cold Extrusion Punches and Dies** for less severe applications. * **Swaging Tools.** **C. Gauges, Fixtures, and Machine Components:** * **Master Gauges**, **Ring Gauges**, and **Plug Gauges** requiring wear resistance and dimensional stability. * **Jigs and Fixtures** subject to wear. * **Liners**, **Bushings**, and **Wear Plates.** * **Cams** and **Rollers.** **D. Knives and Blades:** * **Industrial Knives** for cutting paper, cardboard, textiles, and plastics. * **Slitter Knives** for non-ferrous metals. **E. Plastic Molds (Secondary Application):** * **Injection Mold Inserts** for abrasive plastics (e.g., glass-filled) where higher wear resistance than P20 is needed, but full stainless (1.2083/1.2316) corrosion resistance is not required. * **Ejector Pins** and **Sleeves** in abrasive environments. **Typical Components:** * Punch and die sets for automotive parts * Thread rolling dies * Forming inserts for appliance manufacturing * Wear components in assembly machinery **When to Choose A-2 / Cryodur® 2363:** Select this grade as the **versatile "workhorse"** for cold work tooling when: 1. **Wear is a significant concern**, but not so extreme as to require D2. 2. **Good toughness** is needed to prevent chipping or breakage. 3. **Minimal distortion during heat treatment** is critical for precision tools. 4. The application does not involve **severe impact** (choose S7) or **extreme abrasion** (consider D2 or a particle metallurgy grade). 5. A balance of performance, cost, and process reliability is desired. --- **Disclaimer:** The information provided is based on typical data for SCHMOLZ + BICKENBACH Cryodur® 2363. Properties can vary within specification ranges and are highly dependent on precise heat treatment, especially austenitizing temperature and tempering cycle. This document is for informational purposes only and does not constitute a guarantee. For critical applications, always consult the official manufacturer's technical documentation. A2's popularity stems from its excellent all-around performance, but proper heat treatment is key to achieving its potential. -:- For detailed product information, please contact sales. -: Schmolz + Bickenbach Cryodur® 2363 (A-2) Cold Work Die Steel Specification Dimensions Size： Diameter 20-1000 mm Length <7138 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. -: Schmolz + Bickenbach Cryodur® 2363 (A-2) Cold Work Die Steel Properties -:- For detailed product information, please contact sales. -:

Applications of Schmolz + Bickenbach Cryodur® 2363 (A-2) Cold Work Die Steel Flange -:- For detailed product information, please contact sales. -: Chemical Identifiers Schmolz + Bickenbach Cryodur® 2363 (A-2) Cold Work Die Steel Flange -:- For detailed product information, please contact sales. -:

Packing of Schmolz + Bickenbach Cryodur® 2363 (A-2) Cold Work Die 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 3609 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