AISI 4063 Steel Flange (UNS G40630)

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. -: AISI 4063 Steel Flange (UNS G40630) Product Information -:- For detailed product information, please contact sales. -: AISI 4063 Steel Flange (UNS G40630) Synonyms -:- For detailed product information, please contact sales. -:

AISI 4063 Steel (UNS G40630) Product Information -:- For detailed product information, please contact sales. -: ### **Product Introduction: AISI 4063 Steel (UNS G40630)** **Overview** AISI 4063 is a high-quality, high-carbon chromium-molybdenum (Cr-Mo) alloy steel. Characterized by its significantly higher carbon content compared to other standard Cr-Mo grades like 4140 or 4150, AISI 4063 is engineered to achieve exceptional hardness, wear resistance, and high strength levels after heat treatment. Its primary use is in applications demanding extreme surface durability and load-bearing capacity under abrasive conditions. The chromium and molybdenum additions provide good hardenability and resistance to tempering, allowing it to maintain hardness at elevated temperatures. **Key International Standards & Designations** * **UNS:** G40630 * **AISI / SAE:** 4063 * **Germany (DIN):** Approx. 1.7176 / 60CrMo3-4 * **Europe (EN):** No direct equivalent; similar to proprietary grades with adjusted composition. * **Japan (JIS):** No direct equivalent; SCM440/SCM445 have lower carbon. * **Note:** AISI 4063 is a less common but specialized grade. Specifications may vary by manufacturer. UNS G40630 and AISI/SAE 4063 are the defining standards for this product. **Chemical Composition (Typical, Weight %)** The high carbon content is the defining feature of this grade. | Element | Content (%) | Element | Content (%) | | :--- | :--- | :--- | :--- | | **Carbon (C)** | 0.60 - 0.67 | **Molybdenum (Mo)** | 0.20 - 0.30 | | **Manganese (Mn)** | 0.75 - 1.00 | **Phosphorus (P)** | ≤ 0.035 | | **Silicon (Si)** | 0.15 - 0.35 | **Sulfur (S)** | ≤ 0.040 | | **Chromium (Cr)** | 0.60 - 0.90 | **Iron (Fe)** | Balance | *Composition ranges are per AISI/SAE specification. Specific heats may have tighter controls.* **Physical & Mechanical Properties** Properties are highly dependent on heat treatment (typically oil quenched and tempered). The high carbon content enables very high hardness but can reduce toughness and weldability. * **Density:** 7.85 g/cm³ (0.284 lb/in³) * **Melting Point:** Approx. 1415 - 1465 °C (2580 - 2670 °F) * **Modulus of Elasticity:** 205 GPa (29.7 x 10⁶ psi) * **Thermal Conductivity:** ~42.0 W/m·K (at 100°C) * **Typical Mechanical Properties (Quenched & Tempered at Low Temperature):** * **Tensile Strength:** 1100 - 1400+ MPa (160 - 200+ ksi) * **Yield Strength (0.2% Offset):** 950 MPa min (138 ksi min) * **Elongation (in 50mm):** 10% - 15% (lower at higher hardness) * **Reduction of Area:** 35% - 50% * **Hardness Range:** 35 - 55+ HRC (Broad range achievable through tempering; commonly used in the 45-52 HRC range for optimal wear/toughness balance). * **Hardenability:** Very good. The alloying elements allow for deep and uniform hardening in moderate sections. **Product Forms & Applications** AISI 4063 is typically supplied in the spheroidize-annealed or softened condition to facilitate machining prior to final heat treatment. * **Available Forms:** * Round Bars (Hot-rolled, forged, precision ground) * Flat Bars * Forging Blanks * Tubing (less common) * **Primary Applications:** (Focused on high-wear, high-strength components) * **Heavy-Duty Gears & Pinions:** Especially for mining, construction, and heavy machinery where high tooth strength and wear resistance are critical. * **Shafts & Axles:** For high-torque applications requiring superior resistance to bending and wear (e.g., drive axles, spindle shafts). * **High-Strength Bolts & Fasteners:** For critical connections in demanding environments (e.g., pressure vessels, high-performance engines). Requires careful heat treatment to manage brittleness. * **Wear Parts & Tools:** Used for parts like rollers, mandrels, liners, and non-cutting tool applications where abrasion is a primary failure mode. * **Springs:** For heavy-duty mechanical springs requiring very high elastic limits and fatigue resistance (after appropriate heat treatment). **Heat Treatment** * **Annealing:** Full anneal at 815-845°C (1500-1550°F) and slow furnace cool, or spheroidize anneal to produce a soft, machinable structure with carbide spheroids. * **Normalizing:** 830-860°C (1525-1580°F), air cool. * **Quenching & Tempering (Typical):** * **Preheat/Austenitize:** Preheat at 650-700°C (1200-1290°F), then austenitize at 815-845°C (1500-1550°F). **Oil quench is standard.** Water or polymer quenches may be used for maximum hardness in simple shapes but increase risk of distortion/cracking. * **Tempering:** **Immediately after quenching.** Temper between 205-540°C (400-1000°F) to achieve the desired hardness and toughness balance. Tempering above 400°C (750°F) with rapid cooling is recommended to avoid temper embrittlement. * **Weldability:** Poor. Preheating (315-425°C / 600-800°F) and post-weld heat treatment are mandatory to prevent cracking in the heat-affected zone (HAZ). **Why Choose AISI 4063?** * **Superior Hardness & Wear Resistance:** The high carbon content provides a high volume of hard carbides, making it ideal for abrasive environments. * **High Strength & Load Capacity:** Capable of achieving very high tensile and yield strengths. * **Good Hardenability:** Chromium and molybdenum ensure effective through-hardening in reasonable cross-sections. * **Specialized Performance:** It fills a niche for applications that require more hardness and wear resistance than standard medium-carbon alloy steels (e.g., 4140, 4150) can provide, where tool steels might be over-specified or less machinable. **Important Considerations:** Due to its high carbon content, AISI 4063 has lower impact toughness and ductility compared to lower-carbon alloy steels. Careful design, heat treatment, and application are crucial to avoid brittle failure. It is not recommended for primary structural components subject to high impact or shock loads without thorough engineering analysis. For specific technical data, machinability recommendations, or heat treatment protocols, please consult our detailed material data sheets or contact our technical support team. -:- For detailed product information, please contact sales. -: AISI 4063 Steel (UNS G40630) Specification Dimensions Size： Diameter 20-1000 mm Length <4030 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. -: AISI 4063 Steel (UNS G40630) Properties -:- For detailed product information, please contact sales. -:

Applications of AISI 4063 Steel Flange (UNS G40630) -:- For detailed product information, please contact sales. -: Chemical Identifiers AISI 4063 Steel Flange (UNS G40630) -:- For detailed product information, please contact sales. -:

Packing of AISI 4063 Steel Flange (UNS G40630) -:- 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 501 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