SAE 5015 Alloy 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. -: SAE 5015 Alloy Steel Flange, Composition Spec Product Information -:- For detailed product information, please contact sales. -: SAE 5015 Alloy Steel Flange, Composition Spec Synonyms -:- For detailed product information, please contact sales. -:

SAE 5015 Alloy Steel, Composition Spec Product Information -:- For detailed product information, please contact sales. -: **Product Datasheet: SAE 5015 Alloy Steel (Composition Spec)** **1. Product Overview** SAE 5015 is a low-carbon, chromium-molybdenum (Cr-Mo) alloy steel specifically designed for **case hardening** (carburizing or carbonitriding). It offers a balanced combination of excellent core toughness, good hardenability for moderate section sizes, and the ability to develop a hard, wear-resistant surface. Its relatively lean alloying composition makes it a **cost-effective** choice for a wide range of medium-duty, high-performance components requiring surface hardness and fatigue resistance. **2. Key International & Equivalent Standards** * **Primary Standard:** **SAE J404, J412, J770** (SAE-AISI 5015) * **U.S. Standards:** **ASTM A322** (Standard Specification for Steel Bars, Alloy, Standard Grades) * **European (EU) Equivalents:** Approximately **18CrMo4** (1.7243) – Note: European grades have slightly different composition ranges. * **Japanese Equivalent:** **SCr415** (JIS G4052) * **ISO Equivalent:** Similar to **ISO 683-11 Type 18CrMo4**. **3. Chemical Composition (Weight % - Standard Ranges)** Composition is per SAE J404 specifications. Hardenability (H-band) versions are available for tighter control. | Element | Minimum (%) | Maximum (%) | Typical Target (%) | Primary Function | | :--- | :--- | :--- | :--- | :--- | | **Carbon (C)** | 0.12 | 0.18 | 0.15 | Core strength; provides carbon for case hardening. | | **Manganese (Mn)** | 0.70 | 0.90 | 0.80 | Hardenability, combats sulfur embrittlement. | | **Phosphorus (P)** | — | 0.035 | 0.020 | Residual element (impurity). | | **Sulfur (S)** | — | 0.040 | 0.025 | Improves machinability (forms MnS inclusions). | | **Silicon (Si)** | 0.15 | 0.35 | 0.25 | Deoxidizer, provides solid solution strength. | | **Chromium (Cr)** | 0.80 | 1.10 | 0.95 | Enhances hardenability, promotes carbides in case for wear resistance. | | **Molybdenum (Mo)** | 0.15 | 0.25 | 0.20 | Significantly increases hardenability and core strength; improves tempering resistance. | **4. Physical & Mechanical Properties (Typical - After Proper Heat Treatment)** *Note: Properties are highly dependent on section size and specific heat treatment cycle.* * **Core Properties (After Case Hardening & Tempering):** * **Tensile Strength:** 550 – 850 MPa * **Yield Strength (0.2% Offset):** 400 – 650 MPa * **Elongation (in 50 mm):** ≥ 12% * **Reduction of Area:** ≥ 50% * **Hardness (Core):** 25 – 40 HRC * **Case Properties (After Carburizing & Hardening):** * **Surface Hardness:** 58 – 63 HRC * **Effective Case Depth:** Adjustable based on carburizing cycle (typically 0.5 – 2.0 mm). * **Physical Constants:** * **Density:** ~7.85 g/cm³ * **Modulus of Elasticity:** ~205 GPa * **Machinability:** Good (compared to other alloy steels), rated ~65% of a 1212 free-machining steel standard. **5. Heat Treatment Characteristics** * **Forging:** Heat uniformly to 1150°C – 1200°C (2100°F – 2200°F). Do not forge below 850°C (1550°F). * **Annealing:** Heat to 830°C – 860°C (1525°F – 1580°F), slow furnace cool. Results in ~156 HB for optimal machining. * **Case Hardening:** Excellent candidate for **gas or atmosphere carburizing** (typically 900°C – 950°C) or **carbonitriding**. * **Hardening:** After carburizing, quench in oil. The Cr-Mo content provides good through-hardenability for sections up to ~25-30mm. * **Tempering:** Required after quenching, typically in the range of **150°C – 200°C** to relieve stresses while retaining high case hardness. **6. Primary Applications** SAE 5015 is widely used in automotive, machinery, and general engineering sectors for components that require a hard, wear-resistant surface and a tough, shock-absorbing core: * **Automotive:** Gears (transmission, differential), shafts, pins, camshafts, clutch components, sprockets. * **Industrial Machinery:** Gears, rollers, cam followers, guide rods, chain links. * **Agricultural Equipment:** Drive train components, pivot pins, bushings. * **General Engineering:** Various pins, bolts, and lightly loaded bearings after case hardening. **7. Key Advantages & Selection Rationale** * **Cost-Effective Performance:** Provides a superior performance-to-cost ratio compared to higher-alloy steels like 4100 or 4300 series for many applications. * **Good Hardenability:** The Mo addition ensures sufficient hardenability for many medium-sized parts without the need for more expensive Ni. * **Excellent Core Toughness:** The low carbon content in the core ensures good ductility and impact resistance. * **Reliable Response to Case Hardening:** Produces a consistent, high-quality hardened case with good resistance to softening during tempering. --- **Disclaimer:** This data sheet provides typical information based on standard specifications. For specific applications, the exact chemical composition, heat treatment parameters, and mechanical property requirements must be agreed upon between the supplier and customer, guided by the relevant ASTM, SAE, or other applicable material standards. -:- For detailed product information, please contact sales. -: SAE 5015 Alloy Steel, Composition Spec Specification Dimensions Size： Diameter 20-1000 mm Length <4091 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. -: SAE 5015 Alloy Steel, Composition Spec Properties -:- For detailed product information, please contact sales. -:

Applications of SAE 5015 Alloy Steel Flange, Composition Spec -:- For detailed product information, please contact sales. -: Chemical Identifiers SAE 5015 Alloy Steel Flange, Composition Spec -:- For detailed product information, please contact sales. -:

Packing of SAE 5015 Alloy Steel Flange, Composition Spec -:- 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 562 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