AISI 6150 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. -: AISI 6150 Steel Flange, oil quenched 845°C (1550°F), 540°C (1000°F) temper Product Information -:- For detailed product information, please contact sales. -: AISI 6150 Steel Flange, oil quenched 845°C (1550°F), 540°C (1000°F) temper Synonyms -:- For detailed product information, please contact sales. -:

AISI 6150 Steel, oil quenched 845°C (1550°F), 540°C (1000°F) temper Product Information -:- For detailed product information, please contact sales. -: ### **Product Introduction: AISI 6150 Alloy Steel – Oil Quenched & Tempered** **Product Designation:** AISI 6150 Steel, Oil Quenched at 845°C (1550°F) and Tempered at 540°C (1000°F) **Overview:** AISI 6150 is a versatile chromium-vanadium alloy steel renowned for its excellent combination of high strength, good toughness, and superior fatigue resistance. The specific heat treatment of oil quenching from 845°C followed by tempering at 540°C produces a tempered martensitic microstructure. This treatment optimally balances the material's properties, resulting in a high-strength condition with considerable ductility and impact resistance, making it ideal for demanding high-stress applications. --- ### **1. Chemical Composition (Nominal, wt. %)** The composition is formulated to provide hardenability, strength, and wear resistance. | Element | Carbon (C) | Manganese (Mn) | Silicon (Si) | Chromium (Cr) | Vanadium (V) | Iron (Fe) | | :--- | :---: | :---: | :---: | :---: | :---: | :---: | | **Content** | 0.48 - 0.53 | 0.70 - 0.90 | 0.15 - 0.30 | 0.80 - 1.10 | 0.15 min | Balance | *Note: Phosphorus (P) and Sulfur (S) are maintained at low levels (typically ≤ 0.035% each) to ensure purity and good toughness.* --- ### **2. Physical & Mechanical Properties (Typical after 845°C OQ & 540°C Temper)** *Properties are indicative and can vary with exact section size and process parameters.* * **Tensile Strength:** 1,240 – 1,380 MPa (180 – 200 ksi) * **Yield Strength (0.2% Offset):** 1,100 – 1,240 MPa (160 – 180 ksi) * **Elongation (in 50 mm / 2”):** 12 – 16% * **Reduction of Area:** 45 – 55% * **Hardness:** 38 – 44 HRC * **Impact Toughness (Charpy V-notch):** 40 – 55 J (30 – 40 ft·lb) at room temperature * **Modulus of Elasticity:** ~205 GPa (29,700 ksi) * **Density:** 7.85 g/cm³ (0.284 lb/in³) --- ### **3. Key Characteristics & Advantages** * **High Strength-to-Weight Ratio:** Offers significant strength while remaining lighter than many high-alloy alternatives. * **Excellent Fatigue Strength:** The chromium and vanadium content, combined with the tempered martensite structure, provides exceptional resistance to cyclic loading, crucial for springs and rotating parts. * **Good Wear Resistance:** Suitable for components subject to sliding contact and abrasion. * **Favorable Hardenability:** The alloying elements, particularly chromium, ensure good depth of hardening in moderate sections during oil quenching. * **Machinability & Grindability:** In the annealed condition prior to heat treatment, it offers fair machinability. In the final heat-treated condition, it can be machined or ground with appropriate techniques. --- ### **4. Typical Product Applications** This specific heat-treated condition of AISI 6150 is extensively used in high-performance mechanical components requiring durability under stress: * **Heavy-Duty Springs:** Coil springs, leaf springs (especially for automotive and rail applications), and torsion bars. * **Power Transmission Components:** Gears, shafts, spindles, and couplings. * **Tooling & Machinery Parts:** Drill collars, mandrels, bolts, and high-strength fasteners. * **Agricultural & Off-Highway Equipment:** Critical pins, axles, and linkages. * **Aerospace Components:** Non-critical structural parts, landing gear components (secondary). --- ### **5. Relevant International & Equivalent Standards** AISI 6150 is recognized under various international standards with closely similar compositions. | Standard Designation | Country/Region | Comparable Grade | Condition Specified | | :--- | :--- | :--- | :--- | | **AISI 6150** | USA | - | Oil Quenched & Tempered | | **ASTM A322** | USA | Grade 6150 | Standard for alloy steel bars, subject to heat treatment | | **SAE J404** | USA | SAE 6150 | Chemical composition standard | | **UNI** | Italy | **51CrV4** | A very common European equivalent, nearly identical | | **DIN / EN** | Germany / EU | **1.8159** (50CrV4) | Slight compositional variations, functionally equivalent | | **BS** | United Kingdom | **735A50** | | | **JIS** | Japan | **SCr440V** | Similar, with minor compositional differences | | **GOST** | Russia | **50KhFA** | Close equivalent | **Note:** While the chemical compositions are very similar across these standards, specific permissible ranges and mandatory trace elements may differ. The designation **51CrV4 (UNI)** is often considered the direct European counterpart. Material selection should always reference the exact specification required by the application's governing standard. -:- For detailed product information, please contact sales. -: AISI 6150 Steel, oil quenched 845°C (1550°F), 540°C (1000°F) temper Specification Dimensions Size： Diameter 20-1000 mm Length <6305 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 6150 Steel, oil quenched 845°C (1550°F), 540°C (1000°F) temper Properties -:- For detailed product information, please contact sales. -:

Applications of AISI 6150 Steel Flange, oil quenched 845°C (1550°F), 540°C (1000°F) temper -:- For detailed product information, please contact sales. -: Chemical Identifiers AISI 6150 Steel Flange, oil quenched 845°C (1550°F), 540°C (1000°F) temper -:- For detailed product information, please contact sales. -:

Packing of AISI 6150 Steel Flange, oil quenched 845°C (1550°F), 540°C (1000°F) temper -:- 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 2776 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