ASTM A148 Grade 105-85 Cast 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. -: ASTM A148 Grade 105-85 Cast Steel Flange Product Information -:- For detailed product information, please contact sales. -: ASTM A148 Grade 105-85 Cast Steel Flange Synonyms -:- For detailed product information, please contact sales. -:

ASTM A148 Grade 105-85 Cast Steel Product Information -:- For detailed product information, please contact sales. -: ### **Product Datasheet: ASTM A148 Grade 105-85 High-Strength Cast Steel** #### **Product Overview** ASTM A148 Grade 105-85 is a high-strength carbon steel casting alloy designed for structural applications requiring superior mechanical properties. This grade is part of the ASTM A148 specification, which covers high-strength steel castings for general applications. The designation "105-85" refers to its minimum tensile strength of 105 ksi (725 MPa) and minimum yield strength of 85 ksi (585 MPa). It achieves its properties through heat treatment (normalizing and tempering or quenching and tempering), resulting in a fine-grained, homogeneous microstructure with an excellent balance of strength and ductility. **Key Advantages:** * **High Strength-to-Weight Ratio:** Allows for the design of lighter, more efficient components without sacrificing load-bearing capacity. * **Good Ductility and Toughness:** Provides reliability under impact and shock loading conditions. * **Excellent Machinability (in annealed condition):** Can be readily machined into complex geometries after casting. * **Weldability:** Can be welded using standard procedures, though precautions are necessary. --- #### **International Standard** The manufacturing, chemical, and mechanical properties of this product are governed by the latest version of: * **ASTM A148 / A148M:** Standard Specification for Steel Castings, High Strength, for Structural Purposes. This standard ensures the quality and performance consistency of castings for critical structural applications. --- #### **Chemical Composition (Heat Analysis, %)** ASTM A148 specifies mechanical properties as the primary requirement. Chemical composition is generally agreed upon between the manufacturer and the purchaser but is controlled to achieve the specified mechanical properties. A typical, representative chemistry for Grade 105-85 is: | Element | Typical Range (%) | | :--- | :--- | | Carbon (C) | 0.25 - 0.35 | | Manganese (Mn) | 0.70 - 1.00 | | Silicon (Si) | 0.60 - 0.80 | | Phosphorus (P), max | 0.035 | | Sulfur (S), max | 0.035 | | *Note: Alloying elements such as Chromium, Nickel, and Molybdenum may be added in small quantities to enhance hardenability and mechanical properties, particularly in thicker sections.* | --- #### **Mechanical Properties** Mechanical properties are the primary guarantee for this grade and are tested on specimens representing the casting's critical sections. | Property | Required Value | Unit | | :--- | :--- | :--- | | **Tensile Strength, min** | 725 | MPa (105 ksi) | | **Yield Strength (0.2% Offset), min** | 585 | MPa (85 ksi) | | **Elongation in 2 in (50 mm), min** | 17 | % | | **Reduction of Area, min** | 35 | % | | **Brinell Hardness** | 201 - 255 | HBW | **Impact Properties (Typical):** * While not always a mandatory requirement in the base standard, Charpy V-Notch impact properties can be specified. * **Typical Impact Energy (Charpy V-Notch at Room Temperature):** 40 - 60 J (30 - 45 ft·lb) --- #### **Physical Properties (Typical Values)** * **Density:** 7.85 g/cm³ (0.284 lb/in³) * **Modulus of Elasticity:** 200 GPa (29,000 ksi) * **Poisson's Ratio:** 0.29 * **Coefficient of Thermal Expansion:** 11.5 x 10⁻⁶/°C (20-100°C) --- #### **Heat Treatment** ASTM A148 Grade 105-85 castings are supplied in a heat-treated condition to meet the specified mechanical properties. The standard heat treatment processes are: * **Normalizing and Tempering:** Provides a good combination of strength and toughness with reduced risk of distortion. * **Quenching and Tempering:** Used to achieve higher strength and better through-thickness properties, especially for thicker sections. --- #### **Product Applications** This high-strength cast steel is ideal for components that experience high static and dynamic loads in industrial and heavy equipment sectors. * **Construction & Mining Machinery:** Gears, pinions, shafts, bearing housings, boom ends, and crusher components. * **Material Handling Equipment:** High-strength hooks, pulleys, sheaves, and links for heavy-duty chains. * **Railroad Components:** Couplers, yokes, and other draft gear parts. * **Industrial Machinery:** Press frames, machine tool components, and rolls where high strength is critical. * **Marine & Offshore Equipment:** Deck machinery components, winch drums, and stern tubes. --- #### **Fabrication & Welding Notes** * **Welding:** While weldable, it requires strict procedures due to its high strength and carbon content. * Use low-hydrogen welding processes (SMAW, GMAW, FCAW with low-H₂ electrodes). * Preheating (typically 200-300°C / 400-600°F) and Post-Weld Heat Treatment (PWHT/stress relieving) are **highly recommended** to prevent hydrogen-induced cracking and relieve residual stresses. * Welding procedure specifications (WPS) should be qualified before production welding. * **Machining:** Best performed in the annealed condition for optimal tool life. Machining in the heat-treated condition requires rigid setups and carbide tools. --- **Disclaimer:** This datasheet is for informational purposes only. The information provided is typical and should not be used for design or specification purposes. Always consult the official ASTM A148 standard, your casting supplier, and a qualified metallurgist for the most accurate and project-specific data, especially for critical applications. -:- For detailed product information, please contact sales. -: ASTM A148 Grade 105-85 Cast Steel Specification Dimensions Size： Diameter 20-1000 mm Length <4154 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. -: ASTM A148 Grade 105-85 Cast Steel Properties -:- For detailed product information, please contact sales. -:

Applications of ASTM A148 Grade 105-85 Cast Steel Flange -:- For detailed product information, please contact sales. -: Chemical Identifiers ASTM A148 Grade 105-85 Cast Steel Flange -:- For detailed product information, please contact sales. -:

Packing of ASTM A148 Grade 105-85 Cast 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 625 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