Iron Flange compression grade 65-45-12

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. -: Ductile Iron Flange compression grade 65-45-12 Product Information -:- For detailed product information, please contact sales. -: Ductile Iron Flange compression grade 65-45-12 Synonyms -:- For detailed product information, please contact sales. -:

Ductile Iron compression grade 65-45-12 Product Information -:- For detailed product information, please contact sales. -: ### **Product Technical Data Sheet: Ductile Iron – Grade 65-45-12 (Ferritic-Pearlitic) for Compression-Dominant Applications** --- #### **1. Product Overview** **Ductile Iron Grade 65-45-12** is specified by its tensile properties, but it serves as a **high-performance material for compression-critical components** where an optimal balance of **strength, stiffness, and load-bearing stability** is required. This ferritic-pearlitic grade offers **significantly higher compressive yield strength than its tensile rating**, along with **improved stiffness and moderate damping capacity**. It is engineered for structural applications involving heavy static loads, dynamic compressive forces, and resistance to deformation, where the higher strength of the mixed matrix provides a safety margin and potential for weight reduction compared to the more ductile 60-40-18 grade. --- #### **2. Governing International Standards** The material is defined by its tensile grade standards, with compressive behavior being a key derived performance characteristic. * **Primary Standard (Tensile Definition): ASTM A536** - *Standard Specification for Ductile Iron Castings*. Formally designated as **Grade 65-45-12**. * **Global Tensile Equivalents:** These standards define the material and thus its compressive properties: * **ISO 1083 / EN 1563:** **EN-GJS-500-7**. * **SAE J434c:** **Grade D4512**. * **UNS F33100**. * **Key Referenced Testing Standards:** * **Compressive Testing:** ASTM E9 (*Standard Test Methods of Compression Testing of Metallic Materials at Room Temperature*) guides evaluation. * **Tensile Test (for certification):** ASTM E8 / ISO 6892-1. * **Hardness:** ASTM E10 / ISO 6506. * **Damping Capacity:** Evaluated per internal or industry standards (e.g., for machine tool applications). --- #### **3. Typical Chemical Composition** Chemistry is balanced to produce a mixed ferritic-pearlitic matrix that enhances compressive strength while maintaining good integrity. | Element | Target Range (%) | Functional Role for Compression Performance | | :--- | :--- | :--- | | **Carbon (C)** | 3.5 - 3.8 | Provides graphite for stress distribution and damping; strengthens matrix. | | **Silicon (Si)** | 2.2 - 2.6 | Solid solution strengthener; balances ferrite and pearlite formation. | | **Manganese (Mn)** | **0.20 - 0.40** | Primary pearlite stabilizer; increases matrix hardness and compressive strength. | | **Phosphorus (P)** | **≤ 0.04** | Kept low to prevent embrittlement under high stress. | | **Sulfur (S)** | **≤ 0.015** | Kept very low. | | **Magnesium (Mg)** | 0.03 - 0.05 | Ensures spheroidal graphite for optimal load distribution. | | **Copper (Cu)** | **0 - 0.30** | Optional; promotes uniform pearlite, enhancing strength consistency in thick sections. | --- #### **4. Physical & Mechanical Properties (Compression Focus)** This table highlights properties most relevant to compression-dominated design. | Property | Value / Ratio | Significance for Compression Applications | | :--- | :--- | :--- | | **Compressive Yield Strength (0.2% offset)** | **~700 - 850 MPa (102 - 123 ksi)** | **Approximately 2.2x its tensile yield strength.** Provides high resistance to permanent deformation under heavy compressive loads. | | **Ultimate Compressive Strength** | **> 1100 MPa (160 ksi)** | Very high; failure is typically by yielding or structural buckling, not material fracture. | | **Compressive-to-Tensile Yield Ratio** | **~2.2 : 1 to 2.5 : 1** | Demonstrates excellent efficiency in compression loading. | | **Tensile Properties (Certification Basis)** | **450 MPa UTS, 310 MPa YS, 12% Elongation** | Standard certification ensures material quality. | | **Hardness (Brinell)** | **170 - 207 HBW** | Increased hardness over 60-40-18 provides better resistance to surface indentation and wear in bearing applications. | | **Modulus of Elasticity** | **165 - 172 GPa** | High stiffness ensures minimal deflection under load, crucial for precision machinery. | | **Damping Capacity** | **~3-5 times greater than steel** | Very good vibration absorption, though slightly lower than fully ferritic 60-40-18 due to higher pearlite content. | | **Microstructure** | **Mixed Matrix (40-70% Pearlite in Ferrite)** with **Spheroidal Graphite**. | The pearlite increases strength and stiffness; the ferrite provides toughness and some damping. | --- #### **5. Product Applications (Compression-Dominant)** Grade 65-45-12 is ideal for applications requiring robust support, high load capacity, and dimensional stability. * **Machine Tool Structures:** **Heavy-duty lathe beds, machining center bases, grinding machine frames, and C-frame press uprights.** Its stiffness minimizes deflection, while damping improves surface finish. * **Industrial Machinery Housings:** **High-pressure pump bodies, compressor crankcases, and large gearbox housings** containing internal compressive and vibrational loads. * **Press & Stamping Equipment:** **Press columns, bolsters, and slide housings** that must resist high cyclic compressive forces without permanent set. * **Material Handling & Automation:** **Base frames for robotic cells, heavy conveyor supports, and indexing table bodies.** * **Energy Sector:** **Components for hydraulic power units, generator set bases, and wind turbine nacelle frames.** --- #### **6. Fabrication & Design Notes** * **Condition:** Typically supplied **as-cast** or **normalized**. Normalizing is recommended for large or complex castings to ensure uniform microstructure and consistent compressive properties throughout. * **Design Philosophy:** The **high compressive yield strength** allows for more efficient sectional design. Engineers should consider **buckling resistance** for slender members and **contact stress** for bearing surfaces. The material's **fatigue strength in compression** is excellent. * **Machinability:** **Very Good to Excellent.** The mixed microstructure offers a favorable balance for machining bearing surfaces and precision features. * **Weldability:** **Fair to Poor.** Not recommended for primary fabrication. Repairs require standard ductile iron procedures: high pre-heat, nickel-iron electrodes, and stress relief. --- #### **7. Ordering Information** **Specify:** **"Ductile Iron Castings, ASTM A536 Grade 65-45-12, [As-Cast or Normalized], for Compression-Dominant Structural Application."** **Essential Details to Provide:** * **Applicable Standard** (ASTM A536). * **Part Drawing & Specification,** highlighting compressive load cases, stiffness requirements, and critical bearing surfaces. * **Condition Preference:** As-cast or Normalized. * **Certification Requirements:** Standard Mill Test Report (MTR) with tensile properties and hardness. * **Special Requirements:** If critical, **verification of compressive yield strength per ASTM E9** can be specified. For large structural castings, **ultrasonic testing (UT)** for internal soundness may be required. **Ductile Iron Grade 65-45-12 is the engineer's choice for high-performance compression applications. It delivers an outstanding combination of high load-bearing capacity, structural stiffness, and vibrational damping, making it a superior and cost-effective alternative to fabricated steel structures in countless industrial settings.** -:- For detailed product information, please contact sales. -: Ductile Iron compression grade 65-45-12 Specification Dimensions Size： Diameter 20-1000 mm Length <6536 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. -: Ductile Iron compression grade 65-45-12 Properties -:- For detailed product information, please contact sales. -:

Applications of Ductile Iron Flange compression grade 65-45-12 -:- For detailed product information, please contact sales. -: Chemical Identifiers Ductile Iron Flange compression grade 65-45-12 -:- For detailed product information, please contact sales. -:

Packing of Ductile Iron Flange compression grade 65-45-12 -:- 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 3007 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