Malleable Iron Tube,Pipe casting, Class 32510,Malleable Iron Tube,Pipe casting, Class 32510

Malleable Iron Tube casting, Class 32510 Product Information -:- For detailed product information, please contact sales. -: Malleable Iron Tube casting, Class 32510 Synonyms -:- For detailed product information, please contact sales. -:

Malleable iron casting, Class 32510 Product Information -:- For detailed product information, please contact sales. -: ### **Product Introduction: Malleable Iron Casting, Class 32510 (ASTM A47)** **1. Overview** Class 32510 is a standard grade of **Ferritic Malleable Iron**, as defined by the ASTM International specification A47. Malleable iron begins as a white iron casting (hard and brittle) and undergoes an extensive heat treatment process called "malleablizing." This process converts the brittle iron carbide into irregularly shaped, temper carbon nodules (clusters) within a ferritic (iron) matrix. For Class 32510, this results in a material with an excellent combination of **high ductility, good machinability, moderate strength, and superior impact resistance at room temperature**. It is a classic and reliable material for a wide range of automotive, agricultural, and general industrial applications where toughness and the ability to withstand shock loading are critical. **2. Key International Standards** * **Primary Standard:** **ASTM A47 / A47M** - Standard Specification for Ferritic Malleable Iron Castings. This is the defining document for Class 32510, specifying its chemical, mechanical, and testing requirements. * **Related/Equivalent Standards:** * **SAE J158 / SAE AMS 5315C:** Society of Automotive Engineers specifications covering malleable iron castings. * **ISO 5922:** International standard for malleable cast irons. Class 32510 is broadly equivalent to grades such as **ISO 5922 JMB 35-10** or similar ferritic grades. * **DIN 1692:** German standard for malleable cast iron. * **GB/T 9440:** Chinese national standard. **3. Typical Chemical Composition** The composition is controlled to ensure the white iron solidification necessary for successful malleablizing. Typical ranges are: | Element | Typical Range (%) | Purpose/Effect | | :--- | :--- | :--- | | **Carbon (C)** | 2.20 - 2.70 | Provides the carbon for graphitization during annealing. Higher carbon improves machinability but can reduce strength. | | **Silicon (Si)** | 0.90 - 1.50 | The primary graphitizing agent; accelerates the annealing process. | | **Manganese (Mn)** | 0.15 - 0.50 | Counteracts sulfur; improves strength. | | **Sulfur (S)** | 0.02 - 0.12 max | Impurity; kept low to prevent brittleness. | | **Phosphorus (P)** | 0.02 - 0.12 max | Impurity; improves fluidity but reduces toughness if too high. | *Note: The "32510" designation itself does not prescribe strict chemical limits but is a performance-based grade. Chemistry is tailored by the foundry to consistently achieve the required mechanical properties for a given section size.* **4. Physical & Mechanical Properties (Per ASTM A47)** The key characteristic of Class 32510 is its high elongation, denoting excellent ductility. | Property | Minimum Requirement (ASTM A47) | Typical Value / Significance | | :--- | :--- | :--- | | **Tensile Strength** | **32500 psi** (224 MPa) | Indicates moderate load-bearing capacity. | | **Yield Strength (0.5% Ext under load)** | - | Typically ~205 MPa (30,000 psi). Good resistance to permanent deformation. | | **Elongation (in 2")** | **10%** | **The defining feature.** Exceptional ductility for a cast iron, allowing for significant plastic deformation before fracture. | | **Hardness** | Not specified, but typically | **110 - 156 HB** (Brinell). This relatively low hardness contributes to its **excellent machinability**. | | **Modulus of Elasticity** | - | ~25 x 10⁶ psi (172 GPa). | | **Impact Resistance** | Not specified in A47, but known for | **Excellent Charpy impact values at room temperature**, superior to most other cast irons and many cast steels. | | **Fatigue Strength** | - | Moderate; suitable for components with moderate cyclic loads. | | **Damping Capacity** | - | Good; better than steel, providing some vibration absorption. | **5. Product Applications** Class 32510 is favored for components that require a blend of castability, strength, and most importantly, **toughness and shock resistance**. * **Automotive & Transportation:** * **Wheel Hubs and Spindles:** For trailers and some passenger vehicles. * **Brake Components:** Brake calipers, brackets, and clutch pedals. * **Steering Components:** Steering knuckles, tie rod ends, and gear housings. * **Driveline Parts:** Differential carriers, universal joint yokes, and axle components. * **Agricultural & Off-Highway Equipment:** * **Tractor Components:** Linkages, lever arms, hitch parts, and transmission cases. * **Implement Parts:** Mower deck components, plow shares, and gear housings. * **General Industrial & Hardware:** * **Pipe Fittings & Valves:** Especially for gas and water lines where pressure tightness and toughness are needed. * **Hand Tools:** Wrench sockets, pipe wrenches, and vise parts. * **Mining & Construction Hardware:** Chain links, hooks, and coupling components. * **Electrical Fittings:** Conduit bodies and junction boxes. **6. Advantages and Limitations** **Advantages:** * **Exceptional Ductility & Toughness:** Best impact resistance among common cast irons. * **Excellent Machinability:** Due to its ferritic matrix and low hardness. * **Good Pressure Tightness:** Reliable for fluid and gas handling applications. * **Good Castability:** Can produce complex, thin-walled shapes. * **Cost-Effective:** Often more economical than ductile iron or steel castings for high-volume, small-to-medium parts requiring toughness. **Limitations:** * **Lower Strength:** Compared to higher-grade malleable irons (e.g., Pearlitic grades like 45006) or ductile iron (e.g., 65-45-12). * **Lengthy Heat Treatment:** The malleablizing process (often 50+ hours) adds time and cost compared to as-cast materials. * **Section Size Sensitivity:** Properties can vary significantly with casting wall thickness. * **Not for High-Temperature Service:** The temper carbon structure is unstable above ~800°F (425°C). **Conclusion** ASTM A47 Class 32510 Ferritic Malleable Iron remains a vital engineering material where **reliable toughness and ease of manufacturing** are paramount. Its unique combination of castability, machinability, and shock absorption ensures its continued use in critical, safety-related components across diverse industries, from the automotive sector to heavy-duty hardware. -:- For detailed product information, please contact sales. -: Malleable iron casting, Class 32510 Specification Dimensions Size： Diameter 20-1000 mm Length <6573 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. -: Malleable iron casting, Class 32510 Properties -:- For detailed product information, please contact sales. -:

Applications of Malleable Iron Tube casting, Class 32510 -:- For detailed product information, please contact sales. -: Chemical Identifiers Malleable Iron Tube casting, Class 32510 -:- For detailed product information, please contact sales. -:

Packing of Malleable Iron Tube casting, Class 32510 -:- 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 Tube 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 3044 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