MetalTek,MTEK HC-225 UNS F45005 Abrasion Resistant Cast Iron 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. -: MetalTek MTEK HC-225 UNS F45005 Abrasion Resistant Cast Iron Flange Product Information -:- For detailed product information, please contact sales. -: MetalTek MTEK HC-225 UNS F45005 Abrasion Resistant Cast Iron Flange Synonyms -:- For detailed product information, please contact sales. -:

MetalTek MTEK HC-225 UNS F45005 Abrasion Resistant Cast Iron Product Information -:- For detailed product information, please contact sales. -: # **MetalTek MTEK HC-225 (UNS F45005) High-Chromium, High-Carbon Abrasion Resistant White Cast Iron** ## **1. Product Overview** **MetalTek MTEK HC-225**, standardized under **UNS F45005**, represents an ultra-high-performance **high-chromium, high-carbon white cast iron** engineered for the most severe abrasion and erosion-wear applications. The designation "HC-225" indicates its core characteristics: **High-Chromium** alloy with a target **minimum hardness of 225 HB above standard Class III alloys**, effectively achieving **63-67 HRC (700-825 HB)**. This alloy delivers superior wear life through a microstructure dominated by a high volume fraction of ultra-hard chromium carbides in a fully martensitic matrix. This material is specifically formulated for applications where standard high-chromium irons (like Class III Type A) reach their performance limits, offering extended service life in extreme abrasive environments involving high-stress grinding, gouging, and severe impact-abrasion. ## **2. Chemical Composition** MTEK HC-225 features a carefully optimized chemical composition that pushes the boundaries of carbide formation and matrix hardness. It exceeds the standard ranges of conventional Class III alloys. | Element | Composition Range (%) | Functional Role | |---------|----------------------|-----------------| | **Carbon (C)** | 3.4 – 4.0 | Primary carbide former. This elevated carbon content maximizes the volume fraction of hard **M₇C₃ carbides**, directly enhancing abrasion resistance. | | **Chromium (Cr)** | 24.0 – 28.0 | Forms the primary wear-resistant **chromium carbides (M₇C₃)**. Provides oxidation and mild corrosion resistance. The high Cr/C ratio ensures carbide stability. | | **Molybdenum (Mo)** | 2.0 – 3.5 | Enhances hardenability, refines the matrix, and forms secondary carbides for improved high-temperature stability and toughness. | | **Nickel (Ni)** | 0.8 – 2.0 | Strong austenite stabilizer. Ensures complete martensitic transformation upon heat treatment by suppressing pearlite formation, especially in heavy sections. | | **Manganese (Mn)** | 0.8 – 1.5 | Auxiliary austenite stabilizer and deoxidizer. Supports hardenability. | | **Silicon (Si)** | 0.3 – 0.8 | Deoxidizer during melting. Kept low to avoid graphitization and to promote carbide stability. | | **Copper (Cu)** | 0 – 1.5 | Optional addition to enhance corrosion resistance in certain slurry applications and supplement hardenability. | | **Sulfur (S)** | ≤ 0.05 | Impurity control. | | **Phosphorus (P)** | ≤ 0.05 | Impurity control. | **Key Microstructural Feature:** The microstructure consists of **35-45% volume fraction of primary and eutectic chromium carbides (M₇C₃)** embedded in a fully **martensitic matrix** with minimal retained austenite. The carbides are large, blocky, and densely packed, providing the primary wear-resistant phase. ## **3. Physical & Mechanical Properties** ### **Physical Properties:** * **Density:** ≈ 7.65 – 7.75 g/cm³ * **Melting Point:** ≈ 1220 – 1280 °C * **Thermal Conductivity:** Low, ~18 – 22 W/m·K * **Coefficient of Thermal Expansion:** 9.0 – 10.0 x 10⁻⁶ /°C (20-400°C) ### **Mechanical Properties (Heat-Treated Condition):** * **Macro-Hardness:** **63 – 67 HRC** (Typical), **700 – 825 HBW** (Minimum guaranteed values are customer-specified, often > 700 HB). * **Abrasion Resistance (ASTM G65):** **Exceptional, 15-30% superior** to standard UNS F45000 (Class III Type A) grades under high-stress conditions. The high carbide volume provides unmatched resistance to cutting and gouging wear. * **Compressive Strength:** Extremely High (> 2300 MPa). Excellent resistance to deformation under crushing loads. * **Tensile Strength:** 500 – 700 MPa. Low ductility; not a primary design factor. * **Impact Toughness (Charpy Unnotched):** **Very Low, 3 – 10 J.** This is the critical trade-off for extreme abrasion resistance. The material is highly brittle. * **Fracture Toughness (K_IC):** Very Low. Highly susceptible to crack propagation from defects or impact. * **Modulus of Elasticity:** 200 – 210 GPa. ### **Heat Treatment:** Supplied exclusively in the heat-treated condition. The process is critical to achieving the martensitic matrix: 1. **Destabilization Austenitizing:** Heated to 970 – 1020°C. This allows carbon from the carbides to diffuse into the austenite matrix, enriching it. 2. **Quenching:** Air quenching or controlled forced-air cooling. The enriched austenite transforms to high-carbon martensite. 3. **Deep Tempering (Multiple Stages):** Tempered at 200 – 450°C (often in multiple cycles) to relieve stresses, transform retained austenite, and achieve the optimal balance of hardness and micro-toughness. ## **4. Product Applications** MTEK HC-225 is specified for the most punishing wear applications where component replacement cost and downtime are critical factors. * **Mining & Mineral Processing (Severe Duty):** * **Slurry Pump Wear Parts:** Impellers, casings, and liners for highly abrasive, high-concentration slurries (e.g., iron ore, tar sands, tailings). * **Crusher Components:** Cone crusher mantles/concaves (tertiary stage), vertical shaft impactor (VSI) tips and anvils. * **Pulverizer & Grinding Mill Parts:** Roller tires and table segments in vertical roller mills for hard ores/cement clinker. * **Cement Industry:** * **Clinker Crusher Hammers,** **Fan Blades** in abrasive gas streams, **Grate Cooler Plates.** * **Power Generation:** * **Coal Pulverizer** grinding elements (rolls, tires) for abrasive coals. * **Bottom Ash Conveyor** components. * **Dredging & Sand Processing:** * **Cutter Head Teeth,** **Suction Pipe Liners,** **Classifier Shoes** in sand classifiers. ## **5. International & Relevant Standards** MTEK HC-225 is a premium, proprietary alloy whose composition exceeds the minimum requirements of common standards but is aligned with their highest-performance categories. **Primary Reference Standards:** * **ASTM A532/A532M:** *Standard Specification for Abrasion-Resistant Cast Irons*. MTEK HC-225 aligns with the upper bounds of **Class III Type A** but with enhanced carbon and alloy content. It is often supplied to a proprietary specification that guarantees higher minimum hardness and performance. * **UNS Designation: F45005.** This designation is part of the Unified Numbering System for metals, grouping it with other high-chromium cast irons. * **ISO 21988:** *Abrasion-resistant cast irons*. Comparable to the highest-carbon variants of grades like **GX 300 CrMo 27 1**. * **DIN EN 12513:** Grade **G-X 300 CrMoNi 27 2-1** is a close reference for composition and application. * **JIS G5511:** Falls under the category of high-chromium cast irons with more than 20% Cr. **Supporting Standards:** * **ASTM G65:** Standard abrasion test method for ranking relative performance. * **ASTM E384:** For microhardness testing of carbides and matrix. * **ASTM E562:** For determining volume fraction of carbides via point count. ## **6. Advantages, Limitations & Design Guidelines** ### **Advantages:** 1. **Maximum Abrasion Resistance:** Arguably the best commercially available cast iron for pure abrasion resistance due to its high carbide volume and matrix hardness. 2. **Excellent Compressive Strength:** Withstands extreme pressure without deformation. 3. **Good Elevated Temperature Stability:** Maintains hardness better than lower-alloyed irons up to ~500°C due to stable carbides. ### **Limitations:** 1. **Extreme Brittleness:** Very low impact and fracture toughness. **Cannot tolerate any significant impact.** 2. **Very Poor Machinability:** Can only be finished by grinding. **Must be cast to final or near-final dimensions.** 3. **High Cost:** Significant raw material cost due to high levels of Cr, Mo, and Ni. 4. **Thermal Shock Sensitivity:** High risk of cracking during rapid heating or cooling. ### **Design & Application Guidelines:** * **Absolute Requirement:** Avoid tensile stresses and impact loading in design. * **Robust Support:** Components must be firmly and uniformly supported by a ductile backing material (e.g., mild steel) to prevent flexure. * **Liberal Radii:** All corners and transitions must have large radii to eliminate stress concentrators. * **Section Thickness Control:** Minimize variations to prevent shrinkage defects and differential cooling stresses. * **Application-Specific Testing:** For new applications, field testing of prototypes is strongly recommended to validate performance against total cost of ownership. * **Consultation with MetalTek:** Essential for component design, pattern engineering, and heat treatment specification to ensure the alloy performs as intended. -:- For detailed product information, please contact sales. -: MetalTek MTEK HC-225 UNS F45005 Abrasion Resistant Cast Iron Specification Dimensions Size： Diameter 20-1000 mm Length <6640 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. -: MetalTek MTEK HC-225 UNS F45005 Abrasion Resistant Cast Iron Properties -:- For detailed product information, please contact sales. -:

Applications of MetalTek MTEK HC-225 UNS F45005 Abrasion Resistant Cast Iron Flange -:- For detailed product information, please contact sales. -: Chemical Identifiers MetalTek MTEK HC-225 UNS F45005 Abrasion Resistant Cast Iron Flange -:- For detailed product information, please contact sales. -:

Packing of MetalTek MTEK HC-225 UNS F45005 Abrasion Resistant Cast Iron 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 3111 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