MetalTek,MTEK 80 Cast UNS F45000 Abrasion Resistant Cast Iron Tube,Pipe

MetalTek MTEK 80 Cast UNS F45000 Abrasion Resistant Cast Iron Tube Product Information -:- For detailed product information, please contact sales. -: MetalTek MTEK 80 Cast UNS F45000 Abrasion Resistant Cast Iron Tube Synonyms -:- For detailed product information, please contact sales. -:

MetalTek MTEK 80 Cast UNS F45000 Abrasion Resistant Cast Iron Product Information -:- For detailed product information, please contact sales. -: ## **MetalTek MTEK 80 (UNS F45000) High-Chromium Abrasion Resistant White Cast Iron** ### **1. Product Overview** MetalTek MTEK 80, standardized under **UNS F45000**, is a premium **high-chromium white cast iron** engineered specifically for extreme abrasion resistance in aggressive wear environments. This alloy belongs to the class of martensitic white irons, where the high carbon and chromium content ensures the formation of hard chromium carbides (M₇C₃) embedded in a strong, wear-resistant martensitic matrix. The "80" designation typically refers to the target **minimum Brinell hardness of 800 HBW** in the heat-treated condition. This material is the industry benchmark for applications involving severe sliding abrasion, high-stress grinding, and impact-associated wear, offering a superior service life compared to lower alloyed white irons and many quenched steels. --- ### **2. Chemical Composition (Typical / Specified Range)** The abrasion resistance of MTEK 80 is derived from its carefully balanced chemistry, optimized for maximum carbide volume and matrix hardness. | Element | Typical Range (%) | Primary Function | | :--- | :--- | :--- | | **Carbon (C)** | 3.0 - 3.6 | Primary carbide former; controls carbide volume and hardness. | | **Chromium (Cr)** | 23.0 - 28.0 | Forms hard, blocky (M₇C₃) chromium carbides; provides hardenability and corrosion/oxidation resistance. | | **Molybdenum (Mo)** | 1.5 - 3.0 | Enhances hardenability, refines microstructure, and improves toughness. | | **Nickel (Ni)** | 0.5 - 1.5 | Austinite promoter; ensures full martensitic transformation upon heat treatment. | | **Manganese (Mn)** | 0.5 - 1.5 | Austinite stabilizer; aids hardenability. | | **Silicon (Si)** | 0.3 - 0.8 | Deoxidizer; controlled to avoid destabilizing carbides. | | **Copper (Cu)** | 0 - 1.2 | Sometimes added to enhance corrosion resistance and hardenability. | | **Sulfur (S)** | ≤ 0.05 | Impurity control. | | **Phosphorus (P)** | ≤ 0.05 | Impurity control. | **Microstructure:** A dense dispersion of **primary and eutectic chromium carbides (M₇C₃ type)**, comprising 30-40% by volume, within a **martensitic matrix** with retained austenite. This "hard particles in a hard matrix" structure delivers exceptional wear resistance. --- ### **3. Physical & Mechanical Properties** #### **Physical Properties:** * **Density:** ~7.6 g/cm³ * **Melting Range:** ~1250 - 1350 °C * **Thermal Conductivity:** Low (~20 W/m·K at 20°C) * **Coefficient of Thermal Expansion:** 9.5 - 10.5 x 10⁻⁶ /°C (20-400°C) #### **Mechanical Properties (in Heat-Treated Condition):** * **Abrasion Resistance (ASTM G65):** **Exceptional.** The benchmark for severe abrasion service. * **Hardness:** **58 - 65 HRC (600 - 800 HBW).** The high carbide volume ensures this hardness is maintained even under high surface loads. * **Compressive Strength:** Very High (>2000 MPa). Resists deformation under crushing loads. * **Tensile Strength:** 450 - 650 MPa. Brittle material; tensile strength is not a primary design criterion. * **Impact Toughness (Charpy Unnotched):** 5 - 15 J. **Low impact resistance** is the key trade-off for extreme abrasion resistance. * **Fracture Toughness:** Low. Susceptible to cracking from thermal shock or heavy impact. * **Modulus of Elasticity:** 200 - 210 GPa. #### **Heat Treatment:** MTEK 80 is supplied in the **heat-treated (hardened and tempered) condition** to achieve its optimal properties. The standard process involves: 1. **Stress Relieve (As-Cast):** ~500°C. 2. **Destabilization:** Heating to 950-1050°C, holding to allow partial dissolution of carbides and carbon enrichment of the austenite. 3. **Quenching:** Air quenching or forced air cooling to transform the carbon-enriched austenite to martensite. 4. **Tempering:** Typically at 200-450°C to relieve stresses, transform retained austenite, and achieve final hardness/toughness balance. --- ### **4. Product Applications** MTEK 80 is specified for components subjected to severe abrasive wear, particularly in mining, mineral processing, cement, and power industries. * **Mining & Mineral Processing:** * **Slurry Pump Parts:** Impellers, volutes, liners, throatbushes for handling abrasive ores. * **Crusher & Grinding Mill Components:** Roll shells, hammers, blow bars, liner plates. * **Chute & Hopper Liners,** Screw conveyor flights. * **Cement Industry:** * **Vertical Roller Mill (VRM) Parts:** Rollers and table segments. * **Ball Mill Liners,** Crusher hammers. * **Power Generation (Coal-Fired):** * **Pulverizer Rolls and Tires,** Ash slurry pump components. * **Shot Blasting & Abrasive Blasting:** * **Blast Wheel Liners,** Impellers, control cages. * **Dredging:** Cutter head teeth, pump wear parts. --- ### **5. International & Relevant Standards** MTEK 80 is aligned with major international standards for high-chromium abrasion-resistant cast irons. **Primary Material Standards:** * **ASTM A532/A532M:** *Standard Specification for Abrasion-Resistant Cast Irons*. MTEK 80 corresponds most closely to: * **Class III Type A** (20-28% Cr, 1.5-3.0% Mo). It is considered a premium version within this class. * **UNS Designation: F45000** (Standard designation for this alloy family). * **ISO 21988:** *Abrasion-resistant cast irons*. Corresponds to grades like **GX 300 CrMo 27 1**. * **DIN EN 12513:** *Founding — Abrasion resistant cast irons*. Grade **G-X 300 CrMo 27 1** is equivalent. * **JIS G5511:** *High chromium cast irons for abrasion resistance*. **Application & Testing Standards:** * **ASTM G65:** *Standard Test Method for Measuring Abrasion Using the Dry Sand/Rubber Wheel Apparatus* (Common wear test). * **ASTM E384:** *Standard Test Method for Microindentation Hardness of Materials* (for hardness verification). --- ### **6. Advantages, Limitations & Design Considerations** #### **Advantages:** 1. **Unmatched Abrasion Resistance:** Superior to most metallic materials in high-stress abrasion. 2. **Good Corrosion/Oxidation Resistance:** High chromium content provides better resistance than low-alloy white irons. 3. **High Pressure/Compressive Strength:** Resists deformation under load. #### **Limitations:** 1. **Low Impact & Fracture Toughness:** Cannot withstand heavy, repeated impact. 2. **Poor Machinability:** Can only be ground or machined with ceramic/carbide tools. **Components must be cast to shape.** 3. **Poor Thermal Shock Resistance:** Prone to cracking with rapid temperature changes. 4. **High Density & Cost:** Higher material and melting cost than lower-alloy alternatives. #### **Design Considerations:** * **Avoid Sharp Corners & Notches:** Design with generous radii to prevent stress concentration and crack initiation. * **Account for Brittleness:** Use robust backing/support structures and ensure proper fixturing. * **Minimize Section Thickness Variations:** To avoid casting defects and differential cooling stresses. * **Specify Correct Heat Treatment:** Essential to achieve guaranteed properties. * **Consider Composite Designs:** Often used as wear liners or inserts mounted on a tougher, ductile substrate. -:- For detailed product information, please contact sales. -: MetalTek MTEK 80 Cast UNS F45000 Abrasion Resistant Cast Iron Specification Dimensions Size： Diameter 20-1000 mm Length <6639 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 80 Cast UNS F45000 Abrasion Resistant Cast Iron Properties -:- For detailed product information, please contact sales. -:

Applications of MetalTek MTEK 80 Cast UNS F45000 Abrasion Resistant Cast Iron Tube -:- For detailed product information, please contact sales. -: Chemical Identifiers MetalTek MTEK 80 Cast UNS F45000 Abrasion Resistant Cast Iron Tube -:- For detailed product information, please contact sales. -:

Packing of MetalTek MTEK 80 Cast UNS F45000 Abrasion Resistant Cast Iron Tube -:- 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 3110 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