MetalTek MTEK H13 UNS T90813 Tool Steel

MetalTek MTEK H13 UNS T90813 Tool Steel Product Information -:- For detailed product information, please contact sales. -: MetalTek MTEK H13 UNS T90813 Tool Steel Synonyms -:- For detailed product information, please contact sales. -:

MetalTek MTEK H13 UNS T90813 Tool Steel Product Information -:- For detailed product information, please contact sales. -: # **Product Introduction: MetalTek MTEK H13 Cast Tool Steel (UNS T90813)** ## **1. Overview** **MetalTek MTEK H13 Cast Tool Steel** is a premium **chromium-molybdenum-vanadium hot work tool steel** manufactured through **specialized investment casting processes** to produce large, complex near-net-shape components for demanding high-temperature applications. Designated as **UNS T90813** (the cast equivalent of wrought AISI H13, UNS T20813), this material delivers the essential combination of **high-temperature strength, thermal fatigue resistance, and toughness** that defines H13's performance, but in cast form optimized for complex geometries. The casting process enables production of monolithic die components with integrated cooling channels, intricate contours, and large-scale dimensions that would be impossible or prohibitively expensive to machine from solid blocks, making it an ideal solution for advanced die casting, hot forging, and plastic injection molding tooling. ## **2. International Standards & Specifications** This material represents the cast product form of the globally recognized H13 hot work steel standard. * **Primary Standard Designations:** * **UNS T90813:** Unified Numbering System designation for **Cast H13 Tool Steel**. * **Wrought Reference Standard:** **AISI H13 / UNS T20813 / ASTM A681**. * **Governing Cast Standard:** **ASTM A597** Standard Specification for Cast Tool Steel. Specific foundry grades (e.g., CH-13) correspond to H13 composition. * **Key International Equivalents (Wrought Reference):** * **DIN 1.2344 / EN ISO 4957 X40CrMoV5-1** * **JIS G4404 SKD61** * **GB/T 1299 4Cr5MoSiV1** * **Common Industry Names:** **Cast H13**, **Investment Cast H13**, **Hot Work Die Steel Casting**. ## **3. Chemical Composition (Weight %, per ASTM A597 typical for CH-13)** The composition is meticulously controlled to match wrought H13 performance, with particular attention to element balance for castability and high-temperature properties. | Element | Typical Range (%) | Role & Benefit in Cast H13 | |---------|------------------|----------------------------| | **Carbon (C)** | 0.32 – 0.45 | Provides base hardness and strength. Carefully balanced for optimal toughness at high temperatures. | | **Chromium (Cr)** | 4.75 – 5.50 | Provides tempering resistance ("red hardness") and oxidation resistance at elevated temperatures. Critical for die life in aluminum die casting. | | **Molybdenum (Mo)** | 1.10 – 1.75 | **Critical for high-temperature strength and toughness.** Enhances hardenability and creep resistance in the cast structure. | | **Vanadium (V)** | 0.80 – 1.20 | Forms vanadium carbides for wear resistance and acts as a powerful grain refiner during solidification. | | **Silicon (Si)** | 0.80 – 1.20 | **Important for thermal fatigue resistance.** Strengthens the ferrite matrix and improves oxidation resistance. | | **Manganese (Mn)** | 0.20 – 0.50 | Aids in deoxidation and hardenability. | | **Foundry Practice:** Utilizes **controlled solidification, grain refinement, and often Hot Isostatic Pressing (HIP)** to ensure homogeneous microstructure, minimize segregation, and eliminate micro-porosity—critical for thermal fatigue performance. ## **4. Typical Physical & Mechanical Properties (Heat Treated)** * **As-Cast Condition:** Supplied in annealed or rough-machined condition. **Full heat treatment required** for service properties. * **Recommended Heat Treatment:** * **Preheating:** **Critical** – 750-800°C (1380-1470°F) to prevent thermal shock. * **Austenitizing:** 1010-1040°C (1850-1905°F) in controlled atmosphere. * **Quenching:** **Air cool or high-pressure gas quench** – Minimizes distortion in complex castings. * **Tempering:** **Double or triple tempering mandatory** at 540-600°C (1000-1110°F) for die casting applications. * **Mechanical Properties (Hardened & Double Tempered):** * **Hardness:** **44 – 48 HRC** (typical for die casting, adjustable via tempering). * **Tensile Strength:** 1450 – 1650 MPa (210,000 – 239,000 psi) * **Yield Strength (0.2% Offset):** 1250 – 1450 MPa (181,000 – 210,000 psi) * **Impact Toughness (Charpy V):** **25 – 40 J** (18 – 29 ft-lb) – Maintains good toughness essential for thermal shock resistance. * **Hot Hardness (540°C / 1000°F):** ~42-45 HRC – Excellent tempering resistance. * **Thermal Conductivity:** Comparable to wrought H13 (~24-28 W/m·K) – Critical for heat extraction. * **Thermal Fatigue Resistance:** **Excellent** – The primary reason for selection. Properly processed cast H13 matches wrought material's resistance to heat checking. * **Key Advantages of Cast Form:** * **Conformal Cooling Channels:** Enables optimized cooling passages that follow die contours exactly, dramatically improving thermal management. * **Large, Complex Geometries:** Produces monolithic die blocks up to several tons with intricate shapes. * **Material & Time Savings:** Reduces massive material waste and extensive machining time. * **Part Consolidation:** Combines multiple components into single castings, improving accuracy and reducing assembly. ## **5. Product Application** MTEK H13 Cast Tool Steel is specified for **large, complex hot work tooling** where advanced thermal management and geometric freedom are critical. * **Advanced Die Casting Dies:** * **Large aluminum die casting cavities and cores** with **high-efficiency conformal cooling systems**. * **Shot sleeves, goosenecks, and manifolds** for large casting machines. * **Hot Forging & Extrusion Tooling:** * **Large forging die inserts** with internal cooling channels. * **Complex extrusion dies and containers** for aerospace components. * **Plastic Injection Molding:** * **Large mold bases and cavity blocks** for automotive components. * **Hot runner manifolds and system components** for engineering plastics. * **Glass Industry Tooling:** * **Glass mold components** requiring thermal fatigue resistance. ## **6. Key Features & Advantages** * **Superior Thermal Management:** Cast-in conformal cooling reduces cycle times by up to 50% and improves part quality. * **Excellent Thermal Fatigue Resistance:** Maintains H13's legendary resistance to heat checking in cyclic thermal service. * **Design Freedom:** Enables optimized die geometries with internal features impossible to machine. * **Cost-Effective for Complex Dies:** Significant savings over machining massive blocks, especially with internal channels. * **Large Component Capability:** Can produce die blocks beyond standard wrought billet sizes. * **Material Consistency:** Advanced foundry practices ensure uniform properties throughout large castings. * **Reduced Lead Time:** Faster production of complex tooling compared to extensive machining operations. ## **7. Processing & Quality Considerations** * **Mandatory Heat Treatment:** As-cast material requires full AQT cycle tailored for cast microstructure. * **Critical NDT Requirements:** * **Radiographic Inspection:** Essential for verifying internal soundness of cooling channels. * **Ultrasonic Testing:** For large sections to detect internal flaws. * **Fluorescent Penetrant Inspection:** For surface crack detection. * **Hot Isostatic Pressing (HIP):** **Highly recommended** for die casting applications to eliminate micro-porosity and maximize thermal fatigue life. * **Stress Relief:** Complex castings often benefit from intermediate stress relief after rough machining. * **Surface Enhancement:** Typically **nitrided or PVD coated** after final machining to improve wear and soldering resistance. * **Cooling Channel Design:** Requires expertise in fluid dynamics and solidification modeling to optimize performance and avoid stress concentrations. **Summary:** MetalTek MTEK H13 Cast Tool Steel (UNS T90813) represents the convergence of traditional H13 metallurgy with advanced manufacturing technology. It transforms hot work tooling from a compromise between machinability and performance into an optimized system where thermal management is engineered directly into the die material. For applications where cooling efficiency dictates productivity—such as large aluminum die castings or complex plastic molds—cast H13 with conformal cooling provides a quantum leap in performance. It enables not just longer die life through traditional H13 properties, but fundamentally faster cycle times and better part quality through intelligent thermal design. This makes it not merely an alternative to wrought H13, but a superior solution for the most demanding, high-value tooling applications where performance and total cost of ownership are paramount. -:- For detailed product information, please contact sales. -: MetalTek MTEK H13 UNS T90813 Tool Steel Specification Dimensions Size： Diameter 20-1000 mm Length <7069 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 H13 UNS T90813 Tool Steel Properties -:- For detailed product information, please contact sales. -:

Applications of MetalTek MTEK H13 UNS T90813 Tool Steel -:- For detailed product information, please contact sales. -: Chemical Identifiers MetalTek MTEK H13 UNS T90813 Tool Steel -:- For detailed product information, please contact sales. -:

Packing of MetalTek MTEK H13 UNS T90813 Tool Steel -:- 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 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 3540 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