International Mold Steel Wire,TOOLOX® 44 Plastic and Rubber Mold Steel Wire

International Mold Steel Wire TOOLOX® 44 Plastic and Rubber Mold Steel Wire Product Information -:- For detailed product information, please contact sales. -: International Mold Steel Wire TOOLOX® 44 Plastic and Rubber Mold Steel Wire Synonyms -:- For detailed product information, please contact sales. -:

International Mold Steel TOOLOX® 44 Plastic and Rubber Mold Steel Product Information -:- For detailed product information, please contact sales. -: # **Product Introduction: TOOLOX® 44 Premium Plastic and Rubber Mold Steel** ## **1. Overview** **TOOLOX® 44** is a revolutionary **quenched and tempered, nitrogen-alloyed mold steel** developed by SSAB that redefines performance benchmarks for plastic and rubber mold applications. As part of the unique TOOLOX® family, it is delivered at an **exceptionally high pre-hardened hardness of 44 HRC (± 1 HRC)**, providing outstanding mechanical properties directly from the mill without any need for heat treatment. Its advanced metallurgical design, featuring nitrogen alloying and ultra-low inclusion levels, results in superior **strength-to-toughness ratio, wear resistance, and corrosion resistance** compared to conventional pre-hardened mold steels. TOOLOX® 44 is engineered for demanding high-volume production molds where dimensional stability, extended service life, and minimal post-machining are critical requirements. ## **2. International Standards & Specifications** TOOLOX® is a proprietary steel grade with unique properties not fully captured by conventional standards. It is trademarked and manufactured by SSAB with guaranteed specifications. * **Primary Manufacturer Standard:** * **SSAB TOOLOX® 44:** Proprietary specification with guaranteed hardness, tensile strength, and impact toughness values. * **Material Classification & Comparative Grades:** * **Material Type:** Nitrogen-alloyed, quenched and tempered structural steel for tooling applications. * **Performance Equivalent:** Often compared to high-hardness variants of **P20+Ni (1.2738)** or premium pre-hardened **H13-type steels**, but with superior toughness at equivalent hardness. * **Alternative Designations:** While not a direct equivalent, its application space overlaps with hardened **DIN 1.2311 (P20)** and **DIN 1.2344 (H13)**. * **Unique Feature:** It is **not a standard AISI or DIN tool steel**, but a specially engineered material from the family of high-strength structural steels adapted for tooling use. ## **3. Chemical Composition (Weight %, Typical)** The composition is optimized for high hardenability, toughness, and stability, with nitrogen as a key alloying element. | Element | Typical Range (%) | Role & Benefit | | :--- | :--- | :--- | | **Carbon (C)** | 0.20 – 0.30 | Provides base strength and hardenability while maintaining good toughness and weldability. | | **Silicon (Si)** | 0.10 – 0.40 | Deoxidizer and solid solution strengthener. | | **Manganese (Mn)** | 1.00 – 1.60 | Enhances hardenability and strength. Works in synergy with sulfur for machinability. | | **Chromium (Cr)** | 1.30 – 1.70 | Improves hardenability, provides moderate corrosion resistance, and contributes to wear resistance. | | **Molybdenum (Mo)** | 0.20 – 0.40 | Increases hardenability, strength, and toughness, especially at the core of thick sections. | | **Nickel (Ni)** | 1.30 – 1.70 | **Key alloy.** Dramatically improves toughness and impact strength at the delivered high hardness. | | **Vanadium (V)** | ≤ 0.05 | For grain refinement. | | **Nitrogen (N)** | **Alloyed addition** | **Critical innovation.** Acts as a potent interstitial strengthener, significantly increasing yield strength and hardness without compromising toughness as drastically as carbon. | | **Sulfur (S)** | 0.005 – 0.015 | Controlled level to ensure good machinability. | ## **4. Typical Physical & Mechanical Properties (As Delivered)** * **Delivery Condition:** Quenched and tempered at the mill. **Ready-to-use with guaranteed properties.** * **Guaranteed Hardness:** **43 – 45 HRC (430 – 450 HB)**. Exceptionally high and uniform for a pre-hardened mold steel. * **Tensile Strength:** 1400 – 1550 MPa (203,000 – 225,000 psi) * **Yield Strength (0.2% Offset):** 1250 – 1400 MPa (181,000 – 203,000 psi) * **Elongation A5:** ≥ 10% * **Impact Toughness (Charpy V, longitudinal):** **≥ 40 J (30 ft-lb) at 20°C.** This **exceptional toughness at 44 HRC** is a defining characteristic, far exceeding that of conventional tool steels at similar hardness. * **Modulus of Elasticity:** ~ 210 GPa (30.5 x 10⁶ psi) * **Density:** 7.85 g/cm³ * **Thermal Conductivity:** ~ 36 W/m·K (at 20°C) * **Coefficient of Thermal Expansion:** ~ 12 x 10⁻⁶/K (20-100°C) * **Corrosion Resistance:** Moderate, better than standard P20 due to chromium content, but not a stainless grade. ## **5. Product Application** TOOLOX® 44 is designed for high-performance, high-stress tooling where its combination of hardness and toughness delivers superior life and reliability. * **Plastic Injection Molds:** * **High-Volume Production Molds** for automotive components (bumpers, dashboards, door panels). * **Molds for Engineering Plastics** (PA, POM, PC, PBT) and abrasive filled materials (glass, minerals). * **Large Mold Bases, Cavities, and Cores** requiring high rigidity and resistance to deformation under high clamp pressure. * **Rubber Molds (Compression, Transfer, Injection):** * **Molds for Technical Rubber Parts** subject to high mechanical wear during demolding. * **Tire Mold Segments.** * **Die Casting:** * **Holder Blocks, Backing Plates, and Support Pillars** requiring extreme compressive strength. * **Ejector Pin Plates.** * **General Heavy-Duty Tooling:** * **Jigs, Fixtures, and Machine Components** subjected to high loads. * **Wear Plates and Guides.** ## **6. Key Features & Advantages** * **No Heat Treatment Required:** Eliminates all risks, costs, and lead times associated with quenching, tempering, and stress relieving. The steel is ready for machining and immediate use. * **Exceptional Toughness at High Hardness:** The synergistic effect of nickel and nitrogen provides impact strength typically found in steels with 10+ HRC lower hardness, drastically reducing the risk of chipping and catastrophic failure. * **Outstanding Wear Resistance:** The high base hardness (44 HRC) provides excellent resistance to abrasive wear from filled plastics and continuous cycling. * **Superior Dimensional Stability:** Extremely stable during machining due to its homogeneous, stress-relieved structure. Exhibits minimal movement or distortion. * **Excellent Machinability:** Despite its high hardness, it offers good machinability due to its consistent microstructure and controlled sulfur content, resulting in higher feed rates and longer tool life than expected. * **Good Weldability and Polishability:** Can be welded with standard procedures (pre-heat recommended) and polished to high surface finishes. * **Guaranteed Properties:** SSAB provides a material certificate with guaranteed minimum values for key mechanical properties, ensuring predictability in tool design. ## **7. Processing Guidelines** * **Machining:** Use carbide or coated carbide tools. Standard parameters for machining pre-hardened steels (~44 HRC) apply. Good chip breakage is typical. * **Electrical Discharge Machining (EDM):** Can be machined via EDM. A stress-relieving temper (~180°C for 2-4 hours) after roughing is recommended for highest precision. * **Welding:** Pre-heat to 150-200°C. Use low-hydrogen electrodes (e.g., OK Tigrod 13.26 or similar). Post-weld tempering at 200-300°C is advised for critical applications. * **Surface Treatment:** Responds well to nitriding, PVD, and CVD coatings to further enhance surface hardness and performance. **Summary:** TOOLOX® 44 is a paradigm-shifting material in the mold steel industry, offering a unique combination of very high as-delivered hardness (44 HRC) and exceptional toughness. By eliminating heat treatment and providing guaranteed, reliable properties, it simplifies the mold-making process, reduces total lead time, and significantly lowers the risk of tool failure. For molders and toolmakers facing challenges with wear, chipping, or dimensional stability in demanding plastic and rubber applications, TOOLOX® 44 provides a robust, high-performance solution that maximizes productivity and tool life. -:- For detailed product information, please contact sales. -: International Mold Steel TOOLOX® 44 Plastic and Rubber Mold Steel Specification Dimensions Size： Diameter 20-1000 mm Length <7032 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. -: International Mold Steel TOOLOX® 44 Plastic and Rubber Mold Steel Properties -:- For detailed product information, please contact sales. -:

Applications of International Mold Steel Wire TOOLOX® 44 Plastic and Rubber Mold Steel Wire -:- For detailed product information, please contact sales. -: Chemical Identifiers International Mold Steel Wire TOOLOX® 44 Plastic and Rubber Mold Steel Wire -:- For detailed product information, please contact sales. -:

Packing of International Mold Steel Wire TOOLOX® 44 Plastic and Rubber Mold Steel Wire -:- 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 Wire 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 3503 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