Nickel-tungsten Master Alloy,Nickel tungsten Alloy，1

### **Product Introduction: Nickel-Tungsten Master Alloy** **Overview** Nickel-Tungsten Master Alloy is a specialized metallurgical additive designed for precise tungsten introduction in various high-performance alloy systems. This master alloy serves as an efficient vehicle for incorporating tungsten into molten metals, particularly in nickel-based superalloys, tool steels, and other advanced metallic materials requiring enhanced high-temperature strength, wear resistance, and density. The controlled composition ensures optimal tungsten recovery, uniform distribution, and predictable performance in demanding applications. --- #### **Chemical Composition (Typical % by Weight)** | Element | Content (%) | Role & Benefit | |---------|-------------|---------------| | **Nickel (Ni)** | Balance | Primary carrier metal ensuring excellent solubility and homogeneous distribution | | **Tungsten (W)** | 40.0 - 80.0 | Key alloying element providing solid solution strengthening and high-temperature stability | | **Iron (Fe)** | ≤ 0.15 | Controlled residual element | | **Cobalt (Co)** | ≤ 0.10 | Minimized to prevent interference with tungsten effects | | **Molybdenum (Mo)** | ≤ 0.08 | Controlled impurity | | **Carbon (C)** | ≤ 0.05 | Kept low to prevent carbide formation issues | | **Silicon (Si)** | ≤ 0.08 | Controlled for optimal performance | | **Sulfur (S)** | ≤ 0.008 | Minimized to avoid hot cracking | | **Other Impurities** | ≤ 0.50 | Total controlled impurities | *Note: Tungsten content can be customized from 40% to 80% based on specific application requirements and melting conditions.* --- #### **Physical & Mechanical Properties** **Physical Properties:** - Density: 12.5 - 16.5 g/cm³ (depending on tungsten content) - Melting Range: 1450 - 1650°C (2642 - 3002°F) - Form: Typically supplied as crushed lumps, granules, or customized shapes - Color: Silver-gray metallic appearance with characteristic high density - Solubility: Excellent solubility in nickel, cobalt, and iron-based systems **Typical Characteristics:** - High tungsten recovery rates (90-98%) - Excellent microstructural homogeneity - Predictable dissolution kinetics - Good handling and storage stability - Consistent chemical composition batch-to-batch --- #### **International Standards and Specifications** While master alloys often follow specific customer requirements, relevant references include: - **ASTM B160:** Nickel Rod and Bar (reference standard) - **ISO 6208:** Wrought nickel and nickel alloys - **AMS 2280:** Trace Element Control for Nickel Alloy - **Custom Specifications:** Customer-specific technical requirements - **Internal Quality Standards:** Comprehensive quality assurance protocols - **Material Certification:** Full traceability and quality documentation --- #### **Product Applications** **Superalloy Manufacturing:** - Nickel-based superalloy production for aerospace - Gas turbine engine components - High-temperature structural alloys - Marine turbine applications **Tool and Die Steels:** - High-speed steel production - Hot work tool steels - Wear-resistant alloy development - Cutting tool materials **Specialty Alloys:** - Heavy alloys for balancing applications - Radiation shielding materials - Kinetic energy penetrators - High-density counterweights **Advanced Applications:** - Additive manufacturing powder production - Thermal barrier coating systems - Electronic packaging materials - Nuclear industry components --- #### **Key Advantages** 1. **Precise Composition Control**: Accurate tungsten content for consistent metallurgical results 2. **High Recovery Efficiency**: Excellent tungsten yield with minimal processing losses 3. **Uniform Distribution**: Ensures homogeneous tungsten dispersion in final alloys 4. **Solid Solution Strengthening**: Enhanced high-temperature strength and creep resistance 5. **Density Control**: Precise adjustment of material density for specific applications 6. **Improved Wear Resistance**: Enhanced hardness and abrasion resistance 7. **Cost-Effective Alloying**: Economical compared to pure tungsten metal addition 8. **Reduced Segregation**: Minimized tungsten segregation during solidification --- **Conclusion** Nickel-Tungsten Master Alloy represents a sophisticated metallurgical solution for precision alloying in high-performance materials manufacturing. Its optimized composition ensures efficient tungsten incorporation, high recovery rates, and consistent performance across various demanding applications. The master alloy's ability to enhance high-temperature strength, improve wear resistance, and provide density control makes it invaluable for applications ranging from aerospace superalloys to advanced tooling materials. Supported by rigorous quality control and manufacturing consistency, Nickel-Tungsten Master Alloy enables the development of next-generation materials that meet the increasingly demanding requirements of modern technology industries. This master alloy provides engineers and metallurgists with reliable solutions for advanced material design, performance optimization, and manufacturing efficiency in high-value applications where precision and reliability are paramount.

Packing of Standard Packing: 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 3439 gallon liquid totes Special package is available on request.