Nickel-chromium Master Alloy,Nickel-chromium Alloy，1

### **Product Introduction: Nickel-Chromium Master Alloy** **Overview** Nickel-Chromium Master Alloy is a fundamental metallurgical additive specifically engineered for precise chromium introduction in various high-performance alloy systems. This master alloy serves as an efficient and reliable method for incorporating chromium into nickel-based superalloys, stainless steels, and other corrosion-resistant materials. The optimized composition ensures excellent chromium recovery, uniform distribution, and enhanced performance in applications requiring superior oxidation resistance, high-temperature strength, and corrosion protection. --- #### **Chemical Composition (Typical % by Weight)** | Element | Content (%) | Role & Benefit | |---------|-------------|---------------| | **Nickel (Ni)** | Balance | Primary carrier metal ensuring optimal solubility and homogeneous distribution | | **Chromium (Cr)** | 60.0 - 70.0 | Key alloying element providing oxidation and corrosion resistance | | **Iron (Fe)** | ≤ 0.15 | Controlled residual element | | **Carbon (C)** | ≤ 0.05 | Minimized to prevent carbide formation issues | | **Silicon (Si)** | ≤ 0.08 | Controlled impurity element | | **Aluminum (Al)** | ≤ 0.10 | Limited to maintain alloy purity | | **Phosphorus (P)** | ≤ 0.015 | Strictly controlled impurity | | **Sulfur (S)** | ≤ 0.008 | Minimized to prevent hot cracking | | **Other Elements** | ≤ 0.50 | Total controlled impurities | *Note: Chromium content can be customized from 60% to 70% based on specific application requirements and melting parameters.* --- #### **Physical & Mechanical Properties** **Physical Properties:** - Density: 7.8 - 8.2 g/cm³ (depending on chromium content) - Melting Range: 1350 - 1450°C (2462 - 2642°F) - Form: Typically supplied as crushed lumps, granules, or customized shapes - Color: Silver-white metallic appearance - Solubility: Excellent solubility in nickel, iron, and cobalt-based systems **Typical Characteristics:** - High chromium recovery rates (92-98%) - Excellent microstructural homogeneity - Predictable dissolution behavior - Good handling and storage stability - Consistent chemical composition batch-to-batch - Optimized for efficient alloying processes --- #### **International Standards and Specifications** While often manufactured to customer-specific 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 with chemical analysis certificate --- #### **Product Applications** **Superalloy Manufacturing:** - Nickel-based superalloys (e.g., Inconel, Hastelloy series) - Gas turbine engine components - Aerospace turbine blades and disks - High-temperature structural components **Stainless Steel Production:** - Austenitic stainless steels (300 series) - Heat-resistant steels - Corrosion-resistant alloys - Specialty tool steels **Electrical Resistance Alloys:** - Heating element materials (e.g., NiCr 80/20, 70/30) - Electrical resistance wires - High-temperature furnace components - Thermocouple alloys **Corrosion-Resistant Applications:** - Chemical processing equipment - Marine and offshore components - Nuclear reactor materials - High-temperature industrial components --- #### **Key Advantages** 1. **Precise Chromium Control**: Accurate chromium content for consistent metallurgical results 2. **High Recovery Efficiency**: Excellent chromium yield with minimal processing losses (92-98%) 3. **Superior Oxidation Resistance**: Enhanced high-temperature oxidation protection through chromium oxide formation 4. **Excellent Corrosion Resistance**: Improved performance in various corrosive environments 5. **Solid Solution Strengthening**: Enhanced mechanical properties at elevated temperatures 6. **Cost-Effective Alloying**: Economical compared to pure chromium metal additions 7. **Uniform Distribution**: Homogeneous chromium dispersion in final alloys 8. **Batch Consistency**: Reliable performance across production batches --- **Conclusion** Nickel-Chromium Master Alloy represents an essential metallurgical solution for precision chromium addition in high-performance alloy systems. Its optimized composition ensures efficient chromium incorporation, high recovery rates, and consistent performance across various demanding applications. The master alloy's ability to enhance oxidation resistance, improve corrosion protection, and provide solid solution strengthening makes it indispensable for applications ranging from aerospace superalloys to industrial heating elements and corrosion-resistant materials. Supported by rigorous quality control and manufacturing excellence, Nickel-Chromium Master Alloy enables the production of advanced materials that meet the stringent requirements of modern technology industries. This master alloy provides engineers and metallurgists with a reliable tool for achieving optimal material performance, manufacturing efficiency, and product reliability in applications where high-temperature capability, corrosion resistance, and consistent quality are critical for operational success and technological advancement.

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 3453 gallon liquid totes Special package is available on request.