Alloy 43ph，Low expansion 43Ph Alloy Other/Similar Specs，,E FORU

British Specs:，American Specs:，German Specs:

### **Product Introduction: Alloy 43PH / Low Expansion 43PH Alloy - Other Forms & Related Specifications** **Comprehensive Material Solutions for Advanced Thermal Management Applications** **Alloy 43PH** represents a specialized category of precipitation-hardenable iron-nickel-cobalt alloys engineered to provide exceptional dimensional stability combined with high mechanical strength across various temperature ranges. Beyond standard product forms, this alloy system encompasses specialized configurations, alternative specifications, and tailored solutions that maintain the essential low thermal expansion characteristics while offering enhanced processing capabilities for specific application requirements in precision engineering and thermal management systems. --- #### **1. Chemical Composition (Weight %)** | Element | Standard Alloy 43PH | Modified Variants | | :--- | :--- | :--- | | **Nickel (Ni)** | 42.0 - 43.0 | 41.5 - 43.5 | | **Cobalt (Co)** | 5.0 - 6.0 | 4.5 - 6.5 | | **Titanium (Ti)** | 2.0 - 2.5 | 1.8 - 2.8 | | **Aluminum (Al)** | 0.5 - 0.8 | 0.4 - 1.0 | | **Iron (Fe)** | Balance | Balance | | **Manganese (Mn)** | 0.50 max | 0.40 max | | **Silicon (Si)** | 0.30 max | 0.25 max | | **Carbon (C)** | 0.05 max | 0.03 max | * **Composition Flexibility:** While maintaining the critical nickel-cobalt balance for low thermal expansion and titanium-aluminum for precipitation hardening, modified variants offer enhanced characteristics including improved machinability, better weldability, or specialized thermal expansion profiles. --- #### **2. Physical Properties** | Property | Standard Grade | Enhanced Grade | | :--- | :--- | :--- | | **Density** | 8.10 g/cm³ | 8.10 g/cm³ | | **Melting Point** | 1430°C | 1430°C | | **Thermal Conductivity** | 15.2 W/m·K | 15.5 W/m·K | | **Mean CTE (20-300°C)** | 5.0-6.0 × 10⁻⁶/°C | 4.8-5.8 × 10⁻⁶/°C | | **Electrical Resistivity** | 85 μΩ·cm | 82 μΩ·cm | | **Curie Temperature** | 250°C | 255°C | | **Specific Heat Capacity** | 450 J/kg·K | 455 J/kg·K | --- #### **3. Specialized Product Forms & Applications** **A. Custom Configurations** - **Precision Cast Components:** Investment casting for complex geometries requiring minimal machining - **Powder Metallurgy Parts:** Net-shape components with controlled porosity and uniform properties - **Metal Injection Molded Parts:** Complex small components with high dimensional accuracy - **Additive Manufacturing:** 3D printed components for prototype and production applications **B. Alternative Product Forms** - **Sputtering Targets:** High-purity targets for thin film deposition in electronic applications - **Welding Consumables:** Matching composition filler metals, electrodes, and welding wire - **Thermal Spray Powders:** For surface coating applications requiring thermal compatibility - **Clad Materials:** Multi-layer composites for specific thermal and mechanical requirements **Primary Applications:** * **Advanced Electronics:** - Multi-layer ceramic packages and substrates - RF and microwave component housings - Optoelectronic device packaging - MEMS and sensor encapsulation systems * **Specialized Industrial:** - Precision mold tools and fixtures - Laser system structural components - Measuring equipment frames and bases - Optical instrument mounting systems * **Research & Development:** - Custom experimental apparatus and fixtures - Specialized research equipment components - Prototype development and testing - Material research and validation components --- #### **4. International Standards & Cross-Reference** **Global Standard Equivalents:** | Region | Standard Designation | Equivalent Specification | | :--- | :--- | :--- | | **North America** | UNS K94680 | ASTM F30, AMS 7726 | | **Europe** | EN 1.3985 | DIN 17471, AFNOR FeNi42Co5Ti | | **Asia** | JIS C2533 | GB/T 15016, KS D3724 | | **International** | ISO 4950 | IEC 60068, MIL-DTL-23488 | **Related Alloy Specifications:** * **Kovar (ASTM F15):** - 29% Nickel, 17% Cobalt, balance Iron - Different thermal expansion characteristics - Alternative for specific temperature ranges and applications * **Invar 36 (UNS K93600):** - 36% Nickel, balance Iron - Lower thermal expansion coefficient - Different mechanical properties and applications * **Alloy 42 (UNS K94100):** - 42% Nickel, balance Iron - Similar thermal expansion characteristics - Different mechanical properties and processing --- #### **5. Special Applications & Custom Solutions** **Emerging Applications:** - **Quantum Computing:** Cryogenic system components and mounting structures - **Space Technology:** Satellite thermal management systems and structural components - **Medical Imaging:** MRI and CT scanner components requiring dimensional stability - **Advanced Communications:** 5G and RF component packaging and thermal management **Custom Engineering Services:** - **Material Development:** Tailored alloy compositions for specific applications - **Process Optimization:** Custom heat treatment cycles for optimal properties - **Application Testing:** Performance validation and qualification services - **Technical Consulting:** Design and manufacturing support for critical applications **Quality Assurance Protocols:** - **Advanced Characterization:** SEM/EDS analysis and microstructural evaluation - **Performance Testing:** Thermal cycling, mechanical testing, and environmental validation - **Certification Packages:** Comprehensive documentation meeting industry requirements - **Traceability Systems:** Full material history tracking and quality records --- #### **6. Technical Advantages & Future Development** **Key Performance Benefits:** - **Exceptional Thermal Stability:** Maintains dimensional accuracy across wide temperature ranges - **High Strength-to-Weight Ratio:** Superior mechanical properties in precipitation hardened condition - **Proven Reliability:** Extensive track record in critical applications across multiple industries - **Manufacturing Versatility:** Suitable for various processing methods and fabrication techniques **Future Development Directions:** - **Enhanced Formulations:** Improved thermal and mechanical properties through advanced alloy design - **Advanced Processing:** New manufacturing techniques including additive manufacturing - **Specialized Variants:** Application-specific alloy modifications for emerging technologies - **Sustainable Solutions:** Environmentally friendly processing methods and recycling technologies **Research Initiatives:** - Improved thermal cycling performance and fatigue resistance - Enhanced manufacturing characteristics and processing windows - Advanced joining technologies and compatibility with other materials - Next-generation alloy development for extreme environment applications --- #### **Why Choose Our Comprehensive Alloy 43PH Solutions?** * **Technical Expertise:** Deep understanding of low expansion alloy technology and applications * **Manufacturing Flexibility:** Multiple product forms and custom manufacturing capabilities * **Quality Leadership:** Stringent quality control and comprehensive certification programs * **Innovation Focus:** Continuous development of new solutions and processing technologies * **Global Support:** Worldwide technical service and reliable supply chain management * **Proven Performance:** Extensive application experience across aerospace, electronics, and industrial sectors **Specialized Capabilities:** - Custom alloy development and composition refinement - Specialized heat treatment processes and parameter optimization - Advanced manufacturing techniques and process development - Comprehensive testing and validation services - Technical documentation support and application engineering **Contact our advanced materials team** to explore custom solutions for your specific low expansion alloy requirements. We provide comprehensive technical support from material selection through process optimization, ensuring optimal performance for your most demanding applications in aerospace, electronics, scientific research, and precision engineering industries. Our expertise in Alloy 43PH and related specifications enables us to deliver solutions that meet your exact requirements for thermal management and structural performance.

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 2778 gallon liquid totes Special package is available on request.