Alloy 43ph，Low expansion 43Ph Alloy Foil，Shim，,E FORU

British Specs:，American Specs:，German Specs:

### **Product Introduction: Alloy 43PH / Low Expansion 43PH Alloy Foil & Shim** **Precision Thin-Gauge Materials for High-Strength Thermal Management Applications** **Alloy 43PH Foil and Shim** represent the ultimate refinement in precipitation-hardenable low expansion alloy technology, offering exceptional dimensional stability combined with superior mechanical strength in ultra-thin configurations. These precision-engineered materials combine the proven thermal characteristics of Alloy 43PH with exacting dimensional control, making them ideal for applications in aerospace, electronics, and precision instrumentation where space constraints, thermal stability, and mechanical reliability are critical requirements. --- #### **1. Chemical Composition (Weight %)** | Element | Content (%) | Control Purpose | | :--- | :--- | :--- | | **Nickel (Ni)** | 42.0 - 43.0 | Primary expansion control | | **Cobalt (Co)** | 5.0 - 6.0 | Precipitation hardening control | | **Titanium (Ti)** | 2.0 - 2.5 | Primary strengthening element | | **Aluminum (Al)** | 0.5 - 0.8 | Secondary strengthening | | **Iron (Fe)** | Balance | Matrix formation | | **Manganese (Mn)** | 0.50 max | Deoxidation control | | **Silicon (Si)** | 0.30 max | Surface quality | | **Carbon (C)** | 0.05 max | Formability | | **Chromium (Cr)** | 0.20 max | Surface stability | * **Ultra-Pure Formulation:** Specially refined chemistry ensures consistent thermal expansion properties in thin gauges while maintaining excellent formability and precipitation hardening characteristics. --- #### **2. Physical Properties** | Property | Foil Specification | Shim Specification | | :--- | :--- | :--- | | **Density** | 8.10 g/cm³ | 8.10 g/cm³ | | **Melting Point** | 1430°C | 1430°C | | **Thermal Conductivity** | 15.2 W/m·K | 15.2 W/m·K | | **CTE (20-300°C)** | 5.0-6.0 × 10⁻⁶/°C | 5.0-6.0 × 10⁻⁶/°C | | **Electrical Resistivity** | 85 μΩ·cm | 85 μΩ·cm | | **Curie Temperature** | 250°C | 250°C | | **Surface Roughness** | 0.1-0.3 μm Ra | 0.2-0.5 μm Ra | --- #### **3. Mechanical Properties** | Property | Foil (Solution Treated) | Shim (Precipitation Hardened) | | :--- | :--- | :--- | | **Tensile Strength** | 85-105 ksi (586-724 MPa) | 180-220 ksi (1241-1517 MPa) | | **Yield Strength** | 50-70 ksi (345-483 MPa) | 170-200 ksi (1172-1379 MPa) | | **Elongation** | 25-35% | 8-12% | | **Hardness** | HV 180-220 | HV 380-450 | | **Flatness Tolerance** | < 1.5 mm/m | < 1.0 mm/m | --- #### **4. Product Specifications & Applications** **Foil Products (0.001-0.010" / 0.025-0.25 mm):** - **Electronic Shielding:** EMI/RFI shielding applications requiring thermal stability - **Thermal Management:** Heat spreading substrates for high-power electronics - **Medical Devices:** Implantable device components and surgical instruments - **Aerospace:** Thin-section thermal barriers and structural elements **Shim Products (0.010-0.060" / 0.25-1.52 mm):** - **Precision Spacers:** Critical gap maintenance in high-temperature applications - **Alignment Components:** Optical and mechanical alignment in instrumentation - **Thermal Barriers:** High-temperature insulation and thermal management - **Structural Support:** Miniature framework elements requiring dimensional stability **Specialized Applications:** - **Semiconductor:** Wafer processing components and handling elements - **Optics:** Laser system alignment shims and mounting components - **Medical:** Surgical instrument components and diagnostic equipment - **Research:** Experimental apparatus and precision measurement devices --- #### **5. International Standards & Specifications** **Global Standards Compliance:** - **ASTM F30:** Standard Specification for Iron-Nickel-Cobalt Alloys - **UNS K94680:** Unified Numbering System Designation - **AMS 7726:** Aerospace Material Specification - **MIL-DTL-23488:** Military Specification - **ISO 4950:** High Yield Strength Steel - **DIN 17471:** German Industrial Standard - **JIS C2532:** Japanese Industrial Standard **Quality Specifications:** - **Thickness Tolerance:** ±0.0001" to ±0.001" - **Width Tolerance:** ±0.002" to ±0.010" - **Surface Quality:** Class A to Class C available - **Flatness Standards:** ASTM A480 compliant - **Certification:** EN 10204 3.1/3.2 with full traceability **Heat Treatment Specifications:** - **Solution Treatment:** 1650-1700°F (899-927°C) - **Aging Treatment:** 900°F (482°C) for 8 hours - **Cooling Rate:** Air cool or faster - **Atmosphere Control:** Protective atmosphere recommended --- #### **6. Technical Advantages & Processing Characteristics** **Manufacturing Excellence:** - **Precision Rolling:** State-of-the-art cold rolling technology with intermediate annealing - **Surface Control:** Advanced polishing and finishing capabilities - **Heat Treatment:** Controlled atmosphere processing for optimal properties - **Quality Verification:** 100% dimensional and surface inspection **Performance Benefits:** - **Exceptional Thermal Stability:** Maintains dimensional integrity under thermal cycling - **High Strength-to-Weight Ratio:** Superior mechanical properties in thin sections - **Excellent Formability:** Suitable for complex shaping and stamping operations - **Precipitation Hardenable:** Can be heat treated for enhanced mechanical properties **Fabrication Guidelines:** - **Stamping:** Suitable for high-speed precision stamping operations - **Photochemical Etching:** Complex geometries with tight tolerances achievable - **Laser Cutting:** Precision cutting capabilities for intricate patterns - **Forming:** Excellent bend characteristics with proper tooling --- #### **Why Choose Our Alloy 43PH Foil & Shim Products?** * **Premium Quality:** Strict control of chemical composition and microstructure * **Precision Manufacturing:** Exceptional thickness control and surface quality * **Technical Expertise:** Comprehensive application support and guidance * **Quality Assurance:** Full traceability with certified documentation * **Global Compliance:** Meets international standards and specifications * **Proven Reliability:** Extensive track record in critical applications **Value-Added Services:** - Precision slitting to custom widths - Custom blanking and shearing services - Heat treatment processing - Special surface preparations - Protective packaging solutions **Contact our technical team** for detailed specifications and application support. We provide complete solutions for your low expansion, high strength alloy foil and shim requirements, ensuring optimal performance in your most demanding precision applications in aerospace, electronics, medical technology, and research industries.

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 2779 gallon liquid totes Special package is available on request.