Alloy 909,Incoloy 909 Wire,UNS N19909,E FORU

British Specs:，American Specs:AMS 5884 Bars, Forgings, Rings AMS 5892 Sheet, Strip AMS 5893 Bars, Forgings, Rings，German Specs:

### **Product Datasheet: Alloy 909 / Incoloy 909 Wire (UNS N19909)** **Alloy 909** (commercially known as **Incoloy 909**) wire is a low thermal expansion, high-strength iron-nickel-cobalt superalloy produced in wire form. This product combines the unique thermal stability of Alloy 909 with the versatility of wire geometry, making it suitable for welding consumables, fasteners, and specialized components requiring precise dimensional control under thermal cycling conditions. Available in various diameters and tempers, Alloy 909 wire maintains consistent mechanical properties and thermal characteristics while offering excellent drawability and formability for manufacturing processes. --- #### **1. Chemical Composition** The chemical composition of Alloy 909 wire is carefully controlled to ensure consistent performance in drawn form: | Element | Content (%) | |:---|:---| | **Nickel (Ni)** | 38.0 - 41.0 | | **Cobalt (Co)** | 13.0 - 17.0 | | **Iron (Fe)** | Balance | | **Niobium (Nb)** | 4.5 - 5.5 | | **Titanium (Ti)** | 1.3 - 1.8 | | **Silicon (Si)** | 0.40 - 0.80 | | **Aluminum (Al)** | 0.03 max | | **Carbon (C)** | 0.04 max | | **Manganese (Mn)** | 0.50 max | | **Magnesium (Mg)** | 0.003 - 0.012 | | **Sulfur (S)** | 0.004 max | | **Phosphorus (P)** | 0.010 max | | **Boron (B)** | 0.003 max | *Note: The precise control of alloying elements ensures consistent drawability and maintains the characteristic low thermal expansion properties after final heat treatment.* --- #### **2. Physical Properties** Alloy 909 wire exhibits the same fundamental physical properties as other product forms: | Property | Value / Description | |:---|:---| | **Density** | 8.23 g/cm³ (0.297 lb/in³) | | **Melting Range** | ~1430°C (2600°F) | | **Coefficient of Thermal Expansion (CTE)** | **5.9 - 7.1 × 10⁻⁶/°C** (20-400°C) | | **Thermal Conductivity** | 11.5 W/m·K (at 100°C) | | **Specific Heat** | 460 J/kg·K (at 100°C) | | **Modulus of Elasticity** | 148 GPa (21.5 × 10⁶ psi) | | **Magnetic Permeability** | Essentially non-magnetic | | **Electrical Resistivity** | 1.05 μΩ·m | --- #### **3. Product Specifications & Mechanical Properties** **Available Forms:** - **Wire Diameter:** 0.010" - 0.500" (0.25 - 12.7 mm) - **Temper Conditions:** Annealed, 1/4 Hard, 1/2 Hard, Full Hard - **Surface Finish:** Bright, cleaned, or special coated - **Spool Sizes:** Standard industrial spools and custom packaging **Typical Mechanical Properties by Temper Condition:** | Temper Condition | Tensile Strength (MPa) | Yield Strength (MPa) | Elongation (%) | |:---|:---|:---|:---| | **Annealed** | 690 - 830 | 275 - 410 | 30 - 40 | | **1/4 Hard** | 830 - 965 | 690 - 825 | 12 - 20 | | **1/2 Hard** | 965 - 1100 | 895 - 1030 | 8 - 15 | | **Full Hard** | 1100 - 1240 | 1030 - 1170 | 4 - 10 | **Welding Wire Properties (as-deposited):** - **Tensile Strength:** 1100 - 1240 MPa - **Yield Strength:** 960 - 1100 MPa - **Elongation:** 12% - 18% --- #### **4. Product Applications** **Welding Consumables:** - **Repair and Fabrication:** For joining Alloy 909 components - **Cladding Applications:** For thermal barrier surfaces - **Aerospace Welding:** Critical joints in engine and airframe components **Fastener Manufacturing:** - **High-Temperature Bolts and Screws:** Maintaining clamp load under thermal cycling - **Specialty Pins and Rivets:** For precision assemblies - **Retaining Components:** In thermally dynamic environments **Industrial Components:** - **Springs and Formed Wire Parts:** For high-temperature applications - **Electrical Resistance Components:** Utilizing controlled resistivity - **Thermal Management Elements:** In precision instruments **Nuclear Applications:** - **Instrumentation Wires:** For reactor monitoring systems - **Sealing Components:** Maintaining integrity under radiation and thermal exposure --- #### **5. International Standards** **Material Standards:** - **UNS N19909**: Unified Numbering System designation - **AMS 5891**: Aerospace Material Specification (covers wire form) - **ASTM B710**: Standard Specification for Nickel-Iron-Chromium Alloy Welding Wire - **AWS A5.14**: American Welding Society Specification for Nickel Alloy Electrodes **Quality & Testing Standards:** - **ASTM E8**: Standard Test Methods for Tension Testing of Metallic Materials - **ASTM E353**: Standard Test Methods for Chemical Analysis of Stainless Steel - **MIL-STD-1537**: Military Standard for Wire and Wire Products **Diameter Tolerances (per AMS 5891):** | Diameter Range | Tolerance (±) | |:---|:---| | 0.010" - 0.020" | 0.0005" | | 0.020" - 0.040" | 0.0010" | | 0.040" - 0.125" | 0.0015" | | 0.125" - 0.500" | 0.0020" | --- #### **6. Key Advantages for Wire Applications** * **Consistent Drawability:** Excellent processability to fine diameters without cracking * **Controlled Thermal Expansion:** Maintains dimensional stability in wire form applications * **Age-Hardenable:** Can be supplied in various tempers for different manufacturing needs * **Excellent Weldability:** Produces sound, crack-resistant welds with matching properties * **Surface Quality:** Available with controlled surface finishes for specific applications * **Fatigue Resistance:** Maintains integrity under cyclic loading conditions --- #### **7. Processing & Handling Guidelines** **Heat Treatment:** Wire products are typically supplied in the annealed condition for forming operations, with subsequent age-hardening (720°C for 8 hours, furnace cool to 620°C, hold 8 hours) to achieve final mechanical properties. **Welding Parameters:** - **Process:** GTAW (TIG), GMAW (MIG), SAW - **Shielding Gas:** 100% Argon or Argon-Helium mixtures - **Preheat:** Generally not required - **Interpass Temperature:** 150°C maximum **Forming & Fabrication:** - Suitable for cold heading, spring coiling, and other wire forming processes - Can be machined using standard techniques for high-strength alloys - Compatible with various plating and coating processes for specific applications Alloy 909 wire provides manufacturers with a versatile material solution for critical applications where thermal stability, high strength, and reliable performance are essential. Its combination of unique thermal properties and excellent mechanical characteristics makes it indispensable for advanced aerospace, energy, and precision engineering applications.

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 2000 gallon liquid totes Special package is available on request.