Alloy C276,Hastelloy C276 Wire,UNS N10276,E FORU

British Specs:，American Specs:AMS 5750 ASTM B462 ASTM B564 ASTM B574 ASTM B575 ASTM B622 ASTM B626 (Tube *) ASTM B619 ASTM B775，German Specs:WS 2.4819

### **Product Datasheet: Alloy C-276 / Hastelloy C-276 Wire (UNS N10276)** **Alloy C-276** (commercially known as **Hastelloy C-276**) wire is a nickel-molybdenum-chromium superalloy supplied in wire form, offering exceptional corrosion resistance combined with excellent fabricability. This product form is specifically designed for welding consumables, fastener manufacturing, spring production, and other applications requiring the unique properties of Hastelloy C-276 in a versatile wire geometry. --- #### **1. Chemical Composition** The chemical composition of Hastelloy C-276 wire is precisely controlled to ensure consistent performance: | Element | Content (%) | |:---|:---| | **Nickel (Ni)** | Balance | | **Molybdenum (Mo)** | 15.0 - 17.0 | | **Chromium (Cr)** | 14.5 - 16.5 | | **Iron (Fe)** | 4.0 - 7.0 | | **Tungsten (W)** | 3.0 - 4.5 | | **Cobalt (Co)** | 2.5 max | | **Manganese (Mn)** | 1.0 max | | **Vanadium (V)** | 0.35 max | | **Silicon (Si)** | 0.08 max | | **Carbon (C)** | 0.01 max | | **Phosphorus (P)** | 0.025 max | | **Sulfur (S)** | 0.01 max | *Note: The carefully balanced composition provides exceptional resistance to both oxidizing and reducing media, while the low carbon and silicon content ensures optimal corrosion resistance in welded structures and fabricated components.* --- #### **2. Physical Properties** Hastelloy C-276 wire exhibits consistent physical properties: | Property | Value | |:---|:---| | **Density** | 8.89 g/cm³ (0.321 lb/in³) | | **Melting Range** | 1325 - 1370°C (2420 - 2500°F) | | **Coefficient of Thermal Expansion** | 11.2 × 10⁻⁶/°C (20-100°C) | | **Thermal Conductivity** | 10.2 W/m·K (at 100°C) | | **Specific Heat** | 427 J/kg·K (at 100°C) | | **Modulus of Elasticity** | 205 GPa (29.7 × 10⁶ psi) | | **Electrical Resistivity** | 1.30 μΩ·m | | **Magnetic Permeability** | <1.001 (essentially non-magnetic) | --- #### **3. Mechanical Properties** **Standard Mechanical Properties (Annealed Condition):** | Property | Value | |:---|:---| | **Tensile Strength** | 790-890 MPa (115-130 ksi) | | **Yield Strength (0.2% Offset)** | 415-515 MPa (60-75 ksi) | | **Elongation** | 50-60% | | **Reduction of Area** | 60-70% | | **Hardness** | 85-95 HRB | **Properties by Temper Condition:** | Temper Condition | Tensile Strength (MPa) | Yield Strength (MPa) | Elongation (%) | |:---|:---|:---|:---| | **Annealed** | 790-890 | 415-515 | 50-60 | | **¼ Hard** | 890-990 | 690-790 | 25-35 | | **½ Hard** | 990-1090 | 860-960 | 15-25 | | **Full Hard** | 1090-1190 | 1030-1130 | 10-20 | --- #### **4. Product Specifications** **Available Forms & Sizes:** - **Diameter Range:** 0.10 mm to 12.0 mm (0.004" to 0.472") - **Spool Sizes:** 5 kg to 500 kg spools - **Straight Lengths:** 1.0 m to 6.0 m available - **Surface Finish:** Bright, cleaned, coated, or plated **Wire Types:** - **Welding Wire:** AWS A5.14 ERNiCrMo-4 classification - **Fastener Wire:** For bolt and screw manufacturing - **Spring Wire:** High-strength corrosion-resistant springs - **Forming Wire:** For cold heading and fabrication - **Filler Wire:** For welding and cladding applications --- #### **5. Product Applications** **Welding Consumables:** - **Cladding Applications:** Corrosion-resistant surface layers - **Fabrication Welding:** Joining Hastelloy C-276 components - **Repair Welding:** Maintenance and repair of equipment - **Dissimilar Welding:** Joining different materials **Fastener Manufacturing:** - **High-Strength Bolts:** For corrosive service applications - **Studs and Nuts:** Corrosion-resistant fasteners - **Specialty Fasteners:** Custom designed components - **Threaded Rod:** For structural applications **Spring Applications:** - **Corrosion-Resistant Springs:** For harsh environments - **High-Temperature Springs:** Maintaining properties at elevated temperatures - **Instrument Springs:** Precision measurement devices - **Valve Springs:** For chemical and oil industry **Industrial Components:** - **Wire Forms:** Custom shaped components - **Screening Elements:** Filter and sieve components - **Electrical Components:** Resistance wire applications - **Medical Devices:** Surgical and implant components **Oil & Gas Industry:** - **Downhole Tools:** Wireline and logging components - **Subsea Components:** Control system elements - **Wellhead Equipment:** Fasteners and small parts - **Instrumentation:** Sensor and control components --- #### **6. International Standards** **Material Standards:** - **UNS N10276**: Unified Numbering System designation - **ASTM B574**: Standard Specification for Bar and Wire - **AWS A5.14**: Specification for Nickel Alloy Welding Electrodes - **DIN 2.4819**: German Industrial Standard - **EN 10095**: NiMo16Cr15W (European Standard) **Welding Standards:** - **AWS A5.14 ERNiCrMo-4**: Welding electrode classification - **ASME SFA-5.14**: ASME specification for welding electrodes - **ISO 18274**: Welding consumables for nickel and nickel alloys **Quality Standards:** - **ASTM E8**: Standard Test Methods for Tension Testing - **ASTM E290**: Standard Test Methods for Bend Testing - **ASTM E384**: Standard Test Method for Microindentation Hardness --- #### **7. Corrosion Resistance** **Excellent Performance In:** - **Hydrochloric Acid:** All concentrations and temperatures - **Sulfuric Acid:** Wide concentration range up to 70% - **Phosphoric Acid:** All concentrations and temperatures - **Chloride Solutions:** Superior pitting and crevice corrosion resistance - **Wet Chlorine Gas:** Outstanding performance - **Organic Acids:** Formic, acetic, and other organic acids **Corrosion Performance Data:** - **Critical Pitting Temperature:** >85°C - **Critical Crevice Temperature:** >65°C - **Pitting Resistance Equivalent Number (PREN):** ~69 - **General Corrosion Rate:** <0.1 mm/year in most aggressive media --- #### **8. Fabrication Characteristics** **Wire Drawing:** - **Drawing Capability:** Can be drawn to fine diameters - **Intermediate Annealing:** Required for severe reductions - **Surface Preparation:** Proper cleaning between draws - **Lubrication:** Specialized drawing lubricants required **Forming Operations:** - **Cold Heading:** Excellent in annealed condition - **Spring Coiling:** Suitable for various spring types - **Wire Forming:** Good for complex shapes - **Machining:** Can be machined using standard techniques **Welding Performance:** - **Weldability:** Excellent with proper procedures - **Deposition Efficiency:** High with appropriate parameters - **Bead Appearance:** Smooth and uniform - **Post-Weld Properties:** Similar to base metal --- #### **9. Heat Treatment** **Solution Annealing:** - **Temperature:** 1120-1175°C (2050-2150°F) + rapid quench - **Purpose:** To dissolve precipitated phases and restore corrosion resistance **Special Considerations for Wire:** - **Coil Annealing:** For consistent properties throughout coils - **Protective Atmosphere:** To prevent surface oxidation - **Quenching Rate:** Critical for corrosion resistance --- #### **10. Quality Assurance** **Testing & Certification:** - **Chemical Analysis:** Certified mill test reports - **Mechanical Testing:** Tensile, hardness, wrap tests - **Surface Inspection:** Visual and microscopic examination - **Dimensional Checks:** Diameter, ovality, surface quality - **Special Testing:** Corrosion tests, micrographic examination **Quality Control Parameters:** - **Diameter Tolerance:** ±1% for standard applications - **Surface Quality:** Free from defects and contamination - **Spooling Quality:** Evenly wound without tangles - **Certification:** Full traceability from melt to final wire --- #### **11. Key Advantages** * **Versatile Applications:** Suitable for welding, fasteners, springs, and formed components * **Excellent Corrosion Resistance:** Superior performance in aggressive environments * **High Strength Capability:** Maintains mechanical properties at elevated temperatures * **Good Fabricability:** Can be drawn, formed, and welded using standard methods * **Consistent Quality:** Uniform properties throughout wire length * **Industry Acceptance:** Recognized by major international standards * **Technical Support:** Comprehensive application engineering support * **Global Availability:** Multiple sources and sizes available Hastelloy C-276 wire provides manufacturers with a reliable, high-performance material solution for critical applications requiring excellent corrosion resistance, high strength, and good fabricability in demanding industrial environments across chemical processing, oil & gas, aerospace, and power generation 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 2039 gallon liquid totes Special package is available on request.