Alloy N,Hastelloy N Pipe,UNS N10003,E FORU

British Specs:，American Specs: AMS 5771 Bar and Forging AMS 5607 Sheet, Strip and Plate，German Specs:

**Product Data Sheet: Alloy N / Hastelloy® N Pipe (UNS N10003)** **Nickel-Molybdenum-Chromium Alloy Pipe for High-Temperature Corrosive Service** --- ### **1. Product Overview** **Hastelloy® N Pipe** (UNS N10003) is a nickel-molybdenum-chromium alloy piping product specifically engineered for handling highly corrosive media in extreme high-temperature environments. Available in both seamless and welded configurations, this pipe offers exceptional resistance to molten fluoride salts, oxidizing atmospheres, and other aggressive media at elevated temperatures, making it ideal for nuclear reactors, chemical processing, and advanced energy systems. --- ### **2. Chemical Composition (Typical % by Weight)** | Element | Content (%) | Function | |---------|-------------|----------| | Nickel (Ni) | Balance | Base element providing high-temperature strength and stability | | Molybdenum (Mo) | 15.0-18.0 | Enhances strength and corrosion resistance in reducing environments | | Chromium (Cr) | 6.0-8.0 | Provides oxidation resistance at high temperatures | | Iron (Fe) | 5.0 max | Controlled for optimal thermal stability | | Silicon (Si) | 1.0 max | Enhances oxidation resistance | | Manganese (Mn) | 0.80 max | Deoxidizer and process control | | Aluminum (Al) | 0.50 max | Improves oxidation resistance | | Carbon (C) | 0.04-0.08 | Optimizes high-temperature strength | | Cobalt (Co) | 0.20 max | Controlled impurity | | Boron (B) | 0.010 max | Controlled for nuclear applications | | Sulfur (S) | 0.015 max | Minimized to prevent hot cracking | --- ### **3. Physical & Mechanical Properties** | Property | Value (Typical) | |----------|-----------------| | Density | 8.86 g/cm³ | | Melting Point | 1330-1360°C (2426-2480°F) | | Thermal Conductivity | 14.2 W/m·K at 20°C | | Coefficient of Thermal Expansion | 12.3 μm/m·K (20-100°C) | | Specific Heat Capacity | 448 J/kg·K at 20°C | | Modulus of Elasticity | 217 GPa at 20°C | | **Room Temperature Mechanical Properties** | | | Tensile Strength | 690-895 MPa | | Yield Strength (0.2% Offset) | 310-620 MPa | | Elongation | 35-55% | | Hardness (Rockwell B) | 85-100 HRB | | **High-Temperature Mechanical Properties (760°C/1400°F)** | | | Tensile Strength | 380-480 MPa | | Yield Strength | 240-340 MPa | | Creep Rupture Strength (1000h, 815°C) | 55 MPa | --- ### **4. Product Applications** #### **4.1 Nuclear Energy Systems** - **Molten Salt Reactor Piping**: Primary and secondary coolant circuits - **Reactor Core Cooling**: Pipework for advanced reactor designs - **Fuel Salt Transfer**: Piping for fuel salt circulation systems - **Nuclear Waste Processing**: Equipment for radioactive waste handling #### **4.2 Chemical Processing Industry** - **High-Temperature Process Piping**: For corrosive chemical processes - **Acid Production Systems**: Piping for sulfuric and nitric acid service - **Catalyst Transfer Lines**: High-temperature catalyst circulation - **Reactor Feed Systems**: Corrosive chemical feed lines #### **4.3 Advanced Energy Systems** - **Concentrated Solar Power**: Heat transfer fluid piping - **Advanced Power Cycles**: High-temperature working fluid conduits - **Heat Storage Systems**: Piping for thermal energy storage - **Hydrogen Production**: High-temperature process piping #### **4.4 Industrial Applications** - **High-Temperature Furnaces**: Process gas and cooling lines - **Heat Treatment Equipment**: Protective atmosphere piping - **Glass Manufacturing**: High-temperature process piping - **Research Facilities**: Specialized high-temperature systems --- ### **5. Key Features & Benefits** - **Exceptional Molten Salt Resistance**: Superior performance in fluoride salt environments up to 815°C - **High-Temperature Capability**: Maintains mechanical integrity up to 980°C - **Excellent Oxidation Resistance**: Outstanding performance in oxidizing atmospheres - **Good Fabricability**: Can be welded, bent, and formed using standard techniques - **Optimized Wall Thickness**: Consistent wall distribution for maximum service life - **Thermal Stability**: Resists thermal aging and embrittlement - **Nuclear Grade Available**: Suitable for nuclear applications with proper certification - **Long Service Life**: Extended performance in demanding high-temperature environments --- ### **6. International Standards & Specifications** | Standard Type | Specification Number | Description | |---------------|----------------------|-------------| | ASTM | B622 | Standard Specification for Seamless Nickel and Nickel Alloy Pipe | | ASTM | B619 | Standard for Welded Nickel and Nickel Alloy Pipe | | UNS | N10003 | Unified Numbering System Designation | | ASME | SB-622 | Code Case for Pressure Vessel Applications | | DIN | 2.4853 | Material Number and Specification | | EN | 2.4853 | European Standard Designation | | ISO | 6207 | Seamless and Welded Tubes for Pressure Purposes | --- ### **7. Product Specifications** #### **7.1 Pipe Types & Sizes** - **Seamless Pipe**: OD 6mm to 250mm, Wall thickness 1.0mm to 25mm - **Welded Pipe**: OD 15mm to 600mm, Wall thickness 1.5mm to 12mm - **Schedule**: 5S, 10S, 40S, 80S, and custom schedules available - **Length**: Standard 3-8 meters; custom lengths and cut-to-size available #### **7.2 Technical Specifications** - **OD Tolerance**: ±1% or ±0.1mm, whichever is greater - **Wall Thickness Tolerance**: ±10% for seamless, ±7.5% for welded - **Straightness**: ≤1.5mm per meter - **Surface Finish**: Pickled, bright annealed, or beveled ends for welding --- ### **8. Fabrication & Installation Guidelines** #### **8.1 Cutting & Preparation** - **Cutting Methods**: Band saw, abrasive wheel, or plasma cutting recommended - **End Preparation**: Machine bevels to specified welding procedure requirements - **Cleaning**: Remove all contaminants from internal and external surfaces before welding - **Inspection**: Verify dimensional accuracy and surface condition #### **8.2 Welding Procedures** - **Welding Methods**: GTAW (TIG) preferred for root passes - **Filler Metals**: Use matching composition filler metals - **Shielding Gases**: 100% argon for GTAW applications - **Purge Gas**: Maintain proper internal purge during welding operations - **Interpass Temperature**: Maintain below 150°C (300°F) #### **8.3 Installation & Support** - **Support Spacing**: Follow ASME B31.3 requirements for high-temperature service - **Expansion Management**: Provide adequate expansion loops and flexibility - **Insulation**: Use compatible high-temperature insulation materials - **Corrosion Protection**: Isolate from dissimilar metals where required --- ### **9. Quality Assurance & Certification** - **Material Certification**: EN 10204 3.1/3.2 with full traceability - **Testing Protocols**: Hydrostatic testing, eddy current, ultrasonic examination - **Chemical Analysis**: Verified by spectrometer and wet chemical methods - **Mechanical Testing**: Tensile, hardness, and flattening tests as required - **Nuclear Certification**: NQA-1 compliance available for nuclear applications - **Certifications**: ISO 9001, ASME, NORSOK compliance - **Documentation**: Complete certification package including heat treatment records --- **Disclaimer**: The technical information provided represents typical values and is for reference purposes. Actual properties may vary based on manufacturing process, pipe size, and heat treatment condition. Users must verify suitability for specific applications through appropriate testing and consult with technical experts for pressure-containing and nuclear applications. Hastelloy® is a registered trademark of Haynes International. Compliance with all applicable safety standards, codes, and regulations is mandatory.

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 2875 gallon liquid totes Special package is available on request.