Alloy PE16,Nimonic PE16 Fittings,,E FORU

British Specs: BS HR55 BS HR207，American Specs:，German Specs: AFNOR NW 11AC

### **Product Data Sheet: Alloy PE16 / Nimonic PE16 Fittings (UNS N07115)** **Overview** **Alloy PE16** (commercially known as **Nimonic PE16**) is a precipitation-hardenable nickel-chromium-iron superalloy designed for high-temperature service. In the form of **fittings**, this material provides **good creep strength, excellent oxidation resistance, and reliable performance** in high-temperature piping and tubing systems operating up to 700°C (1290°F). Nimonic PE16 fittings are precision-manufactured to ensure leak-proof connections and long-term reliability in moderately high-temperature environments. These components maintain structural integrity under combined thermal and mechanical stresses, making them suitable for various industrial fluid and gas handling systems where cost-effectiveness and performance are balanced. --- #### **1. Chemical Composition** | Element | Content (%) (Typical) | Role in the Alloy | | :--- | :--- | :--- | | **Nickel (Ni)** | Balance | Austenitic matrix; provides corrosion resistance and ductility | | **Chromium (Cr)** | 15.0 - 17.0 | Confers oxidation and corrosion resistance | | **Iron (Fe)** | 32.0 - 38.0 | Enhances fabricability and cost-effectiveness | | **Molybdenum (Mo)** | 2.5 - 3.5 | Provides solid solution strengthening | | **Titanium (Ti)** | 1.0 - 1.8 | Primary precipitation hardener (forms γ' phase) | | **Aluminum (Al)** | 1.0 - 1.8 | Secondary precipitation hardener | | **Carbon (C)** | 0.05 - 0.10 | Forms carbides for grain boundary strength | | **Boron (B)** | 0.001 - 0.010 | Strengthens grain boundaries | | **Manganese (Mn)** | 0.50 max | Controls sulfur content | | **Silicon (Si)** | 0.50 max | Improves oxidation resistance | --- #### **2. Physical Properties** | Property | Value / Condition | | :--- | :--- | | **Density** | 8.00 g/cm³ (0.289 lb/in³) | | **Melting Range** | 1350 - 1400°C (2460 - 2550°F) | | **Specific Heat** | 450 J/kg·K (0.107 Btu/lb·°F) @ 20°C | | **Thermal Conductivity** | 12.0 W/m·K (83.2 Btu·in/hr·ft²·°F) @ 20°C | | **Mean Coefficient of Thermal Expansion** | 14.5 × 10⁻⁶/°C (20-500°C) | | | 16.2 × 10⁻⁶/°C (20-800°C) | | **Electrical Resistivity** | 1.15 μΩ·m @ 20°C | | **Modulus of Elasticity** | 200 GPa (29.0 × 10⁶ psi) @ 20°C | --- #### **3. Mechanical Properties** **Typical Room Temperature Properties (Heat Treated Condition)** * **Tensile Strength:** 800-1000 MPa (116-145 ksi) * **Yield Strength (0.2% Offset):** 500-700 MPa (73-102 ksi) * **Elongation:** 20-30% **Pressure Rating:** * **Maximum Working Pressure:** Temperature-dependent design * **Burst Pressure:** Typically 3-4 times maximum working pressure * **Design Standards:** ASME B31.1, B31.3 applicable --- #### **4. Product Types & Specifications** **Fitting Types Available:** * **Butt-Weld Fittings:** Elbows (45°, 90°), tees, reducers, caps * **Socket-Weld Fittings:** Unions, elbows, tees, couplings * **Threaded Fittings:** Nipples, couplings, adapters, plugs * **Flanged Components:** Special high-temperature flanges **Size Range:** * **Butt-Weld:** 1/2" to 8" NB (Nominal Bore) * **Socket-Weld:** 1/8" to 2" NB * **Threaded:** 1/8" to 2" NB * **Flanges:** 1/2" to 8" NB **Standards Compliance:** * ASME B16.9, B16.11, B16.28 * MSS SP-43, SP-97 * DIN 2605, 2615, 2616 * Customer-specific specifications --- #### **5. Key Characteristics** * **Good High-Temperature Strength:** Suitable for service up to 700°C * **Excellent Oxidation Resistance:** Performs well in oxidizing atmospheres * **Pressure Integrity:** Reliable performance in moderate-pressure systems * **Thermal Fatigue Resistance:** Good performance under thermal cycling conditions * **Good Weldability:** Can be welded using conventional methods * **Cost-Effective:** Economical alternative to higher-nickel superalloys * **Stable Microstructure:** Maintains properties during long-term exposure * **Dimensional Accuracy:** Precision machining for proper fit-up --- #### **6. Product Applications** Nimonic PE16 fittings are used in high-temperature piping systems: * **Power Generation:** * **Steam turbine systems** * **Boiler feedwater systems** * **Heat recovery systems** * **Auxiliary power systems** * **Industrial Processing:** * **Heat treatment furnace piping** * **Thermal oil systems** * **Chemical processing lines** * **Process heating systems** * **Petrochemical:** * **Refinery process piping** * **Catalyst regeneration systems** * **Reformer furnace piping** * **Nuclear Industry:** * **Nuclear fuel processing systems** * **Reactor coolant piping** * **Auxiliary nuclear systems** --- #### **7. International Standards** | Standard Type | Standard Number | Description | | :--- | :--- | :--- | | **Unified Numbering System** | **UNS N07115** | All product forms | | **ASTM** | **ASTM B366** | Standard Specification for Factory-Made Wrought Nickel Alloy Fittings | | **British Standard** | **BS 3076** | Nickel Alloy Fittings Specifications | | **European** | **EN 10253** | Butt-welding pipe fittings | | **Werkstoff Nr.** | **2.4950** | Material number | | **ASME** | **SB-366** | ASME Code Case for pressure applications | --- #### **8. Fabrication & Quality Assurance** **Manufacturing Processes:** * Hot forging and machining * Precision investment casting * Cold forming for specific configurations * Full heat treatment after forming **Welding Requirements:** * **Process:** GTAW (TIG) preferred * **Filler Metal:** Matching composition or AWS A5.14 ERNiCrFe-7 * **Preheat:** Generally not required * **Post-Weld Heat Treatment:** Recommended for optimal properties **Quality Assurance:** * Dimensional verification * Liquid penetrant testing * Pressure testing * Material certification * Heat treatment records * Surface finish inspection --- **Summary** **Alloy PE16 Fittings (Nimonic PE16, UNS N07115)** represent a cost-effective solution for high-temperature piping systems where reliability and economic viability are important considerations. Their good creep strength and oxidation resistance at temperatures up to 700°C make them suitable for various industrial applications in power generation, petrochemical, nuclear, and general processing industries. The fittings are manufactured to ensure proper fit-up and long-term reliability while providing the balanced high-temperature properties that make Nimonic PE16 a practical choice for moderately demanding service conditions. Compliance with international standards including ASTM B366, BS 3076, and EN 10253 ensures consistent quality and reliability for industrial applications. Proper manufacturing techniques, adequate quality assurance, and adherence to welding procedures ensure optimal performance throughout the service life of the piping system, making Nimonic PE16 fittings an economical choice for engineers designing systems that must operate reliably under moderately high thermal and pressure conditions while maintaining cost-effectiveness and good manufacturability.

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 2178 gallon liquid totes Special package is available on request.