Alloy PE16,Nimonic PE16,,E FORU

### **Alloy PE16 / Nimonic® PE16** **Precipitation-Hardenable Nickel-Iron-Chromium Superalloy for High-Temperature Applications

** #### **1. Overview** 

 **Alloy PE16**, commercially known as **Nimonic® PE16**, is a precipitation-hardenable nickel-iron-chromium superalloy strengthened by γ' (gamma prime) precipitation. This alloy is characterized by its excellent combination of high-temperature strength, good corrosion resistance, and outstanding fabricability. Unlike many nickel-based superalloys, PE16 contains a significant amount of iron, making it more cost-effective while maintaining good mechanical properties up to 700°C (1292°F). It is particularly valued for its good weldability and formability. 

 #### **2. Chemical Composition (Weight %)

** The typical chemical composition of Nimonic PE16 is outlined below. 

| Element | Content (%) | Key Function | 

| :--- | :--- | :--- | 

| **Nickel (Ni)** | 34.0 - 38.0 | Forms the austenitic matrix and enables γ' precipitation hardening. | 

| **Iron (Fe)** | Balance | Provides solid-solution strengthening and reduces cost. | 

| **Chromium (Cr)** | 15.5 - 17.5 | Confers oxidation and corrosion resistance. | 

| **Molybdenum (Mo)** | 2.75 - 3.50 | Enhances strength and creep resistance through solid-solution hardening. | 

| **Titanium (Ti)** | 1.00 - 1.50 | Primary precipitation hardening element forming γ' phase (Ni₃Ti). | 

| **Aluminum (Al)** | 1.00 - 1.50 | Co-precipitates with titanium to form γ' phase (Ni₃(Al,Ti)). | 

| **Cobalt (Co)** | 1.00 max | - | 

| **Manganese (Mn)** | 0.50 max | - | 

| **Silicon (Si)** | 0.50 max | - | 

| **Carbon (C)** | 0.05 - 0.10 | Forms carbides for grain boundary strengthening. | 

| **Boron (B)** | 0.003 - 0.010 | Enhances creep strength. | 

| **Copper (Cu)** | 0.20 max | - | 

| **Sulfur (S)** | 0.015 max | - | 

 #### **3. Physical Properties** 

| Property | Value / Condition | 

| :--- | :--- | 

| **Density** | 8.03 g/cm³ (0.290 lb/in³) | 

| **Melting Range** | ~ 1360 - 1410 °C (2480 - 2570 °F) | 

| **Mean Coefficient of Thermal Expansion** | 20 - 500°C (68 - 932°F): **14.5 x 10⁻⁶/°C** (8.1 x 10⁻⁶/°F) | 

| **Thermal Conductivity** | 17.5 W/m·K (121 Btu·in/hr·ft²·°F) at 20°C (68°F) | 

| **Specific Heat** | 460 J/kg·K (0.110 Btu/lb·°F) at 20°C (68°F) | 

| **Electrical Resistivity** | 1.10 μΩ·m at 20°C (68°F) | 

| **Modulus of Elasticity (Young's Modulus)** | 206 GPa (29.9 x 10⁶ psi) at 20°C (68°F) | 

| **Magnetic Permeability** | Essentially non-magnetic in solution-treated condition. | 

 #### **4. Mechanical Properties

 (Typical for Aged Condition)** 

 | Property | At Room Temperature | At 650°C (1202°F) | 

| :--- | :--- | :--- | 

| **Tensile Strength** | 850 - 1050 MPa (123 - 152 ksi) | ~550 MPa (80 ksi) | 

| **Yield Strength (0.2% Offset)** | 550 - 750 MPa (80 - 109 ksi) | ~450 MPa (65 ksi) | 

| **Elongation (in 50 mm / 2 in)** | 20% - 30% | 15% - 25% | 

| **Hardness (Rockwell C)** | 25 - 32 HRC | - | 

 #### **5. International Standards

** Nimonic PE16 is covered by several international standards: 

* **ASTM:**  * **B 637:** Precipitation-Hardening Nickel Alloy Bars, Forgings, and Forging Stock 

* **AMS:**  * **AMS 5545:** Sheet, Strip, and Plate 

* **BS / EN:**  * **BS HR 401:** Aerospace series  

* **EN 10095:** Heat resisting steels and nickel alloys 

* **DIN:** 2.4980 (Material Number) 

* **ISO:** ISO 9723, ISO 9724 

 #### **6. Product Applications

** Nimonic PE16 is used in various high-temperature applications: 

 * **Aerospace:**  

* Gas turbine components  

* Combustion chambers  

* Afterburner parts 

* **Power Generation:

**  * Gas turbine parts  

* Heat exchangers 

* **Automotive:

**  * Turbocharger components 

* **Industrial:

**  * Fasteners  

* High-temperature springs

 #### **7. Key Characteristics & Advantages

** * **Good High-Temperature Strength** up to 700°C (1292°F) 

* **Excellent Fabricability** and weldability 

* **Good Oxidation Resistance

** * **Cost-Effective

** due to high iron content 

* **Good Thermal Fatigue Resistance

** * **Stable Microstructure

** during long-term exposure 

 --- **Disclaimer:

** *Nimonic® is a registered trademark of Rolls-Royce plc. The values provided are typical and for informational purposes only. For critical applications, always consult the official material data sheets from the supplier and relevant design codes.*

Packing of Alloy PE16,Nimonic PE16,

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 1664 gallon liquid totes Special package is available on request.