Alloy A-286，Incoloy A-286 Other/Similar Specs，,E FORU

British Specs:，American Specs:，German Specs:

### **Product Introduction: Alloy A-286 / Incoloy A-286 - Bar, Wire, Sheet, Plate, Tube, and Fasteners** **The Versatile High-Temperature Superalloy for Demanding Applications** **Alloy A-286** (commonly known under the trade name **Incoloy® A-286**) is a premier iron-nickel-chromium superalloy strengthened by precipitation hardening. It is one of the most versatile and widely used superalloys due to its exceptional combination of high yield strength, excellent oxidation resistance up to 1300°F (704°C), and good fabrication characteristics. While renowned for forgings and fittings, A-286 is available in a comprehensive range of product forms—including bar, wire, sheet, plate, tube, and fasteners—to meet the full spectrum of engineering challenges in extreme environments. This overview covers the specifications and properties of A-286 across these various forms, highlighting its adaptability and consistent performance. --- #### **1. Chemical Composition (Weight %)** The fundamental composition remains consistent across product forms, ensuring uniform performance. | Element | Content (%) | | :--- | :--- | | **Iron (Fe)** | Balance | | **Nickel (Ni)** | 24.0 - 27.0 | | **Chromium (Cr)** | 13.5 - 16.0 | | **Molybdenum (Mo)** | 1.0 - 1.5 | | **Titanium (Ti)** | 1.9 - 2.35 | | **Manganese (Mn)** | 2.0 max | | **Silicon (Si)** | 1.0 max | | **Aluminum (Al)** | 0.35 max | | **Vanadium (V)** | 0.10 - 0.50 | | **Boron (B)** | 0.001 - 0.010 | | **Carbon (C)** | 0.08 max | | **Phosphorus (P)** | 0.025 max | | **Sulfur (S)** | 0.025 max | *Note:* Minor variations in titanium or boron content may be specified in certain standards (e.g., AMS 5731 vs. AMS 5525) to optimize properties for specific product forms like wire or sheet. --- #### **2. Physical Properties** | Property | Value | | :--- | :--- | | **Density** | 0.290 lb/in³ (7.93 g/cm³) | | **Melting Range** | 2550 - 2600°F (1399 - 1427°C) | | **Specific Heat** | 0.11 Btu/lb-°F (460 J/kg-°K) | | **Thermal Conductivity** | 9.5 Btu-ft/hr-ft²-°F (at 212°F / 100°C) | | **Mean Coefficient of Thermal Expansion** | 9.2 x 10⁻⁶ per °F (16.6 x 10⁻⁶ per °K) from 70-1000°F | | **Modulus of Elasticity (Tension)** | 29.5 x 10⁶ psi (203 GPa) | --- #### **3. Mechanical Properties (Typical for Age-Hardened Condition)** Mechanical property requirements can vary slightly by product form and specific standard. The values below represent typical age-hardened conditions. | Product Form | Tensile Strength | Yield Strength (0.2%) | Elongation | | :--- | :--- | :--- | :--- | | **Bar & Forging (AMS 5731)** | 150 ksi (1035 MPa) min | 100 ksi (690 MPa) min | 15% min | | **Sheet & Strip (AMS 5525)** | 140 ksi (965 MPa) min | 85 ksi (585 MPa) min | 12% min | | **Wire (AMS 5732)** | 150 ksi (1035 MPa) min | 95 ksi (655 MPa) min | 15% min | | **Fasteners (AMS 5734)** | 150 ksi (1035 MPa) min | 100 ksi (690 MPa) min | 15% min | --- #### **4. Product Applications by Form** The application of A-286 is dictated by its product form: * **Bar Stock:** * Used for machining complex components like turbine blades, engine mounts, and pump shafts. * **Standards:** AMS 5731, ASTM A638 Gr.660. * **Wire:** * Primarily used for the manufacture of high-strength fasteners (bolts, screws, studs), springs, and welding wire. * **Standards:** AMS 5732, AMS 5736. * **Sheet, Strip & Plate:** * Fabricated into afterburner liners, combustion chambers, heat treatment fixtures, and ducting systems. * **Standards:** AMS 5525, AMS 5528. * **Tubing & Pipe:** * Used in high-temperature instrumentation and pressure systems in power plants and chemical processing. * **Standards:** ASTM A213 / ASME SA213 (for seamless tube). * **Fasteners:** * The premier choice for high-temperature bolting in jet engines, steam turbines, and nuclear applications due to high strength and resistance to stress relaxation. * **Standards:** AMS 5734, ASTM A453 Gr.660. --- #### **5. International Standards & Cross-Reference** Alloy A-286 is covered by a extensive list of international standards, with UNS S66286 and ASTM/ASME Grade 660 being the most common identifiers. | Standard Type | Standard Number & Grade | | :--- | :--- | | **Universal Designation** | **UNS S66286** | | **ASTM/ASME (Pressure Vessel)** | **ASTM A453 / ASME SA453 Grade 660** | | **Aerospace (AMS)** | **AMS 5731** (Bar, Forgings), **AMS 5525** (Sheet/Strip), **AMS 5732** (Wire), **AMS 5734** (Fasteners) | | **ASTM Product Standards** | **A638 Gr.660** (Bar), **A693 Gr.660** (Plate), **A213/ASME SA213 TP 660** (Tubing) | | **EURONORM / Werkstoff** | **1.4980, 1.4944** | | **AFNOR** | **ZbNCT25** | | **GOST** | **ЭИ787, ХН35ВТЮ** | --- #### **Similar & Competing Grades** While A-286 is unique, engineers often evaluate it against other high-temperature alloys: * **Inconel 718:** Offers higher strength and a wider service temperature range (~1300°F / 704°C), but is more expensive and has a higher nickel content. * **Inconel X-750:** Similar precipitation-hardening alloy, excellent for springs and fasteners, but with a different strengthening mechanism (Ni-Cr base). * **AISI 630 (17-4PH®):** A martensitic precipitation-hardening stainless steel. Offers high strength but significantly lower high-temperature oxidation resistance and service temperature (~600°F / 316°C) compared to A-286. * **Nimonic 80A / 90:** Nickel-based alloys with superior temperature capability but higher cost and more difficult fabrication. **Why Choose Our Alloy A-286 Products?** * **Full Product Range:** We supply A-286 in all standard forms, ensuring a consistent material source for your entire project. * **Standard Compliance:** All materials are certified to meet or exceed ASTM, AMS, ASME, and other international specifications. * **Expert Support:** Our technical team can help you select the optimal product form and specification for your specific application, whether it's for a jet engine component or a critical industrial fastener. **Contact us** for detailed technical data sheets, availability, and pricing for Alloy A-286 bar, wire, sheet, tube, fasteners, and other product forms.

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 2726 gallon liquid totes Special package is available on request.