Alloy 86,Nimonic 86 Bar(Round bar, Flat bar),,E FORU

British Specs:，American Specs:，German Specs:

### Technical Datasheet: Alloy 86 / Nimonic 86 Bar **Round Bar & Flat Bar** --- #### **1. Introduction** **Alloy 86** (commercially known as **Nimonic 86**) is a nickel-chromium-cobalt superalloy designed for extreme high-temperature service in aggressive environments. Available as **round bar** and **flat bar**, this material offers exceptional oxidation, carburization, and sulfidation resistance at temperatures up to **1150°C (2100°F)**. These product forms are ideal for machining, forging, and fabricating structural components that must withstand severe thermal and corrosive conditions. --- #### **2. Chemical Composition (Weight %)** | Element | Content (%) | Role in the Alloy | |---------|-------------|-------------------| | **Nickel (Ni)** | Balance | Austenitic matrix, high-temperature stability | | **Chromium (Cr)** | 24.0–27.0 | Superior oxidation and corrosion resistance | | **Cobalt (Co)** | 15.0–20.0 | Solid solution strengthening | | **Iron (Fe)** | ≤ 7.0 | Residual element | | **Carbon (C)** | 0.05–0.10 | Grain boundary strengthening | | **Silicon (Si)** | 0.2–0.6 | Oxidation resistance enhancement | | **Manganese (Mn)** | ≤ 0.5 | Deoxidation | | **Titanium (Ti)** | ≤ 0.5 | Residual element | | **Copper (Cu)** | ≤ 0.5 | Residual element | | **Aluminum (Al)** | ≤ 0.5 | Residual element | | **Zirconium (Zr)** | ≤ 0.05 | Creep property enhancement | | **Boron (B)** | ≤ 0.005 | Grain boundary strengthening | --- #### **3. Physical Properties** | Property | Value | Condition | |----------|-------|-----------| | **Density** | 8.16 g/cm³ (0.295 lb/in³) | At 20°C | | **Melting Range** | 1350–1400°C (2460–2550°F) | — | | **Thermal Expansion Coefficient** | 14.2 μm/m·°C | 20–100°C | | **Thermal Conductivity** | 12.1 W/m·K | At 20°C | | **Specific Heat** | 450 J/kg·K | At 20°C | | **Modulus of Elasticity** | 215 GPa (31.2 × 10⁶ psi) | At 20°C | --- #### **4. Mechanical Properties (Solution Annealed)** **Room Temperature Properties:** - **Tensile Strength**: 690–830 MPa (100–120 ksi) - **Yield Strength (0.2% Offset)**: 310–450 MPa (45–65 ksi) - **Elongation**: 30–45% - **Hardness**: 180–230 HB - **Impact Strength**: 40–60 J **Elevated Temperature Performance:** - **800°C (1470°F)**: Tensile Strength ≈ 450 MPa (65 ksi) - **1000°C (1830°F)**: Tensile Strength ≈ 150 MPa (22 ksi) - **1100°C (2010°F)**: Tensile Strength ≈ 80 MPa (12 ksi) **Creep Rupture Strength (1000 hours):** - **900°C (1650°F)**: ≈ 60 MPa (8.7 ksi) - **1000°C (1830°F)**: ≈ 25 MPa (3.6 ksi) --- #### **5. Key Characteristics & Advantages** - **Exceptional Oxidation Resistance**: Performs reliably in oxidizing atmospheres up to 1150°C - **Excellent Carburization Resistance**: Superior performance in carburizing environments - **Good Sulfidation Resistance**: Withstands sulfur-containing atmospheres - **High-Temperature Structural Integrity**: Maintains mechanical properties under thermal stress - **Thermal Stability**: Resists microstructural degradation during prolonged exposure - **Good Machinability**: Can be precision machined in solution annealed condition - **Versatile Product Forms**: Available in round and flat bar configurations for diverse applications --- #### **6. Product Applications** **Round Bar Applications:** - Radiant tube hangers and supports - Furnace roller shafts and axles - Heat treatment fixture components - High-temperature valve stems - Turbine support shafts - Reactor internals and agitators **Flat Bar Applications:** - Furnace rail and guide systems - Heat treatment fixture frames - Structural supports in high-temperature environments - Bracket and mounting components - Heat exchanger support structures - Process chamber structural members **Industry Applications:** - **Heat Treatment**: Fixtures, baskets, trays, and supports - **Chemical Processing**: Reactor internals, support grids, heater components - **Power Generation**: Boiler supports, turbine components, hanger systems - **Aerospace**: Engine mounts, support structures, high-temperature frames - **Glass & Ceramic**: Kiln furniture, support systems, handling equipment --- #### **7. International Standards** | Standard Organization | Standard Designation | Description | |----------------------|---------------------|-------------| | **ASTM International** | ASTM B572 | Nickel-Chromium-Iron-Molybdenum-Copper Alloy Bar | | **ASTM International** | ASTM B637 | Precipitation-Hardening Nickel Alloy Bars | | **Aerospace (SAE)** | AMS 5660 | Bars, Forgings, and Rings | | **European Standards** | EN 10095 | Heat Resisting Steels and Nickel Alloys | | **ISO** | ISO 6207 | Wrought Nickel and Nickel Alloy Bar | | **Unified Numbering** | UNS N07086 | Material Designation | --- #### **8. Product Specifications & Availability** **Round Bar Specifications:** - **Diameter Range**: 5 mm to 300 mm (0.2" to 12") - **Length**: Standard 3–6 meters (10–20 feet) - **Tolerance**: ±0.1 mm to ±0.5 mm based on diameter - **Straightness**: ≤ 1 mm per meter **Flat Bar Specifications:** - **Thickness**: 5 mm to 100 mm (0.2" to 4") - **Width**: 20 mm to 300 mm (0.8" to 12") - **Length**: Standard 3–6 meters (10–20 feet) - **Flatness**: ≤ 0.5 mm per 100 mm width **Available Conditions:** - **Hot Finished**: Black/scale surface - **Cold Finished**: Turned or ground surface - **Solution Annealed**: Optimized for machining - **Surface Finish**: As-rolled, machined, or ground --- #### **9. Heat Treatment** **Standard Heat Treatment:** - **Solution Annealing**: 1150–1180°C (2100–2150°F) for 1–2 hours, rapid cool - **Stress Relieving**: 850–900°C (1560–1650°F) for 2–4 hours, air cool **Special Considerations:** - Controlled atmosphere annealing available - Uniform heating throughout cross-section - Rapid cooling to prevent undesirable precipitation --- #### **10. Fabrication & Machining** **Machining Guidelines:** - **Optimal Condition**: Solution annealed - **Tooling**: Carbide tools with positive rake angles - **Cutting Speed**: 10–20 m/min for turning operations - **Feed Rate**: 0.1–0.3 mm/rev - **Coolant**: Required for heavy machining **Welding Procedures:** - **Preferred Method**: GTAW (TIG) - **Filler Metal**: AWS A5.14 ERNiCr-3 or matching composition - **Preheat**: Generally not required - **Post-Weld Heat Treatment**: Solution annealing recommended **Forming Operations:** - **Hot Working**: 1050–1150°C (1920–2100°F) - **Cold Working**: Possible with intermediate annealing - **Bending**: Minimum radius = 2 × thickness (flat bar) --- #### **11. Quality Assurance** - Chemical analysis certification - Mechanical testing reports - Ultrasonic testing per ASTM A388 - Dimensional verification - Surface quality inspection - Full material traceability - Compliance with international standards --- **Disclaimer:** This technical data is for informational purposes only. Properties may vary based on manufacturing process, heat treatment, and specific product form. For critical applications, consult current manufacturer technical data sheets and relevant industry standards.

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 2081 gallon liquid totes Special package is available on request.