Alloy 333,RA-33 ,UNS N06333,E FORU

British Specs:，American Specs: AMS 5717 Bar and Forgings AMS 5593 Sheet, Strip and Plate，German Specs:

**Technical Datasheet: Alloy 333 / RA-333 / UNS N06333** --- ### **Overview** Alloy 333 (UNS N06333), also known as RA-333, is a nickel-chromium-molybdenum-tungsten superalloy designed for exceptional high-temperature strength and outstanding resistance to various corrosive environments. This alloy maintains excellent mechanical properties and oxidation resistance at temperatures up to 1200°C (2200°F), making it particularly valuable in applications involving thermal cycling and aggressive atmospheres. --- ### **Chemical Composition (Weight %)** | Element | Content (%) | Role | |---------|-------------|------| | Nickel (Ni) | 44-48 | Base element, provides austenitic matrix | | Chromium (Cr) | 24-27 | Oxidation and sulfidation resistance | | Molybdenum (Mo) | 2.5-4.0 | Strength in reducing environments | | Iron (Fe) | 15-20 | Cost reduction, solid solution strengthening | | Tungsten (W) | 2.0-4.0 | High temperature strength | | Cobalt (Co) | 2.0-4.0 | Solid solution strengthening | | Silicon (Si) | 0.5-1.0 | Oxidation resistance | | Manganese (Mn) | 1.0-2.0 | Hot workability | | Carbon (C) | 0.05-0.10 | High temperature strength | | Aluminum (Al) | ≤0.5 | Deoxidizer | | Titanium (Ti) | ≤0.5 | Stabilizer | --- ### **Physical Properties** | Property | Value | |----------|-------| | Density | 8.57 g/cm³ (0.309 lb/in³) | | Melting Point | 1370°C (2500°F) | | Thermal Conductivity | 12.5 W/m·K (at 20°C) | | Coefficient of Thermal Expansion | 14.2 μm/m·°C (20-100°C) | | Specific Heat Capacity | 460 J/kg·K | | Electrical Resistivity | 1.18 μΩ·m | | Modulus of Elasticity | 211 GPa (30.6×10⁶ psi) | --- ### **Mechanical Properties** **Room Temperature (Annealed Condition):** - **Tensile Strength**: 690-760 MPa (100-110 ksi) - **Yield Strength (0.2% Offset)**: 310-380 MPa (45-55 ksi) - **Elongation**: 40-50% - **Hardness**: HRB 85-95 **Elevated Temperature Properties (815°C/1500°F):** - **Tensile Strength**: 275 MPa (40 ksi) - **Yield Strength**: 205 MPa (30 ksi) - **Creep Strength**: Excellent long-term performance --- ### **Heat Treatment** - **Solution Annealing**: 1150-1200°C (2100-2200°F) - **Rapid Cooling**: Water quench or fast air cool - **Stress Relieving**: 870-900°C (1600-1650°F) --- ### **Corrosion Resistance** - **Oxidation Resistance**: Excellent up to 1200°C (2200°F) - **Sulfidation Resistance**: Superior performance in sulfur-containing environments - **Chloride Stress Corrosion**: Highly resistant - **Carburization Resistance**: Good performance in carburizing atmospheres - **Nitriding Resistance**: Moderate resistance to nitriding environments --- ### **Product Applications** **Industrial Furnaces & Heat Treatment:** - Radiant tubes and retorts - Furnace rolls and fixtures - Heat treatment baskets - Muffles and inner covers - Thermocouple protection tubes **Chemical Processing:** - Reactor components - Heat exchanger tubing - Catalyst support grids - High-temperature valves - Pyrolysis equipment **Power Generation:** - Gas turbine components - Heat recovery systems - Boiler components - Combustion system parts **Aerospace & Defense:** - Jet engine components - Afterburner parts - Rocket motor components - High-temperature fasteners **Petrochemical:** - Reformers and crackers - Hydrotreater components - Sulfur recovery units - High-temperature piping --- ### **Fabrication Characteristics** **Machining:** - Similar to other nickel-based superalloys - Use positive rake angles and sharp tools - Rigid tooling and workpiece support required - Recommended speeds: 10-20 m/min (30-65 SFM) **Welding:** - Excellent weldability using common processes - GTAW (TIG) and GMAW (MIG) suitable - Use matching filler metals (ERNiCrMo-XX) - Post-weld heat treatment generally not required **Forming:** - Good hot and cold workability - Hot working temperature: 1050-1200°C (1920-2190°F) - Annealing between severe cold working steps --- ### **International Standards** | Standard Organization | Standard Number | Description | |----------------------|-----------------|-------------| | **ASTM** | B366 | Factory-Made Wrought Nickel Alloy Fittings | | **ASTM** | B435 | UNS N06333 Plate, Sheet, and Strip | | **ASTM** | B572 | UNS N06333 Rod | | **ASME** | SB-435 | Code-approved plate, sheet, and strip | | **ASME** | SB-572 | Code-approved rod | | **UNS** | N06333 | Unified Numbering System | | **DIN** | 2.4608 | Material Number 2.4608 | --- ### **Available Product Forms** - Plate, Sheet, and Strip - Bar and Rod - Wire - Pipe and Tube - Fittings and Flanges - Forgings --- ### **Quality Assurance** - Chemical composition certification - Mechanical property testing - Non-destructive testing available - Heat treatment certification - Dimensional verification - EN 10204 3.1/3.2 certification available --- ### **Key Advantages** 1. **Excellent High-Temperature Strength**: Maintains properties up to 1200°C 2. **Superior Oxidation Resistance**: Outstanding performance in oxidizing atmospheres 3. **Good Fabricability**: Easily welded, formed, and machined 4. **Versatile Corrosion Resistance**: Performs well in various corrosive environments 5. **Thermal Stability**: Resists thermal shock and cycling --- **Notes:** - "RA-333" is a registered trademark of Rolled Alloys - Proper material handling and storage recommended - Consult technical experts for specific application requirements - Properties may vary with product form and processing *For detailed technical assistance and application engineering support, contact materials engineering specialists.*

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 2911 gallon liquid totes Special package is available on request.