Alloy 333,RA-33 Bar(Round bar, Flat bar),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® Bar (Round & Flat Bar) UNS N06333** --- ### **Overview** Alloy 333 Bar (UNS N06333), commercially known as RA-333®, is a nickel-chromium-iron-molybdenum-tungsten superalloy available in both round bar and flat bar forms. This alloy is specifically designed to maintain exceptional strength and corrosion resistance at high temperatures up to 1200°C (2200°F), making it ideal for structural components in severe thermal and corrosive environments. --- ### **Chemical Composition (Weight %)** | Element | Content (%) | Role | |---------|-------------|------| | Nickel (Ni) | 44-48 | Austenitic matrix foundation | | Chromium (Cr) | 24-27 | Oxidation & sulfidation resistance | | Iron (Fe) | 15-20 | Solid solution strengthening | | Molybdenum (Mo) | 2.5-4.0 | Reducing environment resistance | | 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 Range | 1370-1425°C (2500-2600°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) | | Magnetic Permeability | <1.005 (essentially non-magnetic) | --- ### **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% - **Reduction of Area**: 50-60% - **Hardness**: HRB 85-95 **Elevated Temperature Performance (815°C/1500°F):** - **Tensile Strength**: 275 MPa (40 ksi) - **Yield Strength**: 205 MPa (30 ksi) - **Creep Rupture Strength**: Excellent - **Stress Rupture Life**: Superior performance --- ### **Heat Treatment** - **Solution Annealing**: 1150-1200°C (2100-2200°F) - **Soaking Time**: 30 minutes per inch of thickness - **Cooling**: Water quench or fast air cool - **Stress Relieving**: 870-900°C (1600-1650°F) --- ### **Product Applications** **Round Bar Applications:** - Shafts and axles for high-temperature equipment - Valve stems and pump rods - Fasteners and bolting for furnace applications - Thermocouple protection tubes - Agitator shafts for chemical reactors - Support rods for heat treatment fixtures **Flat Bar Applications:** - Structural supports in furnace construction - Bearing pads and wear strips - Machine tool components - Brackets and hangers for high-temperature service - Heat exchanger support grids - Reaction chamber structural members **Industry-Specific Applications:** - **Heat Treatment Industry**: Fixture bars, tray supports, conveyor components - **Chemical Processing**: Reactor internals, mixer arms, support structures - **Power Generation**: Turbine components, boiler supports, hanger systems - **Aerospace**: Engine test stands, support structures - **Glass Manufacturing**: Mold components, handling equipment --- ### **Corrosion Resistance** - **Oxidation Resistance**: Excellent up to 1200°C (2200°F) - **Sulfidation Resistance**: Outstanding in sulfur-bearing atmospheres - **Chloride Stress Corrosion**: Highly resistant - **Carburization Resistance**: Good performance in carburizing environments - **Nitriding Resistance**: Moderate resistance - **Acid Resistance**: Good resistance to sulfuric and phosphoric acids --- ### **Fabrication Characteristics** **Machining:** - Machines similar to other nickel-chromium alloys - Use positive rake angles and sharp tools - Recommended speeds: 10-20 m/min (30-65 SFM) - Heavy, continuous feeds recommended - Rigid tooling essential **Welding:** - Excellent weldability using common processes - GTAW (TIG) and GMAW (MIG) suitable - Use matching filler metals - Pre-heat generally not required - Post-weld heat treatment optional **Hot Working:** - Hot working temperature: 1050-1200°C (1920-2190°F) - Complete forging above 950°C (1740°F) - Anneal after hot working **Cold Working:** - Good cold workability - Intermediate annealing for severe deformation - Annealing temperature: 1150-1200°C (2100-2200°F) --- ### **International Standards** | Standard Organization | Standard Number | Description | |----------------------|-----------------|-------------| | **ASTM** | B572 | UNS N06333 Rod | | **ASTM** | B435 | UNS N06333 Plate, Sheet, and Strip | | **ASME** | SB-572 | Code-approved rod specification | | **ASME** | SB-435 | Code-approved plate specification | | **SAE** | AMS 5718 | Nickel Alloy Bars and Forgings | | **UNS** | N06333 | Unified Numbering System | | **DIN** | 2.4608 | Material Number 2.4608 | --- ### **Available Specifications** **Round Bar:** - Diameters: 3 mm to 300 mm (0.125" to 12") - Lengths: 3-6 meters (10-20 feet) - Surface: Centerless ground, turned, or hot finished **Flat Bar:** - Thickness: 3 mm to 100 mm (0.125" to 4") - Width: 10 mm to 300 mm (0.375" to 12") - Lengths: Standard and custom lengths - Edges: Square, rounded, or beveled --- ### **Quality Assurance** - Complete material traceability - Chemical composition certification - Mechanical property testing - Ultrasonic testing available - Dimensional verification - Heat treatment certification - EN 10204 3.1/3.2 certification available --- ### **Key Advantages** 1. **Exceptional High-Temperature Strength**: Maintains properties up to 1200°C 2. **Superior Oxidation Resistance**: Excellent scale resistance 3. **Outstanding Fabricability**: Good machining and welding characteristics 4. **Versatile Corrosion Resistance**: Excellent in various corrosive environments 5. **Thermal Stability**: Resists thermal cycling and shock --- **Notes:** - "RA-333" is a registered trademark of Rolled Alloys - Store in clean, dry conditions - Consult technical experts for specific applications - Properties may vary with processing history *For technical assistance and application engineering, 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 2913 gallon liquid totes Special package is available on request.