Alloy 333,RA-33 Pipe,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® Pipe (UNS N06333)** ### **Overview** Alloy 333 (UNS N06333), commercially known as **RA-333®**, is a nickel-chromium-iron-molybdenum-tungsten superalloy specifically engineered for extreme high-temperature applications. Its exceptional resistance to oxidation, carburization, and thermal shock makes it ideal for piping systems in aggressive industrial environments, with sustained performance up to **1200°C (2200°F)**. --- ### **Chemical Composition (Weight %)** | Element | Content (%) | Role | |---------|-------------|------| | Nickel (Ni) | 44–48 | Austenitic matrix, corrosion resistance | | Chromium (Cr) | 24–27 | Oxidation & sulfidation resistance | | Iron (Fe) | 15–20 | Solid solution strengthening | | Molybdenum (Mo) | 2.5–4.0 | Resistance to reducing environments | | 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 (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% - **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 long-term performance --- ### **Product Applications** 1. **Industrial Furnaces**: - Radiant tubes, retorts, and muffles - Heat treatment furnace piping - Carburizing and annealing atmosphere lines 2. **Chemical & Petrochemical Processing**: - High-temperature reactor transfer lines - Catalyst regeneration systems - Pyrolysis and reformer furnace piping 3. **Power Generation**: - Heat recovery steam generators (HRSG) - Gas turbine exhaust systems - High-temperature steam and flue gas ducting 4. **Aerospace & Defense**: - Test cell exhaust systems - Engine test stand piping - Thermal management systems 5. **Glass & Ceramics Manufacturing**: - Glass melting furnace piping - Kiln atmosphere systems --- ### **Fabrication Characteristics** - **Welding**: Excellent weldability using GTAW/TIG or GMAW/MIG with matching filler metals (e.g., ERNiCrMo-XX). - **Forming**: Hot bending recommended for tight radii; minimum bend radius = 3× pipe diameter. - **Machining**: Use positive rake angles and sharp tools; speeds of 10–20 m/min (30–65 SFM) are typical. --- ### **International Standards** | Standard Organization | Standard Number | Description | |----------------------|-----------------|-------------| | **ASTM** | B622/B619 | Seamless and Welded Nickel-Alloy Pipe | | **ASME** | SB-622/SB-619 | Code-approved for pressure applications | | **UNS** | N06333 | Unified Numbering System | | **DIN** | 2.4608 | Material Number 2.4608 | | **ISO** | 6207 | Nickel alloy pipes for general purposes | --- ### **Quality Assurance** - Hydrostatic testing per ASTM/ASME standards - Non-destructive testing (UT, ET) available - Chemical and mechanical certification per EN 10204 3.1/3.2 --- ### **Key Advantages** 1. **Exceptional high-temperature strength** (up to 1200°C) 2. **Superior oxidation and carburization resistance** 3. **Excellent thermal stability and cyclic oxidation resistance** 4. **Good fabricability and weldability** 5. **Resistance to sulfidation and chloride stress corrosion** --- **Notes:** - “RA-333” is a registered trademark of Rolled Alloys. - Consult technical experts for specific application requirements. - Properties may vary based on manufacturing process and heat treatment.

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 2914 gallon liquid totes Special package is available on request.