Alloy 230,Haynes 230 Pipe,UNS N06230,E FORU

British Specs:，American Specs:AMS 5878 Sheet, Strip and Plate AMS 5891 Bar and Forgings，German Specs:DIN 17744 No 2.4733,NiCr22W14Mo

**Technical Data Sheet: Alloy 230 / Haynes 230 Pipe / UNS N06230** **Nickel-Chromium-Tungsten-Molybdenum Superalloy Pipe Product** --- ### **1. Product Overview** Alloy 230 Pipe (commercially known as **Haynes 230 Pipe**, UNS N06230) is engineered for high-temperature piping systems requiring exceptional strength and corrosion resistance. This nickel-chromium-tungsten-molybdenum superalloy maintains excellent mechanical properties and oxidation resistance at temperatures up to **1200°C (2192°F)**, making it ideal for critical fluid and gas handling applications in aggressive environments including aerospace, power generation, and industrial processing. --- ### **2. Chemical Composition (Weight %)** | Element | Content (%) | Key Characteristics | |---------|-------------|---------------------| | Nickel (Ni) | Balance | Austenitic matrix formation | | Chromium (Cr) | 20.0-24.0 | Oxidation and corrosion resistance | | Tungsten (W) | 13.0-15.0 | Solid-solution strengthening | | Molybdenum (Mo) | 1.0-3.0 | Solid-solution strengthening | | Iron (Fe) | ≤3.0 | Residual element | | Cobalt (Co) | ≤5.0 | Residual element | | Manganese (Mn) | ≤0.50 | Hot workability | | Silicon (Si) | ≤0.40 | Residual element | | Aluminum (Al) | 0.20-0.50 | Oxidation resistance | | Carbon (C) | 0.05-0.15 | Carbide strengthening | | Lanthanum (La) | 0.005-0.050 | Oxide scale adhesion | | Boron (B) | 0.001-0.010 | Grain boundary strength | --- ### **3. Physical Properties** | Property | Value | |----------|-------| | Density | 8.97 g/cm³ (0.324 lb/in³) | | Melting Range | 1330-1380°C (2426-2516°F) | | Thermal Conductivity | 11.6 W/m·K at 100°C | | Coefficient of Thermal Expansion | 12.4 μm/m·°C (20-100°C) | | Electrical Resistivity | 1.24 μΩ·m at 25°C | | Magnetic Permeability | Essentially non-magnetic | --- ### **4. Mechanical Properties** **Room Temperature Properties (Annealed Condition):** - **Tensile Strength:** 795 MPa min (115 ksi min) - **Yield Strength (0.2% Offset):** 345 MPa min (50 ksi min) - **Elongation:** 40% min - **Hardness:** 85-100 HRB **Elevated Temperature Performance:** - **Stress Rupture Strength:** 55 MPa at 980°C for 100 hours - **Creep Strength:** 40 MPa at 1000°C for 1000 hours - **Maximum Working Pressure:** Varies with temperature and pipe size - **Excellent thermal fatigue resistance** --- ### **5. Product Specifications** **Pipe Size Range:** - **Outside Diameter:** 6 mm to 300 mm (0.25" to 12") - **Wall Thickness:** Schedule 5S to XXS - **Length:** Random 3-7 meters, cut lengths per requirement **Manufacturing Processes:** - **Seamless Pipe:** ASTM B622 for maximum integrity - **Welded Pipe:** ASTM B619 for larger diameters - **Surface Finish:** Pickled, polished, or as-drawn **Pressure Ratings:** - **ASME B31.3:** Compliant for process piping - **Temperature-Pressure Ratings:** Available upon request - **Design Standards:** Per applicable industry codes --- ### **6. Applications** **Aerospace & Defense:** - Jet engine exhaust ducts - Afterburner fuel lines - Environmental control systems - Hydraulic line protection sleeves **Power Generation:** - Gas turbine fuel manifolds - Heat recovery steam generator tubing - High-temperature steam lines - Exhaust gas recirculation systems **Industrial Processing:** - Heat treatment furnace piping - Chemical process transfer lines - Nuclear reactor instrumentation lines - Thermal oxidizer systems **Other Applications:** - Petrochemical processing - Pollution control equipment - Semiconductor manufacturing - Heat treating equipment --- ### **7. International Standards** | Standard Type | Standard Number | Specification | |---------------|-----------------|---------------| | UNS | N06230 | Material designation | | ASTM | B622 | Seamless Pipe and Tube | | ASTM | B619 | Welded Pipe | | ASME | SB-622 | Boiler and Pressure Vessel Code | | AMS | 5878 | Sheet, Strip, and Plate | | EN/DIN | 2.4733 | European designation | --- ### **8. Fabrication & Installation** **Welding Procedures:** - **Recommended Process:** GTAW (TIG) - **Filler Metal:** AWS A5.14 ERNiCrWMo-1 - **Preheat:** Not required - **Post-Weld Heat Treatment:** Generally not required **Pipe Fitting & Joining:** - **Butt Welding:** ASME B16.25 preparation - **Flanged Connections:** ASME B16.5 compatible - **Threaded Connections:** NPT threads available **Installation Guidelines:** - **Support Spacing:** Per ASME B31.1/B31.3 - **Thermal Expansion:** Allow for adequate expansion - **Insulation:** Compatible with standard materials --- ### **9. Quality Assurance** **Standard Testing:** - Hydrostatic or pneumatic testing - Eddy current or ultrasonic examination - Dimensional verification per ASTM standards - Chemical and mechanical certification **Special Requirements:** - 100% radiography for critical applications - PMI (Positive Material Identification) - Surface contamination testing - Cryogenic testing if required --- ### **10. Technical Advantages** - **Superior high-temperature strength** compared to stainless steels - **Exceptional oxidation resistance** up to 1200°C - **Excellent resistance to thermal fatigue** - **Good structural stability** under thermal cycling - **Long service life** in aggressive environments - **Reliable performance** in pressure applications --- ### **11. Corrosion Resistance** - **Oxidation:** Excellent to 1200°C - **Carburization:** Good resistance - **Nitridation:** Good resistance - **Chloride Attack:** Good resistance - **Sulfidation:** Moderate resistance --- **Note:** Haynes 230 Pipe offers exceptional performance for high-temperature piping systems where conventional materials cannot withstand the extreme operating conditions. The combination of high strength, excellent oxidation resistance, and good fabricability makes it suitable for the most demanding applications. Consult with our engineering team for specific pressure-temperature ratings and application recommendations.

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 2251 gallon liquid totes Special package is available on request.