Alloy 75,Nimonic 75 Pipe,UNS N06075,E FORU

British Specs:BS HR5 Alloy 75 Bar BS HR203 Alloy 75 sheet BS HR403 Alloy 75 tube* BS HR504 Alloy 75 Bar (rivet)，American Specs:，German Specs:WS 2.4630 WS 2.4951,AFNOR NC 20T

### **Product Datasheet: Alloy 75 / Nimonic 75 Pipe (UNS N06075)** **Alloy 75** (commercially known as **Nimonic 75**) pipe is a nickel-chromium alloy manufactured in tubular form, designed for high-temperature applications requiring excellent oxidation resistance and reliable performance in elevated temperature service. This product form is specifically engineered for piping systems that must withstand temperatures up to 950°C while maintaining structural integrity and corrosion resistance. --- #### **1. Chemical Composition** The chemical composition of Nimonic 75 pipe is precisely controlled to ensure optimal high-temperature performance: | Element | Content (%) | |:---|:---| | **Nickel (Ni)** | Balance | | **Chromium (Cr)** | 18.0 - 21.0 | | **Iron (Fe)** | 3.0 - 5.0 | | **Titanium (Ti)** | 0.2 - 0.6 | | **Carbon (C)** | 0.08 - 0.15 | | **Manganese (Mn)** | 1.0 max | | **Silicon (Si)** | 1.0 max | | **Copper (Cu)** | 0.5 max | | **Sulfur (S)** | 0.015 max | *Note: The balanced composition provides excellent oxidation resistance through chromium content while maintaining good high-temperature strength and weldability in piping systems.* --- #### **2. Physical Properties** Nimonic 75 pipe exhibits consistent physical properties across all sizes: | Property | Value | |:---|:---| | **Density** | 8.31 g/cm³ (0.300 lb/in³) | | **Melting Range** | 1380 - 1425°C (2516 - 2597°F) | | **Coefficient of Thermal Expansion** | 14.5 × 10⁻⁶/°C (20-100°C) | | **Thermal Conductivity** | 12.0 W/m·K (at 100°C) | | **Specific Heat** | 460 J/kg·K (at 100°C) | | **Modulus of Elasticity** | 214 GPa (31 × 10⁶ psi) | | **Electrical Resistivity** | 1.12 μΩ·m | | **Magnetic Permeability** | <1.01 (essentially non-magnetic) | --- #### **3. Mechanical Properties** **Standard Mechanical Properties (Solution Annealed Condition):** | Property | Seamless Pipe | Welded Pipe | |:---|:---|:---| | **Tensile Strength** | 690 MPa (100 ksi) min | 660 MPa (96 ksi) min | | **Yield Strength (0.2% Offset)** | 310 MPa (45 ksi) min | 290 MPa (42 ksi) min | | **Elongation** | 45% min | 40% min | | **Hardness** | 85 HRB max | 85 HRB max | **Pressure-Temperature Ratings:** - **Maximum Working Pressure:** Varies with pipe size and schedule - **Temperature Range:** Up to 950°C (1742°F) - **Pressure Derating:** Maintains strength at elevated temperatures --- #### **4. Product Specifications** **Available Forms:** - **Seamless Pipe:** Sizes 1/8" to 24" NPS - **Welded Pipe:** Sizes 1/8" to 48" NPS - **Schedules:** 5S, 10S, 40S, 80S, 160 - **Lengths:** Random (16-24'), Double Random (34-40'), Cut to Length **Standard Specifications:** - **OD Tolerances:** ±1% or ±0.5mm, whichever is greater - **Wall Thickness Tolerances:** ±12.5% for seamless, ±10% for welded - **Straightness:** Maximum 1.5mm per meter - **Surface Finish:** Pickled, polished, or as-drawn --- #### **5. Product Applications** **Aerospace Industry:** - **Engine Exhaust Systems:** High-temperature ducting and piping - **Afterburner Fuel Lines:** Fuel supply and distribution systems - **Hydraulic Lines:** High-temperature hydraulic fluid transport - **Bleed Air Systems:** Hot air ducting and piping **Power Generation:** - **Gas Turbine Systems:** Fuel gas and combustion air piping - **Heat Recovery Systems:** High-temperature exhaust gas ducting - **Boiler Systems:** Superheater and reheater connections - **Nuclear Applications:** High-temperature utility piping **Industrial Processing:** - **Heat Treatment Furnaces:** Protective atmosphere gas lines - **Chemical Processing:** High-temperature reaction vessel piping - **Glass Manufacturing:** Furnace fuel and combustion air piping - **Ceramic Industry:** Kiln exhaust and fuel supply systems **Petrochemical Industry:** - **Furnace Piping:** High-temperature process piping - **Reformer Systems:** Process gas transfer lines - **Heater Tubes:** Direct fired heater applications --- #### **6. International Standards** **Material & Manufacturing Standards:** - **UNS N06075**: Unified Numbering System designation - **ASTM B619**: Standard for Welded Pipe - **ASTM B622**: Standard for Seamless Pipe and Tube - **ASME SB619/SB622**: ASME Boiler and Pressure Vessel Code - **AMS 5755**: Aerospace Material Specification **Dimensional Standards:** - **ASME B36.10/19**: Welded and Seamless Wrought Steel Pipe - **ISO 1127**: Stainless steel tubes - Dimensions, tolerances - **ANSI B36.19**: Stainless Steel Pipe **Testing & Inspection Standards:** - **ASTM A530**: General Requirements for Specialized Carbon and Alloy Steel Pipe - **ASTM E213**: Ultrasonic Testing of Metal Pipe and Tubing - **Hydrostatic Testing**: Per applicable code requirements --- #### **7. Heat Treatment** **Solution Annealing:** - **Temperature Range:** 1150-1180°C (2100-2150°F) - **Cooling Method:** Rapid air cool or water quench - **Purpose:** To dissolve precipitated phases and optimize high-temperature properties **Stress Relieving:** - **Temperature:** 850-900°C (1560-1650°F) - **Time:** 1-2 hours per inch of thickness - **Purpose:** To relieve stresses from fabrication processes --- #### **8. Oxidation & Corrosion Resistance** **Excellent Performance In:** - **High-Temperature Oxidation:** Up to 950°C continuous service - **Sulfur-Containing Atmospheres:** Good resistance to sulfidation - **Carburizing Environments:** Moderate resistance - **Thermal Cycling:** Good resistance to thermal fatigue **Oxidation Performance Data:** - **Continuous Service Temperature:** Up to 950°C (1742°F) - **Oxidation Rate:** <0.1 mm/year at 900°C (1652°F) - **Scale Adherence:** Excellent, with protective chromia scale formation --- #### **9. Fabrication & Installation** **Welding Procedures:** - **Recommended Processes:** GTAW (preferred), GMAW - **Filler Metal:** AWS A5.14 ERNiCr-3 - **Preheat:** Generally not required - **Interpass Temperature:** <150°C - **Post-Weld Heat Treatment:** Recommended for critical applications **Bending & Forming:** - **Cold Bending:** Minimum bend radius 3 × OD - **Hot Bending:** Recommended for heavy wall pipe - **Bending Methods:** Induction, rotary draw, compression bending **Installation Considerations:** - **Support Spacing:** Consider thermal expansion characteristics - **Expansion Management:** Proper expansion loop design - **Connection Methods:** Welding, flanging, threading - **Gasket Selection:** Compatible with high-temperature service --- #### **10. Quality Assurance** **Testing & Certification:** - **Chemical Analysis:** Certified mill test reports - **Mechanical Testing:** Tensile, hardness, flattening tests - **Non-Destructive Examination:** UT, RT, ET, PT as specified - **Hydrostatic Testing:** Standard or to customer requirements - **Dimensional Inspection:** To specified tolerances **Certification Requirements:** - **EN 10204 3.1/3.2**: Material inspection certificates - **PED 2014/68/EU**: Pressure Equipment Directive - **Third-Party Inspection**: Available as required --- #### **11. Key Advantages** * **Excellent High-Temperature Strength:** Maintains mechanical properties at elevated temperatures * **Superior Oxidation Resistance:** Outstanding performance up to 950°C * **Good Weldability:** Suitable for various welding processes * **Long Service Life:** Reduced maintenance and replacement costs * **Industry Compliance:** Meets major international standards * **Proven Reliability:** Extensive service history in demanding applications * **Versatile Applications:** Suitable for multiple high-temperature sectors Nimonic 75 pipe provides a reliable, high-performance solution for high-temperature piping applications, offering exceptional oxidation resistance and maintained mechanical properties under challenging operating conditions across aerospace, power generation, and industrial processing industries.

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 2043 gallon liquid totes Special package is available on request.