Alloy G-3,INCO G-3 Pipe,,E FORU

British Specs:，American Specs:，German Specs:

**Product Data Sheet: Alloy G-3 / INCO G-3 Pipe** **Nickel-Chromium-Iron-Molybdenum Alloy Pipe** --- ### **1. Product Overview** **Alloy G-3 Pipe** (commonly known as **INCO G-3 Pipe**) is a nickel-chromium-iron-molybdenum alloy piping product specifically engineered for handling highly corrosive fluids and gases in severe industrial environments. Available in both seamless and welded configurations, this pipe offers exceptional resistance to sulfuric acid, phosphoric acid, and other aggressive media, making it ideal for chemical processing, oil and gas, and pollution control applications where reliable performance in corrosive service is critical. --- ### **2. Chemical Composition (Typical % by Weight)** | Element | Content (%) | Function | |---------|-------------|----------| | Nickel (Ni) | Balance | Base element providing corrosion resistance and metallurgical stability | | Chromium (Cr) | 21.0-23.5 | Confers resistance to oxidizing media and pitting corrosion | | Iron (Fe) | 18.0-21.0 | Provides solid solution strengthening | | Molybdenum (Mo) | 6.0-8.0 | Enhances resistance to reducing acids and localized corrosion | | Copper (Cu) | 1.5-2.5 | Improves resistance to sulfuric acid environments | | Tungsten (W) | ≤1.5 | Augments localized corrosion resistance | | Cobalt (Co) | ≤5.0 | Controls carbon activity and enhances thermal stability | | Carbon (C) | ≤0.015 | Minimized to prevent sensitization during welding | | Manganese (Mn) | ≤1.0 | Serves as deoxidizer and controls sulfur | | Silicon (Si) | ≤1.0 | Enhances oxidation resistance | --- ### **3. Physical & Mechanical Properties** | Property | Value (Typical) | |----------|-----------------| | Density | 8.3 g/cm³ | | Melting Point | 1370°C (2500°F) | | Thermal Conductivity | 10.1 W/m·K at 20°C | | Coefficient of Thermal Expansion | 13.7 μm/m·K (20-100°C) | | Modulus of Elasticity | 205 GPa at 20°C | | Tensile Strength | 690-840 MPa | | Yield Strength (0.2% Offset) | 310-410 MPa | | Elongation | 40-50% | | Hardness (Rockwell B) | 85-95 HRB | | Maximum Service Temperature | 400°C (750°F) | --- ### **4. Product Applications** #### **4.1 Chemical Processing Industry** - **Sulfuric Acid Service**: Piping systems for concentrations up to 85% - **Phosphoric Acid Production**: Evaporator lines, process piping, and transfer lines - **Chemical Reactor Systems**: Feed and discharge piping for aggressive chemical processes - **Acid Recovery Units**: Piping for concentration and purification systems #### **4.2 Oil & Gas Applications** - **Sour Service Piping**: Handling production fluids containing H₂S and CO₂ - **Refinery Process Piping**: Corrosive hydrocarbon service and acid handling - **Production Flowlines**: Subsea and topside corrosive service applications - **Gas Treatment Plants**: Piping in amine units and sour gas processing #### **4.3 Pollution Control Systems** - **Flue Gas Desulfurization (FGD)**: Ducting, slurry piping, and mist eliminator systems - **Wastewater Treatment**: Corrosive effluent and chemical feed lines - **Scrubber Systems**: Recirculation and discharge piping in acid gas removal #### **4.4 Industrial Applications** - **Pulp and Paper Industry**: Digester lines and bleach plant piping - **Pharmaceutical Industry**: Process piping for corrosive chemical handling - **Metal Pickling Lines**: Acid circulation and process piping systems --- ### **5. Key Features & Benefits** - **Exceptional Corrosion Resistance**: Superior performance in both oxidizing and reducing environments - **Pitting & Crevice Corrosion Resistance**: High PREN value (>30) ensures excellent localized corrosion resistance - **Stress Corrosion Cracking Resistance**: Outstanding performance in chloride-containing environments - **Excellent Weldability**: Can be welded using common techniques with minimal susceptibility to sensitization - **Optimized Wall Thickness**: Consistent wall distribution for maximum service life - **Smooth Internal Surface**: Minimizes friction loss and particle accumulation - **Cost-Effective Solution**: Provides long service life with minimal maintenance requirements - **Full Traceability**: Complete material certification and quality documentation --- ### **6. International Standards & Specifications** | Standard Type | Specification Number | Description | |---------------|----------------------|-------------| | ASTM | B622 | Standard Specification for Seamless Nickel and Nickel Alloy Pipe | | ASTM | B619 | Standard for Welded Nickel and Nickel Alloy Pipe | | ASTM | B775 | General Requirements for Nickel Alloy Pipe | | UNS | N06985 | Unified Numbering System Designation | | ASME | SB-622 | Code Case for Pressure Vessel Applications | | DIN | 2.4619 | Material Number and Specification | | EN | 2.4619 | European Standard Designation | --- ### **7. Product Specifications** #### **7.1 Pipe Types & Sizes** - **Seamless Pipe**: OD 6mm to 250mm, Wall thickness 1.0mm to 25mm - **Welded Pipe**: OD 15mm to 600mm, Wall thickness 1.5mm to 12mm - **Schedule**: 5S, 10S, 40S, 80S, and custom schedules available - **Length**: Standard 3-8 meters; custom lengths and cut-to-size available #### **7.2 Technical Specifications** - **OD Tolerance**: ±1% or ±0.1mm, whichever is greater - **Wall Thickness Tolerance**: ±10% for seamless, ±7.5% for welded - **Straightness**: ≤1.5mm per meter - **Surface Finish**: Pickled, bright annealed, or beveled ends for welding --- ### **8. Fabrication & Installation Guidelines** #### **8.1 Cutting & Preparation** - **Cutting Methods**: Band saw, abrasive wheel, or plasma cutting recommended - **End Preparation**: Machine bevels to specified welding procedure requirements - **Cleaning**: Remove all contaminants from internal and external surfaces before welding #### **8.2 Welding Procedures** - **Welding Methods**: GTAW (TIG) preferred for root passes, GTAW/SMAW for fill passes - **Filler Metals**: AWS A5.14 ERNiCrMo-10 or equivalent - **Shielding Gases**: 100% argon for GTAW, argon-based mixtures for GMAW - **Purge Gas**: Maintain proper internal purge during welding (oxygen < 50 ppm) #### **8.3 Installation & Support** - **Support Spacing**: Follow ASME B31.3 requirements for corrosive service - **Expansion Management**: Provide adequate expansion loops and flexibility - **Corrosion Protection**: Isolate from carbon steel supports using non-metallic materials --- ### **9. Quality Assurance & Certification** - **Material Certification**: EN 10204 3.1/3.2 with full traceability - **Testing Protocols**: Hydrostatic testing, eddy current, ultrasonic, or radiographic examination - **Chemical Analysis**: Verified by spectrometer and wet chemical methods - **Mechanical Testing**: Tensile, hardness, and flattening tests as required - **Certifications**: ISO 9001, PED 2014/68/EU, NORSOK compliance - **Documentation**: Certified Mill Test Reports with complete traceability --- **Disclaimer**: The technical information provided represents typical values and is for reference purposes. Actual properties may vary based on manufacturing process, pipe size, and heat treatment condition. Users must verify suitability for specific applications through appropriate testing and consult with technical experts for pressure-containing applications. Compliance with all applicable safety standards, codes, and regulations is mandatory.

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 2849 gallon liquid totes Special package is available on request.