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

British Specs:，American Specs:，German Specs:

**Product Data Sheet: Alloy G-3 / INCO G-3 Fittings** **Nickel-Chromium-Iron-Molybdenum Alloy Fittings** --- ### **1. Product Overview** **Alloy G-3 Fittings** (commonly known as **INCO G-3 Fittings**) are precision-engineered nickel-chromium-iron-molybdenum alloy components designed for corrosive service piping systems. These fittings maintain all the superior corrosion-resistant properties of Alloy G-3 while providing reliable, leak-proof connections in aggressive chemical environments, including sulfuric acid, phosphoric acid, and other challenging industrial applications. --- ### **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** - **Acid Service Piping**: Fittings for sulfuric and phosphoric acid handling systems - **Chemical Reactor Systems**: Connections for aggressive chemical processes - **Process Piping**: Corrosive fluid transfer and distribution systems - **Acid Recovery Units**: Fittings for concentration and purification systems #### **4.2 Oil & Gas Applications** - **Sour Service Piping**: Fittings for production fluids containing H₂S and CO₂ - **Refinery Process Piping**: Corrosive hydrocarbon service connections - **Production Flowlines**: Subsea and topside corrosive service applications - **Gas Treatment Plants**: Fittings in amine units and sour gas processing #### **4.3 Pollution Control Systems** - **Flue Gas Desulfurization (FGD)**: Ducting fittings and slurry system components - **Wastewater Treatment**: Corrosive effluent and chemical feed line connections - **Scrubber Systems**: Recirculation and discharge piping fittings #### **4.4 Industrial Applications** - **Pulp and Paper Industry**: Digester lines and bleach plant piping systems - **Pharmaceutical Industry**: Process piping for corrosive chemical handling - **Metal Pickling Lines**: Acid circulation and process piping connections --- ### **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 - **Precision Manufacturing**: Consistent dimensions and smooth internal surfaces for optimal flow - **Easy Installation**: Designed for straightforward assembly and alignment - **Leak-Free Performance**: Precision machining ensures reliable sealing - **Excellent Weldability**: Can be welded using common techniques with matching filler metals - **Long Service Life**: Reduced maintenance and replacement frequency in corrosive service --- ### **6. International Standards & Specifications** | Standard Type | Specification Number | Description | |---------------|----------------------|-------------| | ASTM | B366 | Standard Specification for Factory-Made Wrought Nickel Alloy Fittings | | UNS | N06985 | Unified Numbering System Designation | | ASME | SB-366 | Code Case for Pressure Component Applications | | DIN | 2.4619 | Material Number and Specification | | EN | 2.4619 | European Standard Designation | | MSS | SP-43 | Wrought Stainless Steel Fittings | | ISO | 9001 | Quality Management System Certification | --- ### **7. Product Specifications** #### **7.1 Fitting Types & Configurations** - **Elbows**: 45°, 90°, and 180° angles; short and long radius patterns - **Tees**: Equal and reducing tees; straight and barred patterns - **Reducers**: Concentric and eccentric reducers - **Caps**: Pipe caps and end closures - **Couplings**: Full couplings and half-couplings - **Special Fittings**: Crosses, laterals, and custom configurations #### **7.2 Size Range & Pressure Ratings** - **Size Range**: 1/8" to 12" NPS (DN6 to DN300) - **Wall Thickness**: Schedule 5S to Schedule 80 - **Pressure Ratings**: Class 150, 300, and 600 available - **End Connections**: Butt-weld, socket weld, and threaded ends --- ### **8. Fabrication & Installation Guidelines** #### **8.1 Welding & Installation** - **Welding Preparation**: Proper fit-up and alignment essential for butt-weld fittings - **Welding Methods**: GTAW (TIG) preferred for critical applications - **Filler Metals**: AWS A5.14 ERNiCrMo-10 or equivalent - **Preheating**: Generally not required for most applications - **Post-Weld Heat Treatment**: Usually unnecessary; solution anneal if required #### **8.2 Quality Control** - **Visual Inspection**: Check for surface defects and proper bevel preparation - **Dimensional Verification**: Verify all critical dimensions before installation - **Material Verification**: Positive Material Identification (PMI) testing - **Documentation Review**: Verify all certifications and test reports --- ### **9. Quality Assurance & Certification** - **Material Certification**: EN 10204 3.1/3.2 with full traceability - **Testing Protocols**: Hydrostatic testing, PMI, and visual inspection - **Non-Destructive Testing**: PT, MT, RT as required by specification - **Certifications**: ISO 9001, PED 2014/68/EU, NORSOK compliance - **Documentation**: Certified Mill Test Reports with complete material properties - **Traceability**: Complete material history from melt to finished fitting --- **Disclaimer**: The technical information provided represents typical values and is for reference purposes. Actual properties may vary based on manufacturing process, fitting size, and wall thickness. 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 2854 gallon liquid totes Special package is available on request.