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

British Specs:，American Specs:，German Specs:

**Product Data Sheet: Alloy G-3 / INCO G-3 Rod** **Nickel-Chromium-Iron-Molybdenum Alloy Rod** --- ### **1. Product Overview** **Alloy G-3 Rod** (commonly referred to as **INCO G-3 Rod**) is a nickel-chromium-iron-molybdenum alloy supplied in rod form, offering exceptional corrosion resistance combined with excellent mechanical properties. This wrought product is specifically engineered for applications requiring machined components, fasteners, and structural elements that must withstand severe corrosive environments, including sulfuric and phosphoric acid services. The rod form provides optimal material for subsequent machining, fabrication, and manufacturing of critical components in aggressive 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 | | Manganese (Mn) | ≤1.0 | Serves as deoxidizer and controls sulfur | | Silicon (Si) | ≤1.0 | Enhances oxidation resistance | | Carbon (C) | ≤0.015 | Minimized to prevent sensitization during welding | | Phosphorus (P) | ≤0.04 | Controlled to ensure optimal weldability | | Sulfur (S) | ≤0.03 | Minimized to prevent hot cracking | --- ### **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) | | Electrical Resistivity | 1.12 μΩ·m at 20°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% | | Reduction of Area | 50-60% | | Hardness (Rockwell B) | 85-95 HRB | --- ### **4. Product Applications** #### **4.1 Machined Components** - **Valve Parts**: Stems, trim, and seating components for corrosive service - **Pump Components**: Shafts, impellers, and wear rings in chemical pumps - **Fasteners**: Bolts, studs, nuts, and specialized fasteners for corrosive environments - **Bearing Components**: Bushings and bearing surfaces in aggressive media #### **4.2 Chemical Processing Equipment** - **Agitator Shafts**: Mixing and agitation components in reaction vessels - **Column Internals**: Trays, packing supports, and distribution systems - **Heat Exchanger Parts**: Tube sheets, support rods, and structural elements - **Reactor Components**: Various internal parts for chemical reactors #### **4.3 Oil & Gas Applications** - **Downhole Tools**: Components for sour service applications - **Valve Trims**: Critical wear components in control and isolation valves - **Wellhead Components**: Parts exposed to corrosive production fluids #### **4.4 Specialized Industrial Applications** - **Pollution Control Equipment**: Structural components in FGD systems - **Pharmaceutical Equipment**: Machined parts for processing equipment - **Pulp and Paper Industry**: Digester and bleach plant components --- ### **5. Key Features & Benefits** - **Superior Corrosion Resistance**: Excellent performance in both oxidizing and reducing environments - **Optimized Machinability**: Specifically processed for efficient machining operations - **High Strength**: Combines corrosion resistance with excellent mechanical properties - **Pitting and Crevice Corrosion Resistance**: High PREN value (>30) ensures superior localized corrosion resistance - **Stress Corrosion Cracking Resistance**: Excellent performance in chloride-containing environments - **Good Weldability**: Can be welded using common techniques with matching filler metals - **Thermal Stability**: Maintains properties at elevated temperatures up to 400°C - **Consistent Quality**: Uniform microstructure and properties throughout rod cross-section --- ### **6. International Standards & Specifications** | Standard Type | Specification Number | Description | |---------------|----------------------|-------------| | ASTM | B581 | Standard Specification for Rod in Nickel-Chromium-Molybdenum Family | | UNS | N06985 | Unified Numbering System Designation | | ASME | SB-581 | Code Case for Pressure Component Applications | | DIN | 2.4619 | Material Number and Specification | | EN | 2.4619 | European Standard Designation | | ISO | 9724 | Nickel Alloy Rods for General Corrosion-Resistant Applications | --- ### **7. Product Specifications** #### **7.1 Rod Dimensions & Tolerances** - **Diameter Range**: 3.0 mm to 300 mm (0.125" to 12") - **Length**: Standard 3-6 meters; custom lengths available - **Diameter Tolerance**: ±0.1 mm to ±0.5% depending on diameter - **Straightness**: ≤1 mm per meter for precision applications - **Surface Finish**: Turned, ground, or polished finishes available #### **7.2 Available Conditions** - **Solution Annealed**: Optimal corrosion resistance and machinability - **Hot Finished**: For larger diameters and specific applications - **Cold Finished**: Improved surface finish and dimensional accuracy - **Special Tempers**: Various strength levels available upon request --- ### **8. Fabrication & Processing Guidelines** #### **8.1 Machining Recommendations** - **Cutting Tools**: Use carbide tools with positive rake angles - **Cutting Speeds**: 20-40 m/min for rough machining, 40-60 m/min for finishing - **Feed Rates**: Moderate to heavy feeds with adequate cooling - **Coolants**: Use sulfur-free cutting fluids for optimal results - **Tool Geometry**: Sharp cutting edges with adequate clearance angles #### **8.2 Welding & Joining** - **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 #### **8.3 Heat Treatment** - **Solution Annealing**: 1150-1200°C followed by rapid cooling - **Stress Relieving**: 850-900°C when required for specific applications --- ### **9. Quality Assurance & Certification** - **Material Certification**: EN 10204 3.1/3.2 with full traceability - **Testing Protocols**: Mechanical testing, chemical analysis, corrosion testing - **Non-Destructive Testing**: UT, MT, PT available as required - **Certifications**: ISO 9001, ASME, NORSOK, PED compliance - **Traceability**: Complete material history from melt to finished rod --- **Disclaimer**: The technical information provided represents typical values and is for reference purposes. Actual properties may vary based on manufacturing process, rod diameter, and heat treatment condition. Users must verify suitability for specific applications through appropriate testing and consult with technical experts for critical 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 2847 gallon liquid totes Special package is available on request.