Alloy G-3,INCO G-3 Bar(Round bar, Flat bar),,E FORU

British Specs:，American Specs:，German Specs:

**Product Data Sheet: Alloy G-3 / INCO G-3 Bar** **(Round Bar & Flat Bar)** --- ### **1. Product Overview** **Alloy G-3 Bar** (commonly known as **INCO G-3 Bar**) is a nickel-chromium-iron-molybdenum alloy available in both round and flat bar configurations, offering exceptional corrosion resistance combined with excellent mechanical properties. These wrought products are specifically engineered for applications requiring machined components, structural elements, and fabricated parts that must withstand severe corrosive environments, including sulfuric acid, phosphoric acid, and other aggressive chemical services. --- ### **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 | | Phosphorus (P) | ≤0.04 | Controlled to ensure optimal weldability | | Sulfur (S) | ≤0.03 | Minimized to prevent hot cracking | --- ### **3. Physical & Mechanical Properties** | Property | Round Bar Value | Flat Bar Value | |----------|-----------------|----------------| | Density | 8.3 g/cm³ | 8.3 g/cm³ | | Melting Point | 1370°C (2500°F) | 1370°C (2500°F) | | Thermal Conductivity | 10.1 W/m·K at 20°C | 10.1 W/m·K at 20°C | | Coefficient of Thermal Expansion | 13.7 μm/m·K (20-100°C) | 13.7 μm/m·K (20-100°C) | | Electrical Resistivity | 1.12 μΩ·m at 20°C | 1.12 μΩ·m at 20°C | | Modulus of Elasticity | 205 GPa at 20°C | 205 GPa at 20°C | | Tensile Strength | 690-840 MPa | 680-830 MPa | | Yield Strength (0.2% Offset) | 310-410 MPa | 300-400 MPa | | Elongation | 40-50% | 35-45% | | Hardness (Rockwell B) | 85-95 HRB | 80-90 HRB | --- ### **4. Product Applications** #### **4.1 Round Bar Applications** - **Shafting**: Pump shafts, agitator shafts, and drive components - **Valve Components**: Stems, plugs, and trim parts for corrosive service - **Fastener Stock**: Raw material for bolts, studs, and specialized fasteners - **Machined Components**: Bushings, bearings, and precision machine parts - **Structural Members**: Support rods and tension members in corrosive environments #### **4.2 Flat Bar Applications** - **Structural Framing**: Support frames and structural elements in process equipment - **Wear Strips and Guides**: Guide rails and wear surfaces in corrosive service - **Bracket and Mounting Plates**: Support brackets and mounting components - **Heat Exchanger Components**: Support bars and structural elements - **Fabricated Assemblies**: Base material for welded structures and assemblies #### **4.3 Industrial Applications** - **Chemical Processing**: Components for reactors, columns, and vessels - **Oil & Gas**: Downhole tools, valve components, and processing equipment - **Pollution Control**: Structural members in FGD systems and scrubbers - **Pulp and Paper**: Digester components and bleach plant equipment --- ### **5. Key Features & Benefits** - **Exceptional Corrosion Resistance**: Superior performance in both oxidizing and reducing environments - **High Strength-to-Weight Ratio**: Excellent mechanical properties for structural applications - **Pitting and Crevice Corrosion Resistance**: High PREN value (>30) ensures superior localized corrosion resistance - **Excellent Machinability**: Optimized for efficient machining operations in both round and flat forms - **Good Weldability**: Can be welded using common techniques with matching filler metals - **Thermal Stability**: Maintains properties at elevated temperatures up to 400°C - **Versatile Fabrication**: Suitable for machining, welding, forming, and other fabrication processes - **Cost-Effective Solution**: Provides long service life in corrosive environments, reducing maintenance costs --- ### **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 Round Bar Specifications** - **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 Flat Bar Specifications** - **Thickness Range**: 3.0 mm to 100 mm (0.125" to 4") - **Width Range**: 10 mm to 300 mm (0.4" to 12") - **Length**: Standard 3-6 meters; custom lengths available - **Thickness Tolerance**: ±0.1 mm to ±0.5% depending on thickness - **Width Tolerance**: ±0.5 mm to ±1.0% depending on width #### **7.3 Available Conditions** - **Solution Annealed**: Optimal corrosion resistance and machinability - **Hot Finished**: For larger sizes 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 product --- **Disclaimer**: The technical information provided represents typical values and is for reference purposes. Actual properties may vary based on manufacturing process, bar size, 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 2848 gallon liquid totes Special package is available on request.