Alloy B-2,Hastelloy B-2 Forgings,,E FORU

British Specs:，American Specs:，German Specs:

**Product Data Sheet: Alloy B-2 / Hastelloy® B-2 Forgings** **Nickel-Molybdenum Alloy Forgings for Severe Corrosive Service** --- ### **1. Product Overview** **Hastelloy® B-2 Forgings** represent high-integrity nickel-molybdenum alloy components manufactured through controlled hot-working processes to achieve superior mechanical properties and enhanced structural reliability. These forgings combine the exceptional corrosion resistance of Hastelloy B-2 with optimized grain flow and improved density, making them ideal for critical applications in severe corrosive environments where component integrity and reliability are paramount. --- ### **2. Chemical Composition (Typical % by Weight)** | Element | Content (%) | Function | |---------|-------------|----------| | Nickel (Ni) | Balance | Base element providing corrosion resistance and metallurgical stability | | Molybdenum (Mo) | 26.0-30.0 | Primary element for resistance to reducing acids | | Iron (Fe) | 2.0 max | Controlled to minimize detrimental phase formation | | Chromium (Cr) | 1.0 max | Limited to maintain performance in reducing environments | | Manganese (Mn) | 1.0 max | Deoxidizer and process control | | Silicon (Si) | 0.10 max | Controlled to prevent silicide formation | | Carbon (C) | 0.02 max | Minimized to prevent carbide precipitation | | Cobalt (Co) | 1.0 max | Controlled impurity | | Phosphorus (P) | 0.04 max | Controlled to prevent embrittlement | | Sulfur (S) | 0.03 max | Minimized to prevent hot cracking | --- ### **3. Physical & Mechanical Properties** | Property | Value (Typical) | |----------|-----------------| | Density | 9.22 g/cm³ | | Melting Point | 1330-1380°C (2426-2516°F) | | Thermal Conductivity | 10.8 W/m·K at 20°C | | Coefficient of Thermal Expansion | 10.3 μm/m·K (20-100°C) | | Modulus of Elasticity | 217 GPa at 20°C | | Tensile Strength | 1000-1250 MPa | | Yield Strength (0.2% Offset) | 450-750 MPa | | Elongation | 35-50% | | Reduction of Area | 45-65% | | Hardness (Rockwell B) | 100-110 HRB | | Impact Strength (Charpy V) | 90-140 J at 20°C | --- ### **4. Product Applications** #### **4.1 Valve and Pump Components** - **Valve Bodies**: High-pressure valve bodies for corrosive service - **Pump Casings**: Centrifugal and reciprocating pump housings - **Impellers**: Corrosion-resistant pump impellers - **Valve Trim**: Gates, discs, and stems for severe service valves #### **4.2 Chemical Processing Equipment** - **Reactor Parts**: Agitators, blades, and internal components - **Mixer Components**: Shafts and blades for corrosive mixing applications - **Column Internals**: Trays, supports, and distribution systems - **Heat Exchanger Parts**: Tube sheets and header components #### **4.3 Specialized Industrial Applications** - **Marine Components**: Propeller shafts and marine hardware - **Aerospace Parts**: Engine components and structural elements - **Power Generation**: Turbine blades and power plant components - **Nuclear Industry**: Non-critical nuclear components --- ### **5. Key Features & Benefits** - **Enhanced Mechanical Properties**: Superior strength and toughness compared to cast products - **Optimized Grain Structure**: Directional grain flow provides improved fatigue resistance - **Exceptional Corrosion Resistance**: Maintains Hastelloy B-2's superior corrosion performance in reducing environments - **Improved Density**: Freedom from porosity and internal defects - **Superior Fatigue Strength**: Enhanced resistance to cyclic loading conditions - **Better Impact Toughness**: Improved resistance to impact and shock loading - **Thermal Stability**: Maintains properties at elevated temperatures up to 400°C - **Cost-Effective Reliability**: Extended service life in critical applications --- ### **6. International Standards & Specifications** | Standard Type | Specification Number | Description | |---------------|----------------------|-------------| | ASTM | B564 | Standard Specification for Nickel Alloy Forgings | | UNS | N10665 | Unified Numbering System Designation | | ASME | SB-564 | Code Case for Pressure Component Applications | | DIN | 2.4617 | Material Number and Specification | | EN | 2.4617 | European Standard Designation | | NACE | MR0175/ISO 15156 | Suitable for Sour Service Applications | --- ### **7. Product Specifications** #### **7.1 Forging Types & Capabilities** - **Open-Die Forgings**: Large components up to 5000 kg - **Closed-Die Forgings**: Precision shapes with minimal machining allowance - **Ring Rolled Forgings**: Circular components with optimized grain orientation - **Custom Shapes**: Complex geometries to near-net shape #### **7.2 Size Range & Tolerances** - **Weight Range**: 1 kg to 5000 kg - **Dimensional Tolerances**: Per ASTM B564 and customer specifications - **Surface Finish**: As-forged, rough machined, or finished machined - **Testing Requirements**: Ultrasonic, magnetic particle, or dye penetrant as specified --- ### **8. Fabrication & Processing Guidelines** #### **8.1 Forging Process** - **Forging Temperature**: 1170-1230°C (2140-2250°F) for hot working operations - **Reduction Ratios**: Minimum 3:1 for optimal grain refinement - **Heat Treatment**: Solution anneal at 1065-1120°C (1950-2050°F) followed by rapid cooling - **Quality Control**: Comprehensive process monitoring throughout manufacturing #### **8.2 Machining & Finishing** - **Machining Parameters**: Use positive rake carbide tools with adequate cooling - **Cutting Speeds**: 15-25 m/min for rough machining, 25-35 m/min for finishing - **Surface Treatments**: Passivation, polishing, or special coatings as required - **Final Inspection**: Complete dimensional and NDT verification --- ### **9. Quality Assurance & Certification** - **Material Certification**: EN 10204 3.1/3.2 with full traceability - **Non-Destructive Testing**: UT, RT, PT, MT as required by specification - **Mechanical Testing**: Tensile, impact, and hardness testing - **Chemical Analysis**: Verified by spectrometer and wet chemical methods - **Certifications**: ISO 9001, ASME NPT, PED 2014/68/EU compliance - **Documentation**: Complete certification package including forging records --- **Disclaimer**: The technical information provided represents typical values and is for reference purposes. Actual properties may vary based on forging size, shape, and heat treatment condition. Users must verify suitability for specific applications through appropriate testing and consult with technical experts for critical applications. Hastelloy® is a registered trademark of Haynes International. 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 2868 gallon liquid totes Special package is available on request.