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

British Specs:，American Specs:，German Specs:

**Product Data Sheet: Alloy B-2 / Hastelloy® B-2 Fittings** **Nickel-Molybdenum Alloy Fittings for Severe Corrosive Service** --- ### **1. Product Overview** **Hastelloy® B-2 Fittings** are precision-engineered nickel-molybdenum alloy components designed for corrosive service piping systems handling aggressive reducing environments. These fittings maintain all the superior corrosion-resistant properties of Hastelloy B-2 while providing reliable, leak-proof connections in hydrochloric acid, sulfuric acid, and other challenging chemical processing applications. --- ### **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 | 965 MPa min | | Yield Strength (0.2% Offset) | 415 MPa min | | Elongation | 40% min | | Hardness (Rockwell B) | 100 HRB max | | Maximum Service Temperature | 400°C (750°F) | --- ### **4. Product Applications** #### **4.1 Chemical Processing Industry** - **Hydrochloric Acid Systems**: Fittings for all concentrations and temperatures - **Sulfuric Acid Service**: Piping components for concentrated acid handling - **Acetic Acid Production**: Process piping for organic acid manufacturing - **Phosphoric Acid Systems**: Fittings for acid concentration and purification #### **4.2 Pharmaceutical & Fine Chemicals** - **Reactor Transfer Systems**: Connections for corrosive chemical processes - **Process Piping**: Handling aggressive intermediates and products - **Utility Lines**: Acid and solvent distribution system components - **Waste Handling**: Corrosive effluent and by-product line fittings #### **4.3 Industrial Applications** - **Pickling Lines**: Acid circulation and process piping components - **Metal Treatment**: Chemical processing and surface treatment systems - **Acid Recovery**: Fittings for regeneration and recovery systems - **Pollution Control**: Scrubber system piping components --- ### **5. Key Features & Benefits** - **Exceptional Resistance to Reducing Acids**: Superior performance in hydrochloric acid at all concentrations and temperatures - **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 matching filler metals with minimal preheating - **Low Carbon Content**: Minimizes carbide precipitation during welding and service - **Long Service Life**: Reduced maintenance and replacement frequency in corrosive service - **Full Traceability**: Complete material certification and quality documentation --- ### **6. International Standards & Specifications** | Standard Type | Specification Number | Description | |---------------|----------------------|-------------| | ASTM | B366 | Standard Specification for Factory-Made Wrought Nickel Alloy Fittings | | UNS | N10665 | Unified Numbering System Designation | | ASME | SB-366 | Code Case for Pressure Component Applications | | DIN | 2.4617 | Material Number and Specification | | EN | 2.4617 | 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**: Use matching composition filler metals - **Preheating**: Generally not required - **Interpass Temperature**: Maintain below 100°C (212°F) - **Post-Weld Heat Treatment**: Usually not 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. 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 2867 gallon liquid totes Special package is available on request.