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

British Specs:，American Specs:，German Specs:

**Product Data Sheet: Alloy B-2 / Hastelloy® B-2 Rod** **Nickel-Molybdenum Alloy Rod for Severe Corrosive Environments** --- ### **1. Product Overview** **Hastelloy® B-2 Rod** (UNS N10665) is a nickel-molybdenum alloy supplied in rod form, specifically engineered for applications requiring exceptional resistance to reducing environments. This low-carbon, low-iron version of the nickel-molybdenum alloy family provides superior performance in hydrochloric acid, sulfuric acid, and other aggressive reducing media, making it ideal for manufacturing shafts, fasteners, valves, and other critical components in chemical processing equipment. --- ### **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) | | Electrical Resistivity | 1.35 μΩ·m at 20°C | | Modulus of Elasticity | 217 GPa at 20°C | | Tensile Strength | 965-1200 MPa | | Yield Strength (0.2% Offset) | 415-690 MPa | | Elongation | 40-60% | | Reduction of Area | 50-70% | | Hardness (Rockwell B) | 95-105 HRB | --- ### **4. Product Applications** #### **4.1 Chemical Processing Equipment** - **Agitator Shafts**: For reactors and mixing vessels handling corrosive media - **Valve Components**: Stems, plugs, and trim parts for corrosive service - **Pump Parts**: Shafts, sleeves, and bearing components - **Fasteners**: Bolts, studs, and nuts for corrosive environments #### **4.2 Specialized Components** - **Machined Parts**: Custom components for chemical processing equipment - **Bearing Surfaces**: Wear-resistant components in corrosive service - **Support Rods**: Structural elements in corrosive atmospheres - **Laboratory Equipment**: Components for analytical instruments #### **4.3 Oil & Gas Applications** - **Downhole Tools**: Components for sour service applications - **Valve Trim**: Critical wear components in control valves - **Instrumentation**: Parts for corrosive service instrumentation --- ### **5. Key Features & Benefits** - **Exceptional Resistance to Reducing Acids**: Superior performance in hydrochloric, sulfuric, and phosphoric acids - **Excellent Thermal Stability**: Maintains mechanical properties at elevated temperatures - **Good Machinability**: Can be precision machined to close tolerances - **Low Carbon Content**: Minimizes carbide precipitation during welding and thermal processing - **Optimized Mechanical Properties**: Combination of high strength and good ductility - **Consistent Quality**: Uniform properties throughout rod cross-section - **Proven Reliability**: Long service life in demanding chemical environments --- ### **6. International Standards & Specifications** | Standard Type | Specification Number | Description | |---------------|----------------------|--------------------------------| | ASTM | B335 | Standard for Nickel-Molybdenum Alloy Rod | | UNS | N10665 | Unified Numbering System Designation | | ASME | SB-335 | Code Case for Pressure Component Applications | | DIN | 2.4617 | Material Number and Specification | | EN | 2.4617 | European Standard Designation | | ISO | 9724 | Nickel Alloy Rods for General Purpose | --- ### **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**: 15-30 m/min for rough machining - **Feed Rates**: Moderate feeds with adequate cooling - **Coolants**: Use sulfur-free cutting fluids - **Tool Geometry**: Sharp cutting edges with adequate clearance angles #### **8.2 Welding & Joining** - **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) #### **8.3 Heat Treatment** - **Solution Annealing**: 1065-1120°C (1950-2050°F) followed by rapid cooling - **Stress Relieving**: Generally not recommended - **Annealing Atmosphere**: Use protective atmosphere to prevent oxidation --- ### **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, PED 2014/68/EU compliance - **Documentation**: Certified Mill Test Reports with complete material properties --- **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. 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 2860 gallon liquid totes Special package is available on request.