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Corrosion Resistant Hastelloy B-2 Round Bar Hot Rolled Nickel-Molybdenum Alloy Bar Diameter 10-350mm for Industrial Applications
Product Details
| Shape | Round | Technique | Hot Rolled |
|---|---|---|---|
| Surface Treatment | Pickling | Length | Within 6m |
| Tolerance | H8-H13 | Diameter | 10 - 350mm |
| Nickel Content | 65.0 - 70.0% | Molybdenum Content | 26.0 - 30.0% |
| Iron Content | ≤ 2.0% | Chromium Content | ≤ 1.0% |
| Carbon Content | ≤ 0.02% | Tensile Strength | ≥ 690 MPa |
| Yield Strength | ≥ 310 MPa | Elongation | ≥ 40% |
| Hardness | ≤ 230 HB | ||
| Highlight | Corrosion Resistant Hastelloy B-2 Round Bar,Hot Rolled Nickel-Molybdenum Alloy Bar,Diameter 10-350mm UNS N10665 Round Bar |
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Product Description
Hastelloy B-2 (UNS N10665) Round Bar
Premium nickel-molybdenum alloy round bar offering exceptional resistance to severe corrosive environments, particularly in reducing media. Ideal for critical industrial applications requiring durability, corrosion resistance, and structural stability.
Product Specifications
| Product Name | Hastelloy B-2 round bar |
|---|---|
| Diameter | 10 - 350mm |
| Length | Custom cutting any length as requested |
| Surface | Bright, Black, Pickling, Polishing |
| Brand | DELTA |
| Service | Cutting, Polishing |
| MOQ | 2 Kgs |
| Other Types | Bar, Strip, Coil, Pipe, Sheet, Plate, Wire, etc. |
| Packing | Wooden box |
| Loading Port | Shanghai Port |
| Price Term | EXW, FOB, CIF, CFR |
| Delivery Time | Within 12 days |
Material Description
Hastelloy B-2 (UNS N10665) round bar is a premium nickel-molybdenum alloy renowned for exceptional resistance to severe corrosive environments, especially in reducing media. Its optimized chemical composition and mechanical properties ensure reliable performance in critical industrial applications where durability, corrosion resistance, and structural stability are essential.
Chemical Composition (Typical, % by Weight)
The carefully balanced chemical composition provides outstanding corrosion resistance and mechanical strength:
- Nickel (Ni): 65.0 - 70.0% (base element providing excellent ductility and general corrosion resistance)
- Molybdenum (Mo): 26.0 - 30.0% (primary alloying element enhancing resistance to pitting, crevice corrosion, and reducing acids)
- Iron (Fe): ≤ 2.0% (improves thermal stability and processability)
- Chromium (Cr): ≤ 1.0% (minimized to avoid harmful phase precipitation)
- Carbon (C): ≤ 0.02% (low carbon prevents carbide precipitation and intergranular corrosion)
- Manganese (Mn): ≤ 1.0% (aids in casting and forming processes)
- Silicon (Si): ≤ 0.1% (reduces oxide formation risk and maintains alloy purity)
- Phosphorus (P): ≤ 0.04% (controlled to avoid brittleness)
- Sulfur (S): ≤ 0.03% (minimized to prevent corrosion and improve mechanical integrity)
Mechanical Properties (Typical Values, Annealed Condition)
Hastelloy B-2 exhibits excellent mechanical properties including high tensile strength, good ductility, and stress resistance:
- Tensile Strength (σb): ≥ 690 MPa (100 ksi)
- Yield Strength (σ0.2): ≥ 310 MPa (45 ksi)
- Elongation (δ): ≥ 40% (in 50 mm gauge length, indicating excellent ductility)
- Hardness (Brinell Hardness, HB): ≤ 230 (annealed, ensuring ease of machining and welding)
- Impact Toughness (Charpy V-Notch): ≥ 100 J (demonstrating resistance to brittle fracture)
The alloy retains most mechanical strength at elevated temperatures up to 540°C / 1000°F.
Standards Compliance
Manufactured in strict accordance with international and industry standards:
- ASTM B335: Standard Specification for Nickel-Alloy Rod and Bar
- ASME SB-335: Boiler and Pressure Vessel Code
- UNS N10665: Unified Numbering System designation
- DIN 17750: German standard for nickel and nickel-alloy bars
- ISO 9723: International Organization for Standardization standard
Similar Grades
Alternative alloys with comparable properties:
- Hastelloy B-3 (UNS N10675): Improved version with better thermal stability and localized corrosion resistance
- Nickel 201 (UNS N02201): Pure nickel grade with good corrosion resistance in reducing media
- Alloy 625 (UNS N06625): Nickel-chromium-molybdenum alloy with excellent all-around corrosion resistance
- DIN 2.4617: German designation equivalent to Hastelloy B-2
Industrial Applications
Widely used in critical industrial sectors requiring exceptional resistance to reducing acids and high-temperature stability:
- Chemical Processing: Reactors, heat exchangers, and piping systems for processing hydrochloric acid, acetic acid, and corrosive chemicals
- Oil and Gas: Downhole tubulars, wellhead components, and offshore platforms for corrosive fluids and high-pressure conditions
- Pharmaceutical and Food Processing: Equipment for drug manufacturing, food additives, and beverages
- Wastewater Treatment: Pumps, valves, and clarifiers for industrial wastewater with high chloride concentrations
- Aerospace and Defense: Rocket engine components and aircraft fuel systems
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