HASTELLOY alloy B-2 (UNS N10665) is a nickel-molybdenum alloy known for its excellent resistance to reducing acids such as hydrochloric acid, sulfuric acid, and phosphoric acid. It offers robust mechanical properties and reliability across a wide range of temperatures, making it suitable for various demanding applications in corrosive environments.
Skład chemiczny
Element
Skład (%)
Nikiel (Ni)
65.0 min
Molibden (Mo)
26.0 – 30.0
Żelazo (Fe)
2,0 maks
Chrom (Cr)
1,0 maks
Cobalt (Co)
1,0 maks
Mangan (Mn)
1,0 maks
Krzem (Si)
00,10 maks
Węgiel (C)
00,02 maks
Fosfor (P)
0.040 max
Siarka (S)
0.030 max
Właściwości mechaniczne
Nieruchomość
Wartość
Wytrzymałość na rozciąganie, ksi (MPa)
110 (760) min
Granica plastyczności (przesunięcie 0,2%), ksi (MPa)
51 (350) min
Wydłużenie (% na 2 cale)
40 min
Hardness, Rockwell B (HRB)
88 max
Wydajność w różnych temperaturach
HASTELLOY B-2 demonstrates reliable performance across various temperature ranges:
Room Temperature:Offers outstanding resistance to reducing acids, ensuring longevity in chemical processing equipment.
Elevated Temperatures (up to 1000°F / 538°C):Maintains high strength and corrosion resistance in challenging industrial environments.
Low Temperatures:Retains ductility and toughness even at cryogenic temperatures, suitable for applications requiring resilience in extreme conditions.
Zastosowania branżowe
HASTELLOY alloy B-2 finds widespread use in several key industries:
Sektor przemysłowy
Aplikacje
Przetwarzanie chemiczne
Reactor vessels, heat exchangers, and piping systems handling aggressive acids like sulfuric, hydrochloric, and phosphoric acids.
Petrochemical
Equipment for processing acids and chemicals in refineries and chemical plants.
Pharmaceutical
Pharmaceutical processing equipment requiring corrosion resistance to acids.
Pulpa i Papier
Digesters, bleach plants, and equipment for corrosive chemical environments in paper production.
Kształty, rozmiary i standardy produkcyjne
Formularz produktu
Dostępne kształty
Dostępne rozmiary
Standardy produkcyjne
Pościel
Talerze, prześcieradła
Thickness: 0.025″ – 4.000″ (0.64mm – 101.6mm)
ASTM B333
Słupy
Round bars, hexagonal bars
Diameter: 0.25″ – 4.0″ (6.35mm – 101.6mm)
ASTM B335
Rury/Rury
Seamless tubes, welded pipes
OD: 0.5″ – 8.0″ (12.7mm – 203.2mm)
ASTM B619, ASTM B622
Standards and Corresponding Grades
Kraj/region
Standard/Grade
USA
UNS N10665
Europe
2.4617
Niemcy
NiMo28
Francja
NiMo28
Welding, Processing, Polishing, Heat Treatment
Proces
Detale
Spawalniczy
Excellent weldability using TIG, MIG methods, suitable for joining components in corrosive environments without compromising integrity.
Processing
Machinable using conventional methods, offers flexibility in fabrication processes to meet specific design requirements.
Polerowanie
Capable of achieving smooth finishes for enhanced corrosion resistance, critical in applications requiring sanitary conditions.
Obróbka cieplna
Solution annealing at 1950°F (1065°C) followed by rapid quenching ensures optimal material properties and performance under stress.
Cold Processing, Advantages, and Disadvantages
Aspekt
Detale
Cold Processing
Retains ductility and formability at room temperature, facilitating shaping and forming processes in manufacturing.
Zalety
Exceptional resistance to reducing acids, high mechanical strength, and reliability in aggressive chemical environments.
Niedogodności
Higher initial cost compared to conventional stainless steels, limited availability in certain shapes and sizes may require custom fabrication solutions.
podobne produkty
Product Name
Porównanie
HASTELLOY Alloy C-276 (UNS N10276)
Higher molybdenum content, broader corrosion resistance in severe environments, suitable for a wider range of chemicals.
HASTELLOY Alloy B-3 (UNS N10675)
Enhanced thermal stability, superior resistance to hydrochloric acid and other strong acids, ideal for applications requiring extended service life in aggressive chemical environments.
Comparison of Similar Products
Właściwość/funkcja
HASTELLOY Alloy B-2 (UNS N10665)
HASTELLOY Alloy C-276 (UNS N10276)
HASTELLOY Alloy B-3 (UNS N10675)
Zawartość niklu (%)
65.0 min
57,0
65.0
Zawartość molibdenu (%)
26.0 – 30.0
16.0
28,0
Zawartość chromu (%)
1,0 maks
16.0
1.5
Tensile Strength (ksi)
110 min
100 min
110 min
Yield Strength (ksi)
51 min
40 min
40 min
Odporność na korozję
Excellent in reducing environments, withstands sulfuric, hydrochloric, and phosphoric acids.
Wide range of corrosive environments, excellent resistance to oxidizing and reducing acids.
Exceptional resistance to strong acids including hydrochloric acid, sulfuric acid, and other harsh chemicals.
This article provides a comprehensive overview of HASTELLOY alloy B-2 (UNS N10665), highlighting its chemical composition, mechanical properties, performance characteristics at different temperatures, industry applications, available shapes and sizes, production standards, welding and processing capabilities, as well as advantages, disadvantages, and comparisons with similar products. Each section is presented in a structured table format to ensure clarity and accessibility of technical information, catering to engineers, manufacturers, and professionals in the chemical and industrial sectors.
