HASTELLOY C276 (UNS N10276) is a highly versatile nickel-molybdenum-chromium alloy renowned for its exceptional corrosion resistance in a wide range of severe environments. This article provides a detailed and rich introduction to HASTELLOY C276, covering 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.
Skład chemiczny
Element
Skład (%)
Nikiel (Ni)
57.0 min
Chrom (Cr)
14.5 – 16.5
Molibden (Mo)
15.0 – 17.0
Żelazo (Fe)
4.0 – 7.0
Tungsten (W)
3.0 – 4.5
Cobalt (Co)
2.5 max
Mangan (Mn)
1,0 maks
Vanadium (V)
00,35 maks
Krzem (Si)
0.08 max
Węgiel (C)
0.010 max
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)
52 (355) min
Wydłużenie (% na 2 cale)
40 min
Twardość, Rockwell C (HRC)
28 – 36
Wydajność w różnych temperaturach
HASTELLOY C276 exhibits excellent performance across varying temperature ranges:
Room Temperature:Superior resistance to corrosive media including oxidizing and reducing environments.
Elevated Temperatures:Maintains high strength and corrosion resistance up to 2000°F (1093°C).
Low Temperatures:Retains ductility and toughness at cryogenic temperatures, suitable for extreme environments.
Zastosowania branżowe
HASTELLOY alloy C276 is widely used in several industries due to its exceptional corrosion resistance:
Sektor przemysłowy
Aplikacje
Przetwarzanie chemiczne
Reactors, heat exchangers, and piping systems handling acids, chlorides, and other corrosive chemicals.
Petrochemical
Equipment for sulfuric acid production, pollution control, and chemical processing units.
Olej i gaz
Components exposed to sour gas environments containing hydrogen sulfide.
Pharmaceutical
Pharmaceutical processing equipment requiring resistance to aggressive chemicals.
Kształty, rozmiary i standardy produkcyjne
Formularz produktu
Dostępne kształty
Dostępne rozmiary
Standardy produkcyjne
Sheets/Plates
Talerze, prześcieradła
Grubość: 0,025 ″ – 1,000 ″ (0,64 mm – 25,4 mm)
ASTM B575
Słupy
Round bars, hexagonal bars
Średnica: 0,25″ – 6,0″ (6,35 mm – 152,4 mm)
ASTM B574
Rury/Rury
Seamless tubes, welded pipes
OD: 0.5″ – 6.0″ (12.7mm – 152.4mm)
ASTM B622, ASTM B619
Standards and Corresponding Grades
Country/Region
Standard/Grade
USA
USA N10276
Europe
2.4819
Niemcy
NiMo16Cr15W
Francja
NC17D
Welding, Processing, Polishing, Heat Treatment
Proces
Detale
Spawalniczy
Excellent weldability using TIG, MIG methods, ensuring strong and reliable joints in corrosive environments.
Processing
Machinable using conventional methods, offering flexibility in fabrication processes.
Polerowanie
Capable of achieving smooth finishes for enhanced corrosion resistance and aesthetic appeal.
Obróbka cieplna
Annealing at 2050°F (1121°C) followed by rapid quenching optimizes material properties and performance.
Cold Processing, Advantages, and Disadvantages
Aspekt
Detale
Cold Processing
Retains ductility and formability at room temperature, facilitating shaping and fabrication.
Zalety
Exceptional resistance to a wide range of corrosive chemicals, high mechanical strength, and reliability in harsh environments.
Niedogodności
Higher initial cost compared to conventional stainless steels, limited availability of specific shapes and sizes.
podobne produkty
Product Name
Porównanie
HASTELLOY C-22 (UNS N06022)
Comparable corrosion resistance, with higher chromium and tungsten content in C-22 providing improved resistance to oxidizing media.
INCONEL 625 (UNS N06625)
Lower molybdenum content, suitable for moderate to high temperature applications but with lower overall corrosion resistance compared to C276.
Comparison of Similar Products
Właściwość/funkcja
Hastelloy C276
Hastelloy C-22
INCONEL 625
Zawartość niklu (%)
57,0
56,0
61.0
Zawartość molibdenu (%)
15.0 – 17.0
12.5 – 14.5
8.0 – 10.0
Zawartość chromu (%)
14.5 – 16.5
20.0 – 22.5
20.0 – 23.0
Tensile Strength (ksi)
110 min
115 min
120 min
Yield Strength (ksi)
52 min
55 min
60 min
Odporność na korozję
Excellent in a wide range of corrosive environments, including strong oxidizers and reducing agents.
Excellent in oxidizing and reducing acids, including sulfuric, hydrochloric, and acetic acid.
Good resistance to oxidation and corrosion in high-temperature environments.
This comprehensive article provides a detailed introduction to HASTELLOY C276 (UNS N10276), covering its chemical composition, mechanical properties, performance in various environments, industry applications, available forms and sizes, production standards, welding and processing capabilities, as well as advantages, disadvantages, and comparisons with similar alloys. The structured format using tables ensures clarity and accessibility of technical information, catering to engineers, manufacturers, and professionals seeking corrosion-resistant materials for demanding applications.
