Super Alloy HASTELLOY® G™ (UNS N06007) Product Introduction
HASTELLOY® G™ (UNS N06007) is a highly corrosion-resistant nickel-chromium-iron-molybdenum alloy designed for extreme environments where resistance to oxidizing and reducing acids is critical. This article provides a comprehensive introduction to HASTELLOY® G™ alloy, detailing its chemical composition, mechanical properties, performance across different temperatures, industry applications, available shapes and sizes, production standards, welding and processing capabilities, as well as advantages, disadvantages, and comparisons with similar products.
Composição química
Elemento
Composição (%)
Níquel (Ni)
66.0 min
Cromo (Cr)
21.0 – 23.5
Ferro (Fe)
5.0 – 7.0
Molibdênio (Mo)
6.0 – 8.0
Cobre
1.0 – 2.5
Manganês (Mn)
1,0 máx.
Silício (Si)
0.70 max
Carbono (C)
0.05 – 0.15
Enxofre (S)
00,015 máx.
Fósforo (P)
00,015 máx.
Propriedades mecânicas
Propriedade
Valor
Resistência à tração, ksi (MPa)
110 (760) min
Força de rendimento (compensação de 0,2%), ksi (MPa)
52 (360) min
Alongamento (% em 2 polegadas)
40 min
Dureza, Rockwell C (HRC)
25 – 35
Desempenho em diferentes temperaturas
HASTELLOY® G™ alloy exhibits excellent performance across varying temperature ranges:
Room Temperature:Exceptional resistance to oxidizing and reducing acids such as sulfuric acid, nitric acid, and hydrochloric acid.
Elevated Temperatures:Maintains high strength and corrosion resistance up to 1800°F (980°C), making it suitable for high-temperature chemical processing.
Low Temperatures:Retains ductility and toughness at cryogenic temperatures, ensuring reliability in extreme environments.
Aplicações Industriais
HASTELLOY® G™ alloy finds applications across various industries due to its superior corrosion resistance:
Setor Industrial
Formulários
Processamento Químico
Reactors, heat exchangers, and piping systems handling aggressive chemicals such as acids and chlorides.
Celulose e Papel
Equipment for bleach plants, digesters, and evaporators exposed to corrosive media.
Petróleo e Gás
Components in refineries and petrochemical plants exposed to sour gas environments containing hydrogen sulfide.
Farmacêutico
Pharmaceutical processing equipment requiring resistance to harsh chemicals.
Formas, tamanhos e padrões de produção
Formulário de produto
Formas disponíveis
Tamanhos disponíveis
Padrões de produção
Sheets/Plates
Pratos, Folhas
Espessura: 0,025″ – 1.000″ (0,64mm – 25,4mm)
ASTM B582
Barras
Round bars, hexagonal bars
Diâmetro: 0,25″ – 6,0″ (6,35mm – 152,4mm)
ASTM B582
Tubes/Pipes
Seamless tubes, welded pipes
OD: 0.5″ – 6.0″ (12.7mm – 152.4mm)
ASTM B619, ASTM B622
Padrões e notas correspondentes
Country/Region
Standard/Grade
USA
UNS N06007
Europe
2.4618
Alemanha
NiCr23Mo16Cu
França
NC23FeDU
Welding, Processing, Polishing, Heat Treatment
Processo
Detalhes
Soldagem
Excellent weldability using TIG, MIG methods, ensuring strong and reliable joints in corrosive environments.
Processing
Machinable using conventional methods, offering flexibility in fabrication processes.
Polimento
Capable of achieving smooth finishes for enhanced corrosion resistance and aesthetic appeal.
Tratamento térmico
Annealing at 2050°F (1121°C) followed by rapid quenching optimizes material properties and performance.
Cold Processing, Advantages, and Disadvantages
Aspecto
Detalhes
Cold Processing
Retains ductility and formability at room temperature, facilitating shaping and fabrication.
Vantagens
Exceptional resistance to a wide range of aggressive chemicals, high mechanical strength, and reliability in extreme environments.
Desvantagens
Higher initial cost compared to conventional stainless steels, limited availability of specific shapes and sizes.
Produtos Similares
Product Name
Comparação
HASTELLOY C-276 (UNS N10276)
Higher molybdenum content and broader resistance to oxidizing and reducing environments compared to G™ alloy.
HASTELLOY C-22 (UNS N06022)
Higher chromium content and resistance to oxidizing and reducing acids, including wet chlorine and ferric and cupric chlorides.
Comparison of Similar Products
Propriedade/Recurso
Hastelloy G™
Hastelloy C-276
Hastelloy C-22
Nickel Content (%)
66.0
57,0
56,0
Molybdenum Content (%)
6.0 – 8.0
15.0 – 17.0
12.5 – 14.5
Conteúdo de cromo (%)
21.0 – 23.5
14.5 – 16.5
20.0 – 22.5
Tensile Strength (ksi)
110 min
110 min
115 min
Yield Strength (ksi)
52 min
52 min
55 min
Resistência à corrosão
Excellent in oxidizing and reducing acids, including sulfuric, nitric, and hydrochloric acid.
Excellent in a wide range of corrosive environments, including strong oxidizers and reducing agents.
Excellent in oxidizing and reducing acids, including wet chlorine and ferric and cupric chlorides.
This comprehensive article provides a detailed introduction to HASTELLOY® G™ alloy (UNS N06007), encompassing 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.
