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.
Composition chimique
Élément
Composition (%)
Nickel (Ni)
66.0 min
Chrome (Cr)
21.0 – 23.5
Fer (Fe)
5.0 – 7.0
Molybdène (Mo)
6,0 – 8,0
Cuivre
1,0 – 2,5
Manganèse (Mn)
1,0 maximum
Silicium (Si)
0.70 max
Carbone (C)
00,05 – 0,15
Soufre (S)
00,015 maximum
Phosphore (P)
00,015 maximum
Propriétés mécaniques
Propriété
Valeur
Résistance à la traction, ksi (MPa)
110 (760) min
Limite d'élasticité (compensation de 0,2 %), ksi (MPa)
52 (360) min
Allongement (% en 2 pouces)
40 minutes
Dureté, Rockwell C (HRC)
25 – 35
Performances à différentes températures
HASTELLOY® G™ alloy exhibits excellent performance across varying temperature ranges:
Température ambiante :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.
Basses températures :Retains ductility and toughness at cryogenic temperatures, ensuring reliability in extreme environments.
Applications industrielles
HASTELLOY® G™ alloy finds applications across various industries due to its superior corrosion resistance:
Secteur industriel
Applications
Traitement chimique
Reactors, heat exchangers, and piping systems handling aggressive chemicals such as acids and chlorides.
Pâtes et papiers
Equipment for bleach plants, digesters, and evaporators exposed to corrosive media.
Pétrole et Gaz
Components in refineries and petrochemical plants exposed to sour gas environments containing hydrogen sulfide.
Pharmaceutique
Pharmaceutical processing equipment requiring resistance to harsh chemicals.
Excellente soudabilité grâce aux méthodes TIG, MIG, garantissant des joints solides et fiables dans des environnements corrosifs.
Traitement
Usinable selon des méthodes conventionnelles, offrant une flexibilité dans les processus de fabrication.
Polissage
Capable d’obtenir des finitions lisses pour une résistance à la corrosion et un attrait esthétique améliorés.
Traitement thermique
Annealing at 2050°F (1121°C) followed by rapid quenching optimizes material properties and performance.
Traitement à froid, avantages et inconvénients
Aspect
Détails
Traitement à froid
Conserve la ductilité et la formabilité à température ambiante, facilitant ainsi la mise en forme et la fabrication.
Avantages
Exceptional resistance to a wide range of aggressive chemicals, high mechanical strength, and reliability in extreme environments.
Désavantages
Higher initial cost compared to conventional stainless steels, limited availability of specific shapes and sizes.
Produits similaires
Nom du produit
Comparaison
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.
Comparaison de produits similaires
Propriété/caractéristique
Hastelloy G™
Hastelloy C-276
Hastelloy C-22
Teneur en nickel (%)
66.0
57,0
56,0
Teneur en molybdène (%)
6,0 – 8,0
15.0 – 17.0
12,5 – 14,5
Teneur en chrome (%)
21.0 – 23.5
14.5 – 16.5
20,0 – 22,5
Résistance à la traction (ksi)
110 min
110 min
115 minutes
Limite d'élasticité (ksi)
52 min
52 min
55 minutes
Résistance à la corrosion
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.
