HASTELLOY® G-30® alloy (UNS N06030) is a highly corrosion-resistant nickel-base alloy designed for use in severe environments involving strong oxidizing agents. This article provides a comprehensive introduction to HASTELLOY® G-30® alloy, covering 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)
46.0 – 49.0
Chrome (Cr)
29.0 – 31.5
Fer (Fe)
14,0 – 17,0
Molybdène (Mo)
4.0 – 6.0
Cobalt (Co)
2,5 maximum
Tungstène (W)
1.5 – 4.0
Manganèse (Mn)
1,0 maximum
Silicium (Si)
1,0 maximum
Carbone (C)
00,03 maximum
Phosphore (P)
00,04 maximum
Soufre (S)
00,02 maximum
Propriétés mécaniques
Propriété
Valeur
Résistance à la traction, ksi (MPa)
100 (690) minutes
Limite d'élasticité (compensation de 0,2 %), ksi (MPa)
45 (310) minutes
Allongement (% en 2 pouces)
40 minutes
Dureté, Rockwell C (HRC)
28 max
Performances à différentes températures
HASTELLOY® G-30® alloy exhibits excellent performance across varying temperature ranges:
Température ambiante :Superior resistance to a wide range of oxidizing and reducing environments, including sulfuric acid, phosphoric acid, and nitric acid.
Elevated Temperatures:Maintains high strength and corrosion resistance up to 1800°F (980°C), suitable for applications in chemical processing and pollution control equipment.
Basses températures :Retains ductility and toughness at cryogenic temperatures, ensuring reliability in extreme conditions.
Applications industrielles
HASTELLOY® G-30® alloy is utilized in various industries due to its exceptional corrosion resistance:
Secteur industriel
Applications
Traitement chimique
Reactors, heat exchangers, and piping systems handling aggressive chemicals such as acids, chlorides, and fluoride solutions.
Pollution Control
Scrubbers, stack liners, and ducts exposed to corrosive gases and acidic environments.
Pharmaceutique
Pharmaceutical processing equipment requiring resistance to harsh chemicals and sterilization solutions.
Pâtes et papiers
Equipment for bleach plants, digesters, and evaporators exposed to corrosive media.
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
Excellent 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-30® 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-30®
Hastelloy C-276
Hastelloy C-22
Teneur en nickel (%)
46.0 – 49.0
57,0
56,0
Teneur en molybdène (%)
4.0 – 6.0
15.0 – 17.0
12,5 – 14,5
Teneur en chrome (%)
29.0 – 31.5
14.5 – 16.5
20,0 – 22,5
Résistance à la traction (ksi)
100 minutes
110 min
115 minutes
Limite d'élasticité (ksi)
45 minutes
52 min
55 minutes
Résistance à la corrosion
Excellent in oxidizing and reducing acids, including sulfuric, phosphoric, and nitric 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 detailed article serves as an in-depth introduction to HASTELLOY® G-30® alloy (UNS N06030), providing essential information on its composition, mechanical properties, performance characteristics, applications across various industries, available forms and sizes, production standards, welding and processing capabilities, as well as advantages, disadvantages, and comparisons with similar alloys. The structured presentation using tables ensures clarity and accessibility of technical details, catering to professionals seeking reliable corrosion-resistant materials for demanding environments.
