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Arialloy are carefully crafted using only the finest materials. Our production team offers superior craftsmanship with over 10 years of experience working with hastelloy g3 tubes / sheets / wires / bars / fittings
Hastelloy G-3 Material Properties
UNS N06985 Overview
Explore the chemical composition, corrosion resistance, mechanical properties, and temperature characteristics of hastelloy g3 for optimal resistance, strength, and stability
Hastelloy G-3 Chemical Composition
Hastelloy G3 Material Properties Overview
As a manufacturer and supplier in China, Arialloy supplies cost effective hastelloy G3 products.
Hastelloy G3 (UNS N06985 / W.Nr. 2.4619) is an austenitic nickel alloy containing chromium, iron, molybdenum and copper. Its composition combines 21.0 to 23.5% chromium, 18.0 to 21.0% iron, 6.0 to 8.0% molybdenum and 1.5 to 2.5% copper, with nickel forming the balance. This combination provides resistance to both oxidizing and reducing media. Chromium supports resistance to oxidizing chemicals, while nickel and copper contribute to resistance in reducing conditions. Molybdenum improves protection against pitting and crevice attack. Carbon is limited to 0.015%, helping reduce sensitization and preserve resistance to intergranular corrosion around welded joints. The nickel content also contributes to resistance against stress corrosion cracking in environments containing chlorides.
The alloy combines good weldability with ductility in the annealed condition. Conventional arc welding processes can be used with suitable filler materials. Cold working increases strength and hardness, while annealing restores a softer condition. Heat treatment does not provide an age hardening response, so the required mechanical properties depend on the processing route and final material condition.
These characteristics give hastelloy G3 a balance of chemical resistance, fabrication flexibility and mechanical performance, with particular resistance to phosphoric and sulfuric acids.
Hastelloy G-3 Corrosion Resistance
Hastelloy G3 resists general corrosion in both oxidizing and reducing environments, with particular strength in phosphoric and sulfuric acids. Its molybdenum content improves resistance to localized attack, while nickel helps resist stress corrosion cracking in solutions containing chlorides.
Low carbon reduces sensitization during welding, helping preserve resistance to intergranular attack in the surrounding metal. Corrosion performance depends on acid concentration, temperature, impurities and the balance between oxidizing and reducing species. These factors should be assessed together when comparing resistance in mixed or contaminated acid solutions.
Hastelloy G3 Mechanical Properties
In the annealed condition, hastelloy G3 has typical room temperature tensile strength of approximately 690 MPa, 0.2% offset yield strength of 320 MPa and elongation of 50%. This combination provides useful strength and substantial ductility for subsequent fabrication. Cold working increases strength and hardness, with a corresponding reduction in the ductility available for further deformation.
Hastelloy G-3 Temperature Characteristics
Hastelloy G3 has a melting range of approximately 1260 to 1343°C. Its thermal conductivity increases from about 10.0 W/m·K at 25°C to 21.8 W/m·K at 600°C. Its specific heat is approximately 453 J/kg·K at 25°C. The mean thermal expansion coefficient is approximately 14.6 µm/m·°C between 24 and 100°C, rising to 15.1 µm/m·°C between 24 and 600°C.
These values describe its response to heating and do not establish a maximum operating temperature. Temperature limits depend on the corrosive environment, applied stress, exposure duration and metallurgical condition.
Hastelloy G3 Products
Nickel Alloy G-3 Product Types
With advanced equipment and expert craftsmanship, we create durable, high performance nickel alloy g3 products tailored to each project’s needs
Hastelloy G-3 Data Sheet
Hastelloy Alloy G3 Data Sheet
Access / download the hastelloy g-3 data sheet to gain in depth insights into precise physical and processing parameters
Sicherstellung der Auswahl des optimalen Nickellegierungswerkstoffs für Ihr Projekt
Mechanische Eigenschaften
| Product | Zugfestigkeit | Streckgrenze (0,21 TP18T-Offset) | Dehnung | ||
|---|---|---|---|---|---|
| ksi | MPa | ksi | MPa | % | |
| Sheet & Plate (Annealed) | 90 | 621 | 35 | 241 | 45 |
| OCTG (Cold worked) | 130 | 896 | 125 | 862 | 13 |
Hastelloy G3 Standards
UNS N06985 Specifications & Standards
Von der Fertigung bis zur Prüfung erfüllen wir strenge Qualitätsstandards und berücksichtigen dabei die Anforderungen hinsichtlich Toleranzen und chemischer Zusammensetzung.
ASTM B622
Nahtlose Rohre und Röhren
ASTM B619
Geschweißtes Rohr
ASTM B626
Geschweißtes Rohr
ASTM B366
Fittings
ASTM B581
Billet, Rod and Bar
ASTM B582
Bleche, Platten und Bänder
AWS A5.14 ERNiCrMo-9
Schweißzusatz
AWS A5.11 ENiCrMo-9
Schweißelektrode
Hastelloy G-3 SHOW
Nickel Alloy G3 Showcase
From initial samples to large scale production, we supply high quality hastelloy g-3 products and help you achieve your manufacturing goals.


























Laden Sie Ihre Anforderungen hoch
Geben Sie zunächst Ihre Kontaktdaten sowie den Produkttyp, die Abmessungen, die Menge und die erforderlichen Normen an. Falls Sie über CAD-Zeichnungen, Spezifikationen oder besondere Toleranzanforderungen verfügen, laden Sie diese bitte hoch.
Angebot und Entwurfsprüfung anfordern
Innerhalb von 12 Stunden senden wir Ihnen ein detailliertes Angebot sowie Feedback zur (kundenspezifischen) Fertigungsfähigkeit (DFM). Dies gewährleistet die wirtschaftliche Machbarkeit Ihres individuellen Projekts und vermittelt Ihnen einen klaren Überblick über die damit verbundenen Kosten.
Bestellung bestätigen und Produktion starten
Sobald Sie das Angebot und den Entwurf genehmigt haben, wird Ihr Projekt am Morgen nach Eingang Ihrer Bestätigung in unsere Produktionswarteschlange aufgenommen.
Versand & Lieferung
Im Durchschnitt werden Sonderanfertigungen innerhalb von 20 bis 45 Werktagen versandt. Lagerware und Muster werden innerhalb von 48 Stunden versandt.
Nur 4 Schritte
Custom Hastelloy G3 Quotation Process
Von der ausführlichen Beratung bis zur endgültigen Lieferung sorgen wir dafür, dass custom hastelloy g-3 product Bestellungen einfach und bequem. Mit unserem hervorragenden Kundenservice nehmen wir Ihre Bedürfnisse vorweg, bieten professionelle Lösungen und gewährleisten eine pünktliche Lieferung.
Hastelloy G3 Supplier - Arialloy
Von der Produktion bis zur Qualitätskontrolle – jeder Schritt ist auf Perfektion ausgerichtet
Arialloy hastelloy alloy g-3 manufacturer has always been at the forefront of the industry. With its unremitting pursuit of quality, precision, and professional solutions, Arialloy has gradually established a complete production system and rapid supply capabilities. By continuously improving manufacturing processes, adopting cutting edge equipment, and adhering to strict quality control, Arialloy ensures that every product meets the highest requirements for durability, precision, and international standards

Hastelloy G3 Knowledge
Nickel Alloy G-3 Wiki
Arialloy geht gemeinsam mit Ihnen alle Faktoren durch, die Ihre Entscheidung beeinflussen
einschließlich chemischer Zusammensetzung, mechanischer Eigenschaften, Temperatureigenschaften, Preis und Herstellungsverfahren

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Hastelloy Alloy Grades
Explore the full range of hastelloy alloys to expand your material choices and ensure you find the perfect nickel alloy
Custom Hastelloy G3 FAQs
Unser Expertenteam steht Ihnen bei jedem Schritt zur Seite und hilft Ihnen dabei, Ihre Vision in die Realität umzusetzen. Lesen Sie die FAQs, um weitere Unterstützung zu erhalten.
Our hastelloy g3 purchasing procedure begins with your material requirements. You can send them to sales@arialloy.com or submit them using the form below. We will prepare a detailed quotation for you. If you accept our offer, send your PO and we will issue the PI. Once the prepayment is received, production will begin, and we will notify you when the material is ready.
We typically turn an hastelloy g3 inquiry into a quotation within 24 hours. Where this is not possible because of incomplete information or other limitations, our sales team will notify you promptly.
The usual FOB process for hastelloy g3 is that the customer designates the freight forwarder and we cooperate with that forwarder on the local side. If you prefer not to make the shipping arrangements yourself, we can take care of transportation and check the corresponding freight expense.
Hastelloy G-3 pricing is influenced by the market conditions of the metals used in its composition. Since nickel, chromium, molybdenum, and iron and other raw metallic elements contribute to production costs, fluctuations in these markets can be reflected in the alloy’s price.
We have the ability to take hastelloy g3 from the smelting stage within our own factory. More than 30 vacuum smelting and electroslag remelting furnaces are available, with capacities of 50 kg, 200 kg, 1,000 kg, and 5,000 kg. This lets us accommodate a wide range of batch requirements.
Yes, hastelloy g3 test reports are provided before shipment and prepared according to industry standards. They contain the key information needed for material verification, including standard, chemistry, mechanical properties, dimensions, and heat number.
We maintain chemical composition control for hastelloy g3 from smelting through final inspection. Material ratios are carefully managed, chemical analysis is conducted during production, and PMI testing is performed on the finished product. Independent laboratory testing is also available.



