Hastelloy G-3
UNS N06985
Catalog
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
ensuring the selection of the optimal nickel alloy material for your project
Mechanical Properties
| Product | Tensile Strength | Yield Strength (0.2% Offset) | Elongation | ||
|---|---|---|---|---|---|
| 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
From production to inspection, we meet strict quality standards, addressing tolerance and chemical composition needs
ASTM B622
Seamless Pipe & Tube
ASTM B619
Welded Pipe
ASTM B626
Welded Tube
ASTM B366
Fittings
ASTM B581
Billet, Rod and Bar
ASTM B582
Plate, Sheet and Strip
AWS A5.14 ERNiCrMo-9
Filler Metal
AWS A5.11 ENiCrMo-9
Welding Electrode
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.
Upload Your Requirements
To begin, provide your contact details with the product type, dimensions, quantity, and required standards. If you have CAD drawings, specifications, or special tolerance requirements, please upload them
Receive a Quote & Design Review
Within 12 hours, we’ll send you a detailed quote and (custom) design for manufacturability (DFM) feedback. This ensures the cost feasibility of your custom project and gives you a clear idea of the costs involved
Confirm Your Order & Begin Production
Once you approve the quote and design, your project will enter our production queue the morning after we receive your confirmation
Shipping & Delivery
On average, custom production orders ship within 20–45 business days. In stock products and samples ship within 48 hours
Just 4 Steps
Custom Hastelloy G3 Quotation Process
From detailed consultation to final delivery, we make custom hastelloy g-3 product orders simple and convenient. With exceptional customer service, we anticipate your needs, provide professional solutions, and ensure on time delivery
Hastelloy G3 Supplier - Arialloy
From Production to Quality Control, Every Step Tailored to Perfection
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 G-3 Applications
UNS N06985 Alloy Solutions
We serving diverse industries, focus on strict quality control and full scale production, turning your vision into reality with professional expertise and attention to detail
Hastelloy G3 Knowledge
Nickel Alloy G-3 Wiki
Arialloy explores with you every factor that influences your choice
including chemical composition, mechanical properties, temperature characteristics, price, and manufacturing process
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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
Our team of experts is here to support you every step of the way, helping transform your vision into reality. Explore FAQs for related support
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.