Hastelloy G: Core Traits, Applications and Professional Supply from ZYTC Alloy

Hastelloy Gis a nickel-chromium Alloy Known for its exceptional corrosion resistance and heat resistance. This material is widely used in various industrial applications and is specifically designed for harsh environments. In this blog post, we will take a closer look at the composition, physical and mechanical properties, as well as the various uses of Hastelloy G.

Hastelloy G Chemical Composition
Hastelloy G contains nickel, chromium, and molybdenum, along with small amounts of cobalt, iron, and tungsten. Its chemical composition enables it to withstand extreme temperatures, making it ideal for use in harsh environments. This alloy is renowned for its excellent resistance to corrosion and oxidation.

Hastelloy G Physical Properties
Hastelloy G has a density of 8.22 g/cm³ and a melting point of 1370°C. It exhibits excellent thermal conductivity and a high degree of corrosion resistance. The material also possesses good creep resistance, making it highly suitable for high-temperature applications.

Hastelloy G Mechanical Properties
Hastelloy G offers excellent mechanical properties, making it an ideal choice for high-strength and demanding applications. It has a tensile strength of 675 MPa and a yield strength of 280 MPa. The material is also renowned for its superior fatigue strength and resistance to cracking.

Hastelloy G Standard

• ASTM B581
• ASTM B582
• ASTM B619
• ASTM B622
• ASTM B626
• DIN 2.4618

Hastelloy G Uses
Hastelloy G is used in a variety of applications, including chemical processing, gas turbines, industrial furnaces, and heat exchangers. This alloy is also utilized in the production of industrial chemicals within the aerospace industry. It is known for its exceptional resistance to various corrosive environments, making it an ideal choice for harsh chemical applications.

Hastelloy G Hardness
Hastelloy G has a maximum hardness of HRB 95. However, it is easily machinable, making it an ideal choice for various industrial applications.

Hastelloy G Heat Treatment
Hastelloy G can be heat-treated to enhance its strength and toughness. The material can be annealed at temperatures between 870°C and 980°C, followed by water quenching. It can also undergo solution annealing at temperatures ranging from 1038°C to 1149°C.

Hastelloy G Welding
Hastelloy G can be welded using standard welding methods. However, it is recommended to preheat the material to reduce the risk of cracking. This alloy can be welded using Gas Tungsten Arc Welding (GTAW), Gas Metal Arc Welding (GMAW), and Shielded Metal Arc Welding (SMAW).

Hastelloy G Corrosion Resistance
Hastelloy G exhibits strong resistance to corrosive environments, including resistance to sulfur and hydrofluoric acid. It is also resistant to pitting and crevice corrosion, making it ideal for harsh chemical environments.

ZYTC Alloy, with a long-standing development history in the alloy industry, boasts more than 30 years of rich experience in alloy production, management, and export. Equipped with its own rolling mill, the company has laid a solid foundation for stable production, strict quality supervision, and efficient delivery, winning trust from global customers.

To ensure product quality and meet global market demands, ZYTC Alloy has obtained internationally authoritative certifications including AS9120D and ISO9001. All our products are produced in strict accordance with global standards such as ASTM, AISI, DIN, GOST, AMS, and ISO, effectively satisfying the diverse needs of different industries and regions.

The excellent performance of Hastelloy G is closely related to its unique chemical composition. This alloy is mainly composed of nickel, chromium, and molybdenum, with a small amount of cobalt, iron, and tungsten added. Such a composition enables it to withstand extreme temperatures, and endows it with excellent corrosion resistance and oxidation resistance, making it ideal for long-term use in harsh environments.