+8615824687445
Home / Knowledge / Details

Feb 05, 2026

Information on Haynes 230 alloy and Inconel 718 alloy

Gnee Steel is a company specializing in the production of Inconel 718 alloy products, Nickel 201, Nickel 202, Hastelloy C-276, Hastelloy C-22, Hastelloy B, Hastelloy C-4, Inconel 600, Inconel 625, Inconel 718, Inconel X-750, Incoloy 800, Incoloy 800H/HT, Incoloy 825, Monel 400, Monel K500, and other high-temperature alloy materials. We specialize in the production and sales of alloy materials. Gnee Steel's products are widely used in aerospace, chemical, power generation, automotive, nuclear energy, and other fields, and we can provide customized alloy material solutions according to customer needs. 

 
 
 
Information on Haynes 230 alloy and Inconel 718 alloy
Information on Haynes 230 alloy and Inconel 718 alloy
01.

Information on Haynes 230 alloy and Inconel 718 alloy

Haynes 230 and Inconel 718 are both high-performance nickel-based superalloys designed for extreme environments. Haynes 230 offers exceptional long-term performance at high temperatures up to 2100°F (1149°C) and possesses excellent oxidation resistance and thermal stability. Inconel 718 is a precipitation-hardened alloy with higher strength and superior creep resistance, typically used in temperature environments up to 1300°F (704°C).

02.

What is Haynes 230 alloy material?

HAYNES 230 (UNS NO6230) alloy is a nickel-chromium-tungsten-molybdenum alloy that combines excellent high-temperature strength, outstanding corrosion resistance during prolonged exposure to oxidizing environments at temperatures up to 2100°F (1149°C), superior resistance to nitriding environments, and excellent long-term thermal stability.

Haynes 230 Alloy Material

Haynes 230 Overview

Haynes 230 is a nickel-based high-temperature alloy known for its high-temperature strength, oxidation resistance, and durability. Its main components include nickel, chromium, tungsten, and molybdenum, along with a small amount of lanthanum. This composition allows it to maintain stability and excellent performance in extreme environments, especially at temperatures up to 2100°F (1149°C).

 

Inconel 718 Overview

Inconel 718 is another important nickel-chromium high-temperature alloy, characterized by its significant content of iron, niobium, and molybdenum. It also contains small amounts of titanium and aluminum, which enhance its mechanical properties and resistance to oxidation and corrosion. Inconel 718 is widely used in applications requiring high temperature strength and durability, although its applicable temperature range is slightly lower than that of Haynes 230.

 

Haynes 230 vs Inconel 718

Haynes 230 vs Inconel 718

 

Comparison of the chemical compositions of Haynes 230 and Inconel 718

Element Haynes 230 (Approximate Percentage) Inconel 718 (Approximate Percentage)
Nickel (Ni) 58-60% 50-55%
Chromium (Cr) 20-22% 18-21%
Tungsten (W) 14-16% Trace amounts
Molybdenum (Mo) 1-2% 2.8-3.3%
Iron (Fe) Minor amounts 18-20%
Niobium (Nb) Trace amounts 4.75-5.5%
Lanthanum (La) Present Not specified
Titanium (Ti) Not specified 0.65-1.15%
Aluminum (Al) Not specified 0.20-0.80%

 

High-Temperature Strength Comparison of Haynes 230 and Inconel 718

Haynes 230
Haynes 230 alloy has a melting point of approximately 2200°C, making it perform exceptionally well in extreme high-temperature environments. Due to its high chromium and tungsten content, this alloy maintains excellent oxidation resistance at temperatures up to 2100°F (1150°C), making it ideal for industrial furnaces, gas turbines, and other high-temperature environments requiring long-term stability.

 

Inconel 718
Inconel 718 has a melting point of approximately 1300°C, which is lower than Haynes 230, but it still performs well at moderate high temperatures (typically up to 1800°F (982°C)). It is particularly suitable for applications where temperatures do not exceed this range. The alloy's performance at lower temperatures (below 500°F or 260°C) is also noteworthy, providing excellent strength and oxidation resistance for applications requiring long-term exposure to moderate high-temperature environments.

 

Oxidation Resistance of Haynes 230 and Inconel 718

Oxidation resistance determines a material's ability to withstand corrosion in high-temperature corrosive environments.
Haynes 230
Haynes 230 exhibits superior oxidation resistance in highly oxidizing environments, such as industrial furnaces and exhaust systems. The stable oxide layer formed on the surface of Haynes 230 protects the underlying metal from further oxidation. This characteristic is particularly advantageous for applications requiring long-term exposure to high temperatures and oxidizing environments.

 

Inconel 718
Inconel 718 also demonstrates excellent oxidation resistance, but it is more suitable for environments containing corrosive chemicals such as chloride ions, sulfuric acid, and nitric acid. The high chromium and nickel content of Inconel 718 makes it a preferred material in the chemical and marine industries, which require both high strength and resistance to harsh chemicals.

 

Summary:
When choosing between Haynes 230 and Inconel 718 alloys, carefully consider the specific requirements of your application before making a decision. While both alloys offer excellent strength and corrosion resistance at high temperatures, their differing compositions make them more suitable for different applications, depending on your specific needs. If you require an alloy with exceptional strength at high temperatures, Inconel 718 may be the best choice; however, if cost is a significant factor, consider Haynes 230 – it offers equally excellent performance at a lower price!

Gnee Steel

 

About Gnee Steel

Gnee Steel is a professional manufacturer of various nickel-based alloys, including Nickel 201, Nickel 202, Hastelloy C-276, Hastelloy C-22, Hastelloy B, Hastelloy C-4, Inconel Alloy 600, Inconel 625, Inconel 718, Inconel X-750, Incoloy Alloy 800, Incoloy 800H/HT, Incoloy 825, Monel Alloy 400, Monel K500, and high-temperature alloys. We specialize in the production and sales of alloy materials. Gnee Steel's products are widely used in aerospace, chemical, power, automotive, and nuclear energy industries, and we can provide customized alloy material solutions according to customer needs. For alloy material price inquiries or to request customized alloy material solutions, please feel free to contact us at ru@gneesteelgroup.com for a quote.

You Might Also Like

Send Message