GH3030 alloy, also known as Inconel Alloy 718, is a nickel-based
superalloy renowned for its exceptional combination of
high-temperature strength, corrosion resistance, and oxidation
resistance. It is widely used in various industries where
reliability under extreme conditions is paramount. Key Features: High-Temperature Strength: GH3030 retains significant mechanical strength at elevated
temperatures up to approximately 700°C (1300°F), making it suitable
for applications in gas turbines, aerospace components, and
high-temperature industrial environments. Corrosion and Oxidation Resistance: The alloy exhibits excellent resistance to corrosion and oxidation
in a wide range of aggressive environments, including aqueous and
high-temperature gases. Chemical Composition: GH3030 is composed primarily of nickel (about 52%), chromium
(20-24%), iron (5-15%), and smaller amounts of niobium, titanium,
and aluminum. This composition contributes to its superior
mechanical and thermal properties. Mechanical Properties: It offers high tensile and yield strength, with good ductility and
toughness even after prolonged exposure to high temperatures. Applications: Common applications include components for gas turbines, jet
engines, aerospace parts, industrial furnaces, and high-temperature
chemical processing equipment. Processing and Fabrication: GH3030 can be processed using conventional methods such as
forging, machining, and welding. Its weldability and formability
allow for versatile manufacturing capabilities. Non-Magnetic Properties: GH3030 is non-magnetic in the annealed condition, making it
suitable for applications where magnetic interference must be
minimized.
GH3030 alloy is recognized for its reliability and performance in
demanding environments, offering a balance of strength, resistance
to environmental degradation, and ease of fabrication that meets
the stringent requirements of high-performance industries. Here's a typical composition table for GH3030 alloy (Inconel Alloy
718): | Element | Composition (%) |
|---|
| Nickel (Ni) | Balance | | Chromium (Cr) | 19.0 - 21.0 | | Iron (Fe) | 18.5 - 20.0 | | Niobium (Nb) | 5.0 - 5.5 | | Molybdenum (Mo) | 2.8 - 3.3 | | Titanium (Ti) | 0.65 - 1.15 | | Aluminum (Al) | 0.2 - 0.8 | | Cobalt (Co) | ≤ 1.0 | | Manganese (Mn) | ≤ 0.35 | | Silicon (Si) | ≤ 0.35 | | Copper (Cu) | ≤ 0.30 | | Carbon (C) | ≤ 0.08 | | Sulfur (S) | ≤ 0.015 | | Phosphorus (P) | ≤ 0.015 |
This composition table outlines the typical ranges of key elements
present in GH3030 alloy (Inconel Alloy 718), providing insight into
its chemical makeup essential for its high-temperature strength and
corrosion resistance properties. |
