What is the Difference Between Nickel-based Alloys and Ordinary Stainless Steel

Guotai Junan released a research report saying that under the background of carbon neutrality, the scarcity of coal mines is prominent, and the value of assets will continue to increase. The high point of capital expenditure in the coal industry appeared in 2012. Under the general direction of carbon neutrality, the overall investment in the industry has slowed down, and capital expenditure has gradually declined. From 2021 to now, the Energy Bureau of the National Development and Reform Commission has only newly approved 17.4 million tons of Inconel625 powder.

In fact, in essence, nickel-based alloys are also a kind of stainless steel. They are just special stainless steels. The chemical composition is also different from ordinary stainless steel. Nickel-based alloys are high in nickel, high chromium, and high molybdenum. A high-alloy stainless steel of high-alloy stainless steel.

Among them, the famous steel is 6% Mo (254SMo). This steel has good local corrosion resistance. It has good pitting corrosion resistance and better stress corrosion resistance under the conditions of seawater, aeration, clearance and low-speed scouring (PI≥40). It is an alternative material for nickel-based alloys and titanium alloys. Secondly, it has excellent high temperature or high temperature corrosion resistance or corrosion resistance. It is irreplaceable for 304 stainless steel. In addition, from the perspective of the classification of stainless steel, the metallographic structure of special stainless steel is a stable austenitic metallurgical structure.

Because nickel-based alloy is a high-alloy high-performance special material, its manufacturing process will be more complicated than ordinary stainless steel products. At present, most of them still rely on traditional processes for manufacturing, such as: infusion, forging, rolling and other processes.

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