Production process, relevant policies and industrial chain structure of China's high-temperature alloy industry in 2025
High-temperature alloy refers to a type of metal material based on iron, nickel and cobalt, which can work for a long time at high temperatures above 600℃ and under certain stress. It has excellent high-temperature strength, good oxidation resistance and thermal corrosion resistance, good fatigue performance, fracture toughness and other comprehensive properties. It is also called "superalloy" and is mainly used in the aerospace and energy fields. According to the matrix elements, high-temperature alloys can be divided into iron-based high-temperature alloys, nickel-based high-temperature alloys and cobalt-based high-temperature alloys; according to the preparation process, high-temperature alloys can be divided into deformed high-temperature alloys, cast high-temperature alloys and new high-temperature alloys. The high-temperature alloys currently used are mainly deformed high-temperature alloys based on nickel-based elements.
The production process of high-temperature alloys is long, the process is complex, and the technical barriers are high. Taking deformed high-temperature alloys as an example, it mainly includes smelting, ingot billeting, forging, forging, hot upsetting, cold rolling, cold upsetting, cold drawing, heat treatment, machining, welding, stamping and other processes, so it has extremely high requirements in production equipment, technology, experience and other aspects.
my country's high-temperature alloy industry is mainly used in aerospace, nuclear power, automobiles, gas turbines and other fields. High-temperature alloys provide key materials and core components for downstream industry production. In recent years, relevant national departments have successively issued a series of relevant policies to support and encourage the development of high-temperature alloy related technologies, providing a good policy environment for the industry.
The upstream of the high-temperature alloy industry chain is mainly metal raw materials such as iron, cobalt, nickel, tungsten, molybdenum, rhenium and related smelting equipment; the midstream is the production and supply link of high-temperature alloys, and the main products include deformed high-temperature alloys, cast high-temperature alloys and powder high-temperature alloys; the downstream is mainly used in aerospace, energy and power, gas turbines, automotive industry and other fields. In recent years, with the recovery of the global economy and the advancement of technology, the development of metal mining and smelting industries has gradually accelerated, providing a stable supply of raw materials for the high-temperature alloy industry.
High-temperature alloys are widely used in aerospace, energy and power, machinery, automotive industry and other fields. Among them, the demand in the aerospace field accounts for the largest proportion, because high-temperature alloys have excellent high-temperature resistance and mechanical properties, and are key materials for manufacturing high-performance equipment such as aircraft engines and gas turbines. In addition, with the continuous expansion of the new energy vehicle market, the demand for high-temperature alloys in the automotive industry is also gradually increasing. The world consumes about 300,000 tons of high-temperature alloy materials each year, of which the aerospace field accounts for about 55% of the total usage, followed by the power field and the machinery field, accounting for 20% and 10% respectively.
