How Much Is Nickel-based Superalloy?

How much is nickel-based superalloy? With the development of scientific and technological production, the production process of alloys has become more and more perfect. Nickel-based superalloys are mainly used in some important industries, so the quality must be strictly passed. Therefore, the price of nickel-based superalloys is slightly higher than that of ordinary metals. Due to the different models and specifications produced by different manufacturers, nickel-based superalloys are also different. Below, Haibowell editor will explain in detail how much nickel-based superalloys cost!

There are many kinds of nickel-based superalloys, and their prices are related to the corresponding metals. Different manufacturers, different proportions, and different prices in different places are not quite the same. At present, the mainstream market price of low nickel-iron alloys is about US$440/nickel, and the higher price is US$450/nickel; the mainstream ex-factory price of medium nickel-iron 4-6% is about US$180/nickel, and the higher price is US$190/nickel.

Nickel-based superalloys refer to alloys that can be hot and cold deformed, with an operating temperature range of -253 to 1320°C, good mechanical properties and comprehensive strength and toughness indicators, and high oxidation and corrosion resistance. According to the heat treatment process, it can be divided into solid solution strengthening alloy and aging strengthening alloy.

1) Solid solution strengthening alloy

The operating temperature range is 900～1300℃, and the oxidation resistance temperature reaches 1320℃. For example, GH128 alloy has a room temperature tensile strength of 850MPa and a yield strength of 350MPa; the tensile strength at 1000℃ is 140MPa, the elongation is 85%, and the endurance life of 1000℃ and 30MPa stress is 200 hours and the elongation is 40%. Solid solution alloys are generally used to make aviation and aerospace engine combustion chambers, casings and other parts.

2) Age strengthening alloy

The operating temperature is -253～950℃, and it is generally used to make structural parts such as turbine disks and blades of aviation and aerospace engines. The alloy working temperature for making turbine disks is -253～700℃, and it is required to have good high and low temperature strength and fatigue properties. For example: GH4169 alloy, the yield strength at 650℃ is 1000MPa; the alloy temperature for making blades can reach 950℃, for example: GH220 alloy, the tensile strength at 950℃ is 490MPa, and the endurance life at 940℃ and 200MPa is more than 40 hours.

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