4J36 Invar alloy is an iron-nickel alloy with a low coefficient of thermal expansion, which exhibits good stability at lower temperatures. This alloy is typically used in applications where it is necessary to withstand large temperature changes and to maintain dimensional stability.
The 4J36 invar alloy has a low coefficient of thermal expansion, which means it changes less in size when the temperature changes. This property makes 4J36 Invar ideal for manufacturing precision parts and structures that need to operate in different temperature environments, such as in optical instruments, precision machine tools, and aerospace.
4J36 Invar alloy is moderately difficult to machine and can be machined by conventional machining and welding techniques. However, it is important to note that due to the poor thermal conductivity of this alloy, special care needs to be taken to prevent cracks on its surface during processing.
The high level of 4J36 Invar alloy is mainly due to the expensive raw materials and processes used in its manufacturing process. In addition, since the use of this alloy is usually special, it is also affected by market demand and situation.
The hardness of 4J36 Invar alloy depends on the heat treatment conditions during its manufacture. Normally, 4J36 Invar alloy has a low hardness and can be improved by heat treatment. However, it is important to note that too high a hardness may cause the material to embrittle, so caution is required when choosing heat treatment conditions.
The corresponding grade of 4J36 Invar alloy is Invar 36, an iron-nickel alloy widely used in aerospace and precision manufacturing. In addition, 4J36 Invar alloy also has some common names, such as "constant temperature alloy" and "low expansion alloy", etc.
The ** of 4J36 Invar alloy varies from region to region and specification, usually around a few hundred yuan per kilogram. It should be noted that due to the special use of this alloy, it is also affected by market demand and situation.
The composition of 4J36 Invar alloy is mainly composed of iron and nickel, and also contains a small amount of cobalt, chromium, silicon and other elements. The content and proportion of these elements determine the properties and uses of 4J36 Invar alloy. For example, the coefficient of thermal expansion of the alloy can be controlled by adjusting the nickel content, while the addition of cobalt can improve its corrosion resistance.