1J66 4J32 Nickel Alloy Pipe

1J66 4J32 nickel alloy Pipe

Iron-nickel alloy Iron-nickel alloy with a nickel content of 30% to 90% is often called permalloy. Within this composition range, by adding appropriate amounts of alloying elements and using appropriate processes, soft magnetic alloys with different magnetic properties such as high magnetic permeability, constant magnetic permeability, and constant moment magnetism can be obtained. Permalloy has high plasticity and can be cold-rolled into ultra-thin strips of 1 μm. It is a type of soft magnetic alloy that is widely used. It can be used as cores and magnetic shields under weak magnetic fields, as well as pulse transformers and inductor cores with low residual magnetism and constant magnetic permeability. It can also be used as high square ratio alloys, thermomagnetic compensation alloys and magnetostrictive alloys, etc. . Its disadvantages are that it is expensive and suffers large losses when used under ultra-high frequency magnetic fields.
4J32 alloy is also called Super-Invar alloy. In the temperature range of -60-80°C, its expansion coefficient is lower than that of 4J36 alloy, but its low-temperature structural stability is worse than that of 4J36 alloy. This alloy is mainly used to manufacture instrument parts that require highly precise dimensions within the ambient temperature range.