Hastelloy is a kind of nickel-based alloy. It is mainly divided into three series: B, C and G. It is mainly used for strong corrosion of iron-based Cr-Ni or Cr-Ni-Mo stainless steel and non-metallic materials. It has been widely used in kerosene, chemical industry, environmental protection and many other fields in the world.

Hastelloy alloy

At present, it is mainly divided into three series: B, C, and G. It is mainly used in places with strong corrosive media that cannot be used, such as iron-based Cr-Ni or Cr-Ni-Mo stainless steel, and non-metallic materials.

In order to improve the corrosion resistance and cold and hot workability of Hastelloy alloy, Hastelloy alloy has carried out three major improvements first, and its development process is as follows:

B series: B → B-2(00Ni70Mo28) → B-3

C series: C → C-276(00Cr16Mo16W4) → C-4(00Cr16Mo16) → C-22 (00Cr22Mo13W3) → C-2000(00Cr20Mo16)

G series: G → G-3 (00Cr22Ni48Mo7Cu) → G-30 (00Cr30Ni48Mo7Cu)

Currently, the second-generation materials N10665 (B-2), N10276 (C-276), N06022 (C-22), N06455 (C-4) and N06985 (G-3) are widely used.