why in high HCL and NAOH concentration need use Hasetlloy material
Hastelloy tube is a kind of nickel-based alloy tube, which is mainly divided into three series: B, C and G. It is mainly used in iron-based Cr-Ni or Cr-Ni-Mo stainless steel, non-metallic materials and other occasions that can not be used as strong corrosion medium. It has been widely used in petroleum, chemical industry, environmental protection and many other fields abroad.
At present, it is mainly divided into three series: B, C and G. It is mainly used in iron-based Cr-Ni or Cr-Ni-Mo stainless steel, non-metallic materials and other unavailable corrosive media occasions.
The mechanical properties of Hastelloy tube are very outstanding. It has the characteristics of high strength and high toughness, so it is difficult to machine, and its strain hardening tendency is very strong. When the deformation rate reaches 15%, it is about twice that of 18-8 stainless steel. There is also a medium temperature sensitization zone in Harrington alloy tube, and its sensitization tendency increases with the increase of deformation rate. When the temperature is high, Hastelloy tube is easy to absorb harmful elements, which makes its mechanical properties and corrosion resistance decline.