2016年6月6日星期一

NICKEL ALLOYS - Nickel 201 (UNS02201)

Nickel and nickel alloys are non-ferrous metals with:



  • High strength and toughness 
  • Excellent corrosion resistance
  • Superior elevated temperature properties



Nickel 201 (UNS 02201)

Characteristics


  • Good resistance to corrosion in acids and alkalis and is most useful under reducing conditions.
  • Outstanding resistance to caustic alkalis up to and including the molten state.
  • Virtually immune to inter granular attack above 315C, chlorates must be kept to a minimum.
  • In acid, alkaline and neutral salt solutions the material shows good resistance, but in oxidizing salt solutions severe attack will occur.
  • Resistant to all dry gases at room temperature and in dry chlorine and hydrogen chloride may be used in temperatures up to 550C.
  • Resistance to mineral acids varies according to temperature and concentration and whether the solution is aerated or not. Corrosion resistance is better in deaerated acid.

Applications

  • Manufacture and handling of sodium hydroxide, particularly at temperature above 300C.
  • Production of viscose rayon. Manufacture of soap.
  • Aniline hydrochloride production and in the chlorination of aliphatic hydrocarbons such as benzene, methane and ethane.
  • Manufacture of vinyl chloride monomer.
  • Storage and distribution systems for phenol - immunity from any form of attack ensures absolute product purity.
  • Reactors and vessels in which fluorine is generated and reacted with hydrocarbons.

Size ranges

  • OD 6.0 - 89.0 mm
  • WT 0.5 - 8.0 mm
  • Up to 12 meters

The tubes are strictly implements the standard specification ASTM B161/ASME SB161, ASTM B163/ASME SB163, ASTM B167/ASME SB167.





没有评论:

发表评论