Heat Resistant Alloys

NASH330

  • JIS
  • UNSN08330
  • DIN/EN

NASH330 is a heat resistant nickel alloy with excellent high temperature strength, corrosion resistance, and metallurgical stability. In particular, it provides superior resistance to carburization and nitridation. Because it has a fully austenitic microstructure, it displays good workability. Nippon Yakin supplies NASH330 in plate, sheet, and strip forms.

Products & Materials

NASH330ProductsPDF(726KB)

Chemical Composition 35Ni-18Cr-1.2Si
Product shape
CoilCoil
SheetSheet
PlatePlate
Workability The hot workability and cold workability of NASH330 are similar to those of conventional austenitic stainless steels. For hot working, a starting temperature of 1230℃ and finishing temperature of 980℃ are suitable. Cold workability is similar to that of conventional austenitic stainless steels. Work hardening tends to be slightly lower. Bending, drawing, and similar working are possible.
Weldability NASH330 can be welded by TIG, MIG, and shield metal arc welding in the same manner as with conventional standard austenitic stainless steels. AWS ERNiCr-3 welding electrodes are frequently used.
Heat Treatment Heat treatment of NASH330 is similar to that of conventional austenitic stainless steels. The typical heat treatment is as follows:
・Solution heat treatment: 1040~1120℃
Carbide dissolution and strain removal are performed in the above solution heat treatment.
Pickling Pickling is performed with a nitric-hydrofluoric acid solution or aqua regia solution (nitric-hydrochloric acid solution) in the same manner as with standard austenitic stainless steels.
Features NASH330 is used mainly in high temperature carburizing or nitriding atmospheres. It is most suitable for application in the 815~1150℃ temperature range.
Applications Furnace parts, Heat treatment fixtures, Carbonization furnace components.