Manufacturer: Nippon Yakin Kogyo Co., Ltd
Model : NASH330

NASH330 (UNS N08330)
Heat-Resistant Nickel Alloy

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.

Chemical Composition	33Ni-18Cr-1.2Si
Product shape	Coil	Sheet	Plate
Workability	The hot workability and cold workability of NAS-H330 are similar to those of conventional austenitic stainless steels. For hot working, a starting temperature of 1230°C and finishing temperature of 850°C 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	NAS-H330 can be welded by TIG, MIG, and shield metal arc welding in the same manner as with conventional standard austenitic stainless steels. Manufacturers frequently use AWS ERNiCr-3 welding electrodes.
Heat Treatment	Heat treatment of NAS-H330 is similar to that of conventional austenitic stainless steels. The typical heat treatment is as follows: Solution heat treatment: 1040-1120°C.The solution heat treatment process performs carbide dissolution and strain removal.
Pickling	Pickling is performed with a nitric hydrofluoric acid solution or aqua regia solution (nitric hydrofluoric acid solution) in the same manner as with standard austenitic stainless steels.
Features	NAS-H330 is used mainly in high temperature carburizing or nitriding atmospheres. It is most suitable for application in the 815-1150°C temperature range.

Steel Grade/Standard

Work Hardening Property

High Temperature Strength

Allowable Stress

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°C and finishing temperature of 980°C 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

You can weld NASH330 using TIG, MIG, and shielded metal arc welding, just as you do with conventional standard austenitic stainless steels. Manufacturers frequently use AWS ERNiCr-3 welding electrodes.

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°C
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°C temperature range.

Applications

Furnace parts, Heat treatment fixtures, Carbonization furnace components.