Heat Resistant Alloys
NASH330
- JISー
- UNSN08330
- DIN/ENー
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 | 35Ni-18Cr-1.2Si |
---|---|
Product shape |
|
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. |