IDM-200 Barrel

IDM-200 is offered as our "all-purpose" barrel and is indicated for moderate to high degrees of corrosion and/or abrasion.

Corrosion Resistance. IDM-200 easily withstands corrosive agents such as polycarbonates, PVC, clear resins and flame retardants. There are two basic reasons:

1. The alloy is extremely high in nickel (>72%).
2. The barrel is virtually devoid of free iron dilution, thus eliminating the greatest point of vulnerability to chemical attack in bimetallic barrels. This advantage traces to the remarkable speed of the Interfusion casting technology. As the alloy lining material is molten for mere seconds, there is virtually no apportunity for free iron to migrate from the backing cylinder into the alloy.

Abrasion Resistance. As IDM-200 is highly enriched with chromium carbides, it is also offers excellent wear resistance for abrasive conditions in the mid-range of severity, e.g., up to a 20% glass-filled resin.

It is important to note that IDM-200 is in a totally different class than the "all-purpose" barrels that are standard throughout the rest of the industry. Since these products use iron/boron alloy linings that are relatively low in chromium, they provide only limited abrasion resistance with virtually no protection at all from corrosion.

IDM-200 Alloy Composition -- As Cast

Element	_Pct._
Nickel	72 - 77
Chromium	10 - 13
Boron	03
Silicon	05
Iron	04-06
Carbon	<01

Alloy hardness after casting is 58-62 Rc.

Inductametals Corporation, 101 West Grand Ave., Suite 504. Tel: 312-467-1031; Fax: 312-467-1049.