Material in a Cone Liner
Posted by Chris from Calgary, AB, CA on September 10, 2009
What is the composition make up of a manganese cone liner? Is there Iron in it and if so how much expressed as a %. Thank you.
The typical manganese steel cone liner is made from ASTM A128 grade B-2. This covers a range of alloys that fit within the following composition range: 1.05-1.20% Carbon, 11.5-14.0% Manganese. These alloys also have some silicon and tramp elements with the remainder being approximately 85% elemental iron. Chromium, molybdenum and nickel can also be added to these steels for various reasons. Columbia Steel Casting Co., Inc. and other producers also produce liners from various premium grades of manganese steel that contain additional carbon, manganese and other alloy elements to improve the service life of the casting.
Answered by: David Havel, P.E., Chief Metallurgist




