Kennametal carbide does the job with room to spar e.
These rings operate dry at 100 psi maximum box pressure and 3500 rpm with no lubrication. If low temperatures and wear are giving you trouble, call us. Approaching corrosion resistance of the noble metals Kennametal carbide is used extensively as a material for making components subject to a combination of abrasion and corrosion, such as seal rings and valving parts. Examples of such applications are valving in oil well operations and hydraulic systems, as well as parts for chemical processing equipment. Packing had to be replaced every three weeks and the high alloy shafts had to be metallized or replaced every year.