OK Tubrodur 55 O A (formerly OK Tubrodur 14.70) is a self-shielded, Cr-carbide type flux-cored wire. The weld metal is extremely resistant to abrasive wear by gritty fine-grain materials such as earth, ore, clay, etc. Typical applications are the hardfacing of bucket lips, auger points, mining and earthmoving equipment, scraper blades etc. A maximum of 2-3 layers should be deposited.