D417 High Speed Tool Steel Welding Rod Model: EDD-B-15 surfacing hardness HRC: ≥ 55 (after welding, air-cooled) 
 Description: High speed tool steel welding electrodes, DC reverse, good process, abrasion resistance and crack resistance. 
 Use: strong impact wear resistance welding, corrosion, cavitation of the occasion, such as single and double teeth roll crusher, blades, blast furnace bell, also used for surfacing a variety of stamping dies.