FW8102 40 ~ 45HRC hardness and wear resistance for demanding track, shafts, gears, billet roller, continuous, self roller, roller, all kinds of wheel, steering wheel, wire guide pulley; steel turnouts, rail ends , roller roller so on. Surfacing layer is lath martensite, with good toughness and impact resistance, suitable for wear resistant intermetallic occasions. 
 FW8103 58HRC often used stone machinery, dredging machinery, rubber machinery, and other vulnerable parts of the surfacing. Such as: large excavator production gear, crushers pendulum, fans mill around the disk, cross cutting and so on. Surfacing in a direct solderability carbon steel or alloy surface, high impact loads in the good and metal between Abrasive wear performance.