High carbon steel rod with material of: JIS SUJ2 / DIN 100Cr6 / ASTM E52100. Through heat treatment, the hardness is higher than common hardening chromium plated bar. Induction chrome shaft reaches uniform hardening thickness with no soft spots. It has high stability, low ductility, good abrasion proof, small deformation and long working life. For mechanical guide rod, column tie bar, linear guide, slide rod, sport equipment, forklift, scraper and so on.