52100 Ball Bearing Steel Bar
52100 Ball Bearing Steel Bar Standards:ASTM A29/ASTM A 295 Steel mill:BAOSTEEL/Dongbei Special Steel Size: Round bar (Diameter): 0.50mm to 800mm Square bar / Flat bar: 3mm to 800mm Surface treatment:Brightness, black Heat treatment: 850 ~ 860℃ quenching, oil cold; Tempering at 160℃ for 2h. AISI E52100- Ball bearing steel is a kind of high-carbon high…