... : AISI304,316,420C,440CSize: 0.8mm-150mmGrade: G10-G1000Hardness: AISI304 and AISI316 are soft materials. For AISI420C after heat-treatment, the ... being used in rolling element bearings, valve seats, casters, ball bearings and valve parts.420C is a martensitic stainless steel with 12 ... ,G16,G14,G12,G10Any further Information,Plz contact us! 8mm High Quality Stainless steel ball