440 Stainless Steel Balls

About

AISI 440 Stainless steel AISI 440 offers the advantage of higher through hardness than other stainless steel material, as well as a considerable resistance to corrosion against water, steam, oil, gasoline and alcohol. The high hardness, grade of surface finish, and extremely accurate tolerances ensure that this type of steel is suitable material for stainless steel precision ball bearing, oil refinery valves, ball-point pens and other rigid environmental applications. International equivalents: DINX105 CR Mo17 - JIS SUS 440C - Z100CD17 - Wks 1.4125 Size range: 0.635mm (0.025 inch) - 101.6mm (4 inch) Standard grade available: 10 - 16 - 20 - 28 - 40 - 100 - 200 - 500 - 1000 Hardness: HRC 57 - 60