Role of silicon in stainless steel balls: Silicon plays an antioxidant role in steel. Also, its association with other alloys makes steel even more hard-wearing. Small amounts of silicon are added to steel to improve resistance to corrosion. Silicon is commonly added to stainless steel to improve its resistance to oxidisation.

Stainless SteelBowl

Stainless steeltube

Role of molybdenum in stainless steel balls: Molybdenum is used in stainless steel up to a density of 8%, but most often in a range from 2 to 4%. Even at a lower rate, molybdenum ensures a powerful effect in improving the alloy’s strength.

Role of nickel in stainless steel balls: Nickel offers excellent ductility and tensile strength. These properties are maintained at very cold (cryogenic) temperatures. Nickel favours the formation of a homogenous austenitic structure for the stainless steel balls.

Stainless SteelBall Bearings

Specification (stainless steel balls) Hardness Density AISI 420 55/58 Hrc 7.75 AISI 440C 58/64 Hrc 7.75 AISI 302 25/39 Hrc 7.93 AISI 304(L) 25/39 Hrc 7.93 AISI 316(L) 25/39 Hrc 7.98 AISI 904 150/300 HV 8 AISI 430 135/380 HV 7.68

Steelball

Role of titanium: The addition of titanium improves resistance to pitting. Titanium is considered to be a stabiliser in the alloy of stainless steel ball.

Role of niobium in stainless steel balls: In ferrous stainless steels, the addition of niobium is one of the most effective methods for improving an alloy’s thermal resistance. The addition of niobium helps to reduce corrosion for the stainless steel balls, especially in hot areas of use. Therefore, it acts as a stabiliser.

Role of chrome in stainless steel balls: Chrome serves, in particular, to increase the stainless steel ball’s hardness and resistance to wear. Chrome is also recognised for its corrosion resistant properties. Steel containing more than 12% of chrome is considered to be stainless steel.

Role of carbon in stainless steel balls: Manufacturing steel balls requires the presence of carbon. This enables, in particular, the formation of cementite and perlite. The more carbon there is in stainless steel balls, the harder they will be. Furthermore, this factor also influences the resistance of the balls to wear.

stainless steelball 2'' inch

Role of manganese in stainless steel balls : Manganese is often used to replace nickel. Manganese reacts with oxygen and, therefore, acts as an antioxidant. It influences the behaviour of steel and, in particular, its ability to harden.