Stainless Steel Balls, Inox Steel Ball
 AISI 304, 316, 302, 304L, 316L, 420
STAINLESS STEEL BALLSINOX STEEL BALLS   STEEL BALLS AND BURNISHING MEDIA EXPORTERTechnocon Engineers, India >>
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Stainless Steel Balls, also called Inox Steel Ball, is manufactured of steel that
contains more than 12% chromium, with or without other alloying elements.
Stainless steel resists corrosion, maintains its strength at high temperatures and is easy to maintain.
 
Technocon Engineers manufacture a wide range of stainless steel balls.

■ Steel Material: Stainless Steel AISI 304, 304L, 316, 316L, 302, 420.   Details...

■ Sizes (Diameters): 1 mm to 12.7 mm and
                                3/64" to 1/2" diameter.  Details...

■ Grades AFBMA (Tolerances): 100 to 2000. Details...
■ Production sequence of stainless steel ball.

■ Advantages of Technocon's stainless steel balls.		 Applications of stainless steel balls.

Some common uses of stainless steel balls are as:

Vibratory polishing, tumbling, burnishing media; Details..

Valves for dispenser spray, detergent pumps;   Details...

Grinding media for cocoa, chocolate liquor;      Details... 

Ball mill media;      Details...                                       

Agitators in personal care products like nail polish,
In machine bearings, Automobile sub assemblies,
In drawer slides, Basket / sink waste, Coffee maker,
Plating bath, Decorative uses.     Details...
 
  Inox Steel Balls, Stainless Steel Balls, AISI 304 Steel Balls, AISI 316 Steel Balls, AISI 302 Steel Balls, AISI 430 Steel Balls, AISI 316L Steel Balls
Stainless Steel Balls (Inox)
AISI 304, 316, 302, 304L, 316L, 420
 		  
 
The most common grades of stainless steel balls are:
AISI / SAE / SUS 304. The most commonly specified austenitic (chromium-nickel stainless class) stainless steel, which accounts for more than half of the stainless steel produced in the world. This grade withstands ordinary corrosion, is durable and resists most chemicals.
AISI / SAE / SUS 316. Austenitic (chromium-nickel stainless class) stainless steel containing 2%-3% molybdenum (whereas 304 has none). The inclusion of molybdenum gives 316 greater resistance to various forms of deterioration.
AISI / SAE / SUS  302. Has almost the same chemical composition as 304 with slightly more carbon content and less chromium. Corrosion resistance is less than 304.
AISI 420. This is a chrome-alloyed heat treatable steel with medium carbon content. 420 is a martensitic stainless steel with 12% Chromium which is sufficient to give good corrosive resistance properties. Its best corrosive resistance is when hardened and surface is ground or polished.
Properties

 ● Corrosion Resistance: AISI 316 > 304 > 302 > 420.

● Hardenability: The above stainless steel are not hardenable by heat treatment. Some work-hardening takes place on balls during cold-forging.

● Magnetism: AISI 304 and aisi 302 are slightly magnetic and AISI 316 is non magnetic. However, in the manufacture of steel balls and media during cold forging / heading, slight magnetism is induced in all the stainless steel types.

● Passivation: The stainless steel balls are passivated after final polish. Carryover iron and other contaminants are removed and a surface film prevents atmospheric and water corrosion.

Austenitic Stainless Steel Balls

The largest category of stainless steel, accounting for about 70% of all production.

The austenitic class offers the most resistance to corrosion in the stainless group because of its substantial nickel content (8%) and higher levels of chromium(18%).

Austenitic stainless steels are hardened and strengthened through cold working (changing the structure and shape of steel by applying stress at low temperature); they are unhardenable by heat treatment.

Ductility (ability to change shape without fracture) is exceptional for the austenitic stainless steels. 
 

Material Composition of Inox, Stainless Steel Balls (Round or Sphere)
  Carbon
C 		Manganese
Mn		 Silicon
Si		 Phosphorus
P		 Sulphur
S		 Nickel
Ni		 Chromium
Cr		 Molybdenum
Mo
AISI 302 0.15 max 2.00 max 1.00 max 0.045 max 0.03 max 8.0-10.0 17-19 Nil
AISI 304
 		 0.08 max 2.00 max 1.00 max 0.045 max 0.03 max 8.0 -10.5 18-20 Nil
AISI 304L
 		 0.03 max 2.00 max 1.00 max 0.045 max 0.03 max 8.0 -10.5 18-20 Nil
AISI 316
 		 0.08 max 2.00 max 1.00 max 0.045 max 0.03 max 10-14 16-18 2-3
AISI 316L
 		 0.03 max 2.00 max 1.00 max 0.045 max 0.03 max 10-14 16-18 2-3
AISI 420 0.15 min 1.00 max 1.00 max 0.040 max 0.03 max Nil 12-14 Nil
 
Effects of Alloying Elements in Stainless Steel Balls

 Alloying Element: Any metallic element added during the making of steel for the purpose of increasing corrosion resistance, hardness or strength. The metals used most commonly as alloying elements in stainless steel include chromium, nickel and molybdenum.

The Basics
Steel is a combination of iron and carbon. In its softened state, the base is a matrix composed of simple iron molecules (ferrite), in which are suspended molecules of iron carbide (cementite). When steel is heated to prescribed temperatures, then cooled at a specific rate, it undergoes physical internal changes which manifest themselves in the form of various micro-structures such as pearlite, bainite, and martensite. These micro-structures (and others) provide a wide range of mechanical properties, making steel an extremely versatile metal.

Carbon
The presence of carbon in iron is necessary to make steel. Carbon is essential to the formation of cementite (as well as other carbides), and to the formation of pearlite, spheroidite, bainite, and iron-carbon martensite. The hardness of steel (or more accurately, the hardenability) is increased by the addition of more carbon, up to about 0.65 percent. Wear resistance can be increased in amounts up to about 1.5 percent. Beyond this amount, increases of carbon reduce toughness and increase brittleness.

Silicon
Silicon is used as a deoxidizer in the manufacture of steel. It slightly increases the strength of ferrite, and when used in conjunction with other alloys can help increase the toughness and hardness penetration of steel.

Manganese
Manganese slightly increases the strength of ferrite, and also increases the hardness penetration of steel.

Chromium
Chromium (Cr) has a tendency to increase hardness penetration. Chromium can also increase the toughness and wear resistance of steel. Probably one of the most well known effects of chromium on steel is the tendency to resist staining and corrosion. Steels with 12% or more chromium are referred to as stainless steels.

Nickel
Nickel (Ni) increases the strength of ferrite and hence of steel. It is used in low alloy steels to increase toughness and hardenability. Nickel also tends to help reduce distortion and cracking during the quenching phase of heat treatment. Nickel provides high degrees of ductility as well as resistance to corrosion.

Molybdenum
Increases the hardness penetration and high temperature tensile strength. In the presence of chromium enhances the corrosion resistance of stainless steel.

For Spherical Stainless Steel Balls Technical Data;
Weight per 1000 pieces for various diameters, click here.
 

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