Chrome Steel Balls
( AISI 52100, En31, SUJ2, 100Cr6, 100C6 )
High Carbon High Chrome, Bearing Steel, Chrome Alloy Steel Ball

HIGH CARBON HIGH CHROME STEEL BALLSCHROME ALLOY STEEL BALLS
 CHROME STEEL BALLS AND STEEL POLISHING MEDIA EXPORTERTechnocon Engineers, India  >>

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Chrome steel ball, or high carbon high chrome steel balls, is actually an alloy steel ball which owes its enhanced properties to the presence of larger proportions of special alloying elements such as chromium, manganese and silicon than are ordinarily present in carbon steel.

Technocon Engineers offers a wide range of forged chrome steel balls.

Steel Material: Chrome alloy steel; AISI 52100, EN-31,SUJ-2, 100Cr6, 100C6, DIN 5401.  Details...

Sizes (Diameters): 2 mm to 12.7 mm and
                               5/64" to 1/2" diameter. Details...

Grades (Tolerances): AFBMA100 to 2000.
Fine grade to grinding media grade.
Details...

Production sequence of chromesteel ball.

Advantages of Technocon's chrome alloy steelballs.
 
Applications of chrome steel balls.

S
ome common uses of chrome steel balls are as:

Vibratory polishing, burnishing steel media;Details..

Ball bearings in bicycles;                           Details...

Ball mill media, grinding steel balls and     
G
rinding media for cocoa, chocolate liquor Details...
                             
A
gitators in paint spray cans, In plating bath of zinc and lead, Casters,
Drawer Slides, Door Locks.  Details...
  CHROME ALLOY STEEL BALLS, AISI 52100, EN 31, SUJ 2.
High Carbon High Chrome Balls,
Chrome
Steel, Bearing Steel Balls.
AISI 52100, EN 31, SUJ 2, 100Cr6, 100C6.
DIN 5401, Class II to VI.
 
  
Properties of Chrome Steel Balls

Corrosion Resistance:
Stainless Steel
> Chrome Alloy Steel > High Carbon Steel.

Hardenability: The above stainless steel are  hardenable by heat treatment upto the core. These are generally through hardened upto 58-63 HRC (Rockwell C).

Magnetism: These are fully magnetic.

Passivation: Chrome steel balls are prone to atmospheric oxidation and rusting in corrosive or humid environment.
These are protected by rust preventive oils. Hence, oil free balls in chrome steel are not offered.
 

Chrome Steel Balls Vs
                                      Carbon Steel Balls


For better performance and life in most of the above applications chrome steel balls instead of ordinary carbon steel  ball (round / spherical) are preferred.

These steel balls have better corrosion resistance, hardenability and toughness.

The chrome alloy steel balls can be thorough hardened (upto the core) to 58-63 HRc (Rockwell C) instead of just case hardened or carburized.
Material Composition of Chrome Alloy Hardened Steel Ball
(High Carbon High Chrome Steel, Bearing Steel - Thorough Hardened)
 Carbon
C
Manganese
Mn
Silicon
Si
Phosphorus
P
Sulphur
S
Nickel
Ni
Chromium
Cr
Hardness
Rockwell C
EN 310.90-1.101.10 max0.10-0.350.05 max0.05 maxNil1.00-1.5058-63 HRc
AISI
52100
0.95-1.100.20-0.500.35 max0.025 max0.025 maxNil1.30-1.6058-63 HRc


SUJ-2, 100Cr6, 100C6, DIN 5401 chrome alloy steel has similar material composition as given above.
Rust preventive oil: Applied on chrome steel balls to save from rusting and corrosion.
Packing: Done in numbers, pieces or by weight. VCI paper or bags are used wherever necessary.

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

Effects of Alloying Elements in Chrome 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 chrome steel include chromium, manganese and silicon.

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.

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.

Silicon

Silicon is used as a deoxidizer in 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.
 
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CHROME STEEL BALLS AND STEEL POLISHING MEDIA EXPORTERTechnocon Engineers, India

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