Bell factory produce high precision and high polish SS201 SS304 SS316 SS420 SS440C stainless steel ball .
SS201 SS304 SS316 stainless steel ball ,Size from 0.5mm to 60mm .Grade from G100 to G1000 . Hardness is HRC20-25. these balls have best anti-rust and Anti-corrosion resistant, good surface effect, contact with human body. So it’s widely use for medical equipment, skin contact, food grade, electrical appliances, cosmetics, bearing slide, medical equipment, jewelry and many other industries......
SS420 SS440C stainless steel ball ,Size from 0.3mm to 60mm .Grade from G10 to G1000.Hardness is HRC55-66 . these balls have high precision, good corrosion resistance, strong rust and wear resistance.so it’s widely use for Bearings, stamping / hydraulic parts, valves, aerospace, seals, refrigeration equipment, high-precision instruments, etc.
-
![Aerosol Steel Ball]()
Aerosol Steel BallThe aerosol steel ball is a tiny yet crucial precision component. It functions like a "one-way valve switch" controlled by a spring. Through precise opening and closing, it fulfills the two core functions of aerosol products: sealed...view more -
![Solid 440c Steel Ball]()
Solid 440c Steel BallSolid 440C steel ball, as the name suggests, is a spherical object made of 440C stainless steel with no cavity inside. It is usually subjected to precise processing and heat treatment to achieve specific dimensional accuracy, hardness...view more -
![High Hardness Stainless Steel Ball]()
High Hardness Stainless Steel BallHigh-hardness stainless steel balls are an industrial precision component. They combine the corrosion resistance of stainless steel with the high surface hardness and wear resistance obtained through special heat treatment. These steel...view more -
![Precision Stainless Steel Ball]()
Precision Stainless Steel BallPrecision stainless steel balls, usually refer to those manufactured according to strict standards (such as ISO 3290, GB/T 308, etc.) with high precision (dimensions, true roundness, surface finish) and specific mechanical properties....view more -
![Bearing Ball]()
Bearing BallThe rolling elements of a bearing are the most crucial components that enable the bearing to rotate. They are usually high-precision spherical metal balls.view more
Generally speaking, in the market, for bearing balls, 304 and 316 are the... -
![Small Stainless Steel Ball]()
Small Stainless Steel BallA small stainless steel ball, as the name suggests, is a spherical object with a very small diameter, and it is mainly made of stainless steel.view more -
![3.969mm 4mm Nail Polish Agitator Ball]()
3.969mm 4mm Nail Polish Agitator BallThe small steel beads in the nail polish act as an internal "mixing device". This is because the opening of the nail polish bottle is relatively small, and customers tend to purchase the 3.969mm x 4mm size more frequently.view more -
![Nail Polish Agitator Ball]()
Nail Polish Agitator BallThe nail polish mixing ball is a single or several small metal balls (the most common type being 304 stainless steel balls) or glass beads, which are placed inside the nail polish bottle. Its sole function is to assist in mixing the...view more -
![304 Stainless Ball]()
304 Stainless BallThe 304 stainless steel ball is one of the most widely used stainless steel balls, with relatively low cost. It plays an indispensable role in industries such as industry, daily consumer goods, and food processing.view more -
![2mm Bearing Ball]()
2mm Bearing Ball304 stainless steel balls are metal balls made of a widely used general-purpose austenitic stainless steel. They are renowned for their excellent corrosion resistance, good mechanical properties and machinability. The 2mm 304 stainless...view more -
![304 Steel Ball]()
304 Steel Ball304 stainless steel ball ,china Called 06Cr19Ni10,Korea called SUS304,USA called AISI304 balls ,Germany called 1.4301view more
304 steel ball is most comme ball,it have 8 of nickel ,so it have good anti-rust function.
Our factory... -
![Aisi 304 Stainless Steel Ball]()
Aisi 304 Stainless Steel BallAISI 304 Stainless steel ballview more
Size: 0.5mm- 50.8mm
Grade : G100-G1000
Hardness: ≤HRC25
Magnetic:Austenitic steel, non-magnetic
Features: strong rust resistance, good corrosion resistance....
|
Specification |
Hardness |
Density |
Feature |
|
(Stainless steel balls) |
|||
|
AISI 304(L) |
25/39 Hrc |
7.93 |
Corrosion resistance, slightly magnetic, however annealing can makes it non - magnetic |
|
AISI 316(L) |
25/39 Hrc |
7.98 |
Non-magnetic, good corrosion resistance even when exposed to marine atmosphere and sulfuric acid. |
|
AISI 420 |
55/58 Hrc |
7.75 |
Magnetic, Harden-able, fair corrosion resistance |
|
AISI 440C |
58/64 Hrc |
7.75 |
Magnetic, highest hardness, good corrosion resistance |
|
Material |
C |
Si |
Mn |
Ni |
P |
Mo |
Cr |
S |
|
AISI304 |
0.07 max |
1.0 max |
2.0 max |
8.0-10.5 |
0.045 max |
17.0-19.0 |
0.03 max |
|
|
AISI316 |
0.07 max |
1.0 max |
2.0 max |
10.0-14.0 |
0.045 max |
2.00-2.50 |
16.5-18.5 |
0.03 max |
|
AISI420 |
0.40-0.50 |
1.0 max |
1.0 max |
1.0 max |
0.04 max |
12.0-14.0 |
0.03 max |
|
|
AISI440c |
0.95-1.20 |
1.0 max |
1.0 max |
0.60max |
0.04 max |
0.40-0.80 |
16.0-18.0 |
0.03 max |
Production line
Heading
In the first step, heading machines cut wire into short lengths and form it into spherical shapes between dies.
Deflashing
The flash line, a ridge left by the forming dies, is removed as balls roll between heavy,cast iron plates.
Soft Grinding
Similar to deflashing, except that a grinding stone is used to improve precision.
Heat-treating
Steel balls are next carburized and hardened. Heat treatment imparts the desired hardness and case depth.
Descaling
This step removes the residues and by-products from the heat-treating process.
Hard Grinding
Slow, meticulous grinding assures proper sizing and sphericity, with tolerances as closeas ±.0001.
Lapping
Several proprietary lapping processes can bring balls to the requirements of ISO 3290 Grade10 - 48.
Finishing
Proprietary chemical and mechanical processes give the balls their final micro-smoothed finish, for increased wear resistance and product longevity.
We're well-known as one of the leading stainless steel ball manufacturers and suppliers in China. Our products are highly appreciated in both domestic and overseas market. Please rest assured to wholesale custom made stainless steel ball from our factory.
