8653-86303611
North of Qiaonan Village, Gangcheng Town, Ningyang Country, China((Industrial Area)), Tai′an, Shandong, China
china strong anti-rust and corrosion resistance of stainless steel ball(AISI304/316/302/420/440C)
Stainless steel balls have similar mechanical properties as chrome steel balls with the advantage of being resistant to corrosive environments. There are several types of stainless steel balls, ranging from the 440C type which offers the greatest hardness and surface finish to the 302 which has extreme toughness and corrosion resistance.
As one of the leading manufacturers of steel balls with 25 years' experience, we are in the position to supply steel balls with good quality and reasonable price.
Product Attribute:
Material: AISI304 AISI316 AISI420C AISI440C
Size: 0.8mm-150mm
Grade: G10 to G1000
Hardness: AISI304 and AISI316 are soft materials. For AISI420C after heat-treatment, the hardness is between HRC54-60. For AISI440C is HRC58-62
Certificate: IS9001:2008
Material Composition %
Material | C | Si | Mn | P | S | Ni | Cr | Mo |
AISI304 | 0.07 max | 1.0 max | 2.0 max | 0.045 max | 0.03 max | 8.0-10.5 | 17.0-19.0 | |
AISI316 | 0.07 max | 1.0 max | 2.0 max | 0.045 max | 0.03 max | 10.0-14.0 | 16.5-18.5 | 2.00-2.50 |
AISI420C | 0.40-0.50 | 1.0 max | 1.0 max | 0.04 max | 0.03 max | 1.0 max | 12.0-14.0 | |
AISI440C | 0.95-1.20 | 1.0 max | 1.0 max | 0.04 max | 0.03 max | 0.60 max | 16.0-18.0 | 0.40-0.80 |
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:
Carbon 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.
Our factory already get ISO and our products already passed SGS,FDA,ROHS certificate as below :
Ningyang Xinxin Stainless Steel Ball Manufacture Co., Ltd is one of famous and professional stainless steel ball factory from china .
We have two professional factory to produce steel ball ,one is in Shandong province(5000 square meters),other one is in Henan province (10000 square meters ) .
With over 20years history,our factory have good reputation from our customers and government,so our factory passed ISO9001:2008 and our products got SGS,RHOS Certificates .
We mainly produce stainless steel ball (201, 304, 316, 420,420C,440C,430). also produce chrome steel ball (AISI52100,100CR6,GCR15),carbon steel ball(1015,1010,1045,1085), copper brass balls, plastic ball,glass ball,Tungsten carbide ball, flying saucer ball, polishing media ball,ceramic ball,Aluminum ball and other kinds of material ball.
We have the ability to provide many kinds of steel ball, of which accuracy range is G10-G1000,size 0.4mm-50.8mm. The brand "XinXin" is trusted deeply by customers. Our products have been widely applied in the hardware goods form a complete set for the aviation and spaceflight industry, automobiles, sprayers, stainless steel bearings, and handicraft and precision instruments.
We have advanced production equipment and consummative instruments. We use perfect equipment to detect the roundness, libration size and the quality of the surface of steel balls.
Welcome to visit our factory and looking forwarder to cooperate with you !
Glass ball ,plastic ball ,Ballcone ,Brass ball,Ceramic ball
Package type : a, Steel drum packing
1) 250 kg per steel drum
2) 4 drums on one pallet
3) Drum with pallet size: 75*75*65cm
b, Carton package
1) 25 kg per carton , 36 cartons on one pallet
2) Carton size: 30*20*15
1. Ball chose by people
2. Ball select by machine
3. Ball test by Vernier calipe
4. check ball surface by magnifying glass
5. Ball test by three needle gauge
6. Ball test hardness by hardness tester
