Mirror-Like Finish 440c Stainless Steel Sphere

 PRODUCT DETAILS
 
PACKAGE OF STAINLESS STEEL BALL
1, Put 6.5kg of steel balls into each plastics bag and a small box.
2, Put four small boxes into a carton.
4, Cartons with the label that showing the diameter, precision, material, quantity, lot number and date.
5, At last, put the cartons into wooden case, the size of wooden case will depending your order quantities.
 


 
STRICT PRODUCTION PROCESS
A. Raw material--Wire drawing--Cold heading--Flashing--Heat treatment--Grinding--Lapping 1--Lapping2--Lapping3--Washing--Checking.
All balls must be passed the procedure of passivity. Each procedure have professional inspector. They will check steel balls each two hours to insure the correction diameter and good surface of SAIGE steel ball.
 
B. Our high precision bearing steel balls is G10. (Diameter variation is in 0.25um)
Following is our inspection standard of G10 steel balls:
1. Each size of chrome steel balls have their own standard balls which are imported from Japan.
2. These standard balls were stocked into antirust oil at the temperature 20° C.
3. Our size measurement instrument's precision is up to 0.1um. Also import from Japan.
4. We will check the diameter, hardness, surface, deviation from spherical, vibration value and so on.
 
 
FEIGE STEEL BALL CAMPANY AND ADVANTAGES.
1. Feige steel ball founded in1989, has more than 20 years experience in manufacturing steel ball.
2. Now we owns workshop area about 20000 square meters and invest equipments about 15 million RMB.
3. Our main products are stainless steel ball, chrome steel ball and carbon steel ball.
4. The whole annual sales volume is about 28 million.
5. Before 2000, we have got the certification: ISO 9001: 2008 SGS.
6. We have the whole production process from raw material to producing to package.
7. We have strong production capacity: about 160 Ton steel balls for each Month
 
 
FAQ
What's your MOQ?
Our company MOQ is 1pcs.
How can I place an order?
You can email us about your requirement.
Any inquiry will be replied in 24hours.
Could you accept OEM and customize?
YES, we can customize for you according to your samples or drawing.
Could you supply samples for free?
Yes, we san supply samples for free if customer afford the freight.
Does your factory have SGS?
Yes, we have SGS and ISO.
Are you factory or manufacturer?
Yes, our factory was built in 1989.
What time the guarantee of your bearing quality guarantee period?
One year! Customer need supply photos and send bearing back.
Could you supply door to door service?
Yes, by air express ( DHL, FEDEX, TNT, EMS, SF 7-10 days to your city).



THE DIFFERENCE OF AISI 304, AISI 316, AISI 316L, AISI 420, AISI 420C, AISI 440,
Stainless steel (AISI 304)
AISI 440C.AISI 304 steel balls have no good hardness but offer good corrosion resistance, they offer good resistance to atomospheric corrosion, dyes, food processing, valves, sex products and so on.
AISI 304 stainless steel ball in our factory :
Minimum diameter: 2mm
Best precision :G100
Hardness :HRc25-39
 
Stainless steel (AISI 316)
AISI 316 steel balls have no good hardness, but have better corrosion resistance than AISI 304, AISI 316 stainless steel balls offer good corrosion resistance to sulphuric acid compounds. They are used in nail polish, trigger sprayers, dispenser valves, body jewelry and so on.
AISI 316 stainless steel balls in our factory:
Minimum diameter :2mm
Best precision :G100
Hardness :HRc25-39
 
Stainless steel (AISI 316L)
AISI 316L  type stainless steel ball has lower carbon content than AISI 316 material, which offers ever higher corrosion resistance, also gives excellent resistance to sulphuric acid compounds. Usually used in valves, jewelry and medical uses.
AISI 316L steel ball in our factory:
Minimum diameter :2mm
Best precision :G100
Hardness :HRc25-39
 
Stainless stel (AISI 420)
AISI 420 have good hardness and fair-to-good corrosion resistance and strength, it is generally used for all applications requiring resistance to corrosion such as bearings, valves, writting instruments, food environment, fresh water, many petroleum products and mild acid environments. AISI 420 is also magnetic.
AISI 420 stainless steel balls in our factory:
Minimum diameter :1.2mm
Best precision :G10
Hardness :HRc52
 
Stainless steel (AISI 420C)
AISI type stainless steel balls have the advantage of maximum hardness combined with corrosion resisting properties, 420C balls have a slightly higher hardness range than 420. Its fine surface finish, also makes them especiall useful in bearings and valves and other severe environment applications.
AISI 420c stainless steel balls in our factory:
Minimum diameter: 1.2mm
Best precision: G10
Hardness: HRc52
 
Stainless steel (AISI 440)
AISI 440 type stainless steel balls are used extensively in steel ball bearing that require hardness, dimensional stability, corrosion resistance and toughness. 440 ball are resistant to corrosion from fresh water, steam, crude oil, gasoline, perspiration, alcohol, blood and food stuffs. Maximum resistance to corrosion and tarnishing is only achieved when 440 balls are fully hardened and surface are polished to a high luster. 440 balls are also magnetic.
AISI 440 stainless steel balls in our factory:
Minimum diameter: 1.2mm
Best precision: G10
Hardness: HRc60-67
 
 Stainless steel (AISI 440C)
AISI 440C steel balls offer the maxmum in strength and fair corrosion resistance among stainless material, they also have good hardness, so 440C steel balls usually used in bearings, valves and so on.
AISI 440C stainless steel balls in our factory:
Minimum diameter: 1.2mm
Best precision:G10
Hardness:HRc60-67