Gold Member Since 2014
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Changzhou Feige Steel Ball Co., Ltd.

Steel Ball, Steel Shot, Magnetic Ball manufacturer / supplier in China, offering SGS Approved G100 4mm Stainless Steel Ball for Grinding, 2.381mm 3/32′′ Bearing Balls for Cement Plant Forged Steel Ball, AISI52100 Bearing Steel Balls Size 7.5mm G40 and so on.

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Supplier Homepage Product stainless steel balls SGS Approved G100 4mm Stainless Steel Ball for Grinding

SGS Approved G100 4mm Stainless Steel Ball for Grinding

Purchase Qty.:
20-299 300+
FOB Unit Price: US $11.5 US $13
Purchase Qty. (kg) FOB Unit Price
20-299 US $11.5
300+ US $13
Get Latest Price
Production Capacity: 160 Ton/Moth
Transport Package: 10kg for Each Box or Follow The Customers
Payment Terms: L/C, T/T, D/P, Paypal, Money Gram, Western Union

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Basic Info
  • Model NO.: 4mm
  • Certification: ISO9100;2008SGS
  • Universal: Yes
  • Material: Stainless Steel
  • Percision: G100
  • Brand: Saige
  • Checking: 100% Sorted
  • Sample: by Free
  • Safe: RoHS
  • Specification: ROHS
  • HS Code: 84829100
  • Customized: Customized
  • Standard Parts: Yes
  • Type: Steel Ball
  • Product: SGS Approved G100 4mm Stainless Steel Ball for Gri
  • Hardness: HRC>52
  • Surface: Zero Defect , Bright
  • Sales Mode: Wholesale
  • Package: Four Small Boxes Within a Carton of 20kg
  • Trademark: SAIGE
  • Origin: Jiangsu, Changzhou
Product Description

ProductSGS Approved G100 4mm Stainless Steel Ball for Grinding
Materialstainless steel
Surfacezero defect, bright
Checking100% sorted
Sales modewholesale or retail
Sampleby free
Packagefour small boxes within a carton of 20kg

Material  StandardChemical CompositionHardness
JIS (SUS440)
(DIN X105 CrNiMo17)


A, The strict process of stainless steel ball
Raw material--Wire drawing--Cold heading--Flashing--Heat treament--Grinding--Lapping 1--Lapping2--Lapping3--Washing-Checking.
All balls must be passed the procedure of passivation. Each procedure have professional inspector. They will check steel balls each two hours to be sure correct diameter and good surface.

B, The package of stainless steel ball
Step 1: Weighing stainless steel balls. Usually the weight is about 10kg.
Step 2: Sealed plastic bags
Step 3: Put sealed plastic bags into small boxes.
Step 4: Each box has the label, including material, Lot No. Size, quantity, grade, date and so on
Step 5: Each box directly put into mooden case.
High precision stainless steel balls usually is oil package. Normal precision stainless steel balls usually is dry package.
We also can pack them according to customers' request.

C, Sample Free
If you are interested in our product , we can send you our free sample for you . Please contact us as soon as possible.


Expect the stainless steel ball , we have other steel balls . chrome steel ball , carbon steel ball .
They are all passed the ISO and SGS certification . They are all safe.
chrome steel ballbearing , screw
carbon steel ballbicycle bearing , slide
stainless steel ballAISI304/AISI304Cnail polish,chemical product , sex toy
AISI316/AISI316Llock core , iron
AISI420/AISI420Cfirdge slide , bearing
AISI440/AISI440cbearing , grinding

high precision(G10) chrome steel balls widely used in bearings.
normal precision(G100) chrome steel balls widely used in grinding, bicycles.
304/316 stainless steel balls(G100) widely used in decoration, sex toys, electric iron and any other house machines.
420/440 high precision stainless steel balls(G10) widely used in bearings
Carbon steel ball (G100) widely used in slide , (G1000) widely used in bicycle bearing .


Feige steel ball founed in 1989, has more than 20 years experience in manufacturing steel ball.
Now we owns workshop area about 13500 square meters and invest equipments about 15 million RMB.
Our main product are stainless steel ball, chrome steel ball and carbon steel ball.
The whole annual sales is about 28 million.
Before 2000, we have got the certification: ISO 9001: 2008 SGS.
We have the whole production process from raw material to producing to package.
We have strong production capacityabout 160 Ton steel balls for each Month.
Welcome to our factory. It is about 2.5 hours from Shanghai to our Changzhou factory.


1,Can you provide sample free?
   Yes ,we can provide free samples with in 0.5kg.
2,What kind of payment terms you can accept?
   We can accept T/T,L/C, Western Union and Paypal.
3,What about your steel ball's quality?
   Checking in the whole manufacturing process &100% inspection before  shipment ensure the quality of   our products.
4,What's your packing method?
   A) Inner packing: Dry packing or oil packing are provided according to you needs.
    B) Outer packing:
                   1)volatile rust preventive paper + poly bag + iron drum + wooden / iron pallet.
                   2)25kg poly bag + carton + wooden pallet or wooden box.
                   3)customized packing.
5,What's your delivery time?
   Within 3-30 days according to your required size and quantity.
6,Is your steel ball competitive?
   Yes, We are steel ball manufacture more than 20 years.

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