Specifications
4mm milling steel balls1)Diameter/Size: 20-150mm
2)Grade: G1000, G2000
3)Hardness: 58-68HRC
4)Material: bearing steel ball
4mm milling steel balls
| Item | Grinding media ,Grinding ball ,Grinding steel ball, Forged steel ball |
| Category | grinding meidia |
| Material | low carbon steel AISI 1008-1015 |
| Size | 0.8mm,2.0mm,3.175mm.5.0mm,6.35mm,8.0mm |
| Grade | G1000 g2000 |
| Hardness ( HRC) | HRC55-58 |
| Application | grinding media,Grinding powder, |
| Matched Standard | JIS, ASME |
| Certification | ISO SGS |
| Packing | Oily packing in pouch packing,plastic/tin box packing1, 25kg/carton with steel pallet packing 2,25kg/carton without steel pallet packing 3,10kg/box then in wooden case packing 4,250kg/ steel drum packing or according to customers' requirement |
| Place of original | Shandong province, China |
| Delivery | Within 30 days or confirmed while placing order |
Producing line:
Heading: In the first step, heading machines cut wire coils 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 close as ±.0001".
Lapping: Several proprietary lapping processes can bring balls to the requirements of ISO 3290 Grade 10 - 48.
Finishing: Proprietary chemical and mechanical processes give the balls their final micro-smoothed finish, for increased wear resistance and product longevity.
Inspection: All products pass through at least two 100% inspection stages, using proprietary, automated inspection processes.
Facilities :
Packing :
FAQ:
1.How to trust your quality ?
- Before making the first order
supply the frees sample for your test , and all products will be according to the international standard .
-During making the order
If inspecting every item is ok before shipping
-After making the order
own best after-selling service , return to the 100% payment upon finding the problem of quality .
2.How many is the MOQ?
-1 T or according to the clients' request
3.what's kind of the payment and shipping ?
-TT 30% payment in advance ,the rest of 60% payment will been paid before the shipment
-30% TT and 60% L/C
-100% L/C
-according to the clients' request
- international express: such as dhl fedex tnt ups ems
-by sea or by air
-as to your request
4.Do you have own factory ?
Yes , our factory built since 1980 year , and our specilized engineer have more than 10 year experience .
5.what's mainly ball do you producing ?
-carbon steel ball with material aisi1008 aisi1010 aisi1015 aisi1065 aisi1085 (0.5mm-25.4mm)
-chrome steel ball with material aisi 52100 (gcr15)
-stainless steel ball with material aisi201 aisi304 aisi316l aisi420 aisi440c
-brass ball with nickel , gold , silver , plated
-steel shot with material S70,S110,S170,S230,S280,S330,S390,S460,S550,S660,S780
Certificate :