China Bearing Steel Ball G10-G1000 High Precision 4mm Stainless Steel Balls

Austenitic stainless steel ball
Grade of ball:60 to 1000/ 60 to 1000
Size:2.381mm-12.7mm
Application
Jewelry, high-end cosmetics, medical equipment, bearings, pumps, valves, aerosol, dispenser sprayers, food stuff, paper, chemical, rubber, military industry, special bearings, household sprayers, perfume miniature pumps, medical application valves, aerospace, body jewelry lotion pumps,chemical pump,guide rail, toy accessories, hardware accessories, auto accessories and other corrosion resistance application.
Martensitic stainless steel ball
Grade of ball:10 to 1000
Hardness:HRC 56 to 60/ HRC 48-52
Size:2.381mm-25.4mm
Application
Precision bearings, anti-friction bearings, special valves, special bearings, special pumps, ballpoint pens, conveyor belts, food stuff, medical instruments, quick couplings, recirculating ball bearings, knotting devices, oil refinery devices, fasteners, locking mechanisms, lighters, components and so on.
Chemical composition

Stainless steel ballSteel GradeC(%)Si(%)Mn(%)P(%)S(%)Ni(%)Cr(%)Mo(%)Austenitic
stainless stell ballAISI2010.151.00max5.50~7.50max0.06max0.03max3.05-5.5016~18----AISI3040.07max1.00max2.00max0.045max0.03max8~1017~19----AISI304L0.03max1.00max2.00max0.045max0.03max8~10.516~18----AISI3160.08max1.00max2.00max0.035max0.03max10~1416~182.0~3.0AISI316L0.03max1.00max2.00max0.035max0.03max12~1516~182.0~3.0AISI6650.08-0.1max0.3~0.5max13.5~13.9max0.04max0.02max0.7-0.812-12.3----Martensitic
stainless steel ballAISI4400.90~1.00max0.80max0.8max0.035max0.03max0.6 max17~19----AISI440C0.95~1.10max0.80max0.8max0.035max0.03max0.60max16~180.40~0.70AISI4200.26~0.351.00max1.00max0.035max0.03max0.60max12~140.75maxAISI420C0.36~0.450.60max0.80max0.035max0.03max0.60max12~14----

Production Process
1.Cold heading process
2.Flashing process
3.Heating treatment process
4.Grinding process
5.Initial grinding process
6.Lapping process
7.Eddy current tested by AVIKO
8.Optical testing
Inspection Machines
Profile roughness tester from England
Germany Zeiss cleanliness analysis system
Taylor roundness instrument from England
SKF waviness meter
Germany KB Vivtorinox hardness tester
Finland residual stress analysis
Oxygen nitrogen analyzer from USA
Germany Zeiss metallographic microscope
Steel ball single body vibration measuring instrument
NG Spectrometer spectrometer
Bearing life testing machine
Hydraulic universal testin machine
We produce

ItemNameMaterial1Carbon steel ball (Low)AISI1010,AISI1015,Q195,Q2352Carbon steel ball (High)C80,C82,C853Stainless steel ball(Austenitic)AISI304/304L/316/316L/201/6654Stainless steel ball(Martensitic)AISI420/420C/440/440C5Chrome steel ball(Ferritic)AISIE52100/100Cr6/Gcr15/SUJ-2

Packaging
1. Plastic bag+box+carton+wooden pallet
2. Plastic bag+carton+wooden pallet
3. Export cartons+steel drums+wooden pallets