High quality 4mm tungsten carbide ball for bearing industry
Features of 4mm tungsten carbide ball
1.For sealing of valves of oil pumps in petroleum industry's sand containing wells,
viscous oil wells, sea oil wells, high pressure sulfur resistant oil wells, compatible
Cemented Carbide valve seats, etc.
2.Various grades for cemented carbide balls/pellets can be supplied according to
customer's drawings.
3.The surface finish, tolerance class and tolerances of dimensions have respectively reached the standards of the machine industry.
Application:
Tungsten carbide ball was widely used in precision tools drawing and punching,high precision bearings,high precision measuring instrument and appratus,water pump and brake pump,and various machinery sealing accessories part in high-tech industry.
Diameter:
Dia. 2, 5, 7, 8, 10, 12mm (or 5/8, 3/4, 15/16, 1-1/8, 1-1/4, 1-3/8, 1-1/16, 2-1/4") and more.
Specification: The size of range is available from 3/32" to 2" inches, the tolerance grade is divided into G10, G25, G48, G50, G100 and so on. The available grades and sizes are shown in the below table.
Grade:
Grade |
Binder content |
Hardness (HRA) |
Density (g/cm3) |
T.R.S (MPa) |
Description |
YG6 |
6%Co |
91 |
14.6-15.0 |
1600 |
The highest wear resistance make this an excellent general purpose grade for use in pumps and valve |
YG8 |
8%Co |
89 |
14.4-14.8 |
1800 |
With better shock resistance than YG6, This grade is typically used as a mining grade where thoughness and abrasion resistance are also important .it has also proven useful in bearing applications |
YG6x |
6%Co |
92 |
14.6-15 |
1850 |
Sub-micro alloy, high hardness and wear resistance than YG6, little lower toughness than YG8, Used in parts where high wear resistance and high toughness are required. |
YG13 |
13%Co |
90.5 |
14.1-14.5 |
1950 |
high toughness and hardness grade. |
YN6 |
6%Ni |
90 |
14.5-14.9 |
1450 |
The highest hardness and wear resistance and corrosion resistance. Used in parts where corrosive condition in high temperature are required. |
YN8 |
8%Ni |
88 |
14.4-14.8 |
1650 |
With higher hardness and wear resistance. Used in parts where shock resistance and corrosion are required. |
YN9 |
9%Ni |
88 |
14.4-14.8 |
1900 |
With higher hardness and wear resistance. Used in parts where shock resistance and corrosion are required. |
YN12 |
12%Ni |
86 |
14.0-14.4 |
1800 |
Higher toughness for impact load. Used in parts where better shcok and impact are required. |
Free smaple was available!
Picture of 4mm tungsten carbide ball :