Specifications
1) Materials: GB9Cr18Mo, AISI440C, SUS440C, DIN X105CrMo17
2) Precision grades: G10-G60
3) Diameters: 2mm - 70mm
4) Standards: ISO9001:2008
We are the most professional stainless steel balls manufacturer in China
We have been the largest stainless chrome steel balls l factory in Northeast of China.
1 ) Material Comparison List
CHINA | USA | JAPAN | GERMANY |
GB | AISI | JIS | DIN |
9Cr18Mo | 440C | SUS440C | X105CrMo17 |
2) Products information
NAME | stainless steel balls |
Diameters | 2mm-70mm |
Materials | GB9Cr18Mo, AISI440C, SUS440C, DIN X105CrMo17 |
Precision grades: | AFBMA STANDARD 10-2001-USA G10-G60 |
average through hardness index | HRC 58-65 |
Mechanical properties: | |
critical tensile strenght | 200 kgf/mm2 |
compression strenght | 193.2 kgf/mm2 |
modulus of elasticity | 20.397 kgf/mm2 |
specific weight | 7.70 kgf/mm2 |
Application | this kind of magnetic material offers the advantage of higher through hardness than other stainless steel materials, as well as a considerable resistance to corrosion against water, steam, oil, gasoline(petrol) and alcohol. |
Quality Standard | ISO9001:2008 |
Characteristics and advantages
| all balls are passivated the high hardness, grade of surface finish, and extremely accurate tolerances ensure that this type of steel is suitable material for stainless steel precision ball bearings, oil refinery valves,ball-point pens and other rigid environmental applications. |
3) Chemical composition
MATERIAL | C | Si | Mn | P | S | Cr | Mo |
AISI440C | 0.95-1.20 | ≤1.00 | ≤1.00 | ≤0.04 | ≤0.02 | 16.00-18.00 | 0.40-0.80 |
4)process
Our plant
Grinding and lapping machines from Japan
Grinding and lapping machines
Work shop
Heading balls
Flashing balls
Balls after heat treatment
Grinding balls
Lapping balls
Selecting machines
Inspection equipment
