Clean means there is no presence of oil or water. The packaging is neat and the surface of the steel ball is free from any oil or water, making it super clean. |
The steel balls are crafted precisely through a meticulous technical process, resulting in a uniform size and flawless finish. The size error is minimal, with a maximum deviation of only +0.2mm. |
The steel balls undergo a final polishing process that ensures ultra-fine polishing, giving each particle an ultra-high brightness. |
We take pride in sending out every parcel with high-quality products and ensure that they meet our standards. If you have any queries or concerns regarding the quality of our products, please do not hesitate to contact us. |
MATERIAL | AISI 304/304L/316/316L 420/420C/440/440C STAINLESS STEEL |
FEATURES | (a) Good resistance to corrosion (b) Apply in where material toughness and resistance to corrosion are more important than hardness (c) Good corrosion resistance in the food environment, oxidizing solutions and most organic chemicals |
DIAMETER | 0.8mm-180mm |
GRADE | G10-G1000 |
HARDNESS | 25-67HRC |
Material | min./max. | C% | Si% | Mn% | Cr% | Ni% | P% | S% | N% |
304 | min. | --- | --- | --- | 17 | 8 | --- | --- | --- |
max. | 0.07 | 1 | 2 | 19.5 | 10.5 | 0.045 | 0.015 | 0.11 | |
304L | min. | --- | --- | --- | 18 | 10 | --- | --- | --- |
max. | 0.03 | 1 | 2 | 20 | 12 | 0.045 | 0.015 | 0.11 | |
316 | min. | --- | --- | --- | 16.5 | 10 | --- | --- | --- |
max. | 0.07 | 1 | 2 | 18.5 | 13 | 0.045 | 0.015 | 0.11 | |
316L | min. | --- | --- | --- | 16.5 | 10 | --- | --- | --- |
max. | 0.03 | 1 | 2 | 18.5 | 13 | 0.045 | 0.015 | 0.11 | |
420 | min. | 0.43 | --- | --- | 12.5 | --- | --- | --- | --- |
max. | 0.5 | 1 | 1 | 14.5 | --- | 0.04 | 0.015 | --- | |
420C | min. | 0.43 | --- | --- | 12.5 | --- | --- | --- | --- |
max. | 0.5 | 1 | 1 | 14.5 | --- | 0.04 | 0.015 | --- | |
440 | min. | 0.9 | --- | --- | 16 | 0.4 | --- | --- | --- |
max. | 1 | 0.8 | 0.8 | 18 | 0.8 | 0.04 | 0.015 | --- | |
440C | min. | 0.95 | --- | --- | 16 | 0.4 | --- | --- | --- |
max. | 1.2 | 0.8 | 0.8 | 18 | 0.8 | 0.04 | 0.015 | --- |
Grade: G10 to G1000 | |||||
Grade | ball diameter | spherical | surface | lot diameter | nomainal ball |
variation | deviation | roughness | variation | deviation tolerance | |
Vdws | Sph | Ra | Vdwl | Tdn | |
not over | |||||
μm | |||||
10 | 0.25 | 0.25 | 0.02 | 0.5 | * |
16 | 0.4 | 0.4 | 0.025 | 0.8 | * |
20 | 0.5 | 0.5 | 0.032 | 1 | * |
24 | 0.6 | 0.6 | 0.04 | 1.2 | * |
28 | 0.7 | 0.7 | 0.05 | 1.4 | * |
40 | 1 | 1 | 0.06 | 2 | * |
60 | 1.5 | 1.5 | 0.08 | 3 | * |
100 | 2.5 | 2.5 | 0.1 | 5 | ±12.5 |
200 | 5 | 5 | 0.15 | 10 | ±25 |
500 | 12.5 | 12.5 | * | 25 | ±50 |
1000 | 25 | 25 | * | 50 | ±125 |