g10 precision 0.5mm small solid aisi420 stainless steel ball for pen
Availability: In Stock
Introduce:High tensile strength Anti-corrosion High temperature resistence High quality
Min.Order Quantity: 1 Ton
Payment Terms: L/C,T/T,Western Union
| Grade | Ball diameter variation | Spherical deviation | Course surface roughness | Basic diameter tolerance | Batch diameter variation |
| Vdws | △Sph | Ra | Vdwl | Tdn | |
| No more than | |||||
| um | |||||
| 10 | 0.25 | 0.25 | 0.025 | 0.5 | * |
| 16 | 0.4 | 0.4 | 0.032 | 0.8 | * |
| 20 | 0.5 | 0.5 | 0.04 | 1 | * |
| 100 | 2.5 | 2.5 | 0.125 | 5 | -12.5 |
| 200 | 5 | 5 | 0.2 | 10 | -25 |
| 500 | 13 | 13 | * | 25 | -50 |
| 1000 | 25 | 25 | * | 50 | -125 |
