SF-1S is of oil resistant, acid resistant, alkali resistant and seawater resistant, more over, there is no lead in the PTFE surface layer and so is particularly fit for application in food machinery,alkali flow meters, pumps motion elements in pharmaceuti
| Grade | SF-1S | |
| Material | Stainless steel+copper powder+(PTFE+ filler) | |
| Load capacity | Static load N/mm2 | 250 |
| Dynamic load N/mm2 | 140 | |
| Oscoillation Load N/mm2 | 60 | |
| Max line speed | Dry friction m/s | 2.5 |
| Oil lubrication m/s | >5 | |
| PVvalue limit | Dry friction N/mm 2 · m/s | 1.8 |
| Oil lubrication N/mm 2 · m/s | 3.6 | |
| Friction coefμ | Dry friction | 0.08~0.20 |
| Oil lubrication | 0.02~0.12 | |
| Mating shaft | Hardness HB | >220 |
| Roughness Ra | 0.4~1.25 | |
| Working temperature°C | -200~+280 | |
| Thermal conductivity W/mk | 40 | |
| Coefficient of linear expansion | 11×10 -6/K | |
| Outside surface Plating | 无 | |
It is most suitable for use in food and beverage machinery, chemical pumps and valves with moderate acid-base flow, pharmaceutical machinery, printing and dyeing machinery, chemical machinery, and marine industry corrosion-resistant sliding parts.