Anti Seize & Thread Galling Prevention Coatings for Metal
Galling or cold welding is a form of wear caused by sliding surfaces seizing together and is a common problem with threaded fasteners that occurs when the surfaces of male and female threads are under a great deal of pressure. As fasteners are being tightened they are prone to galling, metal high points of the threads contact each other which increases friction and adhesion between the two and can generate enough heat to fuse and seize nuts and bolts together. If the fasteners continue to be tightened after galling has started it may strip the threads which can prevent the removal of the fastener. Tungsten Disulfide (WS2) prevents galling and seizing from occurring by reducing friction between fasteners which also makes them easier to assemble and disassemble. Galling and Seizing is also common in bearings & pistons in engines, hydraulic cylinders and motors and Tungsten Disulfide (WS2) excels at preventing it in these applications as well due to its high operating temperature of 1,200°F and compatibility with lubricants, fuels, and hydraulic fluids.
- Excellent at preventing thread galling and seizing on fasteners that require a high preload during assembly and facilitates easy installation and disassembly even after exposure to high temperatures.
- Lowest thread friction values available.
- High operating temperature.
- Prevents stainless steel galling and cold welding.
- Compatible with lubricants, fuels, hydraulic fluids.
- Excellent for steel, stainless steel, and titanium fasteners.
Tungsten Disulfide (WS2) coated stainless steel bolts have higher tension and a lower coefficient of friction compared to Xylan coated bolts.
Torque: | Tension: | Coefficient of Friction: |
---|---|---|
50 | 1316 | 0.101 |
100 | 2750 | 0.097 |
150 | 4083 | 0.098 |
200 | 5283 | 0.101 |
250 | 6266 | 0.106 |
300 | 7116 | 0.112 |
Torque: | Tension: | Coefficient of Friction: |
---|---|---|
50 | 795 | 0.161 |
100 | 1860 | 0.138 |
150 | 3230 | 0.129 |
200 | 4323 | 0.126 |
250 | 5367 | 0.125 |
300 | 6458 | 0.126 |