Screw Heat Treatment

Quenching and tempering HB220-270, nitriding HRC>65. The method of using titanium carbide coating abroad to improve the corrosion resistance of screw surface is useful, but according to reports, its wear resistance is not good enough.
A series of measures have been taken abroad to improve the wear and corrosion resistance of screws. One approach is to use highly wear-resistant and corrosion-resistant alloy steel. Such as 34CrAlNi, 31CrMo12, etc. There is also a method of spraying Xaloy alloy on the surface of the screw. This Xaloy alloy has high wear and corrosion resistance.