Stainless steel pipe fittings belong to a kind of pipe fittings, it is made of stainless steel material. The stainless steel pipe fittings internal thread is mainly through the tap tapping processing, good craft can improve the viscosity of stainless steel pipe fitting material, but if you don’t pay attention to some things, in the process of tap tapping processing, will be prone to scrape the workpiece cutting thread or tap the phenomenon such as collapse edge, it will not only affect the machining efficiency, can also lead to stainless steel pipe fittings were damaged, because In order to prolong its service life and performance.

(1) Choose better tap material. The wear resistance and toughness of tap can be improved by adding special alloying elements into ordinary high speed tool steel.

(2) The wear resistance, heat resistance and lubricity of tap can be significantly improved by coating the surface of tap thread with titanium nitride coating.