What Is The Heat Treatment Of AISI4130 Hollow Rod
AISI4130 hollow bar is made of cold drawn steel tubes of aisi 4130 material or round steel bars, by grinding and precision polishing on the outside diameter of th 4130 round bar and then hard chromed to a certain thickness on the OD. 4130 Chrome hollow bar and 4130 solid hard chrome bar both very popular components for producing hydraulic cylinder parts especially cylinder shafts. Heat Treatment Of 4130 Hollow Rod 1.Quenched+Tempered(+QT) Quenching and tempering refers to the hardening (Quenching) of 4130 hollow rod materials at temperatures from 800 — 1,100 °C with a subsequent re-heating (Tempering) at temperatures from 540 — 680 °C. Hardening is a heat treatment process that comprises of austenitizing and rapid cooling. the 4130 chrome hollow rod is hard but also brittle. The subsequent high tempering temperature leads to an increased yield and tensile strength as well as to high elongation and toughness values. 2. Normallized (+N) Normal annealing refers to ...