This invention discloses a high-
alloy high-performance rotary guide component and its manufacturing method, belonging to the field of stainless steel technology. It solves the problems of poor
microstructure uniformity and inability to simultaneously achieve mechanical properties and stress
corrosion resistance in existing rotary guide components. The manufacturing method includes:
smelting molten steel; preparing ingots;
forging the ingots into steel billets using a high-speed
forging machine after they are tapped from the furnace; heating and holding the steel billets;
forging the steel billets into intermediate billets using a
radial forging machine;
water cooling the intermediate billets; forging the water-cooled intermediate billets a second time using a
radial forging machine, followed by
air cooling to obtain finished steel billets; straightening,
machining, and
shot peening of the finished steel billets to obtain rotary guide components; the composition of the rotary guide components, by
mass percentage, includes: 18.00% ≤ Cr < 28.00%, 3.00% ≤ Mo ≤ 6.00%, 14.00% ≤ Ni ≤ 20.00%, 3.00% ≤ Mn ≤ 8.00%, Si ≤ 0.4%, Nb ≤ 0.25%, P ≤ 0.025%, S ≤ 0.02%, C ≤ 0.03%, N ≥ 0.3%, with the balance being Fe and other unavoidable impurities. The rotary guide components of this invention have fine and uniform grains and excellent mechanical and
corrosion resistance.