300series austeniticstainless steelheat treatment processisa typicalsolution treatment.In theheatingprocess, tocarbidedissolved in austenite, and heated to1050 ~ 1150 ℃,appropriateheatfor a short time,all dissolvedcarbidesinthe austenite,and then rapidlycooled to below350 ℃,i.e.to obtaina supersaturatedsolid solutionunidirectionaluniformaustenite.The key to thisis therapid cooling ofthe heat treatment process,the cooling raterequiredto reach55 ℃ / s,fastafter solutionbyre-precipitation ofcarbidestemperature zone(550 ~ 850 ℃).Holding timeto beas short as possible, otherwise thecoarse grains, the impact ofsurface finish.

Su's heat treatment Co. Ltd. was founded in 1990, after decades of development, scale is continually expanding, is located in Shajing Town Baoan District Shenzhen City Bridge second industrial zone, covering an area of 3000 square meters, the main business is to take all the metal, alloy steel, beryllium copper, heat treatment of high speed steel, cryogenic treatment (-196 C), nitrogen gas, liquid nitrogen, QPQ salt bath production line, high-frequency quenching, blackening and carburizing, the surface of hard and stainless steel processing.
The company is equipped with power of heat treatment technology, established a perfect quality testing equipment, equipped with vacuum quenching furnace, vacuum furnace, pit furnace, furnace, liquid nitrogen atmosphere furnace, rotary furnace, large mesh belt furnace, improve metallographic inspection equipment, material failure analysis, scientific management and complete, rigorous technology, skilled operation.
Company will be excellent quality and perfect service, and actively challenge, satisfy customer demand, has passed ISO9001:2000 in 2003 September (SGS) international quality certification. Has now become a reputable manufacturers.