The use of stainless steel pipes is now more and more extensive. Because of its good corrosion resistance, it plays a crucial role in engineering construction. In the process of production, we need to perform solution treatment on stainless steel pipes. The main purpose is to obtain certain Martensite increases the hardness of the product. Let's take a look at the solution treatment of stainless steel pipes:
(1) The intermediate aging method is heated to (760±15) degree after the solution treatment, and the temperature is kept for 90 minutes because Cr23C6 carbides are precipitated from the austenite, which reduces the carbon and alloying elements content in the austenitic 904L stainless steel pipe , the Ms point is raised to 70 degree and then cooled to room temperature to obtain martensite plus ferrite plus retained austenite structure, and the retained austenite is decomposed after aging at 510 degree .
(2) Apre ajisteman tanperati ki wo ak tretman kriyojenik, solisyon an premye chofe a 950 degre pou 90 minit. Akòz ogmantasyon nan pwen an Ms, yon ti kantite martensite ka jwenn pa refwadisman nan tanperati chanm; kantite martensite.
(3) Apre tretman solisyon pa metòd deformation frèt, deformation frèt fèt nan tanperati chanm. Kantite martensite ki te fòme nan tiyo san pwoblèm 904L pandan deformation frèt ki gen rapò ak kantite deformation ak konpozisyon tiyo asye pur 904L la.
Pi wo a twa metòd yo souvan itilize metòd pou tretman solisyon nan tiyo asye pur. Mwen espere ke yo ka ede ou.