Stainless Steel Heat Treatment Technology Of Stainless Steel Precision Casting

Marten loose iron stainless steel: This kind of stainless steel body-centered cubic structure (BCC) can attract the magnet, it will be cold from the Austenitic temperature, which has good corrosion resistance, but the material is hard and brittle, and then tempered can increase the ductility, but the corrosion resistance will be reduced, especially in the 450 degrees Celsius to 650 degrees Celsius tempering. It will cause the carbon atom diffusion precipitation in the crystalline lattice gap and chromium to form a network of chromium carbide resulting in the consumption of chromium elements in the adjacent area to reduce the chromium composition, can not form a protective film, and loss of corrosion resistance, so special attention is needed.

Stainless steel precision casting Austenite stainless steel: This kind of stainless steel face-centered cubic structure (FCC) does not work on the magnet, as discussed earlier, such materials are easy to process, so the residual stress of the material can be eliminated after processing and can be applied to different heat treatment.

Stainless steel precision casting granular iron stainless steel: This kind of stainless steel body-centered cubic structure (BCC) can be magnets are usually used in the automotive industry or chemical industry, the strength will not change due to heat treatment, but can increase the strength of cold working.

Stainless steel precipitation hardening stainless steel: This stainless steel by high temperature quenching after low temperature heat treatment, due to the material containing aluminum, or copper precipitated along the sliding surface or grain boundary formation of compounds (inter-metalliccompounds) and can improve its strength or hardness. Commonly used precipitation hardening stainless steel 17-4PH, others 17-7PH, PH15-7MO, AM-350, AM-355 and so on.