(1)Guangdong Stainless Steel CastingMatian loose iron stainless steel: This type of stainless steel has a body-centered cubic structure (BCC) that can attract magnets and quickly cool it from the Osten temperature. This has the best corrosion resistance, but the material is hard but brittle. Fire can increase ductility, but corrosion resistance will decrease. Especially tempering between 450°C and 650°C will cause the carbon atoms in the crystal lattice gap to diffuse and precipitate and form a network of chromium carbide with chromium to form adjacent areas. The consumption of chromium reduces the chromium content, which prevents the formation of a protective film and loses corrosion resistance, so special attention should be paid. The following is the heat treatment temperature of various Matian loose iron stainless steel materials.

(A) The temperature of 403, 410, 416se is 650-750℃.

(B) The temperature of 414 is 650-730℃.

(C) The temperature of 431 is in 6. (d) The temperature of 440-A, 440-B, 440-C, and the temperature of 420 is 680-750℃.

(2) Ferrous iron stainless steel: This type of stainless steel body-centered cubic structure (BCC) can attract magnets and is usually used in the automobile industry or the chemical industry. The strength will not be changed by heat treatment, but it can be cold-worked to increase the strength.

(3) Ostian ferrous stainless steel: This type of stainless steel face-centered cubic structure (FCC) has no effect on magnets. As mentioned above, this type of material is easy to process, so after processing, the residual stress of the material can be eliminated and different之 heat treatment.

(4) Precipitation-hardened stainless steel: This type of stainless steel is heat-treated at low temperature after high temperature quenching. The aluminum or copper in the material precipitates along the slip surface of the differential row or the grain boundary to form compounds (inter-metalliccompounds). Its strength or hardness. Commonly used precipitation hardening stainless steel 17-4PH, there are other 17-7PH, PH15-7MO, AM-350, AM-355 and so on.

(5) Heat treatment after welding of various stainless steels:Coffee machine accessoriesThe chromium element contained in stainless steel, after welding, will often diffuse and precipitate and combine with carbon to form chromium carbide in the high temperature area (heat-affected zone), resulting in partial reduction of the chromium component and failure to form a protective film. Corrosion conditions such as perforation are often Occurs in these heat-affected zones, which can remedy this situation. The industry often heat-treats the objects after welding.Robot stainless steel accessoriesIts function can make the chromium element in other areas diffuse to this chromium-deficient area to achieve a protective effect.