NEWS

Austenitic stainless steel forgings are more difficult to forge than ordinary steel, but there are few surface defects. Most austenitic stainless steel forgings can be forged over a wide temperature range above 927°C. Since austenitic stainless steel forgings have no phase transformation in the high temperature range, the forging temperature is higher than that of martensitic stainless steel, but high chromium or low carbon stainless steel does not have the above properties, because when the temperature is higher than 1093 ℃, high chromium or low carbon stainless steel will produce different contents of ferrite according to the composition, which is harmful to forgeability.

The good quality of raw materials is a prerequisite for ensuring the quality of forgings. If there are shortcomings in raw materials, it may affect the forming process of forgings and the quality of forgings. If the chemical molecules of the raw materials exceed the required range or the content of residue elements is too high, it will cause relatively great harm to the forming and quality of forgings. For example, S, B, Cu, Sn and other classics are easy to produce low melting point phases, making stainless steel forgings prone to thermal brittleness.

Wear-resistant alloy steel means that in addition to steel containing silicon and manganese as alloying or deoxidizing elements, it also contains other alloying elements (such as chromium, nickel, molybdenum, vanadium, titanium, copper, tungsten, aluminum, cobalt, niobium, zirconium and other elements) and some non-metallic elements (such as boron, nitrogen, etc.), depending on the content of alloying elements in steel.