The 440C steel is a martensitic stainless steel. The carbon content is 1.0% and the chromium content is 16-18%. Strong rust resistance, high quality stainless steel.

Scope of application: Mainly used to manufacture bearing parts that work in corrosive environments and non-lubricating and strong oxidizing atmospheres. 440C has good high temperature dimensional stability, so it can also be used as corrosion resistant high temperature bearing steel. In addition, it can be used to manufacture high quality tools such as medical scalpels, scissors, nozzles, bearings, etc. The 40C has a low ability to withstand dynamic loads.

Shandong Second Machinery Co., Ltd. has successfully developed more than 1,000 molds and more than 3,000 projects. The success rate is 95%. The MIM factory has 6 plastic injection molding machines and 6 vacuum degreasing and sintering furnaces, including SHIMADZU integrated vacuum sintering furnace imported from Japan, 4 degreasing furnaces, 2 sand blasting machines, 4 milling machines, 7 drilling machines, and mold temperature machines. CNC lathes, heat treatment furnaces, magnetic grinding machines.