What is the Chinese grade equivalent to SUS440C?
1 Answers
SUS440C corresponds to the domestic grade 9Cr18Mo. 440C stainless steel is a high-carbon, high-chromium martensitic stainless steel with a carbon content of 1.0% and a chromium content of 17%. Application scope: Mainly used for manufacturing bearing components that operate in corrosive environments and strong oxidizing atmospheres without lubrication. 440C has good high-temperature dimensional stability, making it suitable for use as corrosion-resistant high-temperature bearing steel. Additionally, it can be used to produce high-quality cutting tools such as medical scalpels, scissors, nozzles, and bearings. However, 440C has a relatively low capacity to withstand dynamic loads. Delivery condition: Generally delivered in heat-treated condition, with the type of heat treatment specified in the contract; if not specified, it is delivered in non-heat-treated condition.