7225401000. Product Description. Special Steel S50C SAE1050 1.2510 Steel Plate For Mould. Product Introduction. S50C is a high-quality medium-carbon steel. As a kind of ordinary steel, it is widely used in the industrial field, especially the plate, which is a typical cold-working die steel material, often used as processing raw material of machinery factory to make various mechanical parts.SAE1050 / 1.1210 Carbon Tool Steel For Mold Basic 1.1210/ S50C/ SAE1050/ 50# Mold Basic Supporting Structure Carbon Tool Steel Plate . S50C is also a normal steel grade with wide application. It is close to S45C carbon steel, both in properties or in applications. Just customers in different area have different habit of S45C or S50C.