In the development of heat treating services for ferrous die-casted goods and tooling, Sun Steel is a pioneer. Our unique metal treatment solutions help pave the way for higher quality, more dependable, and durable cast iron products by incorporating the most recent developments in metallurgical engineering into the industrial die casting process. Our area of expertise is high pressure die cast (HPDC) dies, which are used to create inserts out of premium hotwork tool steel. Certain heat treat furnaces and certain heat treatment cycles are needed for these inserts. With the knowledge and tools necessary, Sun Steel Treating can manage any HPDC die insert weighing up to 8,000 pounds.