Steel Requires Less Machining than D2 after Heat Treatment

Diehl Tool Steel now offers Hitachi Metals America’s SLD-i cold work premium tool steel, which exhibits better wear and toughness when used for forming and trim sections than D2.

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Diehl Tool Steel Inc. now offers Hitachi Metals America, LLC’s SLD-i cold work premium tool steel, which is an advanced tool steel grade used in various blanking and forming applications where advanced, high strength steel (AHSS) parts are processed. It is produced using the same heat treatment as D2 but exhibits better wear and toughness when used for forming and trim sections. It also shows better wear than 8 percent cold-rolled steels for specific draw sections of large automotive dies. 

Because of the unique manufacturing process, Hitachi SLD-i also minimizes heat treating deformation. Hitachi SLD-i requires less machining after heat treatment and a decreased amount of shape adjustment than D2. In specific application areas, customers have experienced improvement over conventionally applied D2.

SLD-i is now available in flat cross-sections up to 5" thick and provides an effective combination of wear resistance, toughness and tool performance. Diehl can machine Hitachi SLD-i tool steel to toolmaker tolerances using its Accu-Square process.