A family of prehardened mold steels from France that boast faster and easier machining and higher strength than standard P20-grade steels also are notable for their higher thermal conductivity, which can lead to faster mold cycles.

A family of prehardened mold steels from France that boast faster and easier machining and higher strength than standard P20-grade steels also are notable for their higher thermal conductivity, which can lead to faster mold cycles. Superplast 300, 350, and 400 steels from Industeel USA, Coatesville, Pa., div. of Arcelor Mittal, are distributed here by Burger Iron Co. (BICO) Service Centers, Mogadore, Ohio, and Sturdell Industries, Rochester, N.Y. These products reportedly offer moldmakers significantly faster machining and longer cutting-tool life, as well as better weldability. These products have been available here since 1999 but have achieved limited recognition, according to Industeel sources. Up to now, they have been marketed primarily on their benefi ts to moldmakers, but Industeel notes that they also have unrecognized benefits for molders. Foremost among these is 18% higher thermal conductivity than P20 steels, which can lead to reductions in molding cycles. Molds made of Superplast steels are also more durable because of 15% to 20% higher yield strength than P20 steel, which resists deformation of mating mold surfaces. Superplast steels cost about 10% more than P20 steel, but steel is about 10% to 15% of a mold’s cost, according to Industeel sources, and faster machining with less downtime can make up for the difference. (800) 321-0983 • www.bicoakron.com (888) 783-3584 • www.sturdell.com (610) 383-3000 • www.industeel.info

BICO Steel Service Centers
3100 Gilchrist Rd. Mogadore, OH 44260-1246
Phone (330) 253-5121 Fax (330) 253-4539