Proterial America distributes a variety of Tool Steel material produced by our production mill in Japan @ Yasugi Specialty Steels. Our steels are fully stocked at our Cincinnati, Ohio location of DIEHL Tool Steels, a subsidiary of Proterial America.

Our fully integrated steel production unit @ YASUGI Special Steel has the industry's most up to date equipment to offer the best melting, re-melting, forging, rolling & finishing in the manufacturing of Specialty Steel.

Proterial America is also members of NADCA & PMA

Hot Work Die Steels

Forging: Our various grades of H13 and specially alloyed forging die blocks offer customers the advantages of longer die life & fewer weld repairs. 

Die Casting: Our DAC P and DAC Magic are fully NADCA approved to Class B & C to offer our customers.

Cold Work Tool Steels

Stamping Die material such as A2, D2 & S7 as well as highly alloyed steels such as propriety alloyed steels like SLD Magic, YXR and SLDi. These steels are designed to maximize the best die performance with outstanding wear, chipping & galling characteristics.

Plastic Mold Steels

We offer CENA V and a variety of other mold steels to support the injection molding industry.

High Speed Steels & Matrix Steels

We produce M2, M42 and Powder Metal Steels for Cutting Tools, Broaches & Gear Cutting Hobs.

Steel Block Processing

With our DIEHL Tool Steel (Proterial America subsidiary) operational capabilities in Cincinnati, Ohio, our Tool Steels can be offered with six side milling surfaces within +/- .005 tolerances as we apply our Amada THV 100 duplex mill. All of our tool steel blocks are FARO-ARM validated by dimensional report to meet exact tolerances required by our customers.

more information at DIEHL Tool Steel (Proterial America Subsidiary)

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