ALPHAS-C is internationally known as the L-TD process, or Low Temp Toyota Diffusion Process, developed in the Toyota Central Research and Development Lab Inc. in Japan. The remarkable coating  properties have been applied for dies and tools used under high temperature >1,100°F such as Aluminum Die casting, Extrusion and Hot Forging.

It is metallurgically bonded through the diffusion process and it is tight and strong adhesion to the substrate steel, which offers exceptional flaking resistance. The hardness and thicker deposition, dense and pure structure of ALPHAS-C provides unparalleled properties and contributes significantly to the longevity of tools and dies.

ALPHAS-C has unique duplex layers which consists on Cr-CN plus Compound layer +Diffusion layer of nitriding.

Characteristics

Galleries

Alphas-C Example Gallery

H13 (SKD61)

H13 (SKD11)

H13 (SKD61)

H13 (SKD61)

H13 (SKD61) BEFORE COATING

Facts and Data

Comparative rotating torque related to friction force of various coatings

Comparative Wear Depth

Comparative Wear Volume

Application to core pins for aluminum die casting

Application to core pins and bushing for aluminum die casting

Summary of an example of successful applications

Comparative resistance to sticking of counter-material of various coatings at high temperature

Comparative resistance to sticking of counter-material of various coatings at high temperature

Comparative weight change of various coatings in heating at ambient atmosphere at high temperature

Comparative weight loss of various coatings in molten aluminum

Comparative fracture load obtained by static bending test

Comparative wear rate of various coatings