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Aichi Steel Launches Sales of "ECOSCUT-STEEL,"

Environmentally Friendly Steel

 

Tokai City, August 23, 2001 - Aichi Steel Corporation (President: Yuji Shibata) has developed a lead-free steel, called "Ecoscut-Steel," for cars, that is expected to significantly reduce the cost of mass-produced parts. The new product is already on the market. Aichi Steel's goal has been to develop a product with superior-cut attributes. Its new free cutting steel technology can be applied to many kinds of steel, and may become the foundation for producing environmentally friendly steel for cars in the future.

Lead cutting steel, which is easily cut, has been widely used for crankshafts, connecting rods, and chassis parts. A major issue, however, is that it contains lead, a harmful substance to the environment.

Another reason the new steel is considered promising is the growing demand for lightweight auto-parts (which helps realize higher fuel mileage by reducing the emission of CO2). Lighter parts require stronger steel, but it is difficult to cut high-strength steel, which increases part cost. It was therefore essential to develop a new type of strong steel, which is easily cut so that steel parts will weigh less.

With this background, Aichi Steel began to develop jointly lead-free steel with superior-cut attributes with Toyota Central R&D Laboratory Inc. and Sanyo Special Steel Co., Ltd. in 1997, and completed the basic development in 1998. Aichi Steel developed its own refining and molding technologies, as well as heat forging technology for mass production in 1999. In order to promote the use of Ecoscut-Steel, the mass production technology and know-how for heat forging, as well as the steel itself, will be available to the market.

Ecoscut-Steel will be used in Toyota vehicles in August, after the auto manufacture examines the durability and its commercialization as a crankshaft.

 

<Outline of Ecoscut-Steel>

 

Product Name:   Ecoscut-Steel

 

Characteristics:     Steel sulfide containing magnesium and calcium. It is leadless and therefore can be more easily cut than steel containing lead

 

Points of Development:  

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teel can be cut more easily because its components are generated by adding the proper amount of magnesium, calcium, and sulfur

Sulfide must be finely distributed in steel so as not to degrade part durability

Technology to add magnesium

Technology to prevent nozzles from clogging in the process of continuous molding

 

Major application: Auto-parts including crankshafts, connecting rods, and chassis

 

Patents: Three patents have been filed in Japan and one patent abroad

 

Factory:   Aichi Steel, Chita plant

 

Sales method:    Aichi Steel deals with the entire process, from the steel lumbers to their forging, and directly delivers the forged steel to companies in principle. (Steel lumbers are delivered on users' demand)

 

Date to start sales: Sales formally started in August 2001

 

Sales target: 60,000 tons annually (2005)

 

Inquiry: Aichi Steel Corporation

Part Engineering Development Div.

TEL: +81-52-603-9253