TK Stainless
TK Stainless
TK Stainless
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78 MaGaZine stainless steel<br />
CoMMerCiaL KiTChens are<br />
a major area of application for<br />
the new materials from italy.<br />
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superFerriTiC sTainLess sTeeLs FroM Terni<br />
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An extended product portfolio thanks to the use of innovative technology: In<br />
2008 ThyssenKrupp Acciai Speciali Terni invested in a VOD converter to provide<br />
new ways of exploiting market potential. Work processes have been optimized,<br />
and in particular the company’s portfolio of ferritic steels has been expanded to<br />
include special grades. For example, the Terni plant has been producing new<br />
superferritic steels since mid-2008.<br />
Two of the latest material innovations are 470LI-24 Cr and 460LI-21 Cr.<br />
Potential applications include commercial kitchens, oven hobs, industrial<br />
washing machines, restaurant equipment, inner paneling for elevator cabs,<br />
street furniture and boilers. “Thanks to their unique production process and<br />
their special chemical composition, they offer greater corrosion resistance<br />
than austenitic stainless steels,” says Dr. Alfred Otto, ThyssenKrupp Nirosta<br />
Executive Board member responsible for strategic product development and<br />
thus for product development in the entire <strong>Stainless</strong> group. The 470LI-24 Cr and<br />
460LI-21 Cr grades are produced as flat-rolled steel. Both deliver outstanding<br />
yield and tensile strengths, good elongation and deep-drawing properties as<br />
well as a uniform and homogeneous microstructure. Dr. Harald Espenhahn,<br />
Executive Board Chairman of ThyssenKrupp Acciai Speciali Terni, emphasizes<br />
the additional advantage of the new AST production route: “By dispensing with<br />
the use of nickel and thanks to the higher yield strength that allows thinner<br />
gauges, the two innovations 470LI-24 Cr and 460LI-21 Cr offer economically<br />
attractive alternatives to the standard materials 316(1.4301) and 304(1.4401).”<br />
Market studies carried out by ThyssenKrupp Acciai Speciali Terni<br />
show significant potential for the new material types on the European market.<br />
Additional demand is expected from the Asian market.<br />
The two newly developed materials were produced for the first time<br />
in the late summer of 2008. In September 2008 ThyssenKrupp AST launched<br />
a national and international advertising campaign to present the two new<br />
innovative materials and other superferritic steels produced in the VOD converter<br />
and market them successfully. ---