Usinor

Arcelor France

Alain Leclercq

Jean-Michel Damasse

Michel Faral

Christian Marchionni

Yann Le Papillon

Philippe Rocabois

A metallurgical product, made of carbon steel and to be galvanized, which is in the form of a strip or of a sheet obtained from a continuously cast intermediate product having the following composition by weight: 0.0005%&#x2266;C&#x2266;0.15%; 0.08%&#x2266;Mn&#x2266;2%; Si&#x2266;0.040%; Al&#x2266;0.010%; Al&#x2266;0.004%; 0.0050%&#x2266;O&#x2266;0.0500%; P&#x2266;0.20%; S&#x2266;0.10%; each of Cu, Cr, Ni, Mo, W, Co&#x2266;1%; each of Ti, Nb, V, Zr&#x2266;0.5%; each of Sn, Sb, As&#x2266;0.1%; B&#x2266;0.1%; N&#x2266;0.0400%; and the remainder being iron and impurities. Also, a process for obtaining a metallurgical intermediate product, which includes: producing in a ladle a liquid steel the composition of which is as above, and in which the dissolved oxygen content is maintained between 0.0050 and 0.0500% by the establishment of a chemical equilibrium between the metal and the ladle slag; and casting the steel on a continuous casting machine.

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Paris, France

Alain Leclercq