The scope of this order is all clad <SUP>1 steel plate of a width of 600 millimeters (mm) or more and a composite thickness of 4.5 mm or more. Clad steel plate is a rectangular finished steel mill product consisting of a layer of cladding material (usually stainless steel or nickel) which is metallurgically bonded to a base or backing of ferrous metal (usually carbon or low alloy steel) where the latter predominates by weight.
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\1\ Cladding is the association of layers of metals of different colors or natures by molecular interpenetration of the surfaces in contact. This limited diffusion is characteristic of clad products and differentiates them from products metalized in other manners (e.g., by normal electroplating). The various cladding processes include pouring molten cladding metal onto the basic metal followed by rolling; simple hot-rolling of the cladding metal to ensure efficient welding to the basic metal; any other method of deposition of superimposing of the cladding metal followed by any mechanical or thermal process to ensure welding (e.g., electrocladding), in which the cladding metal (nickel, chromium, etc.) is applied to the basic metal by electroplating, molecular interpenetration of the surfaces in contact then being obtained by heat treatment at the appropriate temperature with subsequent cold rolling. See Harmonized Commodity Description and Coding System Explanatory Notes, Chapter 72, General Note (IV) (C) (2) (e).
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Stainless clad steel plate is manufactured to American Society for Testing and Materials (ASTM) specifications A263 (400 series stainless types) and A264 (300 series stainless types). Nickel and nickel-base alloy clad steel plate is manufactured to ASTM specification A265. These specifications are illustrative but not necessarily all-inclusive.
Clad steel plate within the scope of this order is classifiable under the Harmonized Tariff Schedule of the United States (HTSUS) 7210.90.10.00. Although the HTSUS subheading is provided for convenience and customs purposes, our written description of the scope of this order is dispositive. |