FLAT ROLLED SHEETS OF INVAR A NICKEL-IRON ALLOY. THE SIZE IS 50MM X 500 MM. THE THICKNESS IS 0.5MM. THE COMPOSITION IS 36% NICKEL AND IRON BALANCE. IT ALSO CONTAINS COBALT 0.05% SILICON 0.4% SULFUR 0.015 AND CHROMIUM 0.25. THE PRODUCT IS COLD ROLLED AND HAS A LOW THERMAL EXPANSION AND IS USED AS A GLASS SEALING ALLOY AS IT MATCHES ITS THERMAL EXPANSION COEFFICIENT.

CLASSIFICATION HAS BEEN DETERMINED IN ACCORDANCE WITH THE FOLLOWING:- GENERAL INTERPRETATIVE RULES (GIR)S GIR 1 HAS BEEN USED TO CLASSIFY THIS PRODUCT BY THE TERMS OF HEADING 7211 - FLAT-ROLLED PRODUCTS OF IRON OR NON-ALLOY STEEL, OF A WIDTH OF LESS THAN 600 MM, NOT CLAD, PLATED OR COATED GIR 6 HAS BEEN USED TO CLASSIFY THE GOODS TO SUBHEADING LEVEL 7211.23 NOT FURTHER WORKED THAN COLD-ROLLED (COLD REDUCED) ALSO CLASSIFIED IN ACCORDANCE WITH:- HARMONISED SYSTEM EXPLANATORY NOTE 7211