7609 Aluminium; tube or pipe fittings (e.g. couplings, elbows, sleeves)

7609.00 Aluminium; tube or pipe fittings (e.g. couplings, elbows, sleeves)

• 7609.00.00.10 For use in certain types of aircraft4%
• 7609.00.00.30 Aluminium connecting block for automotive air conditioning systems: -with a t6 hardening, -equipped with round stubs with a circumferential outer groove, -with through or non-through holes, made of profiles with an upper radius of 8 mm or more but not more than 11 mm, and a lower radius of 12 mm or more but not more than 17 mm, -with a distance between holes of 15 mm or more but not more than 22 mm, -with sockets designed for brazing or clamping, -with mounting holes for m6 or m8 mounting screw, threaded or not, -with a width of 5 mm or more but not more than 16 mm, -for connecting a compressor, a condenser, an evaporator, a chiller and other lines4%
• 7609.00.00.40 Flame brazed aluminium block for connecting tubes in automotive heat exchangers and/or turbocharged air coolers and/or automatic transmission coolers: -with extruded, bent connection tubes with an outer diameter of 5 mm or more, but not more than 25 mm, -with a weight of 0,02 kg or more, but not more than 0,25 kg, for use in the manufacture of cooling system in vehicles of chapter 874%
• 7609.00.00.50 Machined aluminium components: -containing by weight 0,55 %, or more but not more than 0,61 % of magnesium, -containing by weight 0,55 %, or more but not more than 0,61 % of silicon, -with a hardening state of t5 or t6, -with a mass of 0,05 kg or more, but not more than 0,2 kg, for use in the manufacture of co₂ cooling systems in motor vehicles4%
• 7609.00.00.60 Aluminium connection block: -with a weight of 3 g or more but not more than 400 g, -manufactured from 6061-t6 or 6060-t6 or 6082-t6 aluminium grade, -being an integral part of an air conditioning hose assembly or oil cooling line hose assembly or air brake line hose assembly or water cooling line hose assembly, -with holes (sockets) or splines (pilots) or threads that allow installation in an automotive or other air conditioning system (also understood as installation in the line), -with sockets designed for brazing or fastening, -with at least 1 through-hole with a diameter of 3 mm or more but not more than 25 mm, for the manufacture of automotive cooling and air conditioning systems4%
• 7609.00.00.90 Other4%