7304 Tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or steel

7304.11 Iron or steel (excluding cast iron); seamless, line pipe of a kind used for oil or gas pipelines, of stainless steel

• 7304.11.00.10 Of circular cross-section, of an external diameter not exceeding 406,4 mm and with a carbon equivalent value (cev) not exceeding 0,86 according to the international institute of welding (iiw) formula and chemical analysisFree
• 7304.11.00.90 OtherFree

7304.19 Iron or steel (excluding cast iron or stainless steel); seamless, line pipe of a kind used for oil or gas pipelines

• Of an external diameter not exceeding 168,3 mm
• 7304.19.10.20 Of circular cross-section and with a carbon equivalent value (cev) not exceeding 0,86 according to the international institute of welding (iiw) formula and chemical analysisFree
• 7304.19.10.80 OtherFree
• Of an external diameter exceeding 168,3 mm but not exceeding 406,4 mm
• 7304.19.30.20 Of circular cross-section and with a carbon equivalent value (cev) not exceeding 0,86 according to the international institute of welding (iiw) formula and chemical analysisFree
• 7304.19.30.80 OtherFree
• 7304.19.90.00 Of an external diameter exceeding 406,4 mmFree

7304.22 Steel, stainless; seamless, drill pipe, of a kind used in drilling for oil or gas

• 7304.22.00.20 Of circular cross-section, of an external diameter not exceeding 406,4 mm and with a carbon equivalent value (cev) not exceeding 0,86 according to the international institute of welding (iiw) formula and chemical analysisFree
• 7304.22.00.80 OtherFree

7304.23 Iron or steel (excluding cast iron or stainless steel); seamless, drill pipe, of a kind used in drilling for oil or gas

• 7304.23.00.20 Of circular cross-section, of an external diameter not exceeding 406,4 mm and with a carbon equivalent value (cev) not exceeding 0,86 according to the international institute of welding (iiw) formula and chemical analysisFree
• 7304.23.00.80 OtherFree

7304.24 Steel, stainless; seamless, casing and tubing, of a kind used in drilling for oil or gas

• 7304.24.00.20 Of circular cross-section, of an external diameter not exceeding 406,4 mm and with a carbon equivalent value (cev) not exceeding 0,86 according to the international institute of welding (iiw) formula and chemical analysisFree
• 7304.24.00.80 OtherFree

7304.29 Iron or steel (excluding cast iron or stainless steel); seamless, casing and tubing, of a kind used in drilling for oil or gas

• Of an external diameter not exceeding 168,3 mm
• 7304.29.10.20 Of circular cross-section and with a carbon equivalent value (cev) not exceeding 0,86 according to the international institute of welding (iiw) formula and chemical analysisFree
• 7304.29.10.80 OtherFree
• Of an external diameter exceeding 168,3 mm but not exceeding 406,4 mm
• 7304.29.30.20 Of circular cross-section and with a carbon equivalent value (cev) not exceeding 0,86 according to the international institute of welding (iiw) formula and chemical analysisFree
• 7304.29.30.80 OtherFree
• Of an external diameter exceeding 406,4 mm
• 7304.29.90.10 CasingsFree
• 7304.29.90.90 OtherFree

7304.31 Iron or non-alloy steel (excluding cast iron); seamless, cold-drawn or cold-rolled, tubes, pipes and hollow profiles of circular cross-section

• Precision tubes
• 7304.31.20.30 Of an external diameter not exceeding 406,4 mm and with a carbon equivalent value (cev) not exceeding 0,86 according to the international institute of welding (iiw) formula and chemical analysisFree
• 7304.31.20.95 OtherFree
• Other
• 7304.31.80.30 Of an external diameter not exceeding 406,4 mm and with a carbon equivalent value (cev) not exceeding 0,86 according to the international institute of welding (iiw) formula and chemical analysisFree
• 7304.31.80.99 OtherFree

7304.39 Iron or non-alloy steel (excluding cast iron); seamless, (excluding cold-drawn or cold-rolled), tubes, pipes and hollow profiles of circular cross-section

• Threaded or threadable tubes (gas pipe)
• 7304.39.50.30 Of an external diameter not exceeding 406,4 mm and with a carbon equivalent value (cev) not exceeding 0,86 according to the international institute of welding (iiw) formula and chemical analysisFree
• 7304.39.50.99 OtherFree
• Other, of an external diameter
• Not exceeding 168,3 mm
• 7304.39.82.30 With a carbon equivalent value (cev) not exceeding 0,86 according to the international institute of welding (iiw) formula and chemical analysisFree
• 7304.39.82.99 OtherFree
• Exceeding 168,3 mm but not exceeding 406,4 mm
• 7304.39.83.20 With a carbon equivalent value (cev) not exceeding 0,86 according to the international institute of welding (iiw) formula and chemical analysisFree
• 7304.39.83.80 OtherFree
• 7304.39.88.00 Exceeding 406,4 mmFree

7304.41 Steel, stainless; cold-drawn or cold-rolled (cold-reduced), tubes and pipes of circular cross-section

• 7304.41.00.10 With attached fittings, suitable for conducting gases or liquids, for use in civil aircraftFree
• 7304.41.00.90 OtherFree

7304.49 Steel, stainless; (excluding cold-drawn or cold-rolled), tubes pipes and hollow profiles of circular cross-section

• Of an external diameter not exceeding 168,3 mm
• 7304.49.83.10 With attached fittings, suitable for conducting gases or liquids, for use in civil aircraftFree
• 7304.49.83.90 OtherFree
• Of an external diameter exceeding 168,3 mm but not exceeding 406,4 mm
• 7304.49.85.10 With attached fittings, suitable for conducting gases or liquids, for use in civil aircraftFree
• 7304.49.85.90 OtherFree
• Of an external diameter exceeding 406,4 mm
• 7304.49.89.10 With attached fittings, suitable for conducting gases or liquids, for use in civil aircraftFree
• 7304.49.89.90 OtherFree

7304.51 Steel, alloy (not stainless steel); seamless, cold-drawn or cold-rolled (cold-reduced), tubes, pipes and hollow profiles of circular cross-section

• 7304.51.10.00 Straight and of uniform wall thickness, of alloy steel containing by weight not less than 0,9 % but not more than 1,15 % of carbon, not less than 0,5 % but not more than 2 % of chromium and, if present, not more than 0,5 % of molybdenumFree
• Other
• 7304.51.81.00 Precision tubesFree
• Other
• 7304.51.89.30 Of an external diameter not exceeding 406,4 mm and with a carbon equivalent value (cev) not exceeding 0,86 according to the international institute of welding (iiw) formula and chemical analysisFree
• 7304.51.89.99 OtherFree

7304.59 Steel, alloy (not stainless steel); (excluding cold-drawn or cold-rolled), tubes, pipes and hollow profiles of circular cross-section

• 7304.59.30.00 Straight and of uniform wall thickness, of alloy steel containing by weight not less than 0,9 % but not more than 1,15 % of carbon, not less than 0,5 % but not more than 2 % of chromium and, if present, not more than 0,5 % of molybdenumFree
• Other
• Of an external diameter not exceeding 168,3 mm
• 7304.59.82.30 With a carbon equivalent value (cev) not exceeding 0,86 according to the international institute of welding (iiw) formula and chemical analysisFree
• 7304.59.82.99 OtherFree
• Of an external diameter exceeding 168,3 mm but not exceeding 406,4 mm
• 7304.59.83.20 With a carbon equivalent value (cev) not exceeding 0,86 according to the international institute of welding (iiw) formula and chemical analysisFree
• 7304.59.83.80 OtherFree
• 7304.59.89.00 Of an external diameter exceeding 406,4 mmFree

7304.90 Iron or steel (excluding cast iron); seamless, tubes, pipes and hollow profiles, seamless, n.e.c. in heading no. 7304

• 7304.90.00.10 With attached fittings, suitable for conducting gases or liquids, for use in civil aircraftFree
• Other
• 7304.90.00.91 Tubes and pipes, of stainless steelFree
• 7304.90.00.99 OtherFree