Section 15 Base metals and articles of base metal 72 Iron and steel 72 28 Other bars and rods; angles, shapes and sections of other alloy steel 72 28 40 Bars and rods of alloy steel, nes, simply forged Commodity Code Description 72 28 40 00 Bars and rods of alloy steel, nes, simply forged 72 28 40 10 Of circular cross-section 72 28 40 90 Other