Roller chain Hs Code

Roller chain harmonized system code

Product Overview Roller chain classified under HS Code 731511 refers to precision-engineered mechanical chains consisting of a series of cylindrical rollers held together by side plates, designed primarily for power transmission applications. Typically manufactured from high-grade alloy steel, these chains exhibit standardized pitch dimensions (commonly ranging from 6.35 mm to 50.8 mm) and are heat-treated to enhance tensile strength, wear resistance, and corrosion protection. The product encompasses various processing levels including roller chains with attachments, leaf chains, and those with specialized coatings for enhanced durability. Subcategories within HS 731511 differentiate roller chains based on pitch size, tensile capacity, and presence of attachments. Commercially, these chains serve critical roles in food processing machinery, retail material handling systems, and industrial manufacturing lines, where reliable and consistent mechanical drive performance is essential. Their robust construction and compliance with ISO and DIN standards position them as a preferred component in international supply chains, offering optimal balance between operational efficiency and maintenance cost reduction. HS Code Classification & Trade Specifications The complete HS Code for roller chain is 7315.11, where Chapter 73 covers “Articles of Iron or Steel,” Heading 7315 pertains specifically to “Chain and Parts of Chain,” and Subheading 731511 designates “Roller Chains.” This classification is based on the product’s composition, design function as a mechanical transmission element, and standardized physical characteristics. For international trade, roller chains under this code are typically packaged in sealed, corrosion-inhibiting containers or boxes with desiccants to prevent moisture ingress during transit. Preservation methods often include light oil coatings or phosphate treatments to maintain surface integrity. Shipping requirements adhere to ISPM 15 for wooden packaging, if applicable, and products are documented with compliance to WTO agreements and Customs-Trade Partnership Against Terrorism (C-TPAT) protocols. Quality standards referenced include ISO 606 and ANSI B29.1, ensuring dimensional accuracy, tensile strength (often exceeding 1000 MPa), and fatigue resistance. This detailed classification and trade specification support efficient customs clearance, accurate duty assessment, and compliance with international trade regulations.

Roller chain Chapter Note

1.- In this Chapter the expression “cast iron” applies to products obtained by casting in which iron predominates by weight over each of the other elements and which do not comply with the chemical composition of steel as defined in Note 1 (d) to Chapter 72. 2.- In this Chapter the word “wire” means hot or cold-formed products of any cross-sectional shape, of which no cross-sectional dimension exceeds 16 mm.