Tension spring|HS Code

Tension spring harmonized system code

Product Overview The Tension Spring, classified under HS Code 7320, is a mechanical device carefully engineered to absorb and store energy, while also creating a resistance against a pulling force. These are made from hardened steel materials with varying dimensions such as diameter, length, and coil count, providing diverse options for different applications. The subcategories in HS Code 7320 are categorized according to the spring's processing levels, including cold and hot formed springs, and its quality attributes such as tensile strength, load capacity, and durability. Tension Springs are primarily used in a wide range of industries including automotive, aerospace, agricultural machinery, and home appliances, offering a flexible solution for mechanisms that require a pulling force to return to their original position. Their market positioning lies in their unique feature of extending under load, allowing for a controlled application of tension in the required areas and giving them a competitive advantage over other types of springs. HS Code Classification & Trade Specifications HS Code 7320 represents springs and leaves for springs, of iron or steel. The 6-digit code's structure is broken down hierarchically into Chapter 73 (articles of iron or steel), Heading 7320 (springs and leaves for springs, of iron or steel), and Subheading within this category. The Tension Spring falls under this specific code due to its iron or steel composition and its function as a spring. Trade considerations for this product typically include packaging in bulk or individually, depending on the size of the spring, and preservation methods such as anti-rust treatments to prevent damage during transit. Shipping requirements generally involve secure placement to prevent distortion or damage to the springs. Quality standards for Tension Springs are set by international organizations like the International Organization for Standardization (ISO), ensuring they meet specific measurable attributes such as load capacity, tensile strength, and durability. These standards, combined with the product's compliance with World Trade Organization and customs documentation stipulations, ensure its acceptance and usability in international trade.

Tension spring 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.