Silicon Chrome Wire Spring
Silicon-chromium alloy steel wire spring for high-temperature valves and engines. Classified 7320.90.5020 as other wire spring (≤16mm wire), valued for heat/ fatigue resistance. Automotive and aerospace applications.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If for motor vehicle suspension
Vehicle end-use takes priority subheading.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right HTS code — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Chemical composition analysis mandatory for alloy verification
• Temperature ratings in specs distinguish from standard springs
Related Products under HTS 7320.90.50.20
Phosphor Bronze Equivalent Steel Wire Spring
Steel wire spring mimicking phosphor bronze properties for electrical contacts. HTS 7320.90.5020 as steel wire spring ≤16mm, used in switches/relays where conductivity secondary to strength.
Small Diameter Tension Spring
Fine wire tension spring (0.5-2mm dia) for medical devices and instruments. 7320.90.5020 for other wire springs, precision-wound stainless steel. Biocompatible finish.
Double Torsion Wire Spring
Dual-leg torsion spring from music wire for battery contacts and clamps. HTS 7320.90.5020 wire spring category.
Conical Compression Wire Spring
Tapered conical spring from steel wire for progressive loading in shock absorbers. 7320.90.5020 as other wire spring.
Square Wire Belleville Washer Spring
Square-section wire disc spring (Belleville) for high-load stacking. Wire ≤16mm qualifies 7320.90.5020.
Hairpin Tension Spring
Hairpin/bungee-style wire spring for gates and tarps. 7320.90.5020 classification.