Ni-Span C Nickel-Iron Alloy Wire from Japan
Ni-Span C wire maintains constant modulus over wide temperature range, essential for precision springs in watches and instruments. The not cold-formed nickel alloy wire is classified under HTS 7505.22.50.00.
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%
Import Tips
• Elastic modulus certificates verify controlled thermal expansion properties
• Age-hardening condition must be documented for proper alloy identification
• Differentiate from common spring wire by providing specialized property data