Silico-Manganese Alloy Steel Lock Wire
Silico-manganese alloy steel lock wire, soft annealed, used for safety wiring in aerospace and machinery to secure fasteners. The alloy composition provides kink resistance and consistent performance, classifying it under tariff item 7229.20.00 as wire of silico-manganese steel.
Import Duty Rates by Country of Origin
| Origin Country | MFN Tariff | Surtaxes | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | Free | — | Free |
| 🇲🇽Mexico | Free | — | Free |
| 🇺🇸United States | Free | +50.0% | 50% |
| 🇩🇪Germany | Free | — | Free |
| 🇯🇵Japan | Free | — | Free |
More Specific Codes
This product may fall under a more specific subheading:
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If the wire is of other alloy steel not meeting silico-manganese specs
Covers other alloy steel wire, including high-speed or silicon-electrical steel, if composition differs.
If the wire is non-alloy steel, not silico-manganese
Non-alloy steel wire, not plated or coated, falls under this heading for iron or non-alloy steel.
If the wire is fabricated into a specific article, like a lock washer
Articles of iron or steel wire, such as formed safety wire products, are classified here.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right tariff item — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Ensure the wire meets the silico-manganese steel definition per Chapter 72 subheading note 1(e) (carbon ≤0.7%, manganese 0.5-1.9%, silicon 0.6-2.3%)
• Provide a mill certificate or lab analysis to the CBSA to confirm alloy composition
• Verify if the wire is considered 'parts of general use' under Section Note 2, which could affect classification
Related Products under Tariff item 7229.20.00
0.6mm Ultra-Fine Copper-Plated Silico-Manganese Welding Wire
Ultra-fine 0.6 mm copper-plated round wire made from low-carbon silico-manganese steel, used for precision electric arc welding in thin-sheet applications. The copper coating improves arc stability and conductivity, and the silico-manganese composition (Mn >0.9%, Si >0.6%) qualifies it as other alloy steel wire under tariff item 7229.20.00.
0.8mm Copper-Coated ER70Si Silico-Manganese Welding Wire
0.8 mm copper-coated round wire of ER70Si-grade silico-manganese steel, designed for gas-shielded electric arc welding in automotive and fabrication industries. The silico-manganese composition (C <0.20%, Mn >0.9%, Si >0.6%) meets the definition of other alloy steel, and the wire form fits tariff item 7229.20.00.
1.0mm Copper-Coated Silico-Manganese Steel Arc Wire Spool
Spool-wound 1.0 mm round copper-plated wire made from silico-manganese alloy steel, used for electric arc welding in construction. The low carbon content (<0.20%) and high manganese and silicon levels classify it as other alloy steel wire under tariff item 7229.20.00.
1.2mm Copper-Clad Silico-Manganese Welding Consumable
1.2 mm copper-clad round consumable wire from silico-manganese steel, used for GMAW electric arc welding processes. The cladding provides lubricity and arc focus, while the alloy composition (C <0.20%, Mn >0.9%, Si >0.6%) places it under tariff item 7229.20.00 as wire of silico-manganese steel.
1.2mm Copper-Plated Silico-Manganese MIG Welding Wire
High-performance 1.2 mm diameter round copper-coated wire made from silico-manganese steel alloy, optimized for MIG electric arc welding of structural steel. The copper plating enhances electrical conductivity and corrosion resistance, and the alloy composition meets the definition of silico-manganese steel under tariff item 7229.20.00.
1.4mm Copper-Coated Low-Carbon Silico-Manganese Filler Wire
Round 1.4 mm copper-plated filler wire of silico-manganese steel alloy, tailored for electric arc welding in shipbuilding and pipelines. The low carbon (<0.20%) and high manganese and silicon content classify it as other alloy steel wire under tariff item 7229.20.00, with the copper plating ensuring smooth arc initiation.