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SITCSection 6
U.S. exports of silico-manganese steel bars and rods (SITC 67642) totaled $418K in July 2026.
Importers of Silico-Manganese Steel Bars and Rods paid $33K in duties in July 2026 — an effective duty rate of 38% on $88K in dutiable value, based on actual customs collections rather than the published tariff schedule. Silico-Manganese Steel Bars and Rods imports of $88K in July 2026 ran 48% above the year-to-date monthly average of $59K.
Last updated: July 2026 dataSilico-manganese steel derives its properties from a combined silicon and manganese alloying approach, yielding a grade prized for spring applications, agricultural equipment, and structural components requiring high fatigue resistance. Its dedicated SITC classification reflects a chemistry profile distinct from both carbon steel and general alloy steel, and importers must present mill chemistry documentation to support this classification at entry. Like other steel mill products, silico-manganese bar is subject to Section 232 tariffs, making origin and quota status important cost variables for buyers.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
7 shipments/mo
Basic heading 67642 · $88K of $26.7B
Silico-manganese steel is defined by its specific combination of silicon and manganese additions at levels that exceed those of ordinary non-alloy steel. The HTS and SITC schedules carve it out explicitly from general alloy steel NES categories, so the mill test certificate must clearly show both the silicon and manganese percentages to support the classification.
Leaf and coil spring manufacturing for automotive and heavy-vehicle suspensions is the dominant application, as the silicon-manganese combination provides the elastic limit and fatigue life required. Agricultural implement manufacturers and rail equipment producers also specify this grade for components subject to repeated loading.
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Exports · July 2026
destination
Mexico and China together take 92% of it.
customs district
Census does not publish district detail for this classification system.
origin
Census does not publish state detail for this classification system.
entry
Census does not publish port detail for this classification system.
ImportsExports
Imports
$88KYoY · Pro
Exports
$418KYoY · Pro
12-mo low · imports
YoY · ProFewer than 6 of the last 12 months reported trade above $500K; the trend chart is not shown for thin series.
Through July 2026. Source: U.S. Census Bureau.