AISI 52100 Hot-Rolled Ball-Bearing Steel Plate
Flat-rolled alloy steel plate of 52100 grade, specifically formulated as ball-bearing steel with 0.95-1.13% carbon and 1.25-1.65% chromium, hot-rolled to a thickness under 4.75 mm and width over 600 mm, not in coils. It falls under HTS 7225.40.51.30 because it meets the precise chemical composition for ball-bearing steel per U.S. Note (h) and is not further worked beyond hot-rolling.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If contains chipper knife steel elements
Chipper knife steel has distinct composition (0.48-0.55% C, 7.25-8.75% Cr, Mo, V) per U.S. Note (f), moving it to separate tool steel subheading.
If other tool steel not matching ball-bearing definition
Tool steels failing ball-bearing steel's tight elemental limits (e.g., higher Mn or S) classify as general tool steel under 7225.99.
If not alloy steel (under 10% total alloying elements)
Lacks minimum alloy content for Chapter 72 alloy steel, reverting to high-strength flat-rolled carbon steel heading.
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Import Tips & Compliance
• Certify exact chemical composition matching U.S
• Note (h) for ball-bearing steel (e.g
• 0.95-1.13% C, 1.25-1.65% Cr) with mill test reports to avoid reclassification
• Measure thickness precisely under 4.75 mm and width over 600 mm; provide gauge certifications as CBP often verifies dimensions
• Ensure no 'further worked' treatments like polishing or coating per chapter notes, or it shifts to 7225.99 or 7226 headings
Related Products under HTS 7225.40.51.30
SUJ2 Hot-Rolled Ball-Bearing Steel Sheet
SUJ2 grade (Japanese equivalent to 52100) hot-rolled flat-rolled steel sheet of ball-bearing quality, thickness 3-4 mm, width 800 mm, designed for bearing raceway production. Classified under HTS 7225.40.51.30 as hot-rolled alloy tool steel meeting ball-bearing composition without further working like cold-rolling or coating.
GCr15 Ball-Bearing Steel Hot-Rolled Strip
GCr15 Chinese-standard ball-bearing steel, hot-rolled into flat products under 4.75 mm thick and 700 mm wide, used for precision bearing components. Meets HTS 7225.40.51.30 as 'other alloy steel' of ball-bearing quality, hot-rolled, not coiled, per exact U.S. Note (h) elemental requirements.
100Cr6 Hot-Rolled Ball-Bearing Alloy Steel Plate
100Cr6 European-standard high-carbon chromium bearing steel plate, hot-rolled to 4 mm thickness x 1000 mm width for bearing ring stock. HTS 7225.40.51.30 applies due to ball-bearing steel definition match and hot-rolled, non-coiled form.
52100 Modified Hot-Rolled Bearing Quality Steel Sheet
Modified 52100 ball-bearing steel sheet with ultra-low sulfur/phosphorus for premium bearings, hot-rolled 2.5 mm thick x 1200 mm wide, not in coils. Specifically under HTS 7225.40.51.30 for its adherence to ball-bearing steel's strict chemistry including ≤0.03% S/P limits.