AISI 52100 Cold-Rolled Ball-Bearing Steel Sheet
Flat-rolled alloy steel sheet of AISI 52100 grade, cold-rolled to precise thickness between 0.5-3mm and width over 600mm, specifically formulated for ball-bearing applications with 0.95-1.13% carbon and 1.25-1.65% chromium per Chapter 72 note (h). Not further worked beyond cold-rolling, classified under HTS 7225.50.11.30 as tool steel of ball-bearing quality. Used primarily in manufacturing high-precision bearing components requiring superior hardness and fatigue resistance.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If alloy tool steel but does not meet exact ball-bearing steel element limits
Falls under general 'other alloy steel, cold-rolled' if composition deviates from precise ball-bearing steel specs in US Note (h).
If further worked with surface treatments like polishing or coating
Chapter 72 defines 'further worked' to include polishing, coating, etc., moving it out of 'not further worked than cold-rolled' provisions.
If width under 600mm
Width threshold determines heading 7225 subheading structure; narrower strips classify differently.
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Import Tips & Compliance
• Provide mill test certificate confirming ball-bearing steel composition per US Note (h) (e.g
• 0.95-1.13% C, 1.25-1.65% Cr) at time of entry
• Verify product meets 'not further worked than cold-rolled' criteria - no polishing, coating, or cladding allowed under this subheading
• Ensure accurate width measurement (>600mm) and distinguish from hot-rolled products to avoid misclassification
Related Products under HTS 7225.50.11.30
SUJ2 Japanese Standard Ball-Bearing Steel Plate
Cold-reduced flat-rolled plate of SUJ2 alloy steel (equivalent to AISI 52100), width 800-1500mm and thickness 1-4mm, meeting ball-bearing steel definition with controlled carbon (0.95-1.1%), chromium (1.3-1.6%), and low sulfur/phosphorus. Classified in 7225.50.11.30 as cold-rolled tool steel of ball-bearing quality, not further worked. Essential material for rolling element bearings in automotive and industrial applications.
GCR15 Chinese Ball-Bearing Quality Steel Sheet
Cold-rolled sheet of GCr15 high-carbon chromium bearing steel, 700mm width x 2mm thick, with composition 0.95-1.05% C, 1.30-1.65% Cr, and trace elements per US ball-bearing steel note (h). HTS 7225.50.11.30 applies to this wide, cold-reduced tool steel not further worked than cold-rolled. Standard material for miniature and precision ball bearings.
100Cr6 European Ball-Bearing Steel Coil
Cold-rolled coil of 100Cr6 alloy steel (EN standard), slit to 900mm width with 1.5mm thickness, featuring ball-bearing steel chemistry including 1.0% C max, 1.5-1.7% Cr, and minimal impurities. Falls under HTS 7225.50.11.30 as flat-rolled tool steel of ball-bearing quality, width ≥600mm, not further worked. Used by bearing manufacturers for raceway production.
52100 Chrome Steel Cold-Reduced Bearing Sheet
Precision cold-rolled 52100 chrome steel sheet, 1200mm x 2.5mm, engineered for ball bearings with exact ball-bearing steel alloy per US note (h): 1.03-1.08% C, 1.45% Cr typical. HTS 7225.50.11.30 covers this wide format tool steel not further worked than cold-rolled. Primary feedstock for aerospace and automotive bearing rings.