AISI 52100 Hot-Rolled Ball-Bearing Steel Round Bar
A hot-rolled round bar made from AISI 52100 alloy steel, specifically formulated for ball-bearing applications with 0.95-1.13% carbon, 1.25-1.65% chromium, and low sulfur/phosphorus levels as per HTS Chapter 72 note (h). It is not further worked beyond hot-rolling, classifying it under 7228.30.2000 as other bars and rods of ball-bearing steel. This steel provides high hardness and wear resistance essential for bearing races and rolling elements.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If not meeting exact ball-bearing steel element limits
Falls under other tool steel if lacking precise carbon/chromium/sulfur specs of ball-bearing steel per note (h)
If cold-rolled or drawn instead of hot-rolled
Cold-worked bars shift to 7228.50 heading regardless of steel type
If non-alloy steel composition
Non-alloy bars go to Chapter 72 heading 7222, not alloy steel Chapter 72
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Import Tips & Compliance
• Provide mill test certificate confirming ball-bearing steel composition per US Note (h) to avoid reclassification; ensure product is truly not further worked (no polishing or coating); watch for alloy content declarations as mislabeling can trigger audits
Related Products under HTS 7228.30.20.00
Ball-Bearing Steel Hot-Extruded Hexagonal Rod
Hot-extruded hexagonal rod of ball-bearing steel compliant with US Note (h), featuring controlled low impurity levels for superior fatigue resistance in rolling bearings. Not further worked than extrusion, it fits HTS 7228.30.2000 as other rods of ball-bearing tool steel. Used primarily for manufacturing bearing components requiring dimensional stability under load.
SUJ2 Hot-Rolled Ball-Bearing Steel Square Bar
SUJ2 (Japanese equivalent to AISI 52100) hot-rolled square bar meeting ball-bearing steel specifications in HTS Chapter 72 note (h), ideal for precision bearing rings. Delivered not further worked than hot-rolling, properly classified under 7228.30.2000. Offers excellent surface quality and minimal inclusions for high-cycle bearing applications.
100Cr6 Ball-Bearing Steel Hot-Drawn Flat Bar
100Cr6 (EN standard) hot-drawn flat bar of ball-bearing steel per US Note (h), with precise 1.0% carbon and 1.5% chromium for roller bearing applications. Not further worked, classifying under HTS 7228.30.2000 as alloy tool steel bars. Provides consistent hardness after heat treatment for heavy-duty bearings.
GCr15 Hot-Rolled Ball-Bearing Steel Rod
Chinese GCr15 grade hot-rolled rod equivalent to AISI 52100, certified to ball-bearing steel specs in HTS note (h) with controlled manganese and silicon. Used for bearing balls and races, imported not further worked under 7228.30.2000. High purity levels ensure long bearing life under high speeds.