GCr15 Ball-Bearing Steel Cold-Rolled Flat Bar
GCr15 is the Chinese equivalent of AISI 52100, a high-carbon chromium alloy steel bar cold-rolled to precise dimensions for bearing races and rolling elements, meeting HTS ball-bearing steel specs in note (h). Classified under 7228.50.1010 as cold-formed tool steel bars specifically of ball-bearing quality, without additional surface treatments. Ideal for high-precision bearing manufacturing.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If for tool steel other than ball-bearing quality
If chromium exceeds 1.65% or other elements deviate, it becomes general tool steel under different subheading.
If considered bright bar with light polishing
Minimal polishing constitutes 'further worked' per chapter note, reclassifying to other worked bars.
If supplied in angles or shapes
Ball-bearing steel in angle/shape form falls under specific angles/shapes heading rather than bars/rods.
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Import Tips & Compliance
• Submit chemical analysis reports matching note (h) elements; GCr15 typically qualifies but needs verification
• Declare exact cold-rolling process; hot-rolled would classify under 7228.40
• Avoid common pitfall of mislabeling as 'stainless' which shifts to Chapter 72 stainless headings
Related Products under HTS 7228.50.10.10
AISI 52100 Ball-Bearing Steel Cold-Finished Round Bar
A cold-finished round bar made from AISI 52100 alloy steel, specifically formulated for ball-bearing applications with precise control of carbon (0.95-1.13%), chromium (1.25-1.65%), and low sulfur/phosphorus levels as defined in HTS Chapter 72 note (h). It is not further worked beyond cold-finishing, classifying it under 7228.50.1010 as a bar of ball-bearing steel. This steel provides exceptional hardness and wear resistance for bearing components.
SUJ2 Ball-Bearing Steel Cold-Drawn Hexagonal Rod
SUJ2 Japanese-grade ball-bearing steel rod, cold-drawn into hexagonal profile for use in bearing retainers and precision components, conforming to HTS Chapter 72 note (h) for carbon, chromium, and impurity controls. Falls under 7228.50.1010 as cold-finished tool steel rod of ball-bearing quality, not further worked. Provides superior fatigue resistance.
52100 Chrome Alloy Cold-Rolled Bearing Steel Strip
Narrow cold-rolled strip of 52100 chrome alloy ball-bearing steel used for precision bearing cages, meeting exact Chapter 72 note (h) composition limits for carbon (0.95-1.13%), Cr (1.25-1.65%), and minimal S/P. Classifies as 'bars and rods' under 7228.50.1010 when cold-finished without further working, even in strip form under 150mm width.
Ball-Bearing Quality Tool Steel Cold-Drawn Wire Rod
Cold-drawn wire rod of ball-bearing quality tool steel (per note h) for subsequent drawing into bearing wires or small-diameter bearing components. HTS 7228.50.1010 applies to these cold-finished rods/bars not further worked, distinguished by precise alloy control for bearing performance.
100Cr6 Ball-Bearing Steel Cold-Finished Square Bar
European 100Cr6 grade (EN 10027) cold-finished square bar of ball-bearing steel for manufacturing bearing balls and rollers, precisely matching US note (h) requirements for low impurities and balanced alloying. HTS 7228.50.1010 covers this as cold-formed tool steel bar of ball-bearing quality without further working. Excellent for high-load bearing applications.