Cold-Finished 52100 Alloy Steel Bar
52100 chrome alloy steel bar, cold-finished 65 mm diameter for roller bearings. HTS 7228.50.5015 for cold-finished alloy steel bars <76 mm. High-carbon chromium bearing steel approaching ball-bearing note composition.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If exact ball-bearing steel
Note (h) precise composition for bearing applications takes precedence.
If non-alloy high-carbon
Insufficient Cr for alloy status moves to concrete reinforcing/other.
If hot-rolled bearing quality
Same chemistry hot-rolled classified differently.
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Import Tips & Compliance
• Include hardness specification (58-65 HRC after heat treatment)
• Certify cleanness level (oxygen/sulfur inclusion ratings)
• Distinguish from razor blade steel (note d - too thick/wide)
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