CPM-M4 Tool Steel Polished Round 8mm
CPM-M4 powder metallurgy tool steel (1.4% C, 4% Cr, 4% V, 4% Mo) 8mm round bar with polished finish for high-wear applications. HTS 7228.50.10.20 covers such small-diameter tool steel with specified surface treatments.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If maximum cross-section 18mm or over but under 53mm
Larger diameter tool steel bars use sequential statistical breakout
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Import Tips & Compliance
• PM tool steels need detailed alloy cert meeting note (e) criteria
• Polish brightness/roughness specs required
• Common error: confusing with high-speed steel due to vanadium
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