Industrial Chipper Steel Square Bar
Square cross-section hot-drawn bars of certified chipper knife steel for manufacturing industrial shredder and chipper knives. Alloy meets note (f) requirements including 7.25-8.75% Cr and 1.25-1.75% Mo. HTS 7228.30.4000 applies to non-cold-formed tool steel shapes.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If other further worked than hot-rolled
Cold-finished or ground surface treatment moves to further worked category.
If concrete reinforcing type per note (c)
Deformations/ribs for concrete classify under 7213 bars, not tool steel.
If ball-bearing steel per note (h)
Specific C/Cr/Si specs for bearings shift from chipper knife classification.
Not sure which classification is right?
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Import Tips & Compliance
• Use EN/ISO 4957 certification format proving chipper knife steel specs for CBP review
• Separate from tool steel coils which go to 7228.20; ensure straight bar format
Related Products under HTS 7228.30.40.00
Forestry Chipper Knife Steel Rod
Hot-extruded rods of chipper knife steel optimized for forestry mulching and chipping equipment blades, with vanadium content 0.2-0.55% for wear resistance. Not cold-formed per HTS requirements. Falls under 7228.30.4000 for other alloy tool steel bars.
Heavy Duty Chipper Steel Bright Bar
Hot-rolled bright finish bars of chipper knife steel per note (f), with controlled 0.48-0.55% C for edge retention in heavy-duty chippers. Not cold-formed but may have light scale removal without further working. HTS 7228.30.4000 specific for this tool steel.
Biomass Chipper Steel Bar Stock
Bar stock of chipper knife steel for biomass processing shredders, featuring 7.25-8.75% chromium for corrosion resistance in wet materials. Hot-drawn, not cold-formed, straight lengths. Precisely matches HTS 7228.30.4000 tool steel criteria.
Recycling Chipper Knife Steel Rod
Hot-rolled rods of chipper knife steel for tire/metal recycling chippers, with molybdenum 1.25-1.75% for toughness. Not cold-formed, supplied decaled but not polished. HTS 7228.30.4000 for chipper knife tool steel bars/rods.
Mulcher Chipper Steel Flat Stock
Flat stock bars of certified chipper knife steel for mulcher flail knives, silicon 0.75-1.05% for deoxidation. Hot-rolled only, not cold-formed per HTS. Specific 7228.30.4000 classification for this alloy tool steel.
Chipper Knife Steel Flat Bar
Hot-rolled flat bars made from chipper knife steel, containing 0.48-0.55% carbon, 7.25-8.75% chromium, and 1.25-1.75% molybdenum as per HTS Chapter 72 note (f). Not cold-formed and not further worked beyond hot-rolling. Used primarily for manufacturing wood chipper knives and industrial cutting blades.