AISI 4340 Alloy Steel Flat Bar
Hot-rolled flat bar of AISI 4340 nickel-chromium-molybdenum alloy steel, ideal for structural components and aircraft parts. Classified under HTS 7228.60.60.00 as other bars of alloy steel that are not cold-formed and do not qualify as tool steel or other specified types. Delivered in rectangular cross-sections without further cold working.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If further worked (polished or coated)
Chapter note defines 'further worked' products (polished, coated) as moving to 7228.70 from basic hot-rolled forms.
If semi-finished with rectangular cross-section >130mm
Semi-finished products larger than certain dimensions are classified in 7207, not as finished bars in 7228.
If higher chromium content qualifies as stainless
Alloy steels with specific high chromium levels are treated as stainless under heading 7224.
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Import Tips & Compliance
• Label shipments clearly as 'hot-rolled alloy steel bar' to differentiate from cold-drawn products and avoid duty reassessment
• Include chemical analysis reports showing elements like Ni 1.65-2%, Cr 0.4-0.8% to confirm 'other alloy steel' status
• Verify product not further worked (e.g
• no polishing/coating) as per chapter note, or it may shift to 7228.70
Related Products under HTS 7228.60.60.00
AISI 4140 Alloy Steel Round Bar
A hot-rolled round bar made from AISI 4140 chromium-molybdenum alloy steel, commonly used for shafts, gears, and axles in machinery. It falls under HTS 7228.60.60.00 as a non-cold-formed bar of other alloy steel, not meeting specific alloy steel definitions in chapter notes like tool steel or ball-bearing steel. The product is supplied in straight lengths without cold-forming processes.
17-4 PH Stainless Alloy Steel Round Bar
Precipitation-hardening 17-4 PH stainless alloy steel round bar, hot-rolled for aerospace fasteners and valves. Although containing 17% chromium, classified as 'other alloy steel' bar under 7228.60.60.00 when not cold-formed, distinguishing from basic stainless categories. Heat-treated condition H1150 standard.
HY-80 High-Yield Alloy Steel Bar
HY-80 quenched and tempered alloy steel bar for naval submarine hulls and pressure vessels. Classified in HTS 7228.60.60.00 as non-cold-formed other alloy steel bar, with Ni-Cr-Mo meeting high-strength requirements but not chapter-specific steels. Minimum yield strength 80 ksi.
AISI 52100 Alloy Steel Bar
Hot-rolled AISI 52100 chrome alloy steel bar for bearing races and components. Classified under HTS 7228.60.60.00 as non-cold-formed other alloy steel, though similar to ball-bearing steel specs but not exact match to note (h). High carbon-chromium content.
EN24 Alloy Steel Bright Bar
EN24 (4340 equivalent) alloy steel bar in bright drawn finish, but hot-rolled base form. HTS 7228.60.60.00 for non-cold-formed other alloy steel bars used in tooling and shafts. Chromium-molybdenum composition for high tensile strength.
AISI 4150 Alloy Steel Hexagonal Bar
Hot-rolled hexagonal bar of AISI 4150 chromium-molybdenum alloy steel for bolts and fasteners. Fits HTS 7228.60.60.00 as other non-cold-formed alloy steel bars with standard mill finish. Good for heat-treated structural applications.