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.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If made of stainless steel
Stainless steels (with 4%+ chromium) are classified in Chapter 72 heading 7224, separate from other alloy steels.
If cold-formed after hot-rolling
Cold-formed bars and rods of alloy steel fall under 7228.30, while hot-rolled or forged remain in 7228.60.
If concrete reinforcing bar with ribs/grooves
Per U.S. note (c), deformed reinforcing bars are specifically classified under 7214, regardless of alloy content.
Not sure which classification is right?
Our AI classifier can analyze your specific product and recommend the correct HTS code with confidence.
Import Tips & Compliance
• Provide mill test certificates confirming alloy composition to verify classification under 'other alloy steel' and avoid reclassification as tool steel
• Ensure documentation specifies hot-rolled or forged production method to distinguish from cold-formed products under different subheadings
• Check for minimum alloying elements (e.g
• chromium >0.9%, molybdenum) as per HTS Chapter 72 definitions to prevent misclassification
Related Products under HTS 7228.60.60.00
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.
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.