AISI 4130 Chromoly Steel Round Bloom
Cylindrical bloom of AISI 4130 chromium-molybdenum steel for aircraft tubing. Under HTS 7224.90.0075 as other alloy semi-finished, excluding high-strength or tool steel categories per U.S. notes.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If meets high-strength steel yield criteria
U.S. note (a) applies for yield point >=355 MPa at >=3mm thickness.
If ingot form only
Pure ingots or primary forms before any rolling into blooms.
If made into seamless tubes
Finished into tubes/pipes of iron/steel after further processing.
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Import Tips & Compliance
• Declare mechanical properties if borderline high-strength; use commercial invoice with detailed specs; prepare for CBP lab testing on alloy content
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AISI 4140 Alloy Steel Round Billet
A hot-rolled round billet made from AISI 4140 chromium-molybdenum alloy steel, used for manufacturing shafts and gears. Classified under HTS 7224.90.0075 as a semi-finished product of other alloy steel in primary forms, not meeting specific alloy definitions like tool steel or high-strength steel. It is further worked through hot rolling but remains in billet form prior to final forging.
AISI 4340 Nickel-Chromium-Molybdenum Steel Slab
Flat-rolled slab of AISI 4340 alloy steel containing nickel, chromium, and molybdenum, primarily for aerospace components. Falls under HTS 7224.90.0075 as other semi-finished alloy steel products not qualifying as universal mill plate or other specified types. It is in primary form suitable for further hot working.
17-4 PH Precipitation Hardening Stainless Steel Bloom
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AISI 8620 Carburizing Alloy Steel Billet
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