Chapter 7205 — Customs Tariff Headings

Atomized Iron Granules 4-8mm

Water-atomized iron granules sized 4-8mm, composed of pure iron, used for heavy media separation in mineral processing. Their high density and uniform granular form make them suitable for density-based sorting applications.

Ferrous Alloy Granules

Granules of ferrous alloys, 1-4mm, used in specialty steel production for nitriding and surface hardening. These granules do not meet tool steel specifications and are classified as granules of iron or steel.

Iron Granules for Sintering

Atomized pure iron granules (3-10mm) for sintering in powder metallurgy to produce machine parts. These granules are not further worked beyond atomization, qualifying as granules of iron under this tariff item.

Low-Carbon Steel Granules

Granules of low-carbon steel (<0.25% carbon), sized 2-6mm, for remelting and alloying in secondary steel production. These granules do not meet high-strength or tool steel definitions and are classified as granules of steel.

Pig Iron Granules

Granules of pig iron, produced by atomization or crushing, used as a raw material in metal casting and steelmaking. These granules are distinct from powders due to their larger particle size and are classified under this item.

Spiegeleisen Granules

Granules of spiegeleisen, a high-manganese pig iron alloy used in steelmaking to add manganese content. Produced by crushing cast spiegeleisen into 2-8mm granules, these fall under the explicit scope of this tariff item.

Steel Granules 1-5mm

Granular steel particles sized 1-5mm, made from low-carbon steel scrap via granulation for use in powder metallurgy and sintering. These granules are not further worked and are classified as granules of steel.

17-4 PH Stainless Steel Powder

17-4 PH stainless steel powder is a precipitation-hardening alloy containing 17% chromium and 4% nickel, used in aerospace components via selective laser melting. It qualifies as an alloy steel powder under tariff item 7205.21.00 because it meets the stainless steel definition of at least 10.5% chromium by weight.

316L Stainless Steel Powder

316L stainless steel powder is a low-carbon austenitic alloy with 16-18% chromium and 10-14% nickel, used for corrosion-resistant implants and marine hardware. It falls under tariff item 7205.21.00 as an alloy steel powder, given its chromium content exceeds 10.5%.

AISI 4340 Alloy Steel Powder

AISI 4340 alloy steel powder is a nickel-chromium-molybdenum alloy used in additive manufacturing and metal injection molding. It qualifies as an alloy steel powder under tariff item 7205.21.00 because it contains alloying elements like nickel and chromium in sufficient proportions.

Ball-Bearing Steel Powder

Ball-bearing steel powder, SAE 52100, is a chrome alloy steel with 0.95-1.13% carbon and 1.25-1.65% chromium, used for rolling element bearings via powder metallurgy. It falls under tariff item 7205.21.00 as an alloy steel powder, given its chromium content exceeds 0.3%.

D2 Tool Steel Powder

D2 tool steel powder is a high-carbon, high-chromium alloy with over 1.2% carbon and over 10.5% chromium, used for cold-work dies and shear blades via PM-HIP. It qualifies as an alloy steel powder under tariff item 7205.21.00, meeting the stainless steel definition due to chromium content.

Heat-Resisting Steel Powder

Heat-resisting steel powder is an alloy steel with less than 0.3% carbon and 4-10.5% chromium, used for furnace components and heat exchangers. It falls under tariff item 7205.21.00 as an alloy steel powder, given its chromium content exceeds 0.3%.

High-Strength Low-Alloy Steel Powder

High-strength low-alloy (HSLA) steel powder contains niobium or vanadium microalloys, used in automotive structural parts. It qualifies as an alloy steel powder under tariff item 7205.21.00 because it contains alloying elements like niobium or vanadium in sufficient proportions.

Inconel 718 Alloy Steel Powder

Inconel 718 alloy steel powder is a nickel-chromium superalloy used in turbine blades and high-temperature aerospace parts. It falls under tariff item 7205.21.00 as an alloy steel powder, given its iron-base composition and chromium content exceeding 0.3%.

Maraging Steel Grade 250 Powder

Maraging steel grade 250 powder is an 18% nickel, cobalt, molybdenum alloy used for rocket motor cases and precision tooling. It qualifies as an alloy steel powder under tariff item 7205.21.00, given its iron base and alloying elements like nickel and cobalt.

Tool Steel H13 Powder

H13 hot-work tool steel powder is a chromium-molybdenum alloy used for die casting and forging tooling via powder metallurgy. It falls under tariff item 7205.21.00 as an alloy steel powder, given its chromium content exceeding 0.3% and other alloying elements.

Atomized Steel Powder for Sintered Brake Pads

Water-atomized low-alloy steel powder used in powder metallurgy for automotive brake pad production. This powder is classified as 'other' iron/steel powders under tariff item 7205.29.00, as it does not meet the definitions of high-strength or tool steel powders. It is a granular product of iron or steel, not further worked than atomized.

Carbonyl Iron Powder for Microwave Absorbers

Ultra-pure carbonyl iron powder with less than 0.1% impurities, used in radar-absorbing materials and magnetic composites. With a particle size of 3-10 microns, it provides high surface area for electromagnetic absorption. This powder is classified as 'other' iron powder under tariff item 7205.29.00, as it does not meet the definitions of alloy or stainless steel powders.

High-Purity Iron Powder for Magnetic Cores

High-purity iron powder at 99.9% purity, insulated with a phosphate coating for soft magnetic composite cores. Used in electric motor rotors and inductors requiring low hysteresis loss, with 100-200 micron particles post-compaction. This powder is classified as 'other' iron powder under tariff item 7205.29.00, as it is not an alloy steel powder.

Iron Powder for 3D Metal Printing

Finely milled iron powder used in selective laser sintering (SLS) for additive manufacturing of metal parts. This powder is classified as 'other' iron powder under tariff item 7205.29.00, as it does not meet specific alloy definitions in Chapter 72. It is a granular product of iron, not further worked than milling.

Iron Powder for Friction Materials

Copper-free iron powder for automotive friction plates and clutch facings, providing heat dissipation and wear resistance in wet clutch applications. This powder has a controlled particle size distribution for uniform mixing and is classified as 'other' iron powder under tariff item 7205.29.00. It is not an alloy steel powder.

Iron Powder for Powder Metallurgy Gears

Commercially pure iron powder for press-and-sinter gear production in automotive transmissions, with a density of 6.8-7.2 g/cc after sintering and annealed for machinability. This powder is classified as 'other' iron powder under tariff item 7205.29.00, as it is not an alloy steel powder. It is available in standard -100/+325 mesh size.

Reduced Iron Powder for Welding Electrodes

Hydrogen-reduced iron powder serving as a flux carrier in coated welding electrodes, with high purity (>99% Fe) and spherical morphology from the reduction process. This powder is classified as 'other' iron powder under tariff item 7205.29.00, with a particle size range of 45-150 microns. It is not an alloy steel powder.

Spiegeleisen Powder for Specialty Castings

High-manganese spiegeleisen powder used as a master alloy addition in ductile iron foundries, containing 20-30% Mn and 4-6% C, fitting the spiegeleisen definition. Ground to 100-200 microns for injection molding into ladles, this powder is classified as 'other' powder under tariff item 7205.29.00, as it is a powder of spiegeleisen.

Steel Powder for Thermal Spray Coatings

Low-carbon steel powder for HVOF thermal spray restoration of wear parts, with irregular morphology from crushing and a 15-45 micron size for optimal coating density. This powder is classified as 'other' steel powder under tariff item 7205.29.00, as it is not an alloy steel powder. It provides corrosion and wear resistance on industrial components.