What is the typical U.S. duty rate for Chapter 73 imports?

General (Column 1) duty rates for ad-valorem lines range from 1.5% to 12.5% (median 4.3%); roughly 78% of lines enter duty-free. Use the calculator linked from each code page to compute the full landed rate, including Section 301/232 overlays, IEEPA tariffs, and AD/CVD deposits where applicable.

Are Section 301 or Section 232 tariffs applied to Chapter 73 products?

Section 301 (China) and Section 232 (steel, aluminum, copper) tariffs are layered on top of the base HTSUS rate via Chapter 99 provisions. Whether they apply to a specific 10-digit line in Chapter 73 depends on the product's country of origin, material content, and the active proclamation. Open any code in this chapter to see the live overlay stack and effective rate.

Are there antidumping or countervailing duty (AD/CVD) orders covering Chapter 73 products?

AD/CVD orders are issued at the case level by the Department of Commerce against specific products from specific countries. Tandom's AD/CVD catalog cross-references every active order to the HTS codes it covers — open any code in Chapter 73 to see flagged orders, deposit rates, and the underlying scope determinations.

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Section XV: Base Metals and Articles of Base Metal

Chapter 73: Articles of iron or steel

Q: What does HTS Chapter 73 cover?

Chapter 73 of the U.S. Harmonized Tariff Schedule (HTSUS) covers Articles of iron or steel. It sits within Section XV: Base Metals and Articles of Base Metal. Tandom's catalog lists all 573 10-digit statistical lines and 20 4-digit headings in this chapter.

Chapter 73 of the U.S. Harmonized Tariff Schedule covers Articles of iron or steel and sits within Section XV: Base Metals and Articles of Base Metal.

About Chapter 73

Chapter 73 contains 573 10-digit statistical lines grouped under 20 4-digit headings. Brokers, importers, and customs counsel use these codes to declare articles of iron or steel on entry summaries (CBP Form 7501) and to look up the applicable Column 1, Special, and Column 2 duty rates.

General (Column 1) duty rates for ad-valorem lines in Chapter 73 range from 1.5% to 12.5%, with a median of 4.3%. About 76% of the chapter's lines (438 of 573) enter duty-free under the general rate. Special-program rates (USMCA, KORUS, GSP, AGOA, and others) and Chapter 99 overlays modify these base rates for qualifying shipments.

Every code page links into the Tandom Tariff Calculator with the HTS code prefilled, so you can compute the full landed duty for a specific shipment by entering value, country of origin, and (where relevant) material content or date of entry. Tandom's data refreshes daily from USITC HTSUS, CBP CSMS, the Federal Register, and the Department of Commerce — the same authoritative sources the trade community files against.

Code	Description	General	Column 2	Special	Units
7301.10.00.00	Sheet piling	Free	2%	—	kg
7301.20	Angles, shapes and sections:	—	—	—	—
7301.20.10.00	·Of iron or nonalloy steel	Free	20%	—	kg
7301.20.50.00	·Of alloy steel	Free	28%	—	kg

Code	Description	General	Column 2	Special	Units
7303.00.00	Tubes, pipes and hollow profiles, of cast iron	Free	33%	—	—
7303.00.00.30	Soil pipe	—	—	—

Code	Description	General	Column 2	Special	Units
7304.11.00	·Of stainless steel	Free	35%	—	—
7304.11.00.20	··Having an outside diameter not exceeding 114.3 mm	Free

Code	Description	General	Column 2	Special	Units
7305.11	·Longitudinally submerged arc welded:	—	—	—	—
7305.11.10	··Of iron or nonalloy steel	Free

Code	Description	General	Column 2	Special	Units
7306.11.00	·Welded, of stainless steel	Free	10%	—	—
7306.11.00.10	··With an outside diameter not exceeding 114.3 mm	Free

Chapter 73: Articles of iron or steel

Exclusions from Section XV

Parts of General Use

Classification of Composite Articles

Alloy Classification Rules

Iron vs. Nonalloy Steel vs. Stainless

Scope of Chapter 73

Welded vs. Seamless Distinction

Tube or Pipe Fittings — Scope

Machined vs. Not Machined After Forging

`7301`Sheet piling of iron or steel, whether or not drilled, punched or made from assembled elements; welded angles, shapes and sections, of iron or steel:

`7303`

`7304`Tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or steel:

`7305`Other tubes and pipes (for example, welded, riveted or similarly closed), having circular cross sections, the external diameter of which exceeds 406.4 mm, of iron or steel:

`7306`Other tubes, pipes and hollow profiles (for example, open seamed or welded, riveted or similarly closed), of iron or steel:

`7307`Tube or pipe fittings (for example, couplings, elbows, sleeves), of iron or steel:

`7309`

`7310`Tanks, casks, drums, cans, boxes and similar containers, for any material (other than compressed or liquefied gas), of iron or steel, of a capacity not exceeding 300 liters, whether or not lined or heat insulated, but not fitted with mechanical or thermal equipment:

`7311`

`7312`Stranded wire, ropes, cables, plaited bands, slings and the like, of iron or steel, not electrically insulated:

`7313`Barbed wire of iron or steel; twisted hoop or single flat wire, barbed or not, and loosely twisted double wire, of a kind used for fencing, of iron or steel

`7314`Cloth (including endless bands), grill, netting and fencing, of iron or steel wire; expanded metal of iron or steel:

`7315`Chain and parts thereof, of iron or steel:

`7316`Anchors, grapnels and parts thereof, of iron or steel

`7317`

`7318`Screws, bolts, nuts, coach screws, screw hooks, rivets, cotters, cotter pins, washers (including spring washers) and similar articles, of iron or steel:

`7319`Sewing needles, knitting needles, bodkins, crochet hooks, embroidery stilettos and similar articles for use in the hand, of iron or steel; safety pins and other pins of iron or steel, not elsewhere specified or included:

`7320`Springs and leaves for springs, of iron or steel:

`7321`Stoves, ranges, grates, cookers (including those with subsidiary boilers for central heating), barbecues, braziers, gas rings, plate warmers and similar nonelectric domestic appliances, and parts thereof, of iron or steel:

`7323`Table, kitchen or other household articles and parts thereof, of iron or steel; iron or steel wool; pot scourers and scouring or polishing pads, gloves and the like, of iron or steel:

`7324`Sanitary ware and parts thereof, of iron or steel:

`7325`Other cast articles of iron or steel:

`7326`Other articles of iron or steel:

Frequently asked questions

What does HTS Chapter 73 cover?

What is the typical U.S. duty rate for Chapter 73 imports?

Are Section 301 or Section 232 tariffs applied to Chapter 73 products?

Are there antidumping or countervailing duty (AD/CVD) orders covering Chapter 73 products?

Code	Description	General	Column 2	Special	Units
7302.10	Rails:	—	—	—	—
7302.10.10	·Of iron or nonalloy steel

Code	Description	General	Column 2	Special	Units
7307.11.00	·Of nonmalleable cast iron	4.8%	25%	Free (A*,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)	—
7307.11.00.30	··For threaded pipe	4.8%

Code	Description	General	Column 2	Special	Units
7308.10.00.00	Bridges and bridge sections	Free	45%	—	kg
7308.20.00	Towers and lattice masts

Code	Description	General	Column 2	Special	Units
7309.00.00	Reservoirs, tanks, vats and similar containers for any material (other than compressed or liquefied gas), of iron or steel, of a capacity exceeding 300 liters, whether or not lined or heat insulated, but not fitted with mechanical or thermal equipment	Free	45%	—	—
7309.00.00.30	Tanks	—

Code	Description	General	Column 2	Special	Units
7310.10.00	Of a capacity of 50 liters or more	Free	25%	—	—
7310.10.00.05	·Refillable stainless steel kegs, whether or not pressurized, of a kind described in statistical note 1 to this chapter.

Code	Description	General	Column 2	Special	Units
7311.00.00	Containers for compressed or liquefied gas, of iron or steel	Free	25%	—	—
7311.00.00.30	·Seamless steel containers not overwrapped, marked DOT 3A, 3AX, 3AA, 3AAX, 3B, 3E, 3HT, 3T or DOT-E followed by a specific exemption number

Code	Description	General	Column 2	Special	Units
7312.10	Stranded wire, ropes and cables:	—	—	—	—
7312.10.05.00	···Fitted with fittings or made up into articles	Free

Code	Description	General	Column 2	Special	Units
7314.12	·Endless bands for machinery, of stainless steel:	—	—	—	—
7314.12.10.00	··With meshes not finer than 12 wires to the lineal centimeter in warp or filling

Code	Description	General	Column 2	Special	Units
7315.11.00	·Roller chain	Free	40%	—	—
7315.11.00.05	··For motor vehicles	Free	40%

Code	Description	General	Column 2	Special	Units
7317.00	Nails, tacks, drawing pins, corrugated nails, staples (other than those of heading 8305) and similar articles, of iron or steel, whether or not with heads of other material, but excluding such articles with heads of copper:	—	—	—	—
7317.00.10.00	Thumb tacks	Free

Code	Description	General	Column 2	Special	Units
7318.11.00.00	·Coach screws	12.5%	25%	Free (A+,AU,B,BH,CL,CO,D,E,IL, JO,KR,MA, OM,P,PA,PE,S,SG)	kg
7318.12.00.00	·Other wood screws	12.5%

Code	Description	General	Column 2	Special	Units
7319.40	Safety pins and other pins:	—	—	—	—
7319.40.20	·Safety pins	4.5%

Code	Description	General	Column 2	Special	Units
7320.10	Leaf springs and leaves therefor:	—	—	—	—
7320.10.30.00	··To be used in motor vehicles having a G.V.W. not exceeding 4 metric tons	3.2%

Code	Description	General	Column 2	Special	Units
7321.11	·For gas fuel or for both gas and other fuels:	—	—	—	—
7321.11.10	··Portable

Code	Description	General	Column 2	Special	Units
7322.11.00.00	·Of cast iron	Free	45%	—	No.
7322.19.00.00	·Other

Code	Description	General	Column 2	Special	Units
7323.10.00.00	Iron or steel wool; pot scourers and scouring or polishing pads, gloves and the like	Free	22¢/kg + 30%	—	kg
7323.91	·Of cast iron, not enameled:

Code	Description	General	Column 2	Special	Units
7324.10.00	Sinks and wash basins, of stainless steel	3.4%	40%	Free (A*,AU,BH,C,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)	—
7324.10.00.10	·Stainless steel sinks with one or more drawn bowls (basins)	3.4%

Code	Description	General	Column 2	Special	Units
7325.10.00	Of nonmalleable cast iron	Free	10%	—	—
7325.10.00.10	·Manhole covers, rings and frames	Free	10%

Code	Description	General	Column 2	Special	Units
7326.11.00.00	·Grinding balls and similar articles for mills	Free	27.5%	—	kg
7326.19.00	·Other	2.9%	45%

Exclusions from Section XV

Parts of General Use

Classification of Composite Articles

Alloy Classification Rules

Iron vs. Nonalloy Steel vs. Stainless

Scope of Chapter 73

Welded vs. Seamless Distinction

Tube or Pipe Fittings — Scope

Machined vs. Not Machined After Forging

7301Sheet piling of iron or steel, whether or not drilled, punched or made from assembled elements; welded angles, shapes and sections, of iron or steel:

7303

7304Tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or steel:

7305Other tubes and pipes (for example, welded, riveted or similarly closed), having circular cross sections, the external diameter of which exceeds 406.4 mm, of iron or steel:

7306Other tubes, pipes and hollow profiles (for example, open seamed or welded, riveted or similarly closed), of iron or steel:

7307Tube or pipe fittings (for example, couplings, elbows, sleeves), of iron or steel:

7309

7310Tanks, casks, drums, cans, boxes and similar containers, for any material (other than compressed or liquefied gas), of iron or steel, of a capacity not exceeding 300 liters, whether or not lined or heat insulated, but not fitted with mechanical or thermal equipment:

7311

7312Stranded wire, ropes, cables, plaited bands, slings and the like, of iron or steel, not electrically insulated:

7313Barbed wire of iron or steel; twisted hoop or single flat wire, barbed or not, and loosely twisted double wire, of a kind used for fencing, of iron or steel

7314Cloth (including endless bands), grill, netting and fencing, of iron or steel wire; expanded metal of iron or steel:

7315Chain and parts thereof, of iron or steel:

7316Anchors, grapnels and parts thereof, of iron or steel

7317

7318Screws, bolts, nuts, coach screws, screw hooks, rivets, cotters, cotter pins, washers (including spring washers) and similar articles, of iron or steel:

7319Sewing needles, knitting needles, bodkins, crochet hooks, embroidery stilettos and similar articles for use in the hand, of iron or steel; safety pins and other pins of iron or steel, not elsewhere specified or included:

7320Springs and leaves for springs, of iron or steel:

7321Stoves, ranges, grates, cookers (including those with subsidiary boilers for central heating), barbecues, braziers, gas rings, plate warmers and similar nonelectric domestic appliances, and parts thereof, of iron or steel:

7323Table, kitchen or other household articles and parts thereof, of iron or steel; iron or steel wool; pot scourers and scouring or polishing pads, gloves and the like, of iron or steel:

7324Sanitary ware and parts thereof, of iron or steel:

7325Other cast articles of iron or steel:

7326Other articles of iron or steel:

Frequently asked questions

What does HTS Chapter 73 cover?

What is the typical U.S. duty rate for Chapter 73 imports?

Are Section 301 or Section 232 tariffs applied to Chapter 73 products?

Are there antidumping or countervailing duty (AD/CVD) orders covering Chapter 73 products?

`7301`Sheet piling of iron or steel, whether or not drilled, punched or made from assembled elements; welded angles, shapes and sections, of iron or steel:

`7303`

`7304`Tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or steel:

`7305`Other tubes and pipes (for example, welded, riveted or similarly closed), having circular cross sections, the external diameter of which exceeds 406.4 mm, of iron or steel:

`7306`Other tubes, pipes and hollow profiles (for example, open seamed or welded, riveted or similarly closed), of iron or steel:

`7307`Tube or pipe fittings (for example, couplings, elbows, sleeves), of iron or steel:

`7309`

`7310`Tanks, casks, drums, cans, boxes and similar containers, for any material (other than compressed or liquefied gas), of iron or steel, of a capacity not exceeding 300 liters, whether or not lined or heat insulated, but not fitted with mechanical or thermal equipment:

`7311`

`7312`Stranded wire, ropes, cables, plaited bands, slings and the like, of iron or steel, not electrically insulated:

`7313`Barbed wire of iron or steel; twisted hoop or single flat wire, barbed or not, and loosely twisted double wire, of a kind used for fencing, of iron or steel

`7314`Cloth (including endless bands), grill, netting and fencing, of iron or steel wire; expanded metal of iron or steel:

`7315`Chain and parts thereof, of iron or steel:

`7316`Anchors, grapnels and parts thereof, of iron or steel

`7317`

`7318`Screws, bolts, nuts, coach screws, screw hooks, rivets, cotters, cotter pins, washers (including spring washers) and similar articles, of iron or steel:

`7319`Sewing needles, knitting needles, bodkins, crochet hooks, embroidery stilettos and similar articles for use in the hand, of iron or steel; safety pins and other pins of iron or steel, not elsewhere specified or included:

`7320`Springs and leaves for springs, of iron or steel:

`7321`Stoves, ranges, grates, cookers (including those with subsidiary boilers for central heating), barbecues, braziers, gas rings, plate warmers and similar nonelectric domestic appliances, and parts thereof, of iron or steel:

`7323`Table, kitchen or other household articles and parts thereof, of iron or steel; iron or steel wool; pot scourers and scouring or polishing pads, gloves and the like, of iron or steel:

`7324`Sanitary ware and parts thereof, of iron or steel:

`7325`Other cast articles of iron or steel:

`7326`Other articles of iron or steel: