HS Code for Carbon steel welding fittings

Carbon steel welding fittings, specifically butt-welding types, are classified under HS code 7307.93. This classification is determined by the fitting's end preparation and its material. Heading 7307 covers tube or pipe fittings of iron or steel. Within this heading, the subheadings are organized to distinguish between cast and non-cast items, and then by material type. Subheading 7307.93 is specifically dedicated to butt-welding fittings made of iron or steel other than stainless steel. Butt-welding fittings are characterized by ends that are beveled to allow for a full-penetration weld to the pipe. This method of connection is preferred in high-pressure and high-temperature applications because it creates a leak-proof, continuous metal structure. The classification includes a variety of shapes such as 45-degree and 90-degree elbows, equal and reducing tees, concentric and eccentric reducers, and pipe caps. To fall under this code, the material must be carbon steel (non-alloy steel) or other alloy steel that does not meet the chromium requirements of stainless steel. The manufacturing of these fittings typically follows standards like ASME B16.9.

Products Included

• Carbon steel butt-weld elbows (45 and 90 degree)
• Butt-weld tees and crosses (non-stainless)
• Concentric and eccentric carbon steel reducers
• Butt-weld pipe caps
• Long radius and short radius bends (butt-weld)

Common Misclassification

A frequent misclassification occurs with 7307.23, which is the code for stainless steel butt-welding fittings. The distinction is based on the alloy content defined in Chapter 72. Another common error is confusing butt-welding fittings with threaded fittings, which belong under 7307.92. Socket-weld fittings, which are also welded but involve inserting the pipe into a recessed area, are often incorrectly placed here; they should generally be in 7307.99. Finally, cast iron welding fittings should be classified under 7307.11 or 7307.19.

FAQ

What is the HS code for Carbon steel welding fittings?

The HS code for butt-welding fittings made of iron or non-alloy steel is 7307.93.

What is the difference between 7307.93 and 7307.92?

7307.93 is for butt-welding fittings (beveled ends), while 7307.92 is specifically for threaded elbows and bends.