Cold-Rolled Seamless Steel DOM Tubing
Drawn Over Mandrel (DOM) tubing is a cold-rolled seamless mechanical tube of nonalloy steel, typically 1.5-inch OD x 0.12-inch wall, used in automotive shock absorbers and machinery shafts. Classified under HTS 7304.31.60.50 for its cold-formed circular cross section and seamless nonalloy steel construction. The DOM process provides superior concentricity and surface finish.
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 alloy steel
Alloy content exceeds nonalloy limits, moving to 7304.5 then welded equivalent.
If hot-finished instead of cold-drawn
Hot-rolled/finished seamless tubes classify under 7304.39, not cold-formed.
If precision-finished for valves/pumps
Highly machined for specific machinery use shifts to Chapter 84 tap/Valve heading.
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Import Tips & Compliance
• Provide DOM process certification; distinguishes from welded ERW tubing under 7306
• Measure cross-section dimensions—must be circular and under relevant limits for Chapter 73
• Avoid declaring as 'shock absorber tube' to prevent shift to 8708.80 parts classification
Related Products under HTS 7304.31.60.50
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