Alloy Steel Exhaust Tubing 3-inch OD
Welded circular tubing of heat-resistant alloy steel, 3-inch outer diameter, wall ≥1.65 mm, for automotive and industrial exhaust systems. Classified in HTS 7306.50.50 as 'other' welded thick-walled alloy steel tubes, suitable for high-temperature gas conveyance.
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More Specific Codes
This product may fall under a more specific subheading:
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If seamless exhaust grade
Seamless versions for extreme heat are under 7304 alloy seamless tubes.
If imported as part of vehicle exhaust system set
Vehicle-specific exhaust parts classify under Chapter 87 motor vehicle parts.
If threaded or with mechanical joints
Tube fittings or pipe fittings shift to heading 7307.
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Import Tips & Compliance
• Include SAE or ASTM specs showing corrosion resistance for alloy verification
• Separate from manifolds; plain tubes remain Chapter 73, assemblies go to 87 or 84
• Watch for AD/CVD on specific alloy grades from China or other origins
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