Duplex Stainless Steel Rectangular Tubing 100x50mm 3mm
High-strength duplex stainless steel (e.g., 2205) welded rectangular tubing 100x50mm with 3mm wall thickness, under HTS 7306.61.70.30 as stainless alloy noncircular profile. Suited for offshore platforms.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If seamless and for boilers
Seamless stainless tubes for high-pressure boilers use 7305, excluding welded.
If Fittings-added tubes become tube fittings under 7307.
If under 16mm diameter equivalent
Smaller thin-walled stainless tubes may classify as studs/bolts if similar form.
Not sure which classification is right?
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Import Tips & Compliance
• Certify duplex grade with PREN values >40 to distinguish from standard stainless
• Provide hydrostatic test reports for pressure-rated applications
• Watch for quota restrictions on certain stainless imports
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