Constantan CuNi Wire Rod
Constantan (55Cu-45Ni) wire rod for thermocouples. Copper-nickel base, 7407.29.40.00 if rod form.
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Related Products under HTS 7407.29.40.00
Cupro-Nickel 90/10 Round Rod
A solid round rod made from 90% copper and 10% nickel alloy (cupro-nickel), used in marine and desalination applications for its excellent corrosion resistance. This falls under HTS 7407.29.40.00 as it is a bar/rod of copper-nickel base alloy where nickel predominates over other elements except copper. Meets subheading note (d) for copper-nickel base alloys with less than 1% zinc.
Nickel Silver C75200 Flat Bar
Flat bar of nickel silver alloy C75200 (Cu 65%, Zn 17%, Ni 18%), used in hardware, musical instruments, and decorative items for its tarnish resistance. Classified under HTS 7407.29.40.00 as copper-nickel-zinc base alloy (nickel silver) with nickel ≥5%. Complies with subheading note (c).
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Hexagonal rod of 70/30 cupro-nickel (70% Cu, 30% Ni), ideal for heat exchanger components and valve stems due to high strength and corrosion resistance. HTS 7407.29.40.00 covers copper-nickel base alloy bars/rods per note (d); zinc absent.
Monel 400 Round Bar
Round bar of Monel 400 (Cu ~67%, Ni ~33%, Fe/Mn trace), a copper-nickel base alloy for chemical processing equipment. HTS 7407.29.40.00 applies per note (d): nickel predominates other elements, zinc ≤1%.
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