Chapter 7507 — Customs Tariff Headings

Nickel 45 Degree Elbow 3-inch

A 45-degree elbow fitting made from pure, non-alloyed nickel, designed for directional changes in acid recovery piping systems. Its seamless construction ensures high corrosion resistance and durability in aggressive chemical environments, qualifying it as a tube or pipe fitting of nickel, not alloyed.

Nickel Elbow Fitting 90 Degree 1.5-inch

A 90-degree elbow pipe fitting forged from pure, non-alloyed nickel, used to connect nickel piping in caustic soda production lines. Its seamless design and high purity make it suitable for corrosive environments, classifying it as a tube or pipe fitting of nickel, not alloyed.

Nickel Seamless Cap End Fitting 4-inch

A seamless end cap fitting for 4-inch pure nickel pipes, used to terminate tubing in electroplating baths. Made from non-alloyed nickel, it serves as a tube or pipe fitting (e.g., a cap) under tariff item 7507.11.00, offering high purity and corrosion resistance.

Nickel Tube 0.5-inch OD Thin Wall

A thin-wall seamless nickel tube with 0.5-inch outer diameter and 0.035-inch wall, used for instrumentation in aerospace fuel systems. Made from pure, non-alloyed nickel, it qualifies as a tube under tariff item 7507.11.00, offering excellent formability and corrosion resistance.

Pure Nickel Coupling Sleeve 2-inch ID

A threaded coupling sleeve with 2-inch inner diameter made from pure nickel, used for joining pipe sections in desalination plants. As a coupling fitting of non-alloyed nickel, it falls under tariff item 7507.11.00, providing resistance to chloride corrosion.

Pure Nickel Instrumentation Tube 1/4-inch

A 1/4-inch outer diameter pure nickel tube for pressure gauges and sensors in offshore platforms. This thin-wall instrumentation tube, made of non-alloyed nickel, is classified under tariff item 7507.11.00 as a tube, offering high precision and corrosion resistance.

Pure Nickel Pipe 6-inch Schedule 10S

A Schedule 10S welded pure nickel pipe with 6-inch diameter, used for large-scale chlorine handling systems. Made from non-alloyed nickel, it qualifies as a pipe under tariff item 7507.11.00, optimized for thin walls in low-pressure applications.

Pure Nickel Reducing Tee Pipe Fitting 3x2 inch

A reducing tee pipe fitting (3-inch to 2-inch) machined from unalloyed nickel, used for branching corrosive gas lines in battery manufacturing. As a tee fitting of non-alloyed nickel, it falls under tariff item 7507.11.00, ensuring high corrosion resistance.

Pure Nickel Seamless Tube 1-inch OD

A seamless tube made from 99.9% pure nickel, not alloyed, with 1-inch outer diameter, used in chemical processing equipment. It falls under tariff item 7507.11.00 as a tube of nickel, not alloyed, designed for high-corrosion resistance.

Pure Nickel Welded Pipe Schedule 40 2-inch

A Schedule 40 welded pipe constructed from unalloyed nickel, 2-inch nominal size, ideal for handling corrosive fluids in pharmaceutical plants. Classified under tariff item 7507.11.00 due to its nickel composition (not alloyed), it serves as a pipe in corrosive environments.

Alloy 20 Nickel Pipe

Schedule 40 pipe made from Carpenter 20Cb-3, a nickel-iron-chromium alloy with nickel predominating by weight. It is designed for handling sulfuric acid in chemical processing and qualifies as a tube or pipe of nickel alloy under tariff item 7507.12.00.

C-22 Hastelloy Pipe

Hastelloy C-22 pipe, a nickel-chromium-molybdenum-tungsten alloy, is used in flue gas desulfurization and pulp bleaching. It is a tube or pipe of nickel alloy, with nickel as the predominant element, and is correctly classified under tariff item 7507.12.00.

Hastelloy C-276 Welded Tube

Welded tubing made from Hastelloy C-276, a nickel-molybdenum-chromium alloy, used for highly corrosive acids in pharmaceutical and pollution control equipment. It is a tube of nickel alloy, classified under tariff item 7507.12.00.

Incoloy 825 Welded Pipe

Welded pipe from Incoloy 825, a nickel-iron-chromium alloy with molybdenum and copper, used in oil and gas sour service. Nickel predominates by weight, making it a nickel alloy pipe under tariff item 7507.12.00.

Inconel 625 Seamless Pipe

Seamless pipe made from Inconel 625, a nickel-chromium-molybdenum alloy, designed for extreme corrosion resistance in chemical processing and aerospace. It is a nickel alloy pipe, classified under tariff item 7507.12.00.

Monel 400 Seamless Tube

Seamless tube from Monel 400, a nickel-copper alloy with nickel predominating by weight, used in marine engineering and desalination for seawater resistance. It is a nickel alloy tube under tariff item 7507.12.00.

Nickel 200 Seamless Tube

Commercially pure Nickel 200 seamless tubing, containing at least 99% nickel plus cobalt, used in food processing and electronics. It is a tube of nickel, not alloyed, and falls under tariff item 7507.12.00 as a nickel alloy tube, but note that unalloyed nickel tubes are classified under 7507.11.00.

Nickel 45-Degree Tee Pipe Fitting

A nickel tee fitting with a 45-degree branch, designed for branching nickel tubing in aerospace fuel lines. It is a tube or pipe fitting made of nickel, falling under tariff item 7507.20.00.

Nickel Cross Pipe Fitting 1-inch

A four-way nickel cross fitting for multi-directional nickel tube connections in pharmaceutical processing equipment. It is a tube or pipe fitting made of nickel, classified under tariff item 7507.20.00.

Nickel Elbow Pipe Fitting 2-inch

A 90-degree elbow fitting made from nickel alloy, used to connect nickel pipes at angled turns in high-corrosion environments like chemical processing plants. It is a tube or pipe fitting, classified under tariff item 7507.20.00.

Nickel Flange Adapter Fitting

Nickel weld neck flange adapter for transitioning threaded pipe to flanged nickel connections in refinery service. It is a tube or pipe fitting made of nickel, classified under tariff item 7507.20.00.

Nickel Hex Bushing Reducer

Hexagonal nickel bushing that reduces female NPT threads for nickel pipe transitions in power plant steam lines. It is a tube or pipe fitting made of nickel, classified under tariff item 7507.20.00.

Nickel Lateral Pipe Fitting

A 45-degree nickel lateral wye fitting for main-to-branch pipe connections in mining slurry lines. It is a tube or pipe fitting made of nickel, classified under tariff item 7507.20.00.

Nickel Pipe Coupling Sleeve

Plain end nickel sleeve coupling for socket weld joints in nuclear reactor coolant piping. It is a tube or pipe fitting made of nickel, classified under tariff item 7507.20.00.

Nickel Pipe Nipple 6-inch

Short-length close nickel pipe nipple with dual threads for spacing pipe fittings in boiler feedwater systems. It is a tube or pipe fitting made of nickel, classified under tariff item 7507.20.00.

Nickel Pipe Plug Fitting 4-inch

Solid nickel pipe plug for sealing unused openings in large-diameter nickel piping for sulfuric acid plants. It is a tube or pipe fitting made of nickel, classified under tariff item 7507.20.00.

Nickel Pipe Return Bend

A 180-degree nickel return bend for U-shaped pipe runs in heat exchanger tube sheets. It is a tube or pipe fitting made of nickel, classified under tariff item 7507.20.00.

Nickel Reduction Coupling 1.5-inch

A threaded nickel coupling that reduces pipe diameter from 2-inch to 1.5-inch for connecting mismatched nickel tubes in marine piping systems. It is a tube or pipe fitting made of nickel, classified under tariff item 7507.20.00.

Nickel Socket Weld Union Fitting

A socket weld union fitting made of nickel for disconnectable joints in high-pressure nickel piping for desalination plants. It is a tube or pipe fitting made of nickel, classified under tariff item 7507.20.00.

Nickel Street Elbow Fitting

One end male, one end female nickel street elbow for tight space pipe turns in HVAC refrigeration lines. It is a tube or pipe fitting made of nickel, classified under tariff item 7507.20.00.

Nickel Swage Nipple Fitting

Tapered nickel swage nipple for reducing pipe size via socket weld in offshore platform piping. It is a tube or pipe fitting made of nickel, classified under tariff item 7507.20.00.