ASTM B221 Tubing | McMaster-Carr

Move bulk material, exhaust gas, or suck up dust in powerful vacuum systems—this tubing is large enough to transfer pellets and debris and strong enough to withstand nearly perfect vacuum. Made of aluminum, it’s lighter weight than steel tubing, so it’s best when you need to reduce the weight of your system. It also resists corrosion from frequent rinsing, humidity, and rain.

Low-Pressure Aluminum Threaded Pipe Fittings

In addition to being lightweight, these aluminum fittings offer good corrosion resistance. Use them in low-pressure flow applications.

High-Pressure Aluminum Threaded Pipe Fittings

Also known as Pressure Class 3000 fittings, these have the highest pressure rating of all the aluminum pipe fittings we offer.

Multipurpose Aluminum

Multipurpose 6061 Aluminum Round Tubes

The most widely used aluminum, 6061 is fabricated into everything from pipe fittings and containers to automotive and aerospace parts. It is strong and corrosion resistant, plus it's easy to machine and weld.

Polished Multipurpose 6061 Aluminum Round Tubes

Polished on the outside to a #8 reflective, mirror-like finish, these tubes have no visible grain lines.

Anodized Multipurpose 6061
Aluminum Round Tubes

An anodized coating forms a bond to the inside, outside, and ends of these tubes to improve wear and corrosion resistance.

Multipurpose 6061 Aluminum Rectangular Tubes

Multipurpose 6061 Aluminum Hex Tubes

Architectural 6063 Aluminum Round Tubes

More corrosion resistant and easier to form than multipurpose 6061 aluminum, 6063 is primarily used for exterior railings, decorative trim, and door frames.

Anodized Architectural 6063
Aluminum Round Tubes

The outside of these tubes is anodized to improve wear and corrosion resistance.

Architectural 6063 Aluminum Rectangular Tubes

More corrosion resistant and easier to form than multipurpose 6061 aluminum, 6063 is primarily used for exterior railings, decorative trim, and door frames.

Easy-to-Machine 6005 Aluminum

Often used in structural applications to reinforce joints, these 6005 aluminum triangular tubes are lightweight, corrosion resistant, and easier to machine and form than 6061 aluminum.

Pipe, Tubing, Hose, and Fittings

Vacuum-Rated Large-Diameter Aluminum Tubing