What is the difference between a pipe, tube and bar?

Today, we are answering a frequently asked question at Copper and Brass Sales – what is the difference between a pipe, tube, and hollow bar?

We’ve taken some time to jot down key difference and reference tools including what alloys we carry. Please contact us here, and we can direct you to a sales representative in your area if you need any of the metal pipe, tubing or hollow bar detailed below.

Pipe
Manufacturing Method: Seamless is extruded and drawn from a billet. Welded tube is produced from a strip that is roll formed and welded to produce a tube.
Measurement: They are specified by “Nominal Pipe Size” (NPS) and Schedule (wall thickness).
Shapes: Round
Materials Available from Copper and Brass Sales: Aluminum Alloys 6061, 6063, 6101Copper C10200, C12200Brass C23000

Tube
Manufacturing Method:
Tubes are created by using slit coils of metal and putting it through a tube mill, a series of dies. Once the required shape, round, square or rectangle, has been formed, the edges are welded together.
Measurement: Tubing size is specified by OD and the wall thickness (WT)Shapes: Round, Square, Rectangle
Materials Available from Copper and Brass Sales: Round: Aluminum Alloys 1100, 2024, 3003, 6061, 6063, 6262. Stainless Steel Alloy 304,

Hollow Bar
Manufacturing Method: Hollow Bars can be manufactured either by putting a drill through a solid bar or by centrifugal casting, where a mold is rotated at fast speeds while the molten metal is added.
Measurement: Hollow bar is measured by the outer diameter and the inner diameter.
Shapes: Round
Materials Available from Copper and Brass Sales: Copper C17200, Brass C44300, Bronze C86300, C93200, C95400

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