ASTM A178 boiler tube

What is Steel pipe and tube?

A steel pipe and tube are in many cases, used interchangeably and are common in the industry. However, steel pipes and tubes have some differences, like the way are ordered and have tolerances. Pipes are ordered based on their schedule number and nominal pipe size. Steel tube stockists are ordered based on their outer diameter and wall thickness. Tubing is preferred in applications that require precision, while pipes allow for efficiently transporting media.

Steel Pipe End types

Typically, pipe ends fall into one of four groups:

steel pipe end types

What is the difference between steel pipe and tube? Is steel pipe stronger than steel tubing?

Pipes and tubes are common in piping equipment that is used in different applications. A steel pipe is designed in a round shape, while tubes can be produced in a square, rectangular, and round shapes. Tubes can be cold, as well as hot rolled, while pipes are only hot rolled. Steel round tubing is stronger than pipes and is used in applications where durability is required. Pipes can accommodate larger applications, but tubing is used in smaller diameters.

How steel pipes are manufactured?

Pipes can be manufactured based on several techniques. Standard pipes are manufactured with a seam or without a seam. The seamless production process is produced via an extrusion process. Pipes with seams can be produced in fusion welding, electric resistance welding, and submerged arc welding process.

What are different Underground Steel Pipe Coating ?

Coating and wrapping styles for Underground Steel Pipe

carbon steel pipe coating
  • Fusion Bonded Epoxy Coating (FBE)
  • Coal tar-based Coating
  • Dual-layer Fusion Bonded Epoxy Coating (FBE)
  • Poly glass Coatings
  • Three Layer Polyethylene/Polypropylene Coating (3LPE/3LPP)

The difference between tubes and tubes

According to American National Standards, ASME B31.1-2004 describes the difference between Tube and Tube as follows: “Tube and tube: the fundamental difference between pipe and tube is the dimensional pattern to which each is manufactured. “In Engineering, tube diameter less than 6” generally refers to the tube, using ASTM A269 standards for OD (Outer Diameter) * WT (Wall Thickness) and piping using ASTM A312 standards for SN (Programming Numbers) * WT.

Here are the main differences between tubes and tubes.

1, different form

The tubes can come in various shapes such as square, rectangular and cylindrical. The tube is always cylindrical or round.

2, different hardness

Although rigid tubes are frequently used in structural applications, copper and brass tubes can be quite flexible. The tubes are usually always rigid and resistant to bending.

3, Different classification

When it comes to sorting, pipes use nominal schedule and diameter. For example, a tube could have a nominal diameter of 250 mm and a program of 80. Tubes are classified by their outer diameter measurement and thickness. A copper tube, for example, could be 10 mm with a thickness of 2 mm.

4, diverse using the environment

The pipes fit larger applications with sizes ranging from half an inch to several feet. Tubes are generally used in applications that require smaller diameters. While 10-inch pipes are common, it is rare that you will come across a 10-inch pipe.

5, different requirement

Tubes are often used in applications that require precise outer diameters, such as with cooler tubes, heat exchanger tubes and boiler tubes. Pipes have a pressure rating and are programmed, so they are often used to transport fluids they must contain.

6, different way that assembles

Joining pipes is more laborious, as it requires welding, threading or flanges. Tubes can be quickly and easily bonded with burning, brazing or couplings, but for this reason, they do not offer the same stability.

Engine steel tubes