The Advantages of Alloy Steel Pipe

The Advantages of Alloy Steel Pipe

With the continuous development, alloy steel pipe is applied to the more and more field, whether it is in the water, oil or gas and other fields, alloy steel pipe prospects is very broad, here in this article we will discuss the comparative advantage of alloy steel pipes.

When other elements comprising metals and non-metals are added to carbon steel, alloy steel is formed. These alloy steels display various environmental, chemical and physical properties that can vary with the elements used to alloy. Here the proportion of alloying elements can provide different mechanical properties. Alloy steels contain alloying elements (e.g. manganese, silicon, nickel, titanium, copper, chromium, and aluminum) in varying proportions in order to manipulate the steel’s properties, such as its hardenability, corrosion resistance, strength, formability, weldability or ductility. The main applications of alloy steel pipe are a power station, nuclear power plant, high-pressure boiler, high temperature superheated and re-heater coil, etc. of high-temperature pipeline and equipment.

Advantages of Alloy Steel Pipes

High Strength

Some alloy steels like chrome moly pipe because of the chemical makeup of Molybdenum (Mo) and Chromium (Cr). Molybdenum increases the strength of steel as well as the elastic limit, resistance to wear, impact qualities, and hardenability. Chrome raises the tensile strength, yield, and hardness.  The composition chrome moly alloy steel pipe make it ideal for use in power plants, refineries, petro chemical plants, and oil field services where fluids and gases are transported at extremely high temperatures and pressures.

Corrosion Resistance

When metals encounter oxygen, they can undergo oxidation reactions. This, in turn, causes corrosion.

Chromium (or chrome), is virtually irreplaceable in resisting oxidation at elevated temperatures, making Alloy Steels more resistant to corrosion than most metals. This allows them to maintain their integrity for longer than other metals, especially in marine environments where corrosion is particularly problematic.


Some alloy steels have an extremely low rate of thermal expansion or a very consistent and predictable pattern of expansion in specific temperature ranges. This makes them useful when you need a pipe that can maintain a uniform shape and size despite hot environments.

For example, Iron-36% nickel alloy almost doesn’t expand at all during moderate changes in temperatures. And when you add cobalt to the nickel and iron, you get a high-strength alloy steel that has a constant modulus of elasticity and a low coefficient of expansion.

 Shape Memory

Sometimes, a metallic material is needed that can return to its previous shape when it experiences heat. This type of material is called a shape memory alloy, and there are very few available on the market. Some alloy steel, however, have this characteristic, with nickel-titanium alloys being one of the most prominent shape memory alloys.

 Magnetic Permeability

Alloy Steels also have unique and interesting magnetic permeability characteristics. This has allowed them to become an integral component in designs for switchgear as well as direct current motors and generators.

These advantages have made alloy steels tubes & pipes, a popular material in a number of applications, including:

  • The petrochemical industry
  • Aircraft turbines
  • Medical engineering
  • Steam turbine power plants
  • Nuclear power plants


Alloy Steel P9 Pipes are 100% recycled, it is suitable for the national strategy of environmental protection, energy-saving, and resource-saving. Therefore, the national policy encourages the expansion of the high-pressure alloy steel pipe applications.

The Advantages of Alloy Steel Pipe

by admin time to read: 2 min