What are alloy steel pipes?
Alloy steel pipes are hollow pipe with round cross section for the conveyance of products. The products include fluids, gas, pellets, powders and more. The word pipe is used as distinguished from tube to apply to tubular products of dimensions commonly used for pipeline and piping systems.
Alloy steel is steel that is alloyed with a variety of elements in total amounts between 1.0% and 50% by weight to improve its mechanical properties. Allows is not steels are broken down arbitrary: Smith and Hashemi define the difference at 4.0%, while Degarmo, define it at 8.0%. Most commonly, the phrase “alloy steel” refers to low-alloy steels.
Strictly speaking, every steel is an alloy, but not all steels are called “alloy steels”. The simplest steels areiron (Fe) alloyed with carbon (C) (about 0.1% to 1%, depending on type). However, the term “alloy steel” is the standard term referring to steels with other alloying elements added deliberately in addition to the carbon. Common alloyants include manganese (the most common one), nickel, chromium, molybdenum, vanadium, silicon, and boron. Less common alloy include aluminum, cobalt, copper, cerium, niobium, titanium, tungsten, tin, zinc, lead, andzirconium.
The following is a range of improved properties in alloy steels (as compared to carbon steels): strength, hardness,toughness, wear resistance, corrosion resistance, harden-ability, and hot hardness. To achieve some of these improved properties the metal may require heat treating.
Some of these find uses in exotic and highly-demanding applications, such as in the turbine blades of jet engines, in spacecraft, and in nuclear reactors. Because of the ferromagnetic properties of iron, some steel alloys find important applications where their responses to magnetism are very important, including in electric motors and in transformers.
Alloy steel pipe is a kind of seamless steel pipe, its performance is much higher than the general seamless steel pipe, because this steel pipe inside containing Cr, high temperature resistance, low temperature, corrosion-resistant performance of other non-pipe joints not match, so the more extensive use of alloy steel pipe in the petroleum, aerospace, chemical, electric power, boiler, military, and other industries.
The main use of alloy steel pipe used in power plants, nuclear power, high-pressure boiler, high temperature super heater and re-heater high pressure and high temperature piping and equipment, it is made of high quality carbon steel, alloy structural steel and heat-resistant stainless steel material, hot-rolled (extrusion, expansion) or cold-rolled (pull) made.
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